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Posted to commits@commons.apache.org by ki...@apache.org on 2012/09/16 20:08:32 UTC
svn commit: r1385335 [2/4] - in
/commons/proper/functor/branches/generators-FUNCTOR-14: ./ src/changes/
src/main/java/org/apache/commons/functor/generator/range/ src/site/xdoc/
src/test/java/org/apache/commons/functor/generator/range/
Modified: commons/proper/functor/branches/generators-FUNCTOR-14/src/site/xdoc/examples.xml
URL: http://svn.apache.org/viewvc/commons/proper/functor/branches/generators-FUNCTOR-14/src/site/xdoc/examples.xml?rev=1385335&r1=1385334&r2=1385335&view=diff
==============================================================================
--- commons/proper/functor/branches/generators-FUNCTOR-14/src/site/xdoc/examples.xml (original)
+++ commons/proper/functor/branches/generators-FUNCTOR-14/src/site/xdoc/examples.xml Sun Sep 16 18:08:31 2012
@@ -28,8 +28,10 @@
<p>
This page contains basic examples using <a href="apidocs/org/apache/commons/functor/Predicate.html">Predicates</a>,
<a href="apidocs/org/apache/commons/functor/Function.html">Functions</a>,
- <a href="apidocs/org/apache/commons/functor/Procedure.html">Procedures</a> and
- <a href="apidocs/org/apache/commons/functor/generator/Generator.html">Generators</a>.
+ <a href="apidocs/org/apache/commons/functor/Procedure.html">Procedures</a>,
+ <a href="apidocs/org/apache/commons/functor/generator/Generator.html">Generators</a>,
+ <a href="apidocs/org/apache/commons/functor/generator/range/Range.html">Ranges</a> and
+ <a href="apidocs/org/apache/commons/functor/aggregator/Aggregator.html">Aggregators</a>.
There are also examples using composition and more practical examples
at the bottom of this page.
</p>
@@ -104,6 +106,129 @@ for( Integer number : numbers ) {
</p>
</subsection>
+ <subsection name="Generators">
+ <p>
+ Apache Functor includes other objects that you can can use to code in
+ a less imperative way, like <em>Generators</em>. In the following
+ example, we create an <em>Integer Generator</em> that generates
+ integers from 1 to 4 (the right argument is non-inclusive). The
+ generator is wrapped within a <em>Filtered Generator</em> that applies
+ the isEven predicate to each integer generated by the former generator.
+ Finally, we execute a <em>Composite Unary Procedure</em> that uses
+ a function to double the value of the integer before printing it.
+ </p>
+<source>
+Generator<Integer> integerGenerator = new IntegerRange(1, 5); // inclusive, exclusive
+
+UnaryPredicate<Integer> isEven = new UnaryPredicate<Integer>() {
+ public boolean test(Integer obj) {
+ return obj % 2 == 0;
+ }
+};
+
+FilteredGenerator<Integer> filteredGenerator =
+ new FilteredGenerator<Integer>(integerGenerator, isEven);
+
+UnaryFunction<Integer, Integer> doubler = new UnaryFunction<Integer, Integer>() {
+ public Integer evaluate(Integer obj) {
+ return obj * 2;
+ }
+};
+
+UnaryProcedure<Integer> print = new UnaryProcedure<Integer>() {
+ public void run(Integer obj) {
+ System.out.print(obj + " ");
+ }
+};
+
+CompositeUnaryProcedure<Integer> compositeProcedure =
+ new CompositeUnaryProcedure<Integer>(print);
+
+filteredGenerator.run(compositeProcedure.of(doubler));
+</source>
+ <p>
+ The <a href="http://svn.apache.org/viewvc/commons/proper/functor/trunk/src/test/java/org/apache/commons/functor/example/lines/">lines</a>
+ package demonstrates a functional approach to IO using Generators and the Algorithms class.
+ </p>
+ </subsection>
+
+ <subsection name="Ranges">
+ <p>
+ Using <em>Ranges</em> you are able to create a series of elements of
+ a certain type. The distance between each element is called
+ <em>step</em>. And the <em>left</em> and <em>right</em> limits are
+ <em>endpoints</em>.
+ </p>
+ <p>
+ By default, in numeric ranges the left value is inclusive and the
+ right is exclusive. The range below creates a series of Integers
+ between <em>0</em> and <em>10</em>, with a default step of <em>1</em>.
+ </p>
+<source>
+// [0, 10), 1 = 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
+IntegerRange range = new IntegerRange(0, 10);
+</source>
+ <p>
+ The step value can be changed, altering the distance between each
+ element in the range. As shown below.
+ </p>
+<source>
+// [0, 10), 2 = 0, 2, 4, 6, 8
+IntegerRange range = new IntegerRange(0, 10, 2);
+</source>
+ <p>
+ It is possible, too, to define the <em>bound type</em> of each endpoint.
+ It is similar to mathematical intervals, where a
+ <em>closed</em> endpoint means that the value is included in the
+ series of elements in the range. On the other hand, an <em>open</em>
+ endpoint means that the value is not included.
+ </p>
+<source>
+// (0, 10], 2 = 2, 4, 6, 8, 10
+IntegerRange range = new IntegerRange(0, BoundType.OPEN, 10, BoundType.CLOSED, 2);
+</source>
+ <p>
+ A Range is also by nature a Generator, so you can use it for executing
+ procedures for each of its elements.
+ </p>
+<source>
+// [0, 10), 1 = 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
+IntegerRange range = new IntegerRange(0, 10);
+UnaryProcedure<Integer> printProcedure = new UnaryProcedure<Integer>() {
+
+ public void run(Integer obj) {
+ System.out.print(obj + " ");
+ }
+};
+range.run(printProcedure);
+</source>
+ <p>
+ The code above produces the following output: 0 1 2 3 4 5 6 7 8 9
+ </p>
+ </subsection>
+
+ <subsection name="Aggregators">
+ <p>
+ There are some code snippets / examples for the <code>org.apache.commons.functor.aggregator</code> package
+ available on <a href="aggregator.html">this page</a>. Also, to exemplify the usage of the <code>Aggregator</code>
+ classes, there are code examples in the test section.
+ </p>
+ <p>
+ First such set of example involves the usage of the <i>nostore</i> <code>Aggregator</code>. Code can be found in
+ <a href="http://svn.apache.org/viewvc/commons/proper/functor/trunk/src/test/java/org/apache/commons/functor/example/aggregator/nostore/">org.apache.commons.functor.example.aggregator.nostore</a>.
+ This shows how can you use an aggregator which doesn't store the data series and processes them on the fly.
+ Also, there are examples provided which show how can you implement your own aggregation function
+ to be used with this <code>Aggregator</code> type.
+ </p>
+ <p>
+ For using an <code>Aggregator</code> which stores the data series in a list, examples are in
+ <a href="http://svn.apache.org/viewvc/commons/proper/functor/trunk/src/test/java/org/apache/commons/functor/example/aggregator/list/">org.apache.commons.functor.example.aggregator.list</a>.
+ This shows how can you use the <code>ArrayList</code>-backed aggregator or provide your own <code>List</code>-based implementation.
+ Also, there are examples provided which show how can you implement your own aggregation function
+ to be used with this <code>Aggregator</code> type.
+ </p>
+ </subsection>
+
<subsection name="Reuse Through Composition">
<p>
The <em>Functor</em> package, and more generally, a functional approach
@@ -178,74 +303,6 @@ for( Integer number : numbers ) {
</p>
</subsection>
- <subsection name="Generators">
- <p>
- Apache Functor includes other objects that you can can use to code in
- a less imperative way, like <em>Generators</em>. In the following
- example, we create an <em>Integer Generator</em> that generates
- integers from 1 to 4 (the right argument is non-inclusive). The
- generator is wrapped within a <em>Filtered Generator</em> that applies
- the isEven predicate to each integer generated by the former generator.
- Finally, we execute a <em>Composite Unary Procedure</em> that uses
- a function to double the value of the integer before printing it.
- </p>
-<source>
-Generator<Integer> integerGenerator = new IntegerRange(1, 5); // inclusive, exclusive
-
-UnaryPredicate<Integer> isEven = new UnaryPredicate<Integer>() {
- public boolean test(Integer obj) {
- return obj % 2 == 0;
- }
-};
-
-FilteredGenerator<Integer> filteredGenerator =
- new FilteredGenerator<Integer>(integerGenerator, isEven);
-
-UnaryFunction<Integer, Integer> doubler = new UnaryFunction<Integer, Integer>() {
- public Integer evaluate(Integer obj) {
- return obj * 2;
- }
-};
-
-UnaryProcedure<Integer> print = new UnaryProcedure<Integer>() {
- public void run(Integer obj) {
- System.out.print(obj + " ");
- }
-};
-
-CompositeUnaryProcedure<Integer> compositeProcedure =
- new CompositeUnaryProcedure<Integer>(print);
-
-filteredGenerator.run(compositeProcedure.of(doubler));
-</source>
- <p>
- The <a href="http://svn.apache.org/viewvc/commons/proper/functor/trunk/src/test/java/org/apache/commons/functor/example/lines/">lines</a>
- package demonstrates a functional approach to IO using Generators and the Algorithms class.
- </p>
- </subsection>
-
- <subsection name="Aggregators">
- <p>
- There are some code snippets / examples for the <code>org.apache.commons.functor.aggregator</code> package
- available on <a href="aggregator.html">this page</a>. Also, to exemplify the usage of the <code>Aggregator</code>
- classes, there are code examples in the test section.
- </p>
- <p>
- First such set of example involves the usage of the <i>nostore</i> <code>Aggregator</code>. Code can be found in
- <a href="http://svn.apache.org/viewvc/commons/proper/functor/trunk/src/test/java/org/apache/commons/functor/example/aggregator/nostore/">org.apache.commons.functor.example.aggregator.nostore</a>.
- This shows how can you use an aggregator which doesn't store the data series and processes them on the fly.
- Also, there are examples provided which show how can you implement your own aggregation function
- to be used with this <code>Aggregator</code> type.
- </p>
- <p>
- For using an <code>Aggregator</code> which stores the data series in a list, examples are in
- <a href="http://svn.apache.org/viewvc/commons/proper/functor/trunk/src/test/java/org/apache/commons/functor/example/aggregator/list/">org.apache.commons.functor.example.aggregator.list</a>.
- This shows how can you use the <code>ArrayList</code>-backed aggregator or provide your own <code>List</code>-based implementation.
- Also, there are examples provided which show how can you implement your own aggregation function
- to be used with this <code>Aggregator</code> type.
- </p>
- </subsection>
-
<subsection name="Code Katas">
<p>
"Pragmatic" Dave Thomas has been
Added: commons/proper/functor/branches/generators-FUNCTOR-14/src/test/java/org/apache/commons/functor/generator/range/TestCharacterRange.java
URL: http://svn.apache.org/viewvc/commons/proper/functor/branches/generators-FUNCTOR-14/src/test/java/org/apache/commons/functor/generator/range/TestCharacterRange.java?rev=1385335&view=auto
==============================================================================
--- commons/proper/functor/branches/generators-FUNCTOR-14/src/test/java/org/apache/commons/functor/generator/range/TestCharacterRange.java (added)
+++ commons/proper/functor/branches/generators-FUNCTOR-14/src/test/java/org/apache/commons/functor/generator/range/TestCharacterRange.java Sun Sep 16 18:08:31 2012
@@ -0,0 +1,740 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.commons.functor.generator.range;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
+
+import org.apache.commons.functor.BaseFunctorTest;
+import org.apache.commons.functor.UnaryFunction;
+import org.apache.commons.functor.UnaryProcedure;
+import org.apache.commons.functor.generator.Generator;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+/**
+ * @version $Revision: $ $Date: $
+ */
+public class TestCharacterRange extends BaseFunctorTest {
+ // A base range with all chars between a and m
+ private final List<Character> fullRange = Collections.unmodifiableList(Arrays.asList('a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm'));
+
+ // Attributes
+ // ------------------------------------------------------------------------
+
+ private CharacterRange ascCharRange = null;
+ private CharacterRange descCharRange = null;
+ private Collection<Character> expectedAsc = null;
+ private Collection<Character> expectedDesc = null;
+
+ // Test set up
+ // ------------------------------------------------------------------------
+ @Before
+ public void setUp() {
+ ascCharRange = Ranges.characterRange('b', 'k');
+ descCharRange = Ranges.characterRange('k', 'b');
+ expectedAsc = Arrays.asList('b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k');
+ expectedDesc = Arrays.asList('k', 'j', 'i', 'h', 'g', 'f', 'e', 'd', 'c', 'b');
+ }
+
+ @After
+ public void tearDown() {
+ ascCharRange = null;
+ descCharRange = null;
+ }
+
+ @Override
+ protected Object makeFunctor()
+ throws Exception {
+ return Ranges.characterRange('b', 'k');
+ }
+
+ // Generator tests
+ // ---------------------------------------------------------------
+
+ @Test
+ public void testStepChecking() {
+ {
+ Ranges.characterRange('b', 'b', 0); // step of 0 is ok when range is
+ // empty
+ }
+ {
+ Ranges.characterRange('b', 'b', 1); // positive step is ok when range
+ // is empty
+ }
+ {
+ Ranges.characterRange('b', 'b', -1); // negative step is ok when range
+ // is empty
+ }
+ {
+ Ranges.characterRange('a', 'b', 10); // big steps are ok
+ }
+ {
+ Ranges.characterRange('b', 'a', -10); // big steps are ok
+ }
+ try {
+ Ranges.characterRange('a', 'b', 0);
+ fail("Expected IllegalArgumentException");
+ } catch (IllegalArgumentException e) {
+ // expected
+ }
+ try {
+ Ranges.characterRange('a', 'b', -1);
+ fail("Expected IllegalArgumentException");
+ } catch (IllegalArgumentException e) {
+ // expected
+ }
+ try {
+ Ranges.characterRange('b', 'a', 1);
+ fail("Expected IllegalArgumentException");
+ } catch (IllegalArgumentException e) {
+ // expected
+ }
+ }
+
+ @Test
+ public void testObjectConstructor() {
+ CharacterRange range = Ranges.characterRange(new Character('a'),
+ new Character('e'));
+ assertEquals("[a, b, c, d, e]", range.toCollection().toString());
+ range = Ranges.characterRange(new Character('a'), new Character('e'),
+ new Integer(1));
+ assertEquals("[a, b, c, d, e]", range.toCollection().toString());
+ }
+
+ @Test
+ public void testReverseStep() {
+ CharacterRange range = Ranges.characterRange('k', 'a', -2);
+ assertEquals("[k, i, g, e, c, a]", range.toCollection().toString());
+ assertEquals("[k, i, g, e, c, a]", range.toCollection().toString());
+ }
+
+ @Test
+ public void testStep() {
+ CharacterRange range = Ranges.characterRange('a', 'k', 2);
+ assertEquals("[a, c, e, g, i, k]", range.toCollection().toString());
+ assertEquals("[a, c, e, g, i, k]", range.toCollection().toString());
+ }
+
+ @Test
+ public void testForwardRange() {
+ CharacterRange range = Ranges.characterRange('a', 'e');
+ assertEquals("[a, b, c, d, e]", range.toCollection().toString());
+ assertEquals("[a, b, c, d, e]", range.toCollection().toString());
+ }
+
+ @Test
+ public void testReverseRange() {
+ CharacterRange range = Ranges.characterRange('e', 'a');
+ assertEquals("[e, d, c, b, a]", range.toCollection().toString());
+ assertEquals("[e, d, c, b, a]", range.toCollection().toString());
+ }
+
+ // @Test
+ // public void testEdgeCase() {
+ // CharacterRange range = Ranges.characterRange(Character.MAX_VALUE-3,
+ // Character.MAX_VALUE);
+ // assertEquals("[2147483644, 2147483645, 2147483646]",
+ // range.toCollection().toString());
+ // assertEquals("[2147483644, 2147483645, 2147483646]",
+ // range.toCollection().toString());
+ // }
+
+ @Test
+ public void testBoundaries() {
+ CharacterRange range = Ranges.characterRange('b', 'l');
+ assertEquals(new Endpoint<Comparable<?>>('b', BoundType.CLOSED),
+ range.getLeftEndpoint());
+ assertEquals(new Endpoint<Comparable<?>>('l', BoundType.CLOSED),
+ range.getRightEndpoint());
+ }
+
+ @Test
+ public void testClosedClosedAscending() {
+ // [b, l], 3 = b, e, h, k
+ CharacterRange range = Ranges.characterRange('b', BoundType.CLOSED, 'l', BoundType.CLOSED, 3);
+ // [b, l], 3 = b, e, h, k
+ List<Character> expected = Arrays.asList('b', 'e', 'h', 'k');
+ Collection<Character> elements = range.toCollection();
+ assertEquals(expected, elements);
+ }
+
+ @Test
+ public void testOpenClosedAscending() {
+ // (b, l], 3 = e, h, k
+ CharacterRange range = Ranges.characterRange('b', BoundType.OPEN, 'l', BoundType.CLOSED, 3);
+ // (b, l], 3 = e, h, k
+ List<Character> expected = Arrays.asList('e', 'h', 'k');
+ Collection<Character> elements = range.toCollection();
+ assertEquals(expected, elements);
+ }
+
+ @Test
+ public void testClosedOpenAscending() {
+ // [b, l), 3 = b, e, h, k
+ CharacterRange range = Ranges.characterRange('b', BoundType.CLOSED, 'l', BoundType.OPEN, 3);
+ // [b, l), 3 = b, e, h, k
+ List<Character> expected = Arrays.asList('b', 'e', 'h', 'k');
+ Collection<Character> elements = range.toCollection();
+ assertEquals(expected, elements);
+ }
+
+ @Test
+ public void testOpenOpenAscending() {
+ // (b, l), 3 = e, h, k
+ CharacterRange range = Ranges.characterRange('b', BoundType.OPEN, 'l', BoundType.OPEN, 3);
+ // (b, l), 3 = e, h, k
+ List<Character> expected = Arrays.asList('e', 'h', 'k');
+ Collection<Character> elements = range.toCollection();
+ assertEquals(expected, elements);
+ }
+
+ @Test
+ public void testSingleStepAscending() {
+ // (d, h], 1 = e, f, g, h
+ CharacterRange range = Ranges.characterRange('d', BoundType.OPEN, 'h', BoundType.CLOSED, 1);
+ // (d, h], 1 = e, f, g, h
+ List<Character> expected = Arrays.asList('e', 'f', 'g', 'h');
+ Collection<Character> elements = range.toCollection();
+ assertEquals(expected, elements);
+ }
+
+ @Test
+ public void testClosedClosedDescending() {
+ // [l, b], -3 = l, i, f, c
+ CharacterRange range = Ranges.characterRange('l', BoundType.CLOSED, 'b',
+ BoundType.CLOSED, -3);
+ // [l, b], -3 = l, i, f, c
+ List<Character> expected = Arrays.asList('l', 'i', 'f', 'c');
+ Collection<Character> elements = range.toCollection();
+ assertEquals(expected, elements);
+ }
+
+ @Test
+ public void testOpenClosedDescending() {
+ // (l, b], -3 = i, f, c
+ CharacterRange range = Ranges.characterRange('l', BoundType.OPEN, 'b',
+ BoundType.CLOSED, -3);
+ // (l, b], -3 = i, f, c
+ List<Character> expected = Arrays.asList('i', 'f', 'c');
+ Collection<Character> elements = range.toCollection();
+ assertEquals(expected, elements);
+ }
+
+ @Test
+ public void testClosedOpenDescending() {
+ // [l, b), -3 = l, i, f, c
+ CharacterRange range = Ranges.characterRange('l', BoundType.CLOSED, 'b',
+ BoundType.OPEN, -3);
+ // [l, b), -3 = l, i, f, c
+ List<Character> expected = Arrays.asList('l', 'i', 'f', 'c');
+ Collection<Character> elements = range.toCollection();
+ assertEquals(expected, elements);
+ }
+
+ @Test
+ public void testOpenOpenDescending() {
+ // (l, b), -3 = i, f, c
+ CharacterRange range = Ranges.characterRange('l', BoundType.OPEN, 'b',
+ BoundType.OPEN, -3);
+ // (l, b), -3 = i, f, c
+ List<Character> expected = Arrays.asList('i', 'f', 'c');
+ Collection<Character> elements = range.toCollection();
+ assertEquals(expected, elements);
+ }
+
+ @Test
+ public void testSingleStepDescending() {
+ // [h, d), -1 = h, g, f
+ CharacterRange range = Ranges.characterRange('h', BoundType.CLOSED, 'e',
+ BoundType.OPEN, -1);
+ // [h, d), -1 = h, g, f
+ List<Character> expected = Arrays.asList('h', 'g', 'f');
+ Collection<Character> elements = range.toCollection();
+ assertEquals(expected, elements);
+ }
+
+ @Test
+ public void testAscending() {
+ final List<Character> list = new ArrayList<Character>();
+ ascCharRange.run(new UnaryProcedure<Character>() {
+
+ public void run(Character obj) {
+ list.add(obj);
+ }
+ });
+ assertTrue(expectedAsc.containsAll(list));
+ }
+
+ @Test
+ public void testDescending() {
+ final List<Character> list = new ArrayList<Character>();
+ descCharRange.run(new UnaryProcedure<Character>() {
+
+ public void run(Character obj) {
+ list.add(obj);
+ }
+ });
+ assertTrue(expectedDesc.containsAll(list));
+ }
+
+ @Test
+ public void testToCollection() {
+ Collection<Character> ascCol = ascCharRange.toCollection();
+ assertEquals("Different collections", expectedAsc, ascCol);
+ Collection<Character> descCol = descCharRange.toCollection();
+ assertEquals("Different collections", expectedDesc, descCol);
+ }
+
+ @Test
+ public void testTransformedGenerator() {
+ int expected = 10;
+ List<Character> list = ascCharRange
+ .to(new UnaryFunction<Generator<? extends Character>, List<Character>>() {
+
+ public List<Character> evaluate(Generator<? extends Character> obj) {
+ List<Character> chars = new ArrayList<Character>();
+ for (Object element : obj.toCollection()) {
+ chars.add((Character) element);
+ }
+ return chars;
+ }
+ });
+ assertEquals(expected, list.size());
+ expected = 10;
+ list = descCharRange
+ .to(new UnaryFunction<Generator<? extends Character>, List<Character>>() {
+
+ public List<Character> evaluate(Generator<? extends Character> obj) {
+ List<Character> chars = new ArrayList<Character>();
+ for (Object element : obj.toCollection()) {
+ chars.add((Character) element);
+ }
+ return chars;
+ }
+ });
+ assertEquals(expected, list.size());
+ }
+
+ // Range tests
+ // ---------------------------------------------------------------
+
+ @Test
+ public void testEmptyRanges() {
+ CharacterRange empty1 = Ranges.characterRange('a', BoundType.OPEN, 'b',
+ BoundType.OPEN, 2);
+ assertTrue("The range was expected to be empty.", empty1.isEmpty());
+ CharacterRange empty2 = Ranges.characterRange('c', BoundType.OPEN, 'a',
+ BoundType.OPEN, -2);
+ assertTrue("The range was expected to be empty.", empty2.isEmpty());
+ CharacterRange empty3 = Ranges.characterRange('a', BoundType.OPEN, 'b',
+ BoundType.CLOSED, 2);
+ assertTrue("The range was expected to be empty.", empty3.isEmpty());
+ CharacterRange empty4 = Ranges.characterRange('a', BoundType.OPEN, 'a',
+ BoundType.OPEN, 1);
+ assertTrue("The range was expected to be empty.", empty4.isEmpty());
+ CharacterRange empty5 = Ranges.characterRange('b', BoundType.CLOSED, 'b',
+ BoundType.OPEN, 1);
+ assertTrue("The range was expected to be empty.", empty5.isEmpty());
+ CharacterRange empty6 = Ranges.characterRange('d', BoundType.OPEN, 'c',
+ BoundType.CLOSED, -2);
+ assertTrue("The range was expected to be empty.", empty6.isEmpty());
+ CharacterRange notEmpty1 = Ranges.characterRange('a', BoundType.CLOSED,
+ 'a', BoundType.CLOSED, 1);
+ assertFalse("The range was not expected to be empty.",
+ notEmpty1.isEmpty());
+ CharacterRange notEmpty2 = Ranges.characterRange('a', BoundType.OPEN, 'b',
+ BoundType.CLOSED, 1);
+ assertFalse("The range was not expected to be empty.",
+ notEmpty2.isEmpty());
+ CharacterRange notEmpty3 = Ranges.characterRange('b', BoundType.OPEN, 'a',
+ BoundType.CLOSED, -1);
+ assertFalse("The range was not expected to be empty.",
+ notEmpty3.isEmpty());
+ CharacterRange notEmpty4 = Ranges.characterRange('b', BoundType.CLOSED,
+ 'a', BoundType.OPEN, -1);
+ assertFalse("The range was not expected to be empty.",
+ notEmpty4.isEmpty());
+ CharacterRange notEmpty5 = Ranges.characterRange('a', BoundType.CLOSED,
+ 'b', BoundType.OPEN, 1);
+ assertFalse("The range was not expected to be empty.",
+ notEmpty5.isEmpty());
+ }
+
+ @Test
+ public void testClosedClosedAscendingContains() {
+ // [b, l], 3 = 'b', 'e', 'h', 'k'
+ CharacterRange range = Ranges.characterRange('b', BoundType.CLOSED, 'l',
+ BoundType.CLOSED, 3);
+ // [b, l], 3 = 'b', 'e', 'h', 'k'
+ List<Character> arr = Arrays.asList('b', 'e', 'h', 'k');
+ for (Character element : arr) {
+ assertTrue("Expected element [" + element +
+ "] is missing in range [" + range + "]",
+ range.contains(element));
+ }
+ List<Character> elementsNotPresent = new ArrayList<Character>(fullRange);
+ elementsNotPresent.removeAll(arr);
+ for (Character element : elementsNotPresent) {
+ assertFalse("Unexpected element [" + element +
+ "] is present in range [" + range + "]",
+ range.contains(element));
+ }
+ }
+
+ @Test
+ public void testOpenClosedAscendingContains() {
+ // (b, l], 3 = 'e', 'h', 'k'
+ CharacterRange range = Ranges.characterRange('b', BoundType.OPEN, 'l',
+ BoundType.CLOSED, 3);
+ // (b, l], 3 = 'e', 'h', 'k'
+ List<Character> arr = Arrays.asList('e', 'h', 'k');
+ for (Character element : arr) {
+ assertTrue("Expected element [" + element +
+ "] is missing in range [" + range + "]",
+ range.contains(element));
+ }
+ List<Character> elementsNotPresent = new ArrayList<Character>(fullRange);
+ elementsNotPresent.removeAll(arr);
+ for (Character element : elementsNotPresent) {
+ assertFalse("Unexpected element [" + element +
+ "] is present in range [" + range + "]",
+ range.contains(element));
+ }
+ }
+
+ @Test
+ public void testClosedOpenAscendingContains() {
+ // [b, l), 3 = 'b', 'e', 'h', 'k'
+ CharacterRange range = Ranges.characterRange('b', BoundType.CLOSED, 'l',
+ BoundType.OPEN, 3);
+ // [b, l), 3 = 'b', 'e', 'h', 'k'
+ List<Character> arr = Arrays.asList('b', 'e', 'h', 'k');
+ for (Character element : arr) {
+ assertTrue("Expected element [" + element +
+ "] is missing in range [" + range + "]",
+ range.contains(element));
+ }
+ List<Character> elementsNotPresent = new ArrayList<Character>(fullRange);
+ elementsNotPresent.removeAll(arr);
+ for (Character element : elementsNotPresent) {
+ assertFalse("Unexpected element [" + element +
+ "] is present in range [" + range + "]",
+ range.contains(element));
+ }
+ }
+
+ @Test
+ public void testOpenOpenAscendingContains() {
+ // (b, l), 3 = 'e', 'h', 'k'
+ CharacterRange range = Ranges.characterRange('b', BoundType.OPEN, 'l',
+ BoundType.OPEN, 3);
+ // (b, l), 3 = 'e', 'h', 'k'
+ List<Character> arr = Arrays.asList('e', 'h', 'k');
+ for (Character element : arr) {
+ assertTrue("Expected element [" + element +
+ "] is missing in range [" + range + "]",
+ range.contains(element));
+ }
+ List<Character> elementsNotPresent = new ArrayList<Character>(fullRange);
+ elementsNotPresent.removeAll(arr);
+ for (Character element : elementsNotPresent) {
+ assertFalse("Unexpected element [" + element +
+ "] is present in range [" + range + "]",
+ range.contains(element));
+ }
+ }
+
+ @Test
+ public void testContainsSingleStepAscending() {
+ // (b, l], 1 = 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l'
+ CharacterRange ascendingRange = Ranges.characterRange('b', BoundType.OPEN,
+ 'l',
+ BoundType.CLOSED, 1);
+ // (b, l], 1 = 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l'
+ List<Character> arr = Arrays.asList('c', 'd', 'e', 'f', 'g', 'h', 'i',
+ 'j', 'k', 'l');
+ for (Character element : arr) {
+ assertTrue("Expected element [" + element +
+ "] is missing in range [" + ascendingRange + "]",
+ ascendingRange.contains(element));
+ }
+ List<Character> elementsNotPresent = new ArrayList<Character>(fullRange);
+ elementsNotPresent.removeAll(arr);
+ for (Character element : elementsNotPresent) {
+ assertFalse("Unexpected element [" + element +
+ "] is present in range [" + ascendingRange +
+ "]",
+ ascendingRange.contains(element));
+ }
+ }
+
+ @Test
+ public void testClosedClosedDescendingContains() {
+ // [l, b], -3 = 'l', 'i', 'f', 'c'
+ CharacterRange range = Ranges.characterRange('l', BoundType.CLOSED, 'b',
+ BoundType.CLOSED, -3);
+ // [l, b], -3 = 'l', 'i', 'f', 'c'
+ List<Character> arr = Arrays.asList('l', 'i', 'f', 'c');
+ for (Character element : arr) {
+ assertTrue("Expected element [" + element +
+ "] is missing in range [" + range + "]",
+ range.contains(element));
+ }
+ List<Character> elementsNotPresent = new ArrayList<Character>(fullRange);
+ elementsNotPresent.removeAll(arr);
+ for (Character element : elementsNotPresent) {
+ assertFalse("Unexpected element [" + element +
+ "] is present in range [" + range + "]",
+ range.contains(element));
+ }
+ }
+
+ @Test
+ public void testOpenClosedDescendingContains() {
+ // (l, b], -3 = 'i', 'f', 'c'
+ CharacterRange range = Ranges.characterRange('l', BoundType.OPEN, 'b',
+ BoundType.CLOSED, -3);
+ // (l, b], -3 = 'i', 'f', 'c'
+ List<Character> arr = Arrays.asList('i', 'f', 'c');
+ for (Character element : arr) {
+ assertTrue("Expected element [" + element +
+ "] is missing in range [" + range + "]",
+ range.contains(element));
+ }
+ List<Character> elementsNotPresent = new ArrayList<Character>(fullRange);
+ elementsNotPresent.removeAll(arr);
+ for (Character element : elementsNotPresent) {
+ assertFalse("Unexpected element [" + element +
+ "] is present in range [" + range + "]",
+ range.contains(element));
+ }
+ }
+
+ @Test
+ public void testClosedOpenDescendingContains() {
+ // [l, b), -3 = 'l', 'i', 'f', 'c'
+ CharacterRange range = Ranges.characterRange('l', BoundType.CLOSED, 'b',
+ BoundType.OPEN, -3);
+ // [l, b), -3 = 'l', 'i', 'f', 'c'
+ List<Character> arr = Arrays.asList('l', 'i', 'f', 'c');
+ for (Character element : arr) {
+ assertTrue("Expected element [" + element +
+ "] is missing in range [" + range + "]",
+ range.contains(element));
+ }
+ List<Character> elementsNotPresent = new ArrayList<Character>(fullRange);
+ elementsNotPresent.removeAll(arr);
+ for (Character element : elementsNotPresent) {
+ assertFalse("Unexpected element [" + element +
+ "] is present in range [" + range + "]",
+ range.contains(element));
+ }
+ }
+
+ @Test
+ public void testOpenOpenDescendingContains() {
+ // (l, b), -3 = 'i', 'f', 'c'
+ CharacterRange range = Ranges.characterRange('l', BoundType.OPEN, 'b',
+ BoundType.OPEN, -3);
+ // (l, b), -3 = 'i', 'f', 'c'
+ List<Character> arr = Arrays.asList('i', 'f', 'c');
+ for (Character element : arr) {
+ assertTrue("Expected element [" + element +
+ "] is missing in range [" + range + "]",
+ range.contains(element));
+ }
+ List<Character> elementsNotPresent = new ArrayList<Character>(fullRange);
+ elementsNotPresent.removeAll(arr);
+ for (Character element : elementsNotPresent) {
+ assertFalse("Unexpected element [" + element +
+ "] is present in range [" + range + "]",
+ range.contains(element));
+ }
+ }
+
+ @Test
+ public void testContainsSingleStepDescending() {
+ // [l, b), -1 = 'l', 'k', 'j', 'i', 'h', 'g', 'f', 'e', 'd', 'c'
+ CharacterRange descendingRange = Ranges.characterRange('l',
+ BoundType.CLOSED,
+ 'b',
+ BoundType.OPEN, -1);
+ // [l, b), -1 = 'l', 'k', 'j', 'i', 'h', 'g', 'f', 'e', 'd', 'c'
+ List<Character> arr = Arrays.asList('l', 'k', 'j', 'i', 'h', 'g', 'f',
+ 'e', 'd', 'c');
+ for (Character element : arr) {
+ assertTrue("Expected element [" + element +
+ "] is missing in range [" + descendingRange +
+ "]",
+ descendingRange.contains(element));
+ }
+ List<Character> elementsNotPresent = new ArrayList<Character>(fullRange);
+ elementsNotPresent.removeAll(arr);
+ for (Character element : elementsNotPresent) {
+ assertFalse("Unexpected element [" + element +
+ "] is present in range [" + descendingRange +
+ "]",
+ descendingRange.contains(element));
+ }
+ }
+
+ @Test
+ public void testContainsNullOrEmpty() {
+ CharacterRange range = Ranges.characterRange('a', BoundType.OPEN, 'r',
+ BoundType.CLOSED, 1);
+ assertFalse(range.contains(null));
+ }
+
+ @SuppressWarnings("unchecked")
+ @Test
+ public void testContainsAll() {
+ // (c, g], 1 = d, e, f, g
+ CharacterRange range = Ranges.characterRange('c', BoundType.OPEN, 'g',
+ BoundType.CLOSED, 1);
+ List<Character> list = Arrays.asList('d', 'e', 'f', 'g');
+ assertTrue("Range [" + range +
+ "] was expected to contain all elements from list [" + list +
+ "]", range.containsAll(list));
+ List<Character> listWithExtraElements = Arrays.asList('a', 'd', 'e',
+ 'f', 'g', 'z');
+ assertFalse("Range [" + range + "] has more elements than expected",
+ range.containsAll(listWithExtraElements));
+ assertFalse(range.containsAll(null));
+ assertFalse(range.containsAll(Collections.EMPTY_LIST));
+ }
+
+ @Test
+ public void testEquals()
+ throws Exception {
+ // equals basic properties
+ CharacterRange range = Ranges.characterRange('a', BoundType.CLOSED, 'e',
+ BoundType.OPEN, 1);
+ assertEquals("equals must be reflexive", range, range);
+ assertEquals("hashCode must be reflexive", range.hashCode(),
+ range.hashCode());
+ assertTrue(!range.equals(null)); // should be able to compare to null
+
+ Object range2 = Ranges.characterRange('a', BoundType.CLOSED, 'e',
+ BoundType.OPEN, 1);
+ if (range.equals(range2)) {
+ assertEquals("equals implies hash equals", range.hashCode(),
+ range2.hashCode());
+ assertEquals("equals must be symmetric", range2, range);
+ } else {
+ assertTrue("equals must be symmetric", !range2.equals(range));
+ }
+
+ // Changing attributes
+ Object range3 = Ranges.characterRange('c', BoundType.CLOSED, 'e',
+ BoundType.OPEN, 1);
+ assertFalse("Invalid equals after changing attributes",
+ range.equals(range3));
+
+ Object range4 = Ranges.characterRange('a', BoundType.OPEN, 'e',
+ BoundType.OPEN, 1);
+ assertFalse("Invalid equals after changing attributes",
+ range.equals(range4));
+
+ Object range5 = Ranges.characterRange('a', BoundType.CLOSED, 'r',
+ BoundType.OPEN, 1);
+ assertFalse("Invalid equals after changing attributes",
+ range.equals(range5));
+
+ Object range6 = Ranges.characterRange('a', BoundType.CLOSED, 'e',
+ BoundType.CLOSED, 1);
+ assertFalse("Invalid equals after changing attributes",
+ range.equals(range6));
+
+ Object range7 = Ranges.characterRange('a', BoundType.CLOSED, 'e',
+ BoundType.OPEN, 2);
+ assertFalse("Invalid equals after changing attributes",
+ range.equals(range7));
+
+ // Using different constructors
+ Endpoint<Character> leftEndpoint = new Endpoint<Character>(
+ 'a',
+ BoundType.CLOSED);
+ Endpoint<Character> rightEndpoint = new Endpoint<Character>(
+ 'e',
+ BoundType.OPEN);
+ CharacterRange range8 = Ranges.characterRange(leftEndpoint, rightEndpoint,
+ 1);
+ assertEquals("Invalid equals using different constructor", range,
+ range8);
+ }
+
+ @Test
+ public void testToString() {
+ CharacterRange range = Ranges.characterRange('a', BoundType.OPEN, 'b',
+ BoundType.CLOSED, 1);
+ assertEquals("Wrong string value", "CharacterRange<(a, b], 1>",
+ range.toString());
+ }
+
+ @Test
+ public void testConstructorUsingSameEndpoint() {
+ Endpoint<Character> uniqueEndpoint = new Endpoint<Character>(
+ 'a',
+ BoundType.CLOSED);
+ try {
+ Ranges.characterRange(uniqueEndpoint, uniqueEndpoint, 1);
+ } catch (IllegalArgumentException e) {
+ fail("Not expected to get here");
+ }
+ }
+
+ @Test
+ public void testInvalidRange() {
+ try {
+ Ranges.characterRange('a', BoundType.OPEN, 'z', BoundType.CLOSED, -100);
+ fail("Not expected to get here");
+ } catch (IllegalArgumentException e) {
+ // Do nothing
+ }
+ Endpoint<Character> leftEndpoint = new Endpoint<Character>(
+ 'a',
+ BoundType.CLOSED);
+ Endpoint<Character> rightEndpoint = new Endpoint<Character>(
+ 'z',
+ BoundType.OPEN);
+ try {
+ Ranges.characterRange(leftEndpoint, rightEndpoint, -100);
+ fail("Not expected to get here");
+ } catch (IllegalArgumentException e) {
+ // Do nothing
+ }
+ }
+
+ @Test
+ public void testDefaultStep() {
+ assertEquals("Invalid default step", Integer.valueOf(-1),
+ CharacterRange.DEFAULT_STEP.evaluate('c', 'a'));
+ assertEquals("Invalid default step", Integer.valueOf(1),
+ CharacterRange.DEFAULT_STEP.evaluate('a', 'c'));
+ }
+
+}
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Added: commons/proper/functor/branches/generators-FUNCTOR-14/src/test/java/org/apache/commons/functor/generator/range/TestDoubleRange.java
URL: http://svn.apache.org/viewvc/commons/proper/functor/branches/generators-FUNCTOR-14/src/test/java/org/apache/commons/functor/generator/range/TestDoubleRange.java?rev=1385335&view=auto
==============================================================================
--- commons/proper/functor/branches/generators-FUNCTOR-14/src/test/java/org/apache/commons/functor/generator/range/TestDoubleRange.java (added)
+++ commons/proper/functor/branches/generators-FUNCTOR-14/src/test/java/org/apache/commons/functor/generator/range/TestDoubleRange.java Sun Sep 16 18:08:31 2012
@@ -0,0 +1,787 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.commons.functor.generator.range;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
+
+import org.apache.commons.functor.BaseFunctorTest;
+import org.apache.commons.functor.UnaryFunction;
+import org.apache.commons.functor.UnaryProcedure;
+import org.apache.commons.functor.generator.Generator;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+/**
+ * Tests for double range.
+ *
+ * @since 1.0
+ * @version $Revision: $ $Date: $
+ */
+public class TestDoubleRange extends BaseFunctorTest {
+
+ // A base range with all longs between -6 and 6
+ private final List<Double> fullRange = Collections.unmodifiableList(Arrays
+ .asList(-6.0, -5.0, -4.0, -3.0, -2.0, -1.0, 0.0, 1.0, 2.0, 3.0, 4.0,
+ 5.0, 6.0));
+
+ // Attributes
+ // ------------------------------------------------------------------------
+ private DoubleRange ascDoubleRange = null;
+ private DoubleRange descDoubleRange = null;
+ private Collection<Double> expectedAsc = null;
+ private Collection<Double> expectedDesc = null;
+
+ // Test set up
+ // ------------------------------------------------------------------------
+ @Before
+ public void setUp() {
+ ascDoubleRange = Ranges.doubleRange(0.0d, 10.0d);
+ descDoubleRange = Ranges.doubleRange(10.0d, 0.0d);
+ expectedAsc = Arrays.asList(0.0d, 1.0d, 2.0d, 3.0d, 4.0d, 5.0d, 6.0d,
+ 7.0d, 8.0d, 9.0d);
+ expectedDesc = Arrays.asList(10.0d, 9.0d, 8.0d, 7.0d, 6.0d, 5.0d, 4.0d,
+ 3.0d, 2.0d, 1.0d);
+ }
+
+ @After
+ public void tearDown() {
+ ascDoubleRange = null;
+ descDoubleRange = null;
+ }
+
+ @Override
+ protected Object makeFunctor()
+ throws Exception {
+ return Ranges.doubleRange(10, 20);
+ }
+
+ // Generator tests
+ // ---------------------------------------------------------------
+
+ @Test
+ public void testGenerateListExample() {
+ // generates a collection of Doubles from 0 (inclusive) to 10
+ // (exclusive)
+ {
+ List<? super Double> list = (List<? super Double>) (Ranges.doubleRange(
+ 0,
+ 10)
+ .to(new ArrayList<Double>()));
+ for (int i = 0; i < 10; i++) {
+ assertEquals(new Double(i), list.get(i));
+ }
+ }
+
+ // generates a collection of Doubles from 10 (inclusive) to 0
+ // (exclusive)
+ {
+ List<? super Double> list = (List<? super Double>) (Ranges.doubleRange(
+ 10,
+ 0)
+ .to(new ArrayList<Double>()));
+ for (int i = 10; i > 0; i--) {
+ assertEquals(new Double(i), list.get(10 - i));
+ }
+ }
+ }
+
+ @Test
+ public void testStepChecking() {
+ {
+ Ranges.doubleRange(2, 2, 0); // step of 0 is ok when range is empty
+ }
+ {
+ Ranges.doubleRange(2, 2, 1); // positive step is ok when range is
+ // empty
+ }
+ {
+ Ranges.doubleRange(2, 2, -1); // negative step is ok when range is
+ // empty
+ }
+ {
+ Ranges.doubleRange(0, 1, 10); // big steps are ok
+ }
+ {
+ Ranges.doubleRange(1, 0, -10); // big steps are ok
+ }
+ try {
+ Ranges.doubleRange(0, 1, 0);
+ fail("Expected IllegalArgumentException");
+ } catch (IllegalArgumentException e) {
+ // expected
+ }
+ try {
+ Ranges.doubleRange(0, 1, -1);
+ fail("Expected IllegalArgumentException");
+ } catch (IllegalArgumentException e) {
+ // expected
+ }
+ try {
+ Ranges.doubleRange(0, -1, 1);
+ fail("Expected IllegalArgumentException");
+ } catch (IllegalArgumentException e) {
+ // expected
+ }
+ }
+
+ @Test
+ public void testObjectConstructor() {
+ DoubleRange range = Ranges.doubleRange(new Double(0),
+ new Double(5));
+ assertEquals("[0.0, 1.0, 2.0, 3.0, 4.0]", range.toCollection()
+ .toString());
+ range = Ranges.doubleRange(new Double(0), new Double(5), new Double(1));
+ assertEquals("[0.0, 1.0, 2.0, 3.0, 4.0]", range.toCollection()
+ .toString());
+ }
+
+ @Test
+ public void testReverseStep() {
+ DoubleRange range = Ranges.doubleRange(10, 0, -2);
+ assertEquals("[10.0, 8.0, 6.0, 4.0, 2.0]", range.toCollection()
+ .toString());
+ assertEquals("[10.0, 8.0, 6.0, 4.0, 2.0]", range.toCollection()
+ .toString());
+ }
+
+ @Test
+ public void testStep() {
+ DoubleRange range = Ranges.doubleRange(0, 10, 2);
+ assertEquals("[0.0, 2.0, 4.0, 6.0, 8.0]", range.toCollection()
+ .toString());
+ assertEquals("[0.0, 2.0, 4.0, 6.0, 8.0]", range.toCollection()
+ .toString());
+ }
+
+ @Test
+ public void testForwardRange() {
+ DoubleRange range = Ranges.doubleRange(0, 5);
+ assertEquals("[0.0, 1.0, 2.0, 3.0, 4.0]", range.toCollection()
+ .toString());
+ assertEquals("[0.0, 1.0, 2.0, 3.0, 4.0]", range.toCollection()
+ .toString());
+ }
+
+ @Test
+ public void testReverseRange() {
+ DoubleRange range = Ranges.doubleRange(5, 0);
+ assertEquals("[5.0, 4.0, 3.0, 2.0, 1.0]", range.toCollection()
+ .toString());
+ assertEquals("[5.0, 4.0, 3.0, 2.0, 1.0]", range.toCollection()
+ .toString());
+ }
+
+ // @Test
+ // public void testEdgeCase() {
+ // DoubleRange range = Ranges.doubleRange(Double.MAX_VALUE - 3.0d,
+ // Double.MAX_VALUE);
+ // assertEquals("[9223372036854775804, 9223372036854775805, 9223372036854775806]",
+ // range.toCollection().toString());
+ // assertEquals("[9223372036854775804, 9223372036854775805, 9223372036854775806]",
+ // range.toCollection().toString());
+ // }
+
+ @Test
+ public void testBoundaries() {
+ DoubleRange range = Ranges.doubleRange(0.0d, 10.0d);
+ assertEquals(new Endpoint<Comparable<?>>(0.0d, BoundType.CLOSED),
+ range.getLeftEndpoint());
+ assertEquals(new Endpoint<Comparable<?>>(10.0d, BoundType.OPEN),
+ range.getRightEndpoint());
+ }
+
+ @Test
+ public void testClosedClosedAscending() {
+ // [-5.0d, 5.0d], 3.0d = -5.0d, -2.0d, 1.0d, 4.0d
+ DoubleRange range = Ranges.doubleRange(-5.0d, BoundType.CLOSED, 5.0d,
+ BoundType.CLOSED, 3.0d);
+ // [-5.0d, 5.0d], 3.0d = -5.0d, -2.0d, 1.0d, 4.0d
+ List<Double> expected = Arrays.asList(-5.0d, -2.0d, 1.0d, 4.0d);
+ Collection<Double> elements = range.toCollection();
+ assertEquals(expected, elements);
+ }
+
+ @Test
+ public void testOpenClosedAscending() {
+ // (-5.0d, 5.0d], 3.0d = -2.0d, 1.0d, 4.0d
+ DoubleRange range = Ranges.doubleRange(-5.0d, BoundType.OPEN, 5.0d,
+ BoundType.CLOSED, 3.0d);
+ // (-5.0d, 5.0d], 3.0d = -2.0d, 1.0d, 4.0d
+ List<Double> expected = Arrays.asList(-2.0d, 1.0d, 4.0d);
+ Collection<Double> elements = range.toCollection();
+ assertEquals(expected, elements);
+ }
+
+ @Test
+ public void testClosedOpenAscending() {
+ // [-5.0d, 5.0d), 3.0d = -5.0d, -2.0d, 1.0d, 4.0d
+ DoubleRange range = Ranges.doubleRange(-5.0d, BoundType.CLOSED, 5.0d,
+ BoundType.OPEN, 3.0d);
+ // (-5.0d, 5.0d], 3.0d = -5.0d, -2.0d, 1.0d, 4.0d
+ List<Double> expected = Arrays.asList(-5.0d, -2.0d, 1.0d, 4.0d);
+ Collection<Double> elements = range.toCollection();
+ assertEquals(expected, elements);
+ }
+
+ @Test
+ public void testOpenOpenAscending() {
+ // (-5.0d, 5.0d), 3.0d = -2.0d, 1.0d, 4.0d
+ DoubleRange range = Ranges.doubleRange(-5.0d, BoundType.OPEN, 5.0d,
+ BoundType.OPEN, 3.0d);
+ // (-5.0d, 5.0d), 3.0d = -2.0d, 1.0d, 4.0d
+ List<Double> expected = Arrays.asList(-2.0d, 1.0d, 4.0d);
+ Collection<Double> elements = range.toCollection();
+ assertEquals(expected, elements);
+ }
+
+ @Test
+ public void testSingleStepAscending() {
+ // (-2.0d, 2.0d], 1.0d = -1.0d, 0.0d, 1.0d, 2.0d
+ DoubleRange range = Ranges.doubleRange(-2.0d, BoundType.OPEN, 2.0d,
+ BoundType.CLOSED, 1.0d);
+ // (-2.0d, 2.0d], 1.0d = -1.0d, 0.0d, 1.0d, 2.0d
+ List<Double> expected = Arrays.asList(-1.0d, 0.0d, 1.0d, 2.0d);
+ Collection<Double> elements = range.toCollection();
+ assertEquals(expected, elements);
+ }
+
+ @Test
+ public void testClosedClosedDescending() {
+ // [5.0d, -5.0d], -3.0d = 5.0d, 2.0d, -1.0d, -4.0d
+ DoubleRange range = Ranges.doubleRange(5.0d, BoundType.CLOSED, -5.0d,
+ BoundType.CLOSED, -3.0d);
+ // [5.0d, -5.0d], -3.0d = 5.0d, 2.0d, -1.0d, -4.0d
+ List<Double> expected = Arrays.asList(5.0d, 2.0d, -1.0d, -4.0d);
+ Collection<Double> elements = range.toCollection();
+ assertEquals(expected, elements);
+ }
+
+ @Test
+ public void testOpenClosedDescending() {
+ // (5.0d, -5.0d], -3.0d = 2.0d, -1.0d, -4.0d
+ DoubleRange range = Ranges.doubleRange(5.0d, BoundType.OPEN, -5.0d,
+ BoundType.CLOSED, -3.0d);
+ // (5.0d, -5.0d], -3.0d = 2.0d, -1.0d, -4.0d
+ List<Double> expected = Arrays.asList(2.0d, -1.0d, -4.0d);
+ Collection<Double> elements = range.toCollection();
+ assertEquals(expected, elements);
+ }
+
+ @Test
+ public void testClosedOpenDescending() {
+ // [5.0d, -5.0d), -3.0d = 5.0d, 2.0d, -1.0d, -4.0d
+ DoubleRange range = Ranges.doubleRange(5.0d, BoundType.CLOSED, -5.0d,
+ BoundType.OPEN, -3.0d);
+ // [5.0d, -5.0d), -3.0d = 5.0d, 2.0d, -1.0d, -4.0d
+ List<Double> expected = Arrays.asList(5.0d, 2.0d, -1.0d, -4.0d);
+ Collection<Double> elements = range.toCollection();
+ assertEquals(expected, elements);
+ }
+
+ @Test
+ public void testOpenOpenDescending() {
+ // (5.0d, -5.0d), -3.0d = 2.0d, -1.0d, -4.0d
+ DoubleRange range = Ranges.doubleRange(5.0d, BoundType.OPEN, -5.0d,
+ BoundType.OPEN, -3.0d);
+ // (5.0d, -5.0d), -3.0d = 2.0d, -1.0d, -4.0d
+ List<Double> expected = Arrays.asList(2.0d, -1.0d, -4.0d);
+ Collection<Double> elements = range.toCollection();
+ assertEquals(expected, elements);
+ }
+
+ @Test
+ public void testSingleStepDescending() {
+ // [2.0d, -2.0d), -1.0d = 2.0d, 1.0d, 0.0d, -1.0d
+ DoubleRange range = Ranges.doubleRange(2.0d, BoundType.CLOSED, -2.0d,
+ BoundType.OPEN, -1.0d);
+ // [2.0d, -2.0d), -1.0d = 2.0d, 1.0d, 0.0d, -1.0d
+ List<Double> expected = Arrays.asList(2.0d, 1.0d, 0.0d, -1.0d);
+ Collection<Double> elements = range.toCollection();
+ assertEquals(expected, elements);
+ }
+
+ @Test
+ public void testAscending() {
+ final List<Double> list = new ArrayList<Double>();
+ ascDoubleRange.run(new UnaryProcedure<Double>() {
+
+ public void run(Double obj) {
+ list.add(obj);
+ }
+ });
+ assertTrue(expectedAsc.containsAll(list));
+ }
+
+ @Test
+ public void testDescending() {
+ final List<Double> list = new ArrayList<Double>();
+ descDoubleRange.run(new UnaryProcedure<Double>() {
+
+ public void run(Double obj) {
+ list.add(obj);
+ }
+ });
+ assertTrue(expectedDesc.containsAll(list));
+ }
+
+ @Test
+ public void testToCollection() {
+ Collection<Double> ascCol = ascDoubleRange.toCollection();
+ assertEquals("Different collections", expectedAsc, ascCol);
+ Collection<Double> descCol = descDoubleRange.toCollection();
+ assertEquals("Different collections", expectedDesc, descCol);
+ }
+
+ @Test
+ public void testTransformedGenerator() {
+ double expected = 45.0d;
+ double total = ascDoubleRange
+ .to(new UnaryFunction<Generator<? extends Double>, Double>() {
+
+ public Double evaluate(Generator<? extends Double> obj) {
+ double total = 0.0d;
+ for (Object element : obj.toCollection()) {
+ total += (Double) element;
+ }
+ return total;
+ }
+ });
+ assertTrue(expected == total);
+ expected = 55.0d;
+ total = descDoubleRange
+ .to(new UnaryFunction<Generator<? extends Double>, Double>() {
+
+ public Double evaluate(Generator<? extends Double> obj) {
+ double total = 0.0d;
+ for (Object element : obj.toCollection()) {
+ total += (Double) element;
+ }
+ return total;
+ }
+ });
+ assertTrue(expected == total);
+ }
+
+ // Range tests
+ // ---------------------------------------------------------------
+
+ @Test
+ public void testEmptyRanges() {
+ DoubleRange empty1 = Ranges.doubleRange(-2, BoundType.OPEN, -1,
+ BoundType.OPEN, 2);
+ assertTrue("The range was expected to be empty.", empty1.isEmpty());
+ DoubleRange empty2 = Ranges.doubleRange(2, BoundType.OPEN, 0,
+ BoundType.OPEN, -2);
+ assertTrue("The range was expected to be empty.", empty2.isEmpty());
+ DoubleRange empty3 = Ranges.doubleRange(0, BoundType.OPEN, 1,
+ BoundType.CLOSED, 2);
+ assertTrue("The range was expected to be empty.", empty3.isEmpty());
+ DoubleRange empty4 = Ranges.doubleRange(-3, BoundType.OPEN, -3,
+ BoundType.OPEN, 1);
+ assertTrue("The range was expected to be empty.", empty4.isEmpty());
+ DoubleRange empty5 = Ranges.doubleRange(-3, BoundType.CLOSED, -3,
+ BoundType.OPEN, 1);
+ assertTrue("The range was expected to be empty.", empty5.isEmpty());
+ DoubleRange empty6 = Ranges.doubleRange(1, BoundType.OPEN, 0,
+ BoundType.CLOSED, -2);
+ assertTrue("The range was expected to be empty.", empty6.isEmpty());
+ DoubleRange notEmpty1 = Ranges.doubleRange(-3, BoundType.CLOSED, -3,
+ BoundType.CLOSED, 1);
+ assertFalse("The range was not expected to be empty.",
+ notEmpty1.isEmpty());
+ DoubleRange notEmpty2 = Ranges.doubleRange(-3, BoundType.OPEN, -2,
+ BoundType.CLOSED, 1);
+ assertFalse("The range was not expected to be empty.",
+ notEmpty2.isEmpty());
+ DoubleRange notEmpty3 = Ranges.doubleRange(2, BoundType.OPEN, 1,
+ BoundType.CLOSED, -1);
+ assertFalse("The range was not expected to be empty.",
+ notEmpty3.isEmpty());
+ DoubleRange notEmpty4 = Ranges.doubleRange(2, BoundType.CLOSED, 1,
+ BoundType.OPEN, -1);
+ assertFalse("The range was not expected to be empty.",
+ notEmpty4.isEmpty());
+ DoubleRange notEmpty5 = Ranges.doubleRange(1, BoundType.CLOSED, 2,
+ BoundType.OPEN, 1);
+ assertFalse("The range was not expected to be empty.",
+ notEmpty5.isEmpty());
+ }
+
+ @Test
+ public void testClosedClosedAscendingContains() {
+ // [-5, 5], 3 = -5, -2, 1, 4
+ DoubleRange range = Ranges.doubleRange(-5, BoundType.CLOSED, 5,
+ BoundType.CLOSED, 3);
+ // [-5, 5], 3 = -5, -2, 1, 4
+ List<Double> arr = Arrays.asList(-5.0, -2.0, 1.0, 4.0);
+ for (Double element : arr) {
+ assertTrue("Expected element [" + element +
+ "] is missing in range [" + range + "]",
+ range.contains(element));
+ }
+ List<Double> elementsNotPresent = new ArrayList<Double>(fullRange);
+ elementsNotPresent.removeAll(arr);
+ for (Double element : elementsNotPresent) {
+ assertFalse("Unexpected element [" + element +
+ "] is present in range [" + range + "]",
+ range.contains(element));
+ }
+ }
+
+ @Test
+ public void testOpenClosedAscendingContains() {
+ // (-5, 5], 3 = -2, 1, 4
+ DoubleRange range = Ranges.doubleRange(-5, BoundType.OPEN, 5,
+ BoundType.CLOSED, 3);
+ // (-5, 5], 3 = -2, 1, 4
+ List<Double> arr = Arrays.asList(-2.0, 1.0, 4.0);
+ for (Double element : arr) {
+ assertTrue("Expected element [" + element +
+ "] is missing in range [" + range + "]",
+ range.contains(element));
+ }
+ List<Double> elementsNotPresent = new ArrayList<Double>(fullRange);
+ elementsNotPresent.removeAll(arr);
+ for (Double element : elementsNotPresent) {
+ assertFalse("Unexpected element [" + element +
+ "] is present in range [" + range + "]",
+ range.contains(element));
+ }
+ }
+
+ @Test
+ public void testClosedOpenAscendingContains() {
+ // [-5, 5), 3 = -5, -2, 1, 4
+ DoubleRange range = Ranges.doubleRange(-5, BoundType.CLOSED, 5,
+ BoundType.OPEN, 3);
+ // (-5, 5], 3 = -5, -2, 1, 4
+ List<Double> arr = Arrays.asList(-5.0, -2.0, 1.0, 4.0);
+ for (Double element : arr) {
+ assertTrue("Expected element [" + element +
+ "] is missing in range [" + range + "]",
+ range.contains(element));
+ }
+ List<Double> elementsNotPresent = new ArrayList<Double>(fullRange);
+ elementsNotPresent.removeAll(arr);
+ for (Double element : elementsNotPresent) {
+ assertFalse("Unexpected element [" + element +
+ "] is present in range [" + range + "]",
+ range.contains(element));
+ }
+ }
+
+ @Test
+ public void testOpenOpenAscendingContains() {
+ // (-5, 5), 3 = -2, 1, 4
+ DoubleRange range = Ranges.doubleRange(-5, BoundType.OPEN, 5,
+ BoundType.OPEN, 3);
+ // (-5, 5), 3 = -2, 1, 4
+ List<Double> arr = Arrays.asList(-2.0, 1.0, 4.0);
+ for (Double element : arr) {
+ assertTrue("Expected element [" + element +
+ "] is missing in range [" + range + "]",
+ range.contains(element));
+ }
+ List<Double> elementsNotPresent = new ArrayList<Double>(fullRange);
+ elementsNotPresent.removeAll(arr);
+ for (Double element : elementsNotPresent) {
+ assertFalse("Unexpected element [" + element +
+ "] is present in range [" + range + "]",
+ range.contains(element));
+ }
+ }
+
+ @Test
+ public void testContainsSingleStepAscending() {
+ // (-2, 2], 1 = -1, 0, 1, 2
+ DoubleRange ascendingRange = Ranges.doubleRange(-2, BoundType.OPEN, 2,
+ BoundType.CLOSED, 1);
+ // (-2, 2], 1 = -1, 0, 1, 2
+ List<Double> arr = Arrays.asList(-1.0, 0.0, 1.0, 2.0);
+ for (Double element : arr) {
+ assertTrue("Expected element [" + element +
+ "] is missing in range [" + ascendingRange + "]",
+ ascendingRange.contains(element));
+ }
+ List<Double> elementsNotPresent = new ArrayList<Double>(fullRange);
+ elementsNotPresent.removeAll(arr);
+ for (Double element : elementsNotPresent) {
+ assertFalse("Unexpected element [" + element +
+ "] is present in range [" + ascendingRange +
+ "]",
+ ascendingRange.contains(element));
+ }
+ }
+
+ @Test
+ public void testClosedClosedDescendingContains() {
+ // [5, -5], -3 = 5, 2, -1, -4
+ DoubleRange range = Ranges.doubleRange(5, BoundType.CLOSED, -5,
+ BoundType.CLOSED, -3);
+ // [5, -5], -3 = 5, 2, -1, -4
+ List<Double> arr = Arrays.asList(5.0, 2.0, -1.0, -4.0);
+ for (Double element : arr) {
+ assertTrue("Expected element [" + element +
+ "] is missing in range [" + range + "]",
+ range.contains(element));
+ }
+ List<Double> elementsNotPresent = new ArrayList<Double>(fullRange);
+ elementsNotPresent.removeAll(arr);
+ for (Double element : elementsNotPresent) {
+ assertFalse("Unexpected element [" + element +
+ "] is present in range [" + range + "]",
+ range.contains(element));
+ }
+ }
+
+ @Test
+ public void testOpenClosedDescendingContains() {
+ // (5, -5], -3 = 2, -1, -4
+ DoubleRange range = Ranges.doubleRange(5, BoundType.OPEN, -5,
+ BoundType.CLOSED, -3);
+ // (5, -5], -3 = 2, -1, -4
+ List<Double> arr = Arrays.asList(2.0, -1.0, -4.0);
+ for (Double element : arr) {
+ assertTrue("Expected element [" + element +
+ "] is missing in range [" + range + "]",
+ range.contains(element));
+ }
+ List<Double> elementsNotPresent = new ArrayList<Double>(fullRange);
+ elementsNotPresent.removeAll(arr);
+ for (Double element : elementsNotPresent) {
+ assertFalse("Unexpected element [" + element +
+ "] is present in range [" + range + "]",
+ range.contains(element));
+ }
+ }
+
+ @Test
+ public void testClosedOpenDescendingContains() {
+ // [5, -5), -3 = 5, 2, -1, -4
+ DoubleRange range = Ranges.doubleRange(5, BoundType.CLOSED, -5,
+ BoundType.OPEN, -3);
+ // [5, -5), -3 = 5, 2, -1, -4
+ List<Double> arr = Arrays.asList(5.0, 2.0, -1.0, -4.0);
+ for (Double element : arr) {
+ assertTrue("Expected element [" + element +
+ "] is missing in range [" + range + "]",
+ range.contains(element));
+ }
+ List<Double> elementsNotPresent = new ArrayList<Double>(fullRange);
+ elementsNotPresent.removeAll(arr);
+ for (Double element : elementsNotPresent) {
+ assertFalse("Unexpected element [" + element +
+ "] is present in range [" + range + "]",
+ range.contains(element));
+ }
+ }
+
+ @Test
+ public void testOpenOpenDescendingContains() {
+ // (5, -5), -3 = 2, -1, -4
+ DoubleRange range = Ranges.doubleRange(5, BoundType.OPEN, -5,
+ BoundType.OPEN, -3);
+ // (5, -5), -3 = 2, -1, -4
+ List<Double> arr = Arrays.asList(2.0, -1.0, -4.0);
+ for (Double element : arr) {
+ assertTrue("Expected element [" + element +
+ "] is missing in range [" + range + "]",
+ range.contains(element));
+ }
+ List<Double> elementsNotPresent = new ArrayList<Double>(fullRange);
+ elementsNotPresent.removeAll(arr);
+ for (Double element : elementsNotPresent) {
+ assertFalse("Unexpected element [" + element +
+ "] is present in range [" + range + "]",
+ range.contains(element));
+ }
+ }
+
+ @Test
+ public void testContainsSingleStepDescending() {
+ // [2, -2), -1 = 2, 1, 0, -1
+ DoubleRange descendingRange = Ranges.doubleRange(2, BoundType.CLOSED, -2,
+ BoundType.OPEN, -1);
+ // [2, -2), -1 = 2, 1, 0, -1
+ List<Double> arr = Arrays.asList(2.0, 1.0, 0.0, -1.0);
+ for (Double element : arr) {
+ assertTrue("Expected element [" + element +
+ "] is missing in range [" + descendingRange +
+ "]",
+ descendingRange.contains(element));
+ }
+ List<Double> elementsNotPresent = new ArrayList<Double>(fullRange);
+ elementsNotPresent.removeAll(arr);
+ for (Double element : elementsNotPresent) {
+ assertFalse("Unexpected element [" + element +
+ "] is present in range [" + descendingRange +
+ "]",
+ descendingRange.contains(element));
+ }
+ }
+
+ @Test
+ public void testContainsNullOrEmpty() {
+ DoubleRange range = Ranges.doubleRange(-2, BoundType.OPEN, 2,
+ BoundType.CLOSED, 1);
+ assertFalse(range.contains(null));
+ }
+
+ @SuppressWarnings("unchecked")
+ @Test
+ public void testContainsAll() {
+ // (-2, 2], 1 = -1, 0, 1, 2
+ DoubleRange range = Ranges.doubleRange(-2, BoundType.OPEN, 2,
+ BoundType.CLOSED, 1);
+ List<Double> list = Arrays.asList(-1.0, 0.0, 1.0, 2.0);
+ assertTrue("Range [" + range +
+ "] was expected to contain all elements from list [" + list +
+ "]", range.containsAll(list));
+ List<Double> listWithExtraElements = Arrays.asList(2.0, -1.0, 0.0, 1.0,
+ 2.0, 3.0);
+ assertFalse("Range [" + range + "] has more elements than expected",
+ range.containsAll(listWithExtraElements));
+ assertFalse(range.containsAll(null));
+ assertFalse(range.containsAll(Collections.EMPTY_LIST));
+ }
+
+ @Test
+ public void testEquals()
+ throws Exception {
+ // equals basic properties
+ DoubleRange range = Ranges.doubleRange(-2, BoundType.CLOSED, 2,
+ BoundType.OPEN, 1);
+ assertEquals("equals must be reflexive", range, range);
+ assertEquals("hashCode must be reflexive", range.hashCode(),
+ range.hashCode());
+ assertTrue(!range.equals(null)); // should be able to compare to null
+
+ Object range2 = Ranges.doubleRange(-2, BoundType.CLOSED, 2,
+ BoundType.OPEN, 1);
+ if (range.equals(range2)) {
+ assertEquals("equals implies hash equals", range.hashCode(),
+ range2.hashCode());
+ assertEquals("equals must be symmetric", range2, range);
+ } else {
+ assertTrue("equals must be symmetric", !range2.equals(range));
+ }
+
+ // Changing attributes
+ Object range3 = Ranges.doubleRange(-1, BoundType.CLOSED, 2,
+ BoundType.OPEN, 1);
+ assertFalse("Invalid equals after changing attributes",
+ range.equals(range3));
+
+ Object range4 = Ranges.doubleRange(-2, BoundType.OPEN, 2, BoundType.OPEN,
+ 1);
+ assertFalse("Invalid equals after changing attributes",
+ range.equals(range4));
+
+ Object range5 = Ranges.doubleRange(-2, BoundType.CLOSED, 1,
+ BoundType.OPEN, 1);
+ assertFalse("Invalid equals after changing attributes",
+ range.equals(range5));
+
+ Object range6 = Ranges.doubleRange(-2, BoundType.CLOSED, 2,
+ BoundType.CLOSED, 1);
+ assertFalse("Invalid equals after changing attributes",
+ range.equals(range6));
+
+ Object range7 = Ranges.doubleRange(-2, BoundType.CLOSED, 2,
+ BoundType.OPEN, 2);
+ assertFalse("Invalid equals after changing attributes",
+ range.equals(range7));
+
+ // Using different constructors
+ DoubleRange range8 = Ranges.doubleRange(Long.valueOf(-2), Long.valueOf(2),
+ Long.valueOf(1));
+ assertEquals("Invalid equals using different constructor", range,
+ range8);
+
+ DoubleRange range9 = Ranges.doubleRange(Long.valueOf(-2), Long.valueOf(2));
+ assertEquals("Invalid equals using different constructor", range,
+ range9);
+
+ Endpoint<Double> leftEndpoint = new Endpoint<Double>(-2.0d,
+ BoundType.CLOSED);
+ Endpoint<Double> rightEndpoint = new Endpoint<Double>(2.0d,
+ BoundType.OPEN);
+ DoubleRange range10 = Ranges.doubleRange(leftEndpoint, rightEndpoint, 1.0d);
+ assertEquals("Invalid equals using different constructor", range,
+ range10);
+ }
+
+ @Test
+ public void testToString() {
+ DoubleRange range = Ranges.doubleRange(-2, BoundType.OPEN, 2,
+ BoundType.CLOSED, 1);
+ assertEquals("Wrong string value", "DoubleRange<(-2.0, 2.0], 1.0>",
+ range.toString());
+ }
+
+ @Test
+ public void testConstructorUsingSameEndpoint() {
+ Endpoint<Double> uniqueEndpoint = new Endpoint<Double>(10.0d,
+ BoundType.CLOSED);
+ try {
+ Ranges.doubleRange(uniqueEndpoint, uniqueEndpoint, 1.0d);
+ } catch (IllegalArgumentException e) {
+ fail("Not expected to get here");
+ }
+ }
+
+ @Test
+ public void testInvalidRange() {
+ try {
+ Ranges.doubleRange(10.0d, BoundType.OPEN, -5.0d, BoundType.CLOSED,
+ 10.0d);
+ fail("Not expected to get here");
+ } catch (IllegalArgumentException e) {
+ // Do nothing
+ }
+ Endpoint<Double> leftEndpoint = new Endpoint<Double>(10.0d,
+ BoundType.CLOSED);
+ Endpoint<Double> rightEndpoint = new Endpoint<Double>(-5.0d,
+ BoundType.OPEN);
+ try {
+ Ranges.doubleRange(leftEndpoint, rightEndpoint, 1.0f);
+ fail("Not expected to get here");
+ } catch (IllegalArgumentException e) {
+ // Do nothing
+ }
+ }
+
+ @Test
+ public void testDefaultStep() {
+ assertEquals("Invalid default step", Double.valueOf(-1.0d),
+ DoubleRange.DEFAULT_STEP.evaluate(10.0d, 1.0d));
+ assertEquals("Invalid default step", Double.valueOf(1.0d),
+ DoubleRange.DEFAULT_STEP.evaluate(1.0d, 10.0d));
+ }
+
+}
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Added: commons/proper/functor/branches/generators-FUNCTOR-14/src/test/java/org/apache/commons/functor/generator/range/TestEndpoint.java
URL: http://svn.apache.org/viewvc/commons/proper/functor/branches/generators-FUNCTOR-14/src/test/java/org/apache/commons/functor/generator/range/TestEndpoint.java?rev=1385335&view=auto
==============================================================================
--- commons/proper/functor/branches/generators-FUNCTOR-14/src/test/java/org/apache/commons/functor/generator/range/TestEndpoint.java (added)
+++ commons/proper/functor/branches/generators-FUNCTOR-14/src/test/java/org/apache/commons/functor/generator/range/TestEndpoint.java Sun Sep 16 18:08:31 2012
@@ -0,0 +1,82 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.commons.functor.generator.range;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+import org.junit.Test;
+
+/**
+ * Tests for endpoint.
+ *
+ * @since 1.0
+ * @version $Revision: $ $Date: $
+ */
+public class TestEndpoint {
+
+ private final Endpoint<Integer> openEndpoint = new Endpoint<Integer>(1, BoundType.OPEN);
+ private final Endpoint<Integer> closedEndpoint = new Endpoint<Integer>(2, BoundType.CLOSED);
+
+ @Test
+ public void testValue() {
+ assertEquals(Integer.valueOf(1), openEndpoint.getValue());
+ assertEquals(Integer.valueOf(2), closedEndpoint.getValue());
+ }
+
+ @Test
+ public void testBoundType() {
+ assertEquals(BoundType.OPEN, openEndpoint.getBoundType());
+ assertEquals(BoundType.CLOSED, closedEndpoint.getBoundType());
+ }
+
+ @Test
+ public void testToString() {
+ assertEquals("Endpoint<1, OPEN>", openEndpoint.toString());
+ assertEquals("Endpoint<2, CLOSED>", closedEndpoint.toString());
+ assertEquals("(1", openEndpoint.toLeftString());
+ assertEquals("[2", closedEndpoint.toLeftString());
+ assertEquals("1)", openEndpoint.toRightString());
+ assertEquals("2]", closedEndpoint.toRightString());
+ }
+
+ @Test
+ public void testEquals()
+ throws Exception {
+ // equals basic properties
+ Endpoint<Integer> endpoint = new Endpoint<Integer>(1, BoundType.OPEN);
+ assertEquals("equals must be reflexive", endpoint, endpoint);
+ assertEquals("hashCode must be reflexive", endpoint.hashCode(),
+ endpoint.hashCode());
+ assertTrue(!endpoint.equals(null)); // should be able to compare to null
+
+ Object endpoint2 = new Endpoint<Integer>(1, BoundType.OPEN);
+ if (endpoint.equals(endpoint2)) {
+ assertEquals("equals implies hash equals", endpoint.hashCode(),
+ endpoint2.hashCode());
+ assertEquals("equals must be symmetric", endpoint2, endpoint);
+ } else {
+ assertTrue("equals must be symmetric", !endpoint2.equals(endpoint));
+ }
+
+ Object differentEndpoint = new Endpoint<Integer>(1, BoundType.CLOSED);
+ assertTrue(!differentEndpoint.equals(endpoint));
+ assertTrue(differentEndpoint.hashCode() != endpoint.hashCode());
+ }
+
+}
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