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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 [4/4] - 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/test/java/org/apache/commons/functor/generator/range/TestLongRange.java
URL: http://svn.apache.org/viewvc/commons/proper/functor/branches/generators-FUNCTOR-14/src/test/java/org/apache/commons/functor/generator/range/TestLongRange.java?rev=1385335&r1=1385334&r2=1385335&view=diff
==============================================================================
--- commons/proper/functor/branches/generators-FUNCTOR-14/src/test/java/org/apache/commons/functor/generator/range/TestLongRange.java (original)
+++ commons/proper/functor/branches/generators-FUNCTOR-14/src/test/java/org/apache/commons/functor/generator/range/TestLongRange.java Sun Sep 16 18:08:31 2012
@@ -17,13 +17,22 @@
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.generator.range.LongRange;
+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;
/**
@@ -31,19 +40,47 @@ import org.junit.Test;
*/
public class TestLongRange extends BaseFunctorTest {
+ // A base range with all longs between -6 and 6
+ private final List<Long> fullRange = Collections.unmodifiableList(Arrays
+ .asList(-6L, -5L, -4L, -3L, -2L, -1L, 0L, 1L, 2L, 3L, 4L, 5L, 6L));
+
+ // Attributes
+ // ------------------------------------------------------------------------
+ private LongRange ascLongRange = null;
+ private LongRange descLongRange = null;
+ private Collection<Long> expectedAsc = null;
+ private Collection<Long> expectedDesc = null;
+
+ // Test set up
+ // ------------------------------------------------------------------------
+ @Before
+ public void setUp() {
+ ascLongRange = Ranges.longRange(0L, 10L);
+ descLongRange = Ranges.longRange(10L, 0L);
+ expectedAsc = Arrays.asList(0L, 1L, 2L, 3L, 4L, 5L, 6L, 7L, 8L, 9L);
+ expectedDesc = Arrays.asList(10L, 9L, 8L, 7L, 6L, 5L, 4L, 3L, 2L, 1L);
+ }
+
+ @After
+ public void tearDown() {
+ ascLongRange = null;
+ descLongRange = null;
+ }
+
@Override
- protected Object makeFunctor() throws Exception {
- return new LongRange(10, 20);
+ protected Object makeFunctor()
+ throws Exception {
+ return Ranges.longRange(10, 20);
}
- // Tests
+ // Generator tests
// ------------------------------------------------------------------------
@Test
public void testGenerateListExample() {
// generates a collection of Integers from 0 (inclusive) to 10 (exclusive)
{
- List<? super Long> list = (List<? super Long>)(new LongRange(0,10).to(new ArrayList<Long>()));
+ List<? super Long> list = (List<? super Long>)(Ranges.longRange(0,10).to(new ArrayList<Long>()));
for (int i=0;i<10;i++) {
assertEquals(new Long(i),list.get(i));
}
@@ -51,7 +88,7 @@ public class TestLongRange extends BaseF
// generates a collection of Integers from 10 (inclusive) to 0 (exclusive)
{
- List<? super Long> list = (List<? super Long>)(new LongRange(10,0).to(new ArrayList<Long>()));
+ List<? super Long> list = (List<? super Long>)(Ranges.longRange(10,0).to(new ArrayList<Long>()));
for (int i=10;i>0;i--) {
assertEquals(new Long(i),list.get(10-i));
}
@@ -61,34 +98,34 @@ public class TestLongRange extends BaseF
@Test
public void testStepChecking() {
{
- new LongRange(2, 2, 0); // step of 0 is ok when range is empty
+ Ranges.longRange(2, 2, 0); // step of 0 is ok when range is empty
}
{
- new LongRange(2, 2, 1); // positive step is ok when range is empty
+ Ranges.longRange(2, 2, 1); // positive step is ok when range is empty
}
{
- new LongRange(2, 2, -1); // negative step is ok when range is empty
+ Ranges.longRange(2, 2, -1); // negative step is ok when range is empty
}
{
- new LongRange(0, 1, 10); // big steps are ok
+ Ranges.longRange(0, 1, 10); // big steps are ok
}
{
- new LongRange(1, 0, -10); // big steps are ok
+ Ranges.longRange(1, 0, -10); // big steps are ok
}
try {
- new LongRange(0, 1, 0);
+ Ranges.longRange(0, 1, 0);
fail("Expected IllegalArgumentException");
} catch(IllegalArgumentException e) {
// expected
}
try {
- new LongRange(0, 1, -1);
+ Ranges.longRange(0, 1, -1);
fail("Expected IllegalArgumentException");
} catch(IllegalArgumentException e) {
// expected
}
try {
- new LongRange(0, -1, 1);
+ Ranges.longRange(0, -1, 1);
fail("Expected IllegalArgumentException");
} catch(IllegalArgumentException e) {
// expected
@@ -97,59 +134,618 @@ public class TestLongRange extends BaseF
@Test
public void testObjectConstructor() {
- LongRange range = new LongRange(new Long(0), new Long(5));
+ LongRange range = Ranges.longRange(new Long(0), new Long(5));
assertEquals("[0, 1, 2, 3, 4]", range.toCollection().toString());
- range = new LongRange(new Integer(0), new Long(5), new Long(1));
+ range = Ranges.longRange(new Integer(0), new Long(5), new Long(1));
assertEquals("[0, 1, 2, 3, 4]", range.toCollection().toString());
}
@Test
public void testReverseStep() {
- LongRange range = new LongRange(10, 0, -2);
+ LongRange range = Ranges.longRange(10, 0, -2);
assertEquals("[10, 8, 6, 4, 2]", range.toCollection().toString());
assertEquals("[10, 8, 6, 4, 2]", range.toCollection().toString());
}
@Test
public void testStep() {
- LongRange range = new LongRange(0, 10, 2);
+ LongRange range = Ranges.longRange(0, 10, 2);
assertEquals("[0, 2, 4, 6, 8]", range.toCollection().toString());
assertEquals("[0, 2, 4, 6, 8]", range.toCollection().toString());
}
@Test
public void testForwardRange() {
- LongRange range = new LongRange(0, 5);
+ LongRange range = Ranges.longRange(0, 5);
assertEquals("[0, 1, 2, 3, 4]", range.toCollection().toString());
assertEquals("[0, 1, 2, 3, 4]", range.toCollection().toString());
}
@Test
public void testReverseRange() {
- LongRange range = new LongRange(5, 0);
+ LongRange range = Ranges.longRange(5, 0);
assertEquals("[5, 4, 3, 2, 1]", range.toCollection().toString());
assertEquals("[5, 4, 3, 2, 1]", range.toCollection().toString());
}
@Test
public void testEdgeCase() {
- LongRange range = new LongRange(Long.MAX_VALUE - 3L, Long.MAX_VALUE);
+ LongRange range = Ranges.longRange(Long.MAX_VALUE - 3L, Long.MAX_VALUE);
assertEquals("[9223372036854775804, 9223372036854775805, 9223372036854775806]", range.toCollection().toString());
assertEquals("[9223372036854775804, 9223372036854775805, 9223372036854775806]", range.toCollection().toString());
}
+
+ @Test
+ public void testClosedClosedAscending() {
+ // [-5L, 5L], 3L = -5L, -2L, 1L, 4L
+ LongRange range = Ranges.longRange(-5L, BoundType.CLOSED, 5L,
+ BoundType.CLOSED, 3L);
+ // [-5L, 5L], 3L = -5L, -2L, 1L, 4L
+ List<Long> expected = Arrays.asList(-5L, -2L, 1L, 4L);
+ Collection<Long> elements = range.toCollection();
+ assertEquals(expected, elements);
+ }
+
+ @Test
+ public void testOpenClosedAscending() {
+ // (-5L, 5L], 3L = -2L, 1L, 4L
+ LongRange range = Ranges.longRange(-5L, BoundType.OPEN, 5L,
+ BoundType.CLOSED, 3L);
+ // (-5L, 5L], 3L = -2L, 1L, 4L
+ List<Long> expected = Arrays.asList(-2L, 1L, 4L);
+ Collection<Long> elements = range.toCollection();
+ assertEquals(expected, elements);
+ }
+
+ @Test
+ public void testClosedOpenAscending() {
+ // [-5L, 5L), 3L = -5L, -2L, 1L, 4L
+ LongRange range = Ranges.longRange(-5L, BoundType.CLOSED, 5L,
+ BoundType.OPEN, 3L);
+ // (-5L, 5L], 3L = -5L, -2L, 1L, 4L
+ List<Long> expected = Arrays.asList(-5L, -2L, 1L, 4L);
+ Collection<Long> elements = range.toCollection();
+ assertEquals(expected, elements);
+ }
+
+ @Test
+ public void testOpenOpenAscending() {
+ // (-5L, 5L), 3L = -2L, 1L, 4L
+ LongRange range = Ranges.longRange(-5L, BoundType.OPEN, 5L,
+ BoundType.OPEN, 3L);
+ // (-5L, 5L), 3L = -2L, 1L, 4L
+ List<Long> expected = Arrays.asList(-2L, 1L, 4L);
+ Collection<Long> elements = range.toCollection();
+ assertEquals(expected, elements);
+ }
+
+ @Test
+ public void testSingleStepAscending() {
+ // (-2L, 2L], 1L = -1L, 0L, 1L, 2L
+ LongRange range = Ranges.longRange(-2L, BoundType.OPEN, 2L,
+ BoundType.CLOSED, 1L);
+ // (-2L, 2L], 1L = -1L, 0L, 1L, 2L
+ List<Long> expected = Arrays.asList(-1L, 0L, 1L, 2L);
+ Collection<Long> elements = range.toCollection();
+ assertEquals(expected, elements);
+ }
+
+ @Test
+ public void testClosedClosedDescending() {
+ // [5L, -5L], -3L = 5L, 2L, -1L, -4L
+ LongRange range = Ranges.longRange(5L, BoundType.CLOSED, -5L,
+ BoundType.CLOSED, -3L);
+ // [5L, -5L], -3L = 5L, 2L, -1L, -4L
+ List<Long> expected = Arrays.asList(5L, 2L, -1L, -4L);
+ Collection<Long> elements = range.toCollection();
+ assertEquals(expected, elements);
+ }
+
+ @Test
+ public void testOpenClosedDescending() {
+ // (5L, -5L], -3L = 2L, -1L, -4L
+ LongRange range = Ranges.longRange(5L, BoundType.OPEN, -5L,
+ BoundType.CLOSED, -3L);
+ // (5L, -5L], -3L = 2L, -1L, -4L
+ List<Long> expected = Arrays.asList(2L, -1L, -4L);
+ Collection<Long> elements = range.toCollection();
+ assertEquals(expected, elements);
+ }
+
+ @Test
+ public void testClosedOpenDescending() {
+ // [5L, -5L), -3L = 5L, 2L, -1L, -4L
+ LongRange range = Ranges.longRange(5L, BoundType.CLOSED, -5L,
+ BoundType.OPEN, -3L);
+ // [5L, -5L), -3L = 5L, 2L, -1L, -4L
+ List<Long> expected = Arrays.asList(5L, 2L, -1L, -4L);
+ Collection<Long> elements = range.toCollection();
+ assertEquals(expected, elements);
+ }
+
+ @Test
+ public void testOpenOpenDescending() {
+ // (5L, -5L), -3L = 2L, -1L, -4L
+ LongRange range = Ranges.longRange(5L, BoundType.OPEN, -5L,
+ BoundType.OPEN, -3L);
+ // (5L, -5L), -3L = 2L, -1L, -4L
+ List<Long> expected = Arrays.asList(2L, -1L, -4L);
+ Collection<Long> elements = range.toCollection();
+ assertEquals(expected, elements);
+ }
+
+ @Test
+ public void testSingleStepDescending() {
+ // [2L, -2L), -1L = 2L, 1L, 0L, -1L
+ LongRange range = Ranges.longRange(2L, BoundType.CLOSED, -2L,
+ BoundType.OPEN, -1L);
+ // [2L, -2L), -1L = 2L, 1L, 0L, -1L
+ List<Long> expected = Arrays.asList(2L, 1L, 0L, -1L);
+ Collection<Long> elements = range.toCollection();
+ assertEquals(expected, elements);
+ }
+
+ @Test
+ public void testAscending() {
+ final List<Long> list = new ArrayList<Long>();
+ ascLongRange.run(new UnaryProcedure<Long>() {
+
+ public void run(Long obj) {
+ list.add(obj);
+ }
+ });
+ assertTrue(expectedAsc.containsAll(list));
+ }
+
+ @Test
+ public void testDescending() {
+ final List<Long> list = new ArrayList<Long>();
+ descLongRange.run(new UnaryProcedure<Long>() {
+
+ public void run(Long obj) {
+ list.add(obj);
+ }
+ });
+ assertTrue(expectedDesc.containsAll(list));
+ }
+
+ @Test
+ public void testToCollection() {
+ Collection<Long> ascCol = ascLongRange.toCollection();
+ assertEquals("Different collections", expectedAsc, ascCol);
+ Collection<Long> descCol = descLongRange.toCollection();
+ assertEquals("Different collections", expectedDesc, descCol);
+ }
+
+ @Test
+ public void testTransformedGenerator() {
+ long expected = 45L;
+ long total = ascLongRange
+ .to(new UnaryFunction<Generator<? extends Long>, Long>() {
+
+ public Long evaluate(Generator<? extends Long> obj) {
+ long total = 0L;
+ for (Object element : obj.toCollection()) {
+ total += (Long) element;
+ }
+ return total;
+ }
+ });
+ assertEquals(expected, total);
+ expected = 55L;
+ total = descLongRange
+ .to(new UnaryFunction<Generator<? extends Long>, Long>() {
+
+ public Long evaluate(Generator<? extends Long> obj) {
+ long total = 0L;
+ for (Object element : obj.toCollection()) {
+ total += (Long) element;
+ }
+ return total;
+ }
+ });
+ assertEquals(expected, total);
+ }
+
+ // Range tests
+ // ------------------------------------------------------------------------
+
+ @Test
+ public void testEmptyRanges() {
+ LongRange empty1 = Ranges.longRange(-2, BoundType.OPEN, -1,
+ BoundType.OPEN, 2);
+ assertTrue("The range was expected to be empty.", empty1.isEmpty());
+ LongRange empty2 = Ranges.longRange(2, BoundType.OPEN, 0, BoundType.OPEN,
+ -2);
+ assertTrue("The range was expected to be empty.", empty2.isEmpty());
+ LongRange empty3 = Ranges.longRange(0, BoundType.OPEN, 1,
+ BoundType.CLOSED, 2);
+ assertTrue("The range was expected to be empty.", empty3.isEmpty());
+ LongRange empty4 = Ranges.longRange(-3, BoundType.OPEN, -3,
+ BoundType.OPEN, 1);
+ assertTrue("The range was expected to be empty.", empty4.isEmpty());
+ LongRange empty5 = Ranges.longRange(-3, BoundType.CLOSED, -3,
+ BoundType.OPEN, 1);
+ assertTrue("The range was expected to be empty.", empty5.isEmpty());
+ LongRange empty6 = Ranges.longRange(1, BoundType.OPEN, 0,
+ BoundType.CLOSED, -2);
+ assertTrue("The range was expected to be empty.", empty6.isEmpty());
+ LongRange notEmpty1 = Ranges.longRange(-3, BoundType.CLOSED, -3,
+ BoundType.CLOSED, 1);
+ assertFalse("The range was not expected to be empty.",
+ notEmpty1.isEmpty());
+ LongRange notEmpty2 = Ranges.longRange(-3, BoundType.OPEN, -2,
+ BoundType.CLOSED, 1);
+ assertFalse("The range was not expected to be empty.",
+ notEmpty2.isEmpty());
+ LongRange notEmpty3 = Ranges.longRange(2, BoundType.OPEN, 1,
+ BoundType.CLOSED, -1);
+ assertFalse("The range was not expected to be empty.",
+ notEmpty3.isEmpty());
+ LongRange notEmpty4 = Ranges.longRange(2, BoundType.CLOSED, 1,
+ BoundType.OPEN, -1);
+ assertFalse("The range was not expected to be empty.",
+ notEmpty4.isEmpty());
+ LongRange notEmpty5 = Ranges.longRange(1, BoundType.CLOSED, 2,
+ BoundType.OPEN, 1);
+ assertFalse("The range was not expected to be empty.",
+ notEmpty5.isEmpty());
+ }
+
+ @Test
+ public void testBoundaries() {
+ LongRange range = Ranges.longRange(0L, 10L);
+ assertEquals(new Endpoint<Comparable<?>>(0L, BoundType.CLOSED),
+ range.getLeftEndpoint());
+ assertEquals(new Endpoint<Comparable<?>>(10L, BoundType.OPEN),
+ range.getRightEndpoint());
+ }
+
+ @Test
+ public void testClosedClosedAscendingContains() {
+ // [-5, 5], 3 = -5, -2, 1, 4
+ LongRange range = Ranges.longRange(-5, BoundType.CLOSED, 5,
+ BoundType.CLOSED, 3);
+ // [-5, 5], 3 = -5, -2, 1, 4
+ List<Long> arr = Arrays.asList(-5L, -2L, 1L, 4L);
+ for (Long element : arr) {
+ assertTrue("Expected element [" + element +
+ "] is missing in range [" + range + "]",
+ range.contains(element));
+ }
+ List<Long> elementsNotPresent = new ArrayList<Long>(fullRange);
+ elementsNotPresent.removeAll(arr);
+ for (Long element : elementsNotPresent) {
+ assertFalse("Unexpected element [" + element +
+ "] is present in range [" + range + "]",
+ range.contains(element));
+ }
+ }
+
+ @Test
+ public void testOpenClosedAscendingContains() {
+ // (-5, 5], 3 = -2, 1, 4
+ LongRange range = Ranges.longRange(-5, BoundType.OPEN, 5,
+ BoundType.CLOSED, 3);
+ // (-5, 5], 3 = -2, 1, 4
+ List<Long> arr = Arrays.asList(-2L, 1L, 4L);
+ for (Long element : arr) {
+ assertTrue("Expected element [" + element +
+ "] is missing in range [" + range + "]",
+ range.contains(element));
+ }
+ List<Long> elementsNotPresent = new ArrayList<Long>(fullRange);
+ elementsNotPresent.removeAll(arr);
+ for (Long 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
+ LongRange range = Ranges.longRange(-5, BoundType.CLOSED, 5,
+ BoundType.OPEN, 3);
+ // (-5, 5], 3 = -5, -2, 1, 4
+ List<Long> arr = Arrays.asList(-5L, -2L, 1L, 4L);
+ for (Long element : arr) {
+ assertTrue("Expected element [" + element +
+ "] is missing in range [" + range + "]",
+ range.contains(element));
+ }
+ List<Long> elementsNotPresent = new ArrayList<Long>(fullRange);
+ elementsNotPresent.removeAll(arr);
+ for (Long element : elementsNotPresent) {
+ assertFalse("Unexpected element [" + element +
+ "] is present in range [" + range + "]",
+ range.contains(element));
+ }
+ }
+
+ @Test
+ public void testOpenOpenAscendingContains() {
+ // (-5, 5), 3 = -2, 1, 4
+ LongRange range = Ranges.longRange(-5, BoundType.OPEN, 5, BoundType.OPEN,
+ 3);
+ // (-5, 5), 3 = -2, 1, 4
+ List<Long> arr = Arrays.asList(-2L, 1L, 4L);
+ for (Long element : arr) {
+ assertTrue("Expected element [" + element +
+ "] is missing in range [" + range + "]",
+ range.contains(element));
+ }
+ List<Long> elementsNotPresent = new ArrayList<Long>(fullRange);
+ elementsNotPresent.removeAll(arr);
+ for (Long 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
+ LongRange ascendingRange = Ranges.longRange(-2, BoundType.OPEN, 2,
+ BoundType.CLOSED, 1);
+ // (-2, 2], 1 = -1, 0, 1, 2
+ List<Long> arr = Arrays.asList(-1L, 0L, 1L, 2L);
+ for (Long element : arr) {
+ assertTrue("Expected element [" + element +
+ "] is missing in range [" + ascendingRange + "]",
+ ascendingRange.contains(element));
+ }
+ List<Long> elementsNotPresent = new ArrayList<Long>(fullRange);
+ elementsNotPresent.removeAll(arr);
+ for (Long 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
+ LongRange range = Ranges.longRange(5, BoundType.CLOSED, -5,
+ BoundType.CLOSED, -3);
+ // [5, -5], -3 = 5, 2, -1, -4
+ List<Long> arr = Arrays.asList(5L, 2L, -1L, -4L);
+ for (Long element : arr) {
+ assertTrue("Expected element [" + element +
+ "] is missing in range [" + range + "]",
+ range.contains(element));
+ }
+ List<Long> elementsNotPresent = new ArrayList<Long>(fullRange);
+ elementsNotPresent.removeAll(arr);
+ for (Long element : elementsNotPresent) {
+ assertFalse("Unexpected element [" + element +
+ "] is present in range [" + range + "]",
+ range.contains(element));
+ }
+ }
+
+ @Test
+ public void testOpenClosedDescendingContains() {
+ // (5, -5], -3 = 2, -1, -4
+ LongRange range = Ranges.longRange(5, BoundType.OPEN, -5,
+ BoundType.CLOSED, -3);
+ // (5, -5], -3 = 2, -1, -4
+ List<Long> arr = Arrays.asList(2L, -1L, -4L);
+ for (Long element : arr) {
+ assertTrue("Expected element [" + element +
+ "] is missing in range [" + range + "]",
+ range.contains(element));
+ }
+ List<Long> elementsNotPresent = new ArrayList<Long>(fullRange);
+ elementsNotPresent.removeAll(arr);
+ for (Long 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
+ LongRange range = Ranges.longRange(5, BoundType.CLOSED, -5,
+ BoundType.OPEN, -3);
+ // [5, -5), -3 = 5, 2, -1, -4
+ List<Long> arr = Arrays.asList(5L, 2L, -1L, -4L);
+ for (Long element : arr) {
+ assertTrue("Expected element [" + element +
+ "] is missing in range [" + range + "]",
+ range.contains(element));
+ }
+ List<Long> elementsNotPresent = new ArrayList<Long>(fullRange);
+ elementsNotPresent.removeAll(arr);
+ for (Long element : elementsNotPresent) {
+ assertFalse("Unexpected element [" + element +
+ "] is present in range [" + range + "]",
+ range.contains(element));
+ }
+ }
+
+ @Test
+ public void testOpenOpenDescendingContains() {
+ // (5, -5), -3 = 2, -1, -4
+ LongRange range = Ranges.longRange(5, BoundType.OPEN, -5, BoundType.OPEN,
+ -3);
+ // (5, -5), -3 = 2, -1, -4
+ List<Long> arr = Arrays.asList(2L, -1L, -4L);
+ for (Long element : arr) {
+ assertTrue("Expected element [" + element +
+ "] is missing in range [" + range + "]",
+ range.contains(element));
+ }
+ List<Long> elementsNotPresent = new ArrayList<Long>(fullRange);
+ elementsNotPresent.removeAll(arr);
+ for (Long 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
+ LongRange descendingRange = Ranges.longRange(2, BoundType.CLOSED, -2,
+ BoundType.OPEN, -1);
+ // [2, -2), -1 = 2, 1, 0, -1
+ List<Long> arr = Arrays.asList(2L, 1L, 0L, -1L);
+ for (Long element : arr) {
+ assertTrue("Expected element [" + element +
+ "] is missing in range [" + descendingRange +
+ "]",
+ descendingRange.contains(element));
+ }
+ List<Long> elementsNotPresent = new ArrayList<Long>(fullRange);
+ elementsNotPresent.removeAll(arr);
+ for (Long element : elementsNotPresent) {
+ assertFalse("Unexpected element [" + element +
+ "] is present in range [" + descendingRange +
+ "]",
+ descendingRange.contains(element));
+ }
+ }
+
+ @Test
+ public void testContainsNullOrEmpty() {
+ LongRange range = Ranges.longRange(-2, BoundType.OPEN, 2,
+ BoundType.CLOSED, 1);
+ assertFalse(range.contains(null));
+ }
+
+ @SuppressWarnings("unchecked")
+ @Test
+ public void testContainsAll() {
+ // (-2, 2], 1 = -1, 0, 1, 2
+ LongRange range = Ranges.longRange(-2, BoundType.OPEN, 2,
+ BoundType.CLOSED, 1);
+ List<Long> list = Arrays.asList(-1L, 0L, 1L, 2L);
+ assertTrue("Range [" + range +
+ "] was expected to contain all elements from list [" + list +
+ "]", range.containsAll(list));
+ List<Long> listWithExtraElements = Arrays.asList(2L, -1L, 0L, 1L, 2L,
+ 3L);
+ 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
+ LongRange range = Ranges.longRange(-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.longRange(-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.longRange(-1, BoundType.CLOSED, 2, BoundType.OPEN,
+ 1);
+ assertFalse("Invalid equals after changing attributes",
+ range.equals(range3));
+
+ Object range4 = Ranges.longRange(-2, BoundType.OPEN, 2, BoundType.OPEN, 1);
+ assertFalse("Invalid equals after changing attributes",
+ range.equals(range4));
+
+ Object range5 = Ranges.longRange(-2, BoundType.CLOSED, 1, BoundType.OPEN,
+ 1);
+ assertFalse("Invalid equals after changing attributes",
+ range.equals(range5));
+
+ Object range6 = Ranges.longRange(-2, BoundType.CLOSED, 2,
+ BoundType.CLOSED, 1);
+ assertFalse("Invalid equals after changing attributes",
+ range.equals(range6));
+
+ Object range7 = Ranges.longRange(-2, BoundType.CLOSED, 2, BoundType.OPEN,
+ 2);
+ assertFalse("Invalid equals after changing attributes",
+ range.equals(range7));
+
+ // Using different constructors
+ LongRange range8 = Ranges.longRange(Integer.valueOf(-2), Integer.valueOf(2),
+ Integer.valueOf(1));
+ assertEquals("Invalid equals using different constructor", range,
+ range8);
+
+ LongRange range9 = Ranges.longRange(Integer.valueOf(-2),Integer.valueOf(2));
+ assertEquals("Invalid equals using different constructor", range,
+ range9);
+
+ Endpoint<Long> leftEndpoint = new Endpoint<Long>(-2L, BoundType.CLOSED);
+ Endpoint<Long> rightEndpoint = new Endpoint<Long>(2L, BoundType.OPEN);
+ LongRange range10 = Ranges.longRange(leftEndpoint, rightEndpoint, 1L);
+ assertEquals("Invalid equals using different constructor", range,
+ range10);
+ }
+
+ @Test
+ public void testToString() {
+ LongRange range = Ranges.longRange(-2, BoundType.OPEN, 2,
+ BoundType.CLOSED, 1);
+ assertEquals("Wrong string value", "LongRange<(-2, 2], 1>",
+ range.toString());
+ }
+
+ @Test
+ public void testConstructorUsingSameEndpoint() {
+ Endpoint<Long> uniqueEndpoint = new Endpoint<Long>(10L,
+ BoundType.CLOSED);
+ try {
+ Ranges.longRange(uniqueEndpoint, uniqueEndpoint, 1L);
+ } catch (IllegalArgumentException e) {
+ fail("Not expected to get here");
+ }
+ }
+
+ @Test
+ public void testInvalidRange() {
+ try {
+ Ranges.longRange(10, BoundType.OPEN, -5, BoundType.CLOSED, 10);
+ fail("Not expected to get here");
+ } catch (IllegalArgumentException e) {
+ // Do nothing
+ }
+ Endpoint<Long> leftEndpoint = new Endpoint<Long>(10L, BoundType.CLOSED);
+ Endpoint<Long> rightEndpoint = new Endpoint<Long>(-5L, BoundType.OPEN);
+ try {
+ Ranges.longRange(leftEndpoint, rightEndpoint, 1L);
+ fail("Not expected to get here");
+ } catch (IllegalArgumentException e) {
+ // Do nothing
+ }
+ }
@Test
- public void testEquals() {
- LongRange range = new LongRange(1, 5);
- assertObjectsAreEqual(range, range);
- assertObjectsAreEqual(range, new LongRange(1, 5));
- assertObjectsAreEqual(range, new LongRange(1, 5, 1));
- assertObjectsAreEqual(range, new LongRange(new Integer(1), new Long(5)));
- assertObjectsAreEqual(range, new LongRange(new Long(1), new Short((short)5), new Long(1)));
- assertObjectsAreNotEqual(range, new LongRange(2, 5));
- assertObjectsAreNotEqual(range, new LongRange(1, 6));
- assertObjectsAreNotEqual(range, new LongRange(1, 5, 2));
+ public void testDefaultStep() {
+ assertEquals("Invalid default step", Long.valueOf(-1L),
+ LongRange.DEFAULT_STEP.evaluate(10L, 1L));
+ assertEquals("Invalid default step", Long.valueOf(1L),
+ LongRange.DEFAULT_STEP.evaluate(1L, 10L));
}
}
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