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Posted to commits@commons.apache.org by er...@apache.org on 2018/05/19 15:13:34 UTC
[06/28] commons-numbers git commit: NUMBERS-51: Unit tests for
"Field".
NUMBERS-51: Unit tests for "Field".
Project: http://git-wip-us.apache.org/repos/asf/commons-numbers/repo
Commit: http://git-wip-us.apache.org/repos/asf/commons-numbers/commit/b15facf8
Tree: http://git-wip-us.apache.org/repos/asf/commons-numbers/tree/b15facf8
Diff: http://git-wip-us.apache.org/repos/asf/commons-numbers/diff/b15facf8
Branch: refs/heads/master
Commit: b15facf8a0f3fbc8c8e661f1e22ba25a3834563c
Parents: 15b7b2f
Author: Gilles Sadowski <gi...@harfang.homelinux.org>
Authored: Tue Dec 26 21:35:44 2017 +0100
Committer: Gilles Sadowski <gi...@harfang.homelinux.org>
Committed: Tue Dec 26 21:35:44 2017 +0100
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.../numbers/field/FieldParametricTest.java | 113 +++++++++++++++++++
.../commons/numbers/field/FieldTestData.java | 60 ++++++++++
.../commons/numbers/field/FieldsList.java | 70 ++++++++++++
3 files changed, 243 insertions(+)
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http://git-wip-us.apache.org/repos/asf/commons-numbers/blob/b15facf8/commons-numbers-field/src/test/java/org/apache/commons/numbers/field/FieldParametricTest.java
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diff --git a/commons-numbers-field/src/test/java/org/apache/commons/numbers/field/FieldParametricTest.java b/commons-numbers-field/src/test/java/org/apache/commons/numbers/field/FieldParametricTest.java
new file mode 100644
index 0000000..fc123b8
--- /dev/null
+++ b/commons-numbers-field/src/test/java/org/apache/commons/numbers/field/FieldParametricTest.java
@@ -0,0 +1,113 @@
+/*
+ * 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.numbers.field;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.ArrayList;
+
+import org.junit.Assert;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+import org.junit.runners.Parameterized.Parameters;
+
+/**
+ * Tests for fields.
+ */
+@RunWith(value=Parameterized.class)
+public class FieldParametricTest {
+ /** Field under test. */
+ private final Field field;
+ private final Object a;
+ private final Object b;
+ private final Object c;
+
+ /**
+ * Initializes data instance.
+ *
+ * @param data Field data to be tested.
+ */
+ public FieldParametricTest(FieldTestData data) {
+ this.field = data.getField();
+ this.a = data.getA();
+ this.b = data.getB();
+ this.c = data.getC();
+ }
+
+ @Parameters(name = "{index}: data={0}")
+ public static Iterable<FieldTestData[]> getList() {
+ return FieldsList.list();
+ }
+
+ @Test
+ public void testAdditionAssociativity() {
+ final Object r1 = field.add(field.add(a, b), c);
+ final Object r2 = field.add(a, field.add(b, c));
+ Assert.assertTrue(r1.equals(r2));
+ }
+ @Test
+ public void testAdditionCommutativity() {
+ final Object r1 = field.add(a, b);
+ final Object r2 = field.add(b, a);
+ Assert.assertTrue(r1.equals(r2));
+ }
+ @Test
+ public void testAdditiveIdentity() {
+ final Object r1 = field.add(a, field.zero());
+ final Object r2 = a;
+ Assert.assertTrue(r1.equals(r2));
+ }
+ @Test
+ public void testAdditiveInverse() {
+ final Object r1 = field.add(a, field.negate(a));
+ final Object r2 = field.zero();
+ Assert.assertTrue(r1.equals(r2));
+ }
+
+ @Test
+ public void testMultiplicationAssociativity() {
+ final Object r1 = field.multiply(field.multiply(a, b), c);
+ final Object r2 = field.multiply(a, field.multiply(b, c));
+ Assert.assertTrue(r1.equals(r2));
+ }
+ @Test
+ public void testMultiplicationCommutativity() {
+ final Object r1 = field.multiply(a, b);
+ final Object r2 = field.multiply(b, a);
+ Assert.assertTrue(r1.equals(r2));
+ }
+ @Test
+ public void testMultiplicativeIdentity() {
+ final Object r1 = field.multiply(a, field.one());
+ final Object r2 = a;
+ Assert.assertTrue(r1.equals(r2));
+ }
+ @Test
+ public void testMultiplicativeInverse() {
+ final Object r1 = field.multiply(a, field.reciprocal(a));
+ final Object r2 = field.one();
+ Assert.assertTrue(r1.equals(r2));
+ }
+
+ @Test
+ public void testDistributivity() {
+ final Object r1 = field.multiply(a, field.add(b, c));
+ final Object r2 = field.add(field.multiply(a, b), field.multiply(a, c));
+ Assert.assertTrue(r1.equals(r2));
+ }
+}
http://git-wip-us.apache.org/repos/asf/commons-numbers/blob/b15facf8/commons-numbers-field/src/test/java/org/apache/commons/numbers/field/FieldTestData.java
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diff --git a/commons-numbers-field/src/test/java/org/apache/commons/numbers/field/FieldTestData.java b/commons-numbers-field/src/test/java/org/apache/commons/numbers/field/FieldTestData.java
new file mode 100644
index 0000000..82dc1a0
--- /dev/null
+++ b/commons-numbers-field/src/test/java/org/apache/commons/numbers/field/FieldTestData.java
@@ -0,0 +1,60 @@
+/*
+ * 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.numbers.field;
+
+import java.util.Arrays;
+
+/**
+ * Data store for {@link FieldParametricTest}.
+ */
+class FieldTestData {
+ private final Field<?> field;
+ private final Object a;
+ private final Object b;
+ private final Object c;
+
+ public FieldTestData(Field<?> field,
+ Object a,
+ Object b,
+ Object c) {
+ this.field = field;
+ this.a = a;
+ this.b = b;
+ this.c = c;
+ }
+
+ public Field<?> getField() {
+ return field;
+ }
+
+ public Object getA() {
+ return a;
+ }
+
+ public Object getB() {
+ return b;
+ }
+
+ public Object getC() {
+ return c;
+ }
+
+ @Override
+ public String toString() {
+ return field.toString() + " [a=" + a + ", b=" + b + ", c=" + c + "]";
+ }
+}
http://git-wip-us.apache.org/repos/asf/commons-numbers/blob/b15facf8/commons-numbers-field/src/test/java/org/apache/commons/numbers/field/FieldsList.java
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diff --git a/commons-numbers-field/src/test/java/org/apache/commons/numbers/field/FieldsList.java b/commons-numbers-field/src/test/java/org/apache/commons/numbers/field/FieldsList.java
new file mode 100644
index 0000000..e937e0c
--- /dev/null
+++ b/commons-numbers-field/src/test/java/org/apache/commons/numbers/field/FieldsList.java
@@ -0,0 +1,70 @@
+/*
+ * 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.numbers.field;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.ArrayList;
+import java.util.Collections;
+
+import org.apache.commons.numbers.fraction.Fraction;
+
+/**
+ * List of samplers.
+ */
+public class FieldsList {
+ /** List of all fields implemented in the library. */
+ private static final List<FieldTestData[]> LIST =
+ new ArrayList<FieldTestData[]>();
+
+ static {
+ try {
+ // List of fields to test.
+ add(new FractionField(),
+ new Fraction(13, 4),
+ new Fraction(5, 29),
+ new Fraction(-279, 11));
+
+ } catch (Exception e) {
+ System.err.println("Unexpected exception while creating the list of fields: " + e);
+ e.printStackTrace(System.err);
+ throw new RuntimeException(e);
+ }
+ }
+
+ /**
+ * @param field Field.
+ * @param a Field element.
+ * @param b Field element.
+ */
+ private static <T> void add(Field<T> field,
+ T a,
+ T b,
+ T c) {
+ LIST.add(new FieldTestData[] { new FieldTestData(field, a, b, c) });
+ }
+
+ /**
+ * Subclasses that are "parametric" tests can forward the call to
+ * the "@Parameters"-annotated method to this method.
+ *
+ * @return the list of all fields.
+ */
+ public static Iterable<FieldTestData[]> list() {
+ return Collections.unmodifiableList(LIST);
+ }
+}