summaryrefslogtreecommitdiff
path: root/src/test/java/com/amazon/carbonado/info
diff options
context:
space:
mode:
Diffstat (limited to 'src/test/java/com/amazon/carbonado/info')
-rw-r--r--src/test/java/com/amazon/carbonado/info/TestConversionComparator.java177
1 files changed, 177 insertions, 0 deletions
diff --git a/src/test/java/com/amazon/carbonado/info/TestConversionComparator.java b/src/test/java/com/amazon/carbonado/info/TestConversionComparator.java
new file mode 100644
index 0000000..a4e5614
--- /dev/null
+++ b/src/test/java/com/amazon/carbonado/info/TestConversionComparator.java
@@ -0,0 +1,177 @@
+/*
+ * Copyright 2006 Amazon Technologies, Inc. or its affiliates.
+ * Amazon, Amazon.com and Carbonado are trademarks or registered trademarks
+ * of Amazon Technologies, Inc. or its affiliates. All rights reserved.
+ *
+ * Licensed 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 com.amazon.carbonado.info;
+
+import junit.framework.TestCase;
+import junit.framework.TestSuite;
+
+/**
+ * Test cases for {@link ConversionComparator}.
+ *
+ * @author Brian S O'Neill
+ */
+public class TestConversionComparator extends TestCase {
+ private static final int BOOLEAN_CODE = 0;
+ private static final int BYTE_CODE = 1;
+ private static final int SHORT_CODE = 2;
+ private static final int CHAR_CODE = 3;
+ private static final int INT_CODE = 4;
+ private static final int FLOAT_CODE = 5;
+ private static final int LONG_CODE = 6;
+ private static final int DOUBLE_CODE = 7;
+
+ private static final Class[] PRIMITIVE_CLASSES = {
+ boolean.class, byte.class, short.class, char.class,
+ int.class, float.class, long.class, double.class
+ };
+
+ private static final Class[] BOXED_PRIMITIVE_CLASSES = {
+ Boolean.class, Byte.class, Short.class, Character.class,
+ Integer.class, Float.class, Long.class, Double.class
+ };
+
+ // States which primitive conversions are allowed.
+ private static final boolean[][] PRIMITIVE_MATRIX = {
+ // from...
+ // boolean byte short char int float long double
+ { true, false, false, false, false, false, false, false }, // to boolean
+ { false, true, false, false, false, false, false, false }, // to byte
+ { false, true, true, false, false, false, false, false }, // to short
+ { false, false, false, true, false, false, false, false }, // to char
+ { false, true, true, false, true, false, false, false }, // to int
+ { false, true, true, false, false, true, false, false }, // to float
+ { false, true, true, false, true, false, true, false }, // to long
+ { false, true, true, false, true, true, false, true }, // to double
+ };
+
+ public static void main(String[] args) {
+ junit.textui.TestRunner.run(suite());
+ }
+
+ public static TestSuite suite() {
+ return new TestSuite(TestConversionComparator.class);
+ }
+
+ public TestConversionComparator(String name) {
+ super(name);
+ }
+
+ public void test_isConversionPossible_basics() {
+ ConversionComparator cc = new ConversionComparator(Object.class);
+ assertEquals(true, cc.isConversionPossible(Object.class));
+ assertEquals(false, cc.isConversionPossible(String.class));
+ assertEquals(false, cc.isConversionPossible(boolean.class));
+ assertEquals(false, cc.isConversionPossible(Integer.class));
+ assertEquals(false, cc.isConversionPossible(int.class));
+
+ cc = new ConversionComparator(String.class);
+ assertEquals(true, cc.isConversionPossible(Object.class));
+ assertEquals(true, cc.isConversionPossible(String.class));
+ assertEquals(false, cc.isConversionPossible(boolean.class));
+ assertEquals(false, cc.isConversionPossible(Integer.class));
+ assertEquals(false, cc.isConversionPossible(int.class));
+
+ cc = new ConversionComparator(boolean.class);
+ assertEquals(true, cc.isConversionPossible(Object.class));
+ assertEquals(false, cc.isConversionPossible(String.class));
+ assertEquals(true, cc.isConversionPossible(boolean.class));
+ assertEquals(false, cc.isConversionPossible(Integer.class));
+ assertEquals(false, cc.isConversionPossible(int.class));
+
+ cc = new ConversionComparator(Integer.class);
+ assertEquals(true, cc.isConversionPossible(Object.class));
+ assertEquals(false, cc.isConversionPossible(String.class));
+ assertEquals(false, cc.isConversionPossible(boolean.class));
+ assertEquals(true, cc.isConversionPossible(Integer.class));
+ assertEquals(true, cc.isConversionPossible(int.class));
+
+ cc = new ConversionComparator(int.class);
+ assertEquals(true, cc.isConversionPossible(Object.class));
+ assertEquals(false, cc.isConversionPossible(String.class));
+ assertEquals(false, cc.isConversionPossible(boolean.class));
+ assertEquals(true, cc.isConversionPossible(Integer.class));
+ assertEquals(true, cc.isConversionPossible(int.class));
+ }
+
+ public void test_isConversionPossible_primitives() {
+ test_isConversionPossible_primitives(false, false);
+ test_isConversionPossible_primitives(false, true);
+ test_isConversionPossible_primitives(true, false);
+ test_isConversionPossible_primitives(true, true);
+ }
+
+ private void test_isConversionPossible_primitives(boolean fromBoxed, boolean toBoxed) {
+ for (int fromCode = BOOLEAN_CODE; fromCode <= DOUBLE_CODE; fromCode++) {
+ ConversionComparator cc = new ConversionComparator
+ (fromBoxed ? BOXED_PRIMITIVE_CLASSES[fromCode] : PRIMITIVE_CLASSES[fromCode]);
+ for (int toCode = BOOLEAN_CODE; toCode <= DOUBLE_CODE; toCode++) {
+ boolean expected = PRIMITIVE_MATRIX[toCode][fromCode];
+ Class toType = toBoxed ? BOXED_PRIMITIVE_CLASSES[toCode] : PRIMITIVE_CLASSES[toCode];
+ assertEquals(expected, cc.isConversionPossible(toType));
+ }
+ }
+ }
+
+ public void test_compare() {
+ ConversionComparator cc = new ConversionComparator(Object.class);
+ assertEquals(true, cc.compare(Object.class, String.class) < 0);
+ assertEquals(true, cc.compare(String.class, Object.class) > 0);
+ assertEquals(0, cc.compare(Object.class, Object.class));
+ assertEquals(0, cc.compare(String.class, String.class));
+ assertEquals(0, cc.compare(String.class, String.class));
+ assertEquals(0, cc.compare(int.class, Number.class));
+
+ cc = new ConversionComparator(String.class);
+ assertEquals(true, cc.compare(String.class, Object.class) < 0);
+ assertEquals(true, cc.compare(Object.class, String.class) > 0);
+ assertEquals(0, cc.compare(String.class, String.class));
+ assertEquals(true, cc.compare(int.class, String.class) > 0);
+
+ cc = new ConversionComparator(Integer.class);
+ assertEquals(true, cc.compare(String.class, Object.class) > 0);
+ assertEquals(true, cc.compare(Object.class, String.class) < 0);
+ assertEquals(true, cc.compare(Object.class, Number.class) > 0);
+ assertEquals(true, cc.compare(Integer.class, Number.class) < 0);
+ assertEquals(true, cc.compare(int.class, Number.class) > 0);
+ assertEquals(true, cc.compare(long.class, Number.class) > 0);
+ assertEquals(true, cc.compare(long.class, Long.class) < 0);
+
+ cc = new ConversionComparator(int.class);
+ assertEquals(true, cc.compare(String.class, Object.class) > 0);
+ assertEquals(true, cc.compare(Object.class, String.class) < 0);
+ assertEquals(true, cc.compare(Object.class, Number.class) > 0);
+ assertEquals(true, cc.compare(Integer.class, Number.class) < 0);
+ assertEquals(true, cc.compare(int.class, Number.class) < 0);
+ assertEquals(true, cc.compare(long.class, Number.class) < 0);
+ assertEquals(true, cc.compare(long.class, Long.class) < 0);
+
+ cc = new ConversionComparator(Byte.class);
+ assertEquals(true, cc.compare(int.class, Number.class) > 0);
+ assertEquals(true, cc.compare(long.class, Number.class) > 0);
+ assertEquals(true, cc.compare(long.class, Integer.class) < 0);
+
+ cc = new ConversionComparator(byte.class);
+ assertEquals(true, cc.compare(short.class, int.class) < 0);
+ assertEquals(true, cc.compare(long.class, int.class) > 0);
+
+ cc = new ConversionComparator(java.util.Date.class);
+ assertEquals(true, cc.compare(Object.class, Comparable.class) > 0);
+ assertEquals(0, cc.compare(java.io.Serializable.class, Comparable.class));
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2025-11-03 23:14:25 +0000