| /* |
| * 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.lang; |
| |
| import java.lang.reflect.Constructor; |
| import java.lang.reflect.Method; |
| import java.lang.reflect.Modifier; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import junit.framework.TestCase; |
| |
| |
| |
| /** |
| * Unit tests {@link org.apache.commons.lang.ClassUtils}. |
| * |
| * @author Apache Software Foundation |
| * @author Gary D. Gregory |
| * @author Tomasz Blachowicz |
| * @version $Id$ |
| */ |
| public class ClassUtilsTest extends TestCase { |
| |
| public ClassUtilsTest(String name) { |
| super(name); |
| } |
| |
| private static class Inner { |
| private class DeeplyNested{} |
| } |
| |
| //----------------------------------------------------------------------- |
| public void testConstructor() { |
| assertNotNull(new ClassUtils()); |
| Constructor[] cons = ClassUtils.class.getDeclaredConstructors(); |
| assertEquals(1, cons.length); |
| assertEquals(true, Modifier.isPublic(cons[0].getModifiers())); |
| assertEquals(true, Modifier.isPublic(ClassUtils.class.getModifiers())); |
| assertEquals(false, Modifier.isFinal(ClassUtils.class.getModifiers())); |
| } |
| |
| // ------------------------------------------------------------------------- |
| public void test_getShortClassName_Object() { |
| assertEquals("ClassUtils", ClassUtils.getShortClassName(new ClassUtils(), "<null>")); |
| assertEquals("ClassUtilsTest.Inner", ClassUtils.getShortClassName(new Inner(), "<null>")); |
| assertEquals("String", ClassUtils.getShortClassName("hello", "<null>")); |
| assertEquals("<null>", ClassUtils.getShortClassName(null, "<null>")); |
| } |
| |
| public void test_getShortClassName_Class() { |
| assertEquals("ClassUtils", ClassUtils.getShortClassName(ClassUtils.class)); |
| assertEquals("Map.Entry", ClassUtils.getShortClassName(Map.Entry.class)); |
| assertEquals("", ClassUtils.getShortClassName((Class) null)); |
| |
| // LANG-535 |
| assertEquals("String[]", ClassUtils.getShortClassName(String[].class)); |
| assertEquals("Map.Entry[]", ClassUtils.getShortClassName(Map.Entry[].class)); |
| |
| // Primitives |
| assertEquals("boolean", ClassUtils.getShortClassName(boolean.class)); |
| assertEquals("byte", ClassUtils.getShortClassName(byte.class)); |
| assertEquals("char", ClassUtils.getShortClassName(char.class)); |
| assertEquals("short", ClassUtils.getShortClassName(short.class)); |
| assertEquals("int", ClassUtils.getShortClassName(int.class)); |
| assertEquals("long", ClassUtils.getShortClassName(long.class)); |
| assertEquals("float", ClassUtils.getShortClassName(float.class)); |
| assertEquals("double", ClassUtils.getShortClassName(double.class)); |
| |
| // Primitive Arrays |
| assertEquals("boolean[]", ClassUtils.getShortClassName(boolean[].class)); |
| assertEquals("byte[]", ClassUtils.getShortClassName(byte[].class)); |
| assertEquals("char[]", ClassUtils.getShortClassName(char[].class)); |
| assertEquals("short[]", ClassUtils.getShortClassName(short[].class)); |
| assertEquals("int[]", ClassUtils.getShortClassName(int[].class)); |
| assertEquals("long[]", ClassUtils.getShortClassName(long[].class)); |
| assertEquals("float[]", ClassUtils.getShortClassName(float[].class)); |
| assertEquals("double[]", ClassUtils.getShortClassName(double[].class)); |
| |
| // Arrays of arrays of ... |
| assertEquals("String[][]", ClassUtils.getShortClassName(String[][].class)); |
| assertEquals("String[][][]", ClassUtils.getShortClassName(String[][][].class)); |
| assertEquals("String[][][][]", ClassUtils.getShortClassName(String[][][][].class)); |
| } |
| |
| public void test_getShortClassName_String() { |
| assertEquals("ClassUtils", ClassUtils.getShortClassName(ClassUtils.class.getName())); |
| assertEquals("Map.Entry", ClassUtils.getShortClassName(Map.Entry.class.getName())); |
| assertEquals("", ClassUtils.getShortClassName((String) null)); |
| assertEquals("", ClassUtils.getShortClassName("")); |
| } |
| |
| // ------------------------------------------------------------------------- |
| public void test_getPackageName_Object() { |
| assertEquals("org.apache.commons.lang", ClassUtils.getPackageName(new ClassUtils(), "<null>")); |
| assertEquals("org.apache.commons.lang", ClassUtils.getPackageName(new Inner(), "<null>")); |
| assertEquals("<null>", ClassUtils.getPackageName(null, "<null>")); |
| } |
| |
| public void test_getPackageName_Class() { |
| assertEquals("java.lang", ClassUtils.getPackageName(String.class)); |
| assertEquals("java.util", ClassUtils.getPackageName(Map.Entry.class)); |
| assertEquals("", ClassUtils.getPackageName((Class)null)); |
| |
| // LANG-535 |
| assertEquals("java.lang", ClassUtils.getPackageName(String[].class)); |
| |
| // Primitive Arrays |
| assertEquals("", ClassUtils.getPackageName(boolean[].class)); |
| assertEquals("", ClassUtils.getPackageName(byte[].class)); |
| assertEquals("", ClassUtils.getPackageName(char[].class)); |
| assertEquals("", ClassUtils.getPackageName(short[].class)); |
| assertEquals("", ClassUtils.getPackageName(int[].class)); |
| assertEquals("", ClassUtils.getPackageName(long[].class)); |
| assertEquals("", ClassUtils.getPackageName(float[].class)); |
| assertEquals("", ClassUtils.getPackageName(double[].class)); |
| |
| // Arrays of arrays of ... |
| assertEquals("java.lang", ClassUtils.getPackageName(String[][].class)); |
| assertEquals("java.lang", ClassUtils.getPackageName(String[][][].class)); |
| assertEquals("java.lang", ClassUtils.getPackageName(String[][][][].class)); |
| } |
| |
| public void test_getPackageName_String() { |
| assertEquals("org.apache.commons.lang", ClassUtils.getPackageName(ClassUtils.class.getName())); |
| assertEquals("java.util", ClassUtils.getPackageName(Map.Entry.class.getName())); |
| assertEquals("", ClassUtils.getPackageName((String)null)); |
| assertEquals("", ClassUtils.getPackageName("")); |
| } |
| |
| // ------------------------------------------------------------------------- |
| public void test_getAllSuperclasses_Class() { |
| List list = ClassUtils.getAllSuperclasses(CY.class); |
| assertEquals(2, list.size()); |
| assertEquals(CX.class, list.get(0)); |
| assertEquals(Object.class, list.get(1)); |
| |
| assertEquals(null, ClassUtils.getAllSuperclasses(null)); |
| } |
| |
| public void test_getAllInterfaces_Class() { |
| List list = ClassUtils.getAllInterfaces(CY.class); |
| assertEquals(6, list.size()); |
| assertEquals(IB.class, list.get(0)); |
| assertEquals(IC.class, list.get(1)); |
| assertEquals(ID.class, list.get(2)); |
| assertEquals(IE.class, list.get(3)); |
| assertEquals(IF.class, list.get(4)); |
| assertEquals(IA.class, list.get(5)); |
| |
| assertEquals(null, ClassUtils.getAllInterfaces(null)); |
| } |
| |
| private static interface IA { |
| } |
| private static interface IB { |
| } |
| private static interface IC extends ID, IE { |
| } |
| private static interface ID { |
| } |
| private static interface IE extends IF { |
| } |
| private static interface IF { |
| } |
| private static class CX implements IB, IA, IE { |
| } |
| private static class CY extends CX implements IB, IC { |
| } |
| |
| // ------------------------------------------------------------------------- |
| public void test_convertClassNamesToClasses_List() { |
| List list = new ArrayList(); |
| List result = ClassUtils.convertClassNamesToClasses(list); |
| assertEquals(0, result.size()); |
| |
| list.add("java.lang.String"); |
| list.add("java.lang.xxx"); |
| list.add("java.lang.Object"); |
| result = ClassUtils.convertClassNamesToClasses(list); |
| assertEquals(3, result.size()); |
| assertEquals(String.class, result.get(0)); |
| assertEquals(null, result.get(1)); |
| assertEquals(Object.class, result.get(2)); |
| |
| list.add(new Object()); |
| try { |
| ClassUtils.convertClassNamesToClasses(list); |
| fail("Should not have been able to convert list"); |
| } catch (ClassCastException expected) {} |
| assertEquals(null, ClassUtils.convertClassNamesToClasses(null)); |
| } |
| |
| public void test_convertClassesToClassNames_List() { |
| List list = new ArrayList(); |
| List result = ClassUtils.convertClassesToClassNames(list); |
| assertEquals(0, result.size()); |
| |
| list.add(String.class); |
| list.add(null); |
| list.add(Object.class); |
| result = ClassUtils.convertClassesToClassNames(list); |
| assertEquals(3, result.size()); |
| assertEquals("java.lang.String", result.get(0)); |
| assertEquals(null, result.get(1)); |
| assertEquals("java.lang.Object", result.get(2)); |
| |
| list.add(new Object()); |
| try { |
| ClassUtils.convertClassesToClassNames(list); |
| fail("Should not have been able to convert list"); |
| } catch (ClassCastException expected) {} |
| assertEquals(null, ClassUtils.convertClassesToClassNames(null)); |
| } |
| |
| // ------------------------------------------------------------------------- |
| public void test_isInnerClass_Class() { |
| assertEquals(true, ClassUtils.isInnerClass(Inner.class)); |
| assertEquals(true, ClassUtils.isInnerClass(Map.Entry.class)); |
| assertEquals(true, ClassUtils.isInnerClass(new Cloneable() { |
| }.getClass())); |
| assertEquals(false, ClassUtils.isInnerClass(this.getClass())); |
| assertEquals(false, ClassUtils.isInnerClass(String.class)); |
| assertEquals(false, ClassUtils.isInnerClass(null)); |
| } |
| |
| // ------------------------------------------------------------------------- |
| public void test_isAssignable_ClassArray_ClassArray() throws Exception { |
| Class[] array2 = new Class[] {Object.class, Object.class}; |
| Class[] array1 = new Class[] {Object.class}; |
| Class[] array1s = new Class[] {String.class}; |
| Class[] array0 = new Class[] {}; |
| |
| assertFalse(ClassUtils.isAssignable(array1, array2)); |
| assertFalse(ClassUtils.isAssignable(null, array2)); |
| assertTrue(ClassUtils.isAssignable(null, array0)); |
| assertTrue(ClassUtils.isAssignable(array0, array0)); |
| assertTrue(ClassUtils.isAssignable(array0, null)); |
| assertTrue(ClassUtils.isAssignable((Class[]) null, (Class[]) null)); |
| |
| assertFalse(ClassUtils.isAssignable(array1, array1s)); |
| assertTrue(ClassUtils.isAssignable(array1s, array1s)); |
| assertTrue(ClassUtils.isAssignable(array1s, array1)); |
| } |
| |
| public void test_isAssignable() throws Exception { |
| assertFalse(ClassUtils.isAssignable((Class) null, null)); |
| assertFalse(ClassUtils.isAssignable(String.class, null)); |
| |
| assertTrue(ClassUtils.isAssignable(null, Object.class)); |
| assertTrue(ClassUtils.isAssignable(null, Integer.class)); |
| assertFalse(ClassUtils.isAssignable(null, Integer.TYPE)); |
| assertTrue(ClassUtils.isAssignable(String.class, Object.class)); |
| assertTrue(ClassUtils.isAssignable(String.class, String.class)); |
| assertFalse(ClassUtils.isAssignable(Object.class, String.class)); |
| assertFalse(ClassUtils.isAssignable(Integer.TYPE, Integer.class)); |
| assertFalse(ClassUtils.isAssignable(Integer.class, Integer.TYPE)); |
| assertTrue(ClassUtils.isAssignable(Integer.TYPE, Integer.TYPE)); |
| assertTrue(ClassUtils.isAssignable(Integer.class, Integer.class)); |
| assertFalse(ClassUtils.isAssignable(Boolean.TYPE, Boolean.class)); |
| assertFalse(ClassUtils.isAssignable(Boolean.class, Boolean.TYPE)); |
| assertTrue(ClassUtils.isAssignable(Boolean.TYPE, Boolean.TYPE)); |
| assertTrue(ClassUtils.isAssignable(Boolean.class, Boolean.class)); |
| } |
| |
| public void test_isAssignable_Autoboxing() throws Exception { |
| assertFalse(ClassUtils.isAssignable((Class) null, null, true)); |
| assertFalse(ClassUtils.isAssignable(String.class, null, true)); |
| |
| assertTrue(ClassUtils.isAssignable(null, Object.class, true)); |
| assertTrue(ClassUtils.isAssignable(null, Integer.class, true)); |
| assertFalse(ClassUtils.isAssignable(null, Integer.TYPE, true)); |
| assertTrue(ClassUtils.isAssignable(String.class, Object.class, true)); |
| assertTrue(ClassUtils.isAssignable(String.class, String.class, true)); |
| assertFalse(ClassUtils.isAssignable(Object.class, String.class, true)); |
| assertTrue(ClassUtils.isAssignable(Integer.TYPE, Integer.class, true)); |
| assertTrue(ClassUtils.isAssignable(Integer.class, Integer.TYPE, true)); |
| assertTrue(ClassUtils.isAssignable(Integer.TYPE, Integer.TYPE, true)); |
| assertTrue(ClassUtils.isAssignable(Integer.class, Integer.class, true)); |
| assertTrue(ClassUtils.isAssignable(Boolean.TYPE, Boolean.class, true)); |
| assertTrue(ClassUtils.isAssignable(Boolean.class, Boolean.TYPE, true)); |
| assertTrue(ClassUtils.isAssignable(Boolean.TYPE, Boolean.TYPE, true)); |
| assertTrue(ClassUtils.isAssignable(Boolean.class, Boolean.class, true)); |
| } |
| |
| public void test_isAssignable_Widening() throws Exception { |
| // test byte conversions |
| assertFalse("byte -> char", ClassUtils.isAssignable(Byte.TYPE, Character.TYPE)); |
| assertTrue("byte -> byte", ClassUtils.isAssignable(Byte.TYPE, Byte.TYPE)); |
| assertTrue("byte -> short", ClassUtils.isAssignable(Byte.TYPE, Short.TYPE)); |
| assertTrue("byte -> int", ClassUtils.isAssignable(Byte.TYPE, Integer.TYPE)); |
| assertTrue("byte -> long", ClassUtils.isAssignable(Byte.TYPE, Long.TYPE)); |
| assertTrue("byte -> float", ClassUtils.isAssignable(Byte.TYPE, Float.TYPE)); |
| assertTrue("byte -> double", ClassUtils.isAssignable(Byte.TYPE, Double.TYPE)); |
| assertFalse("byte -> boolean", ClassUtils.isAssignable(Byte.TYPE, Boolean.TYPE)); |
| |
| // test short conversions |
| assertFalse("short -> char", ClassUtils.isAssignable(Short.TYPE, Character.TYPE)); |
| assertFalse("short -> byte", ClassUtils.isAssignable(Short.TYPE, Byte.TYPE)); |
| assertTrue("short -> short", ClassUtils.isAssignable(Short.TYPE, Short.TYPE)); |
| assertTrue("short -> int", ClassUtils.isAssignable(Short.TYPE, Integer.TYPE)); |
| assertTrue("short -> long", ClassUtils.isAssignable(Short.TYPE, Long.TYPE)); |
| assertTrue("short -> float", ClassUtils.isAssignable(Short.TYPE, Float.TYPE)); |
| assertTrue("short -> double", ClassUtils.isAssignable(Short.TYPE, Double.TYPE)); |
| assertFalse("short -> boolean", ClassUtils.isAssignable(Short.TYPE, Boolean.TYPE)); |
| |
| // test char conversions |
| assertTrue("char -> char", ClassUtils.isAssignable(Character.TYPE, Character.TYPE)); |
| assertFalse("char -> byte", ClassUtils.isAssignable(Character.TYPE, Byte.TYPE)); |
| assertFalse("char -> short", ClassUtils.isAssignable(Character.TYPE, Short.TYPE)); |
| assertTrue("char -> int", ClassUtils.isAssignable(Character.TYPE, Integer.TYPE)); |
| assertTrue("char -> long", ClassUtils.isAssignable(Character.TYPE, Long.TYPE)); |
| assertTrue("char -> float", ClassUtils.isAssignable(Character.TYPE, Float.TYPE)); |
| assertTrue("char -> double", ClassUtils.isAssignable(Character.TYPE, Double.TYPE)); |
| assertFalse("char -> boolean", ClassUtils.isAssignable(Character.TYPE, Boolean.TYPE)); |
| |
| // test int conversions |
| assertFalse("int -> char", ClassUtils.isAssignable(Integer.TYPE, Character.TYPE)); |
| assertFalse("int -> byte", ClassUtils.isAssignable(Integer.TYPE, Byte.TYPE)); |
| assertFalse("int -> short", ClassUtils.isAssignable(Integer.TYPE, Short.TYPE)); |
| assertTrue("int -> int", ClassUtils.isAssignable(Integer.TYPE, Integer.TYPE)); |
| assertTrue("int -> long", ClassUtils.isAssignable(Integer.TYPE, Long.TYPE)); |
| assertTrue("int -> float", ClassUtils.isAssignable(Integer.TYPE, Float.TYPE)); |
| assertTrue("int -> double", ClassUtils.isAssignable(Integer.TYPE, Double.TYPE)); |
| assertFalse("int -> boolean", ClassUtils.isAssignable(Integer.TYPE, Boolean.TYPE)); |
| |
| // test long conversions |
| assertFalse("long -> char", ClassUtils.isAssignable(Long.TYPE, Character.TYPE)); |
| assertFalse("long -> byte", ClassUtils.isAssignable(Long.TYPE, Byte.TYPE)); |
| assertFalse("long -> short", ClassUtils.isAssignable(Long.TYPE, Short.TYPE)); |
| assertFalse("long -> int", ClassUtils.isAssignable(Long.TYPE, Integer.TYPE)); |
| assertTrue("long -> long", ClassUtils.isAssignable(Long.TYPE, Long.TYPE)); |
| assertTrue("long -> float", ClassUtils.isAssignable(Long.TYPE, Float.TYPE)); |
| assertTrue("long -> double", ClassUtils.isAssignable(Long.TYPE, Double.TYPE)); |
| assertFalse("long -> boolean", ClassUtils.isAssignable(Long.TYPE, Boolean.TYPE)); |
| |
| // test float conversions |
| assertFalse("float -> char", ClassUtils.isAssignable(Float.TYPE, Character.TYPE)); |
| assertFalse("float -> byte", ClassUtils.isAssignable(Float.TYPE, Byte.TYPE)); |
| assertFalse("float -> short", ClassUtils.isAssignable(Float.TYPE, Short.TYPE)); |
| assertFalse("float -> int", ClassUtils.isAssignable(Float.TYPE, Integer.TYPE)); |
| assertFalse("float -> long", ClassUtils.isAssignable(Float.TYPE, Long.TYPE)); |
| assertTrue("float -> float", ClassUtils.isAssignable(Float.TYPE, Float.TYPE)); |
| assertTrue("float -> double", ClassUtils.isAssignable(Float.TYPE, Double.TYPE)); |
| assertFalse("float -> boolean", ClassUtils.isAssignable(Float.TYPE, Boolean.TYPE)); |
| |
| // test double conversions |
| assertFalse("double -> char", ClassUtils.isAssignable(Double.TYPE, Character.TYPE)); |
| assertFalse("double -> byte", ClassUtils.isAssignable(Double.TYPE, Byte.TYPE)); |
| assertFalse("double -> short", ClassUtils.isAssignable(Double.TYPE, Short.TYPE)); |
| assertFalse("double -> int", ClassUtils.isAssignable(Double.TYPE, Integer.TYPE)); |
| assertFalse("double -> long", ClassUtils.isAssignable(Double.TYPE, Long.TYPE)); |
| assertFalse("double -> float", ClassUtils.isAssignable(Double.TYPE, Float.TYPE)); |
| assertTrue("double -> double", ClassUtils.isAssignable(Double.TYPE, Double.TYPE)); |
| assertFalse("double -> boolean", ClassUtils.isAssignable(Double.TYPE, Boolean.TYPE)); |
| |
| // test boolean conversions |
| assertFalse("boolean -> char", ClassUtils.isAssignable(Boolean.TYPE, Character.TYPE)); |
| assertFalse("boolean -> byte", ClassUtils.isAssignable(Boolean.TYPE, Byte.TYPE)); |
| assertFalse("boolean -> short", ClassUtils.isAssignable(Boolean.TYPE, Short.TYPE)); |
| assertFalse("boolean -> int", ClassUtils.isAssignable(Boolean.TYPE, Integer.TYPE)); |
| assertFalse("boolean -> long", ClassUtils.isAssignable(Boolean.TYPE, Long.TYPE)); |
| assertFalse("boolean -> float", ClassUtils.isAssignable(Boolean.TYPE, Float.TYPE)); |
| assertFalse("boolean -> double", ClassUtils.isAssignable(Boolean.TYPE, Double.TYPE)); |
| assertTrue("boolean -> boolean", ClassUtils.isAssignable(Boolean.TYPE, Boolean.TYPE)); |
| } |
| |
| public void test_isAssignable_Unboxing_Widening() throws Exception { |
| // test byte conversions |
| assertFalse("byte -> char", ClassUtils.isAssignable(Byte.class, Character.TYPE, true)); |
| assertTrue("byte -> byte", ClassUtils.isAssignable(Byte.class, Byte.TYPE, true)); |
| assertTrue("byte -> short", ClassUtils.isAssignable(Byte.class, Short.TYPE, true)); |
| assertTrue("byte -> int", ClassUtils.isAssignable(Byte.class, Integer.TYPE, true)); |
| assertTrue("byte -> long", ClassUtils.isAssignable(Byte.class, Long.TYPE, true)); |
| assertTrue("byte -> float", ClassUtils.isAssignable(Byte.class, Float.TYPE, true)); |
| assertTrue("byte -> double", ClassUtils.isAssignable(Byte.class, Double.TYPE, true)); |
| assertFalse("byte -> boolean", ClassUtils.isAssignable(Byte.class, Boolean.TYPE, true)); |
| |
| // test short conversions |
| assertFalse("short -> char", ClassUtils.isAssignable(Short.class, Character.TYPE, true)); |
| assertFalse("short -> byte", ClassUtils.isAssignable(Short.class, Byte.TYPE, true)); |
| assertTrue("short -> short", ClassUtils.isAssignable(Short.class, Short.TYPE, true)); |
| assertTrue("short -> int", ClassUtils.isAssignable(Short.class, Integer.TYPE, true)); |
| assertTrue("short -> long", ClassUtils.isAssignable(Short.class, Long.TYPE, true)); |
| assertTrue("short -> float", ClassUtils.isAssignable(Short.class, Float.TYPE, true)); |
| assertTrue("short -> double", ClassUtils.isAssignable(Short.class, Double.TYPE, true)); |
| assertFalse("short -> boolean", ClassUtils.isAssignable(Short.class, Boolean.TYPE, true)); |
| |
| // test char conversions |
| assertTrue("char -> char", ClassUtils.isAssignable(Character.class, Character.TYPE, true)); |
| assertFalse("char -> byte", ClassUtils.isAssignable(Character.class, Byte.TYPE, true)); |
| assertFalse("char -> short", ClassUtils.isAssignable(Character.class, Short.TYPE, true)); |
| assertTrue("char -> int", ClassUtils.isAssignable(Character.class, Integer.TYPE, true)); |
| assertTrue("char -> long", ClassUtils.isAssignable(Character.class, Long.TYPE, true)); |
| assertTrue("char -> float", ClassUtils.isAssignable(Character.class, Float.TYPE, true)); |
| assertTrue("char -> double", ClassUtils.isAssignable(Character.class, Double.TYPE, true)); |
| assertFalse("char -> boolean", ClassUtils.isAssignable(Character.class, Boolean.TYPE, true)); |
| |
| // test int conversions |
| assertFalse("int -> char", ClassUtils.isAssignable(Integer.class, Character.TYPE, true)); |
| assertFalse("int -> byte", ClassUtils.isAssignable(Integer.class, Byte.TYPE, true)); |
| assertFalse("int -> short", ClassUtils.isAssignable(Integer.class, Short.TYPE, true)); |
| assertTrue("int -> int", ClassUtils.isAssignable(Integer.class, Integer.TYPE, true)); |
| assertTrue("int -> long", ClassUtils.isAssignable(Integer.class, Long.TYPE, true)); |
| assertTrue("int -> float", ClassUtils.isAssignable(Integer.class, Float.TYPE, true)); |
| assertTrue("int -> double", ClassUtils.isAssignable(Integer.class, Double.TYPE, true)); |
| assertFalse("int -> boolean", ClassUtils.isAssignable(Integer.class, Boolean.TYPE, true)); |
| |
| // test long conversions |
| assertFalse("long -> char", ClassUtils.isAssignable(Long.class, Character.TYPE, true)); |
| assertFalse("long -> byte", ClassUtils.isAssignable(Long.class, Byte.TYPE, true)); |
| assertFalse("long -> short", ClassUtils.isAssignable(Long.class, Short.TYPE, true)); |
| assertFalse("long -> int", ClassUtils.isAssignable(Long.class, Integer.TYPE, true)); |
| assertTrue("long -> long", ClassUtils.isAssignable(Long.class, Long.TYPE, true)); |
| assertTrue("long -> float", ClassUtils.isAssignable(Long.class, Float.TYPE, true)); |
| assertTrue("long -> double", ClassUtils.isAssignable(Long.class, Double.TYPE, true)); |
| assertFalse("long -> boolean", ClassUtils.isAssignable(Long.class, Boolean.TYPE, true)); |
| |
| // test float conversions |
| assertFalse("float -> char", ClassUtils.isAssignable(Float.class, Character.TYPE, true)); |
| assertFalse("float -> byte", ClassUtils.isAssignable(Float.class, Byte.TYPE, true)); |
| assertFalse("float -> short", ClassUtils.isAssignable(Float.class, Short.TYPE, true)); |
| assertFalse("float -> int", ClassUtils.isAssignable(Float.class, Integer.TYPE, true)); |
| assertFalse("float -> long", ClassUtils.isAssignable(Float.class, Long.TYPE, true)); |
| assertTrue("float -> float", ClassUtils.isAssignable(Float.class, Float.TYPE, true)); |
| assertTrue("float -> double", ClassUtils.isAssignable(Float.class, Double.TYPE, true)); |
| assertFalse("float -> boolean", ClassUtils.isAssignable(Float.class, Boolean.TYPE, true)); |
| |
| // test double conversions |
| assertFalse("double -> char", ClassUtils.isAssignable(Double.class, Character.TYPE, true)); |
| assertFalse("double -> byte", ClassUtils.isAssignable(Double.class, Byte.TYPE, true)); |
| assertFalse("double -> short", ClassUtils.isAssignable(Double.class, Short.TYPE, true)); |
| assertFalse("double -> int", ClassUtils.isAssignable(Double.class, Integer.TYPE, true)); |
| assertFalse("double -> long", ClassUtils.isAssignable(Double.class, Long.TYPE, true)); |
| assertFalse("double -> float", ClassUtils.isAssignable(Double.class, Float.TYPE, true)); |
| assertTrue("double -> double", ClassUtils.isAssignable(Double.class, Double.TYPE, true)); |
| assertFalse("double -> boolean", ClassUtils.isAssignable(Double.class, Boolean.TYPE, true)); |
| |
| // test boolean conversions |
| assertFalse("boolean -> char", ClassUtils.isAssignable(Boolean.class, Character.TYPE, true)); |
| assertFalse("boolean -> byte", ClassUtils.isAssignable(Boolean.class, Byte.TYPE, true)); |
| assertFalse("boolean -> short", ClassUtils.isAssignable(Boolean.class, Short.TYPE, true)); |
| assertFalse("boolean -> int", ClassUtils.isAssignable(Boolean.class, Integer.TYPE, true)); |
| assertFalse("boolean -> long", ClassUtils.isAssignable(Boolean.class, Long.TYPE, true)); |
| assertFalse("boolean -> float", ClassUtils.isAssignable(Boolean.class, Float.TYPE, true)); |
| assertFalse("boolean -> double", ClassUtils.isAssignable(Boolean.class, Double.TYPE, true)); |
| assertTrue("boolean -> boolean", ClassUtils.isAssignable(Boolean.class, Boolean.TYPE, true)); |
| } |
| |
| public void testPrimitiveToWrapper() { |
| |
| // test primitive classes |
| assertEquals("boolean -> Boolean.class", |
| Boolean.class, ClassUtils.primitiveToWrapper(Boolean.TYPE)); |
| assertEquals("byte -> Byte.class", |
| Byte.class, ClassUtils.primitiveToWrapper(Byte.TYPE)); |
| assertEquals("char -> Character.class", |
| Character.class, ClassUtils.primitiveToWrapper(Character.TYPE)); |
| assertEquals("short -> Short.class", |
| Short.class, ClassUtils.primitiveToWrapper(Short.TYPE)); |
| assertEquals("int -> Integer.class", |
| Integer.class, ClassUtils.primitiveToWrapper(Integer.TYPE)); |
| assertEquals("long -> Long.class", |
| Long.class, ClassUtils.primitiveToWrapper(Long.TYPE)); |
| assertEquals("double -> Double.class", |
| Double.class, ClassUtils.primitiveToWrapper(Double.TYPE)); |
| assertEquals("float -> Float.class", |
| Float.class, ClassUtils.primitiveToWrapper(Float.TYPE)); |
| |
| // test a few other classes |
| assertEquals("String.class -> String.class", |
| String.class, ClassUtils.primitiveToWrapper(String.class)); |
| assertEquals("ClassUtils.class -> ClassUtils.class", |
| org.apache.commons.lang.ClassUtils.class, |
| ClassUtils.primitiveToWrapper(org.apache.commons.lang.ClassUtils.class)); |
| assertEquals("Void.TYPE -> Void.TYPE", |
| Void.TYPE, ClassUtils.primitiveToWrapper(Void.TYPE)); |
| |
| // test null |
| assertNull("null -> null", |
| ClassUtils.primitiveToWrapper(null)); |
| } |
| |
| public void testPrimitivesToWrappers() { |
| // test null |
| assertNull("null -> null", |
| ClassUtils.primitivesToWrappers(null)); |
| // test empty array |
| assertEquals("empty -> empty", |
| ArrayUtils.EMPTY_CLASS_ARRAY, ClassUtils.primitivesToWrappers(ArrayUtils.EMPTY_CLASS_ARRAY)); |
| |
| // test an array of various classes |
| final Class[] primitives = new Class[] { |
| Boolean.TYPE, Byte.TYPE, Character.TYPE, Short.TYPE, |
| Integer.TYPE, Long.TYPE, Double.TYPE, Float.TYPE, |
| String.class, ClassUtils.class |
| }; |
| Class[] wrappers= ClassUtils.primitivesToWrappers(primitives); |
| |
| for (int i=0; i < primitives.length; i++) { |
| // test each returned wrapper |
| Class primitive = primitives[i]; |
| Class expectedWrapper = ClassUtils.primitiveToWrapper(primitive); |
| |
| assertEquals(primitive + " -> " + expectedWrapper, expectedWrapper, wrappers[i]); |
| } |
| |
| // test an array of no primitive classes |
| final Class[] noPrimitives = new Class[] { |
| String.class, ClassUtils.class, Void.TYPE |
| }; |
| // This used to return the exact same array, but no longer does. |
| assertNotSame("unmodified", noPrimitives, ClassUtils.primitivesToWrappers(noPrimitives)); |
| } |
| |
| public void testWrapperToPrimitive() { |
| // an array with classes to convert |
| final Class[] primitives = { |
| Boolean.TYPE, Byte.TYPE, Character.TYPE, Short.TYPE, |
| Integer.TYPE, Long.TYPE, Float.TYPE, Double.TYPE |
| }; |
| for (int i = 0; i < primitives.length; i++) { |
| Class wrapperCls = ClassUtils.primitiveToWrapper(primitives[i]); |
| assertFalse("Still primitive", wrapperCls.isPrimitive()); |
| assertEquals(wrapperCls + " -> " + primitives[i], primitives[i], |
| ClassUtils.wrapperToPrimitive(wrapperCls)); |
| } |
| } |
| |
| public void testWrapperToPrimitiveNoWrapper() { |
| assertNull("Wrong result for non wrapper class", ClassUtils.wrapperToPrimitive(String.class)); |
| } |
| |
| public void testWrapperToPrimitiveNull() { |
| assertNull("Wrong result for null class", ClassUtils.wrapperToPrimitive(null)); |
| } |
| |
| public void testWrappersToPrimitives() { |
| // an array with classes to test |
| final Class[] classes = { |
| Boolean.class, Byte.class, Character.class, Short.class, |
| Integer.class, Long.class, Float.class, Double.class, |
| String.class, ClassUtils.class, null |
| }; |
| |
| Class[] primitives = ClassUtils.wrappersToPrimitives(classes); |
| // now test the result |
| assertEquals("Wrong length of result array", classes.length, primitives.length); |
| for (int i = 0; i < classes.length; i++) { |
| Class expectedPrimitive = ClassUtils.wrapperToPrimitive(classes[i]); |
| assertEquals(classes[i] + " -> " + expectedPrimitive, expectedPrimitive, |
| primitives[i]); |
| } |
| } |
| |
| public void testWrappersToPrimitivesNull() { |
| assertNull("Wrong result for null input", ClassUtils.wrappersToPrimitives(null)); |
| } |
| |
| public void testWrappersToPrimitivesEmpty() { |
| Class[] empty = new Class[0]; |
| assertEquals("Wrong result for empty input", empty, ClassUtils.wrappersToPrimitives(empty)); |
| } |
| |
| public void testGetClassClassNotFound() throws Exception { |
| assertGetClassThrowsClassNotFound( "bool" ); |
| assertGetClassThrowsClassNotFound( "bool[]" ); |
| assertGetClassThrowsClassNotFound( "integer[]" ); |
| } |
| |
| public void testGetClassInvalidArguments() throws Exception { |
| assertGetClassThrowsIllegalArgument( null ); |
| assertGetClassThrowsClassNotFound( "[][][]" ); |
| assertGetClassThrowsClassNotFound( "[[]" ); |
| assertGetClassThrowsClassNotFound( "[" ); |
| assertGetClassThrowsClassNotFound( "java.lang.String][" ); |
| assertGetClassThrowsClassNotFound( ".hello.world" ); |
| assertGetClassThrowsClassNotFound( "hello..world" ); |
| } |
| |
| public void testWithInterleavingWhitespace() throws ClassNotFoundException { |
| assertEquals( int[].class, ClassUtils.getClass( " int [ ] " ) ); |
| assertEquals( long[].class, ClassUtils.getClass( "\rlong\t[\n]\r" ) ); |
| assertEquals( short[].class, ClassUtils.getClass( "\tshort \t\t[]" ) ); |
| assertEquals( byte[].class, ClassUtils.getClass( "byte[\t\t\n\r] " ) ); |
| } |
| |
| public void testGetInnerClass() throws ClassNotFoundException { |
| assertEquals( Inner.DeeplyNested.class, ClassUtils.getClass( "org.apache.commons.lang.ClassUtilsTest.Inner.DeeplyNested" ) ); |
| assertEquals( Inner.DeeplyNested.class, ClassUtils.getClass( "org.apache.commons.lang.ClassUtilsTest.Inner$DeeplyNested" ) ); |
| assertEquals( Inner.DeeplyNested.class, ClassUtils.getClass( "org.apache.commons.lang.ClassUtilsTest$Inner$DeeplyNested" ) ); |
| assertEquals( Inner.DeeplyNested.class, ClassUtils.getClass( "org.apache.commons.lang.ClassUtilsTest$Inner.DeeplyNested" ) ); |
| } |
| |
| public void testGetClassByNormalNameArrays() throws ClassNotFoundException { |
| assertEquals( int[].class, ClassUtils.getClass( "int[]" ) ); |
| assertEquals( long[].class, ClassUtils.getClass( "long[]" ) ); |
| assertEquals( short[].class, ClassUtils.getClass( "short[]" ) ); |
| assertEquals( byte[].class, ClassUtils.getClass( "byte[]" ) ); |
| assertEquals( char[].class, ClassUtils.getClass( "char[]" ) ); |
| assertEquals( float[].class, ClassUtils.getClass( "float[]" ) ); |
| assertEquals( double[].class, ClassUtils.getClass( "double[]" ) ); |
| assertEquals( boolean[].class, ClassUtils.getClass( "boolean[]" ) ); |
| assertEquals( String[].class, ClassUtils.getClass( "java.lang.String[]" ) ); |
| assertEquals( java.util.Map.Entry[].class, ClassUtils.getClass( "java.util.Map.Entry[]" ) ); |
| assertEquals( java.util.Map.Entry[].class, ClassUtils.getClass( "java.util.Map$Entry[]" ) ); |
| assertEquals( java.util.Map.Entry[].class, ClassUtils.getClass( "[Ljava.util.Map.Entry;" ) ); |
| assertEquals( java.util.Map.Entry[].class, ClassUtils.getClass( "[Ljava.util.Map$Entry;" ) ); |
| } |
| |
| public void testGetClassByNormalNameArrays2D() throws ClassNotFoundException { |
| assertEquals( int[][].class, ClassUtils.getClass( "int[][]" ) ); |
| assertEquals( long[][].class, ClassUtils.getClass( "long[][]" ) ); |
| assertEquals( short[][].class, ClassUtils.getClass( "short[][]" ) ); |
| assertEquals( byte[][].class, ClassUtils.getClass( "byte[][]" ) ); |
| assertEquals( char[][].class, ClassUtils.getClass( "char[][]" ) ); |
| assertEquals( float[][].class, ClassUtils.getClass( "float[][]" ) ); |
| assertEquals( double[][].class, ClassUtils.getClass( "double[][]" ) ); |
| assertEquals( boolean[][].class, ClassUtils.getClass( "boolean[][]" ) ); |
| assertEquals( String[][].class, ClassUtils.getClass( "java.lang.String[][]" ) ); |
| } |
| |
| public void testGetClassWithArrayClasses2D() throws Exception { |
| assertGetClassReturnsClass( String[][].class ); |
| assertGetClassReturnsClass( int[][].class ); |
| assertGetClassReturnsClass( long[][].class ); |
| assertGetClassReturnsClass( short[][].class ); |
| assertGetClassReturnsClass( byte[][].class ); |
| assertGetClassReturnsClass( char[][].class ); |
| assertGetClassReturnsClass( float[][].class ); |
| assertGetClassReturnsClass( double[][].class ); |
| assertGetClassReturnsClass( boolean[][].class ); |
| } |
| |
| public void testGetClassWithArrayClasses() throws Exception { |
| assertGetClassReturnsClass( String[].class ); |
| assertGetClassReturnsClass( int[].class ); |
| assertGetClassReturnsClass( long[].class ); |
| assertGetClassReturnsClass( short[].class ); |
| assertGetClassReturnsClass( byte[].class ); |
| assertGetClassReturnsClass( char[].class ); |
| assertGetClassReturnsClass( float[].class ); |
| assertGetClassReturnsClass( double[].class ); |
| assertGetClassReturnsClass( boolean[].class ); |
| } |
| |
| public void testGetClassRawPrimitives() throws ClassNotFoundException { |
| assertEquals( int.class, ClassUtils.getClass( "int" ) ); |
| assertEquals( long.class, ClassUtils.getClass( "long" ) ); |
| assertEquals( short.class, ClassUtils.getClass( "short" ) ); |
| assertEquals( byte.class, ClassUtils.getClass( "byte" ) ); |
| assertEquals( char.class, ClassUtils.getClass( "char" ) ); |
| assertEquals( float.class, ClassUtils.getClass( "float" ) ); |
| assertEquals( double.class, ClassUtils.getClass( "double" ) ); |
| assertEquals( boolean.class, ClassUtils.getClass( "boolean" ) ); |
| } |
| |
| private void assertGetClassReturnsClass( Class c ) throws Exception { |
| assertEquals( c, ClassUtils.getClass( c.getName() ) ); |
| } |
| |
| private void assertGetClassThrowsException( String className, Class exceptionType ) throws Exception { |
| try { |
| ClassUtils.getClass( className ); |
| fail( "ClassUtils.getClass() should fail with an exception of type " + exceptionType.getName() + " when given class name \"" + className + "\"." ); |
| } |
| catch( Exception e ) { |
| assertTrue( exceptionType.isAssignableFrom( e.getClass() ) ); |
| } |
| } |
| |
| private void assertGetClassThrowsIllegalArgument( String className ) throws Exception { |
| assertGetClassThrowsException( className, IllegalArgumentException.class ); |
| } |
| |
| private void assertGetClassThrowsClassNotFound( String className ) throws Exception { |
| assertGetClassThrowsException( className, ClassNotFoundException.class ); |
| } |
| |
| // Show the Java bug: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4071957 |
| // We may have to delete this if a JDK fixes the bug. |
| public void testShowJavaBug() throws Exception { |
| // Tests with Collections$UnmodifiableSet |
| Set set = Collections.unmodifiableSet(new HashSet()); |
| Method isEmptyMethod = set.getClass().getMethod("isEmpty", new Class[0]); |
| try { |
| isEmptyMethod.invoke(set, new Object[0]); |
| fail("Failed to throw IllegalAccessException as expected"); |
| } catch(IllegalAccessException iae) { |
| // expected |
| } |
| } |
| |
| public void testGetPublicMethod() throws Exception { |
| // Tests with Collections$UnmodifiableSet |
| Set set = Collections.unmodifiableSet(new HashSet()); |
| Method isEmptyMethod = ClassUtils.getPublicMethod(set.getClass(), "isEmpty", new Class[0]); |
| assertTrue(Modifier.isPublic(isEmptyMethod.getDeclaringClass().getModifiers())); |
| |
| try { |
| isEmptyMethod.invoke(set, new Object[0]); |
| } catch(java.lang.IllegalAccessException iae) { |
| fail("Should not have thrown IllegalAccessException"); |
| } |
| |
| // Tests with a public Class |
| Method toStringMethod = ClassUtils.getPublicMethod(Object.class, "toString", new Class[0]); |
| assertEquals(Object.class.getMethod("toString", new Class[0]), toStringMethod); |
| } |
| |
| public void testToClass_object() { |
| assertNull(ClassUtils.toClass(null)); |
| |
| assertSame(ArrayUtils.EMPTY_CLASS_ARRAY, ClassUtils.toClass(ArrayUtils.EMPTY_OBJECT_ARRAY)); |
| |
| assertTrue(Arrays.equals(new Class[] { String.class, Integer.class, Double.class }, |
| ClassUtils.toClass(new Object[] { "Test", new Integer(1), new Double(99d) }))); |
| |
| assertTrue(Arrays.equals(new Class[] { String.class, null, Double.class }, |
| ClassUtils.toClass(new Object[] { "Test", null, new Double(99d) }))); |
| } |
| |
| public void test_getShortCanonicalName_Object() { |
| assertEquals("<null>", ClassUtils.getShortCanonicalName(null, "<null>")); |
| assertEquals("ClassUtils", ClassUtils.getShortCanonicalName(new ClassUtils(), "<null>")); |
| assertEquals("ClassUtils[]", ClassUtils.getShortCanonicalName(new ClassUtils[0], "<null>")); |
| assertEquals("ClassUtils[][]", ClassUtils.getShortCanonicalName(new ClassUtils[0][0], "<null>")); |
| assertEquals("int[]", ClassUtils.getShortCanonicalName(new int[0], "<null>")); |
| assertEquals("int[][]", ClassUtils.getShortCanonicalName(new int[0][0], "<null>")); |
| } |
| |
| public void test_getShortCanonicalName_Class() { |
| assertEquals("ClassUtils", ClassUtils.getShortCanonicalName(ClassUtils.class)); |
| assertEquals("ClassUtils[]", ClassUtils.getShortCanonicalName(ClassUtils[].class)); |
| assertEquals("ClassUtils[][]", ClassUtils.getShortCanonicalName(ClassUtils[][].class)); |
| assertEquals("int[]", ClassUtils.getShortCanonicalName(int[].class)); |
| assertEquals("int[][]", ClassUtils.getShortCanonicalName(int[][].class)); |
| } |
| |
| public void test_getShortCanonicalName_String() { |
| assertEquals("ClassUtils", ClassUtils.getShortCanonicalName("org.apache.commons.lang.ClassUtils")); |
| assertEquals("ClassUtils[]", ClassUtils.getShortCanonicalName("[Lorg.apache.commons.lang.ClassUtils;")); |
| assertEquals("ClassUtils[][]", ClassUtils.getShortCanonicalName("[[Lorg.apache.commons.lang.ClassUtils;")); |
| assertEquals("ClassUtils[]", ClassUtils.getShortCanonicalName("org.apache.commons.lang.ClassUtils[]")); |
| assertEquals("ClassUtils[][]", ClassUtils.getShortCanonicalName("org.apache.commons.lang.ClassUtils[][]")); |
| assertEquals("int[]", ClassUtils.getShortCanonicalName("[I")); |
| assertEquals("int[][]", ClassUtils.getShortCanonicalName("[[I")); |
| assertEquals("int[]", ClassUtils.getShortCanonicalName("int[]")); |
| assertEquals("int[][]", ClassUtils.getShortCanonicalName("int[][]")); |
| } |
| |
| public void test_getPackageCanonicalName_Object() { |
| assertEquals("<null>", ClassUtils.getPackageCanonicalName(null, "<null>")); |
| assertEquals("org.apache.commons.lang", ClassUtils.getPackageCanonicalName(new ClassUtils(), "<null>")); |
| assertEquals("org.apache.commons.lang", ClassUtils.getPackageCanonicalName(new ClassUtils[0], "<null>")); |
| assertEquals("org.apache.commons.lang", ClassUtils.getPackageCanonicalName(new ClassUtils[0][0], "<null>")); |
| assertEquals("", ClassUtils.getPackageCanonicalName(new int[0], "<null>")); |
| assertEquals("", ClassUtils.getPackageCanonicalName(new int[0][0], "<null>")); |
| } |
| |
| public void test_getPackageCanonicalName_Class() { |
| assertEquals("org.apache.commons.lang", ClassUtils.getPackageCanonicalName(ClassUtils.class)); |
| assertEquals("org.apache.commons.lang", ClassUtils.getPackageCanonicalName(ClassUtils[].class)); |
| assertEquals("org.apache.commons.lang", ClassUtils.getPackageCanonicalName(ClassUtils[][].class)); |
| assertEquals("", ClassUtils.getPackageCanonicalName(int[].class)); |
| assertEquals("", ClassUtils.getPackageCanonicalName(int[][].class)); |
| } |
| |
| public void test_getPackageCanonicalName_String() { |
| assertEquals("org.apache.commons.lang", |
| ClassUtils.getPackageCanonicalName("org.apache.commons.lang.ClassUtils")); |
| assertEquals("org.apache.commons.lang", |
| ClassUtils.getPackageCanonicalName("[Lorg.apache.commons.lang.ClassUtils;")); |
| assertEquals("org.apache.commons.lang", |
| ClassUtils.getPackageCanonicalName("[[Lorg.apache.commons.lang.ClassUtils;")); |
| assertEquals("org.apache.commons.lang", |
| ClassUtils.getPackageCanonicalName("org.apache.commons.lang.ClassUtils[]")); |
| assertEquals("org.apache.commons.lang", |
| ClassUtils.getPackageCanonicalName("org.apache.commons.lang.ClassUtils[][]")); |
| assertEquals("", ClassUtils.getPackageCanonicalName("[I")); |
| assertEquals("", ClassUtils.getPackageCanonicalName("[[I")); |
| assertEquals("", ClassUtils.getPackageCanonicalName("int[]")); |
| assertEquals("", ClassUtils.getPackageCanonicalName("int[][]")); |
| } |
| |
| } |
