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/*******************************************************************************
* Copyright (c) 2008, 2009 Oracle. All rights reserved.
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0, which accompanies this distribution
* and is available at http://www.eclipse.org/legal/epl-v10.html.
*
* Contributors:
* Oracle - initial API and implementation
******************************************************************************/
package org.eclipse.jpt.common.utility.tests.internal;
import java.lang.reflect.Method;
import java.util.Arrays;
import junit.framework.TestCase;
import org.eclipse.jpt.common.utility.JavaType;
import org.eclipse.jpt.common.utility.MethodSignature;
import org.eclipse.jpt.common.utility.internal.SimpleJavaType;
import org.eclipse.jpt.common.utility.internal.SimpleMethodSignature;
@SuppressWarnings("nls")
public class MethodSignatureTests extends TestCase {
public MethodSignatureTests(String name) {
super(name);
}
public void testInvalidNameNull() throws Exception {
boolean exCaught = false;
try {
MethodSignature methodSignature = new SimpleMethodSignature((String) null);
fail("invalid MethodSignature: " + methodSignature);
} catch (IllegalArgumentException ex) {
exCaught = true;
}
assertTrue(exCaught);
}
public void testInvalidNameEmpty() throws Exception {
boolean exCaught = false;
try {
MethodSignature methodSignature = new SimpleMethodSignature("");
fail("invalid MethodSignature: " + methodSignature);
} catch (IllegalArgumentException ex) {
exCaught = true;
}
assertTrue(exCaught);
}
public void testInvalidParameterTypesNull() throws Exception {
boolean exCaught = false;
try {
MethodSignature methodSignature = new SimpleMethodSignature("foo", (JavaType[]) null);
fail("invalid MethodSignature: " + methodSignature);
} catch (IllegalArgumentException ex) {
exCaught = true;
}
assertTrue(exCaught);
}
public void testInvalidParameterTypesNullItem() throws Exception {
boolean exCaught = false;
try {
MethodSignature methodSignature = new SimpleMethodSignature("foo", new JavaType[1]);
fail("invalid MethodSignature: " + methodSignature);
} catch (IllegalArgumentException ex) {
exCaught = true;
}
assertTrue(exCaught);
}
public void testInvalidParameterTypesVoidItem() throws Exception {
JavaType jt = new SimpleJavaType(void.class.getName());
boolean exCaught = false;
try {
MethodSignature methodSignature = new SimpleMethodSignature("foo", new JavaType[] {jt});
fail("invalid MethodSignature: " + methodSignature);
} catch (IllegalArgumentException ex) {
exCaught = true;
}
assertTrue(exCaught);
}
public void testInvalidParameterTypeNamesNull() throws Exception {
boolean exCaught = false;
try {
MethodSignature methodSignature = new SimpleMethodSignature("foo", (String[]) null);
fail("invalid MethodSignature: " + methodSignature);
} catch (IllegalArgumentException ex) {
exCaught = true;
}
assertTrue(exCaught);
}
public void testInvalidParameterTypeNamesNullItem() throws Exception {
boolean exCaught = false;
try {
MethodSignature methodSignature = new SimpleMethodSignature("foo", new String[1]);
fail("invalid MethodSignature: " + methodSignature);
} catch (IllegalArgumentException ex) {
exCaught = true;
}
assertTrue(exCaught);
}
public void testInvalidParameterJavaClassesNull() throws Exception {
boolean exCaught = false;
try {
MethodSignature methodSignature = new SimpleMethodSignature("foo", (Class<?>[]) null);
fail("invalid MethodSignature: " + methodSignature);
} catch (IllegalArgumentException ex) {
exCaught = true;
}
assertTrue(exCaught);
}
public void testInvalidParameterJavaClassesNullItem() throws Exception {
boolean exCaught = false;
try {
MethodSignature methodSignature = new SimpleMethodSignature("foo", new Class[1]);
fail("invalid MethodSignature: " + methodSignature);
} catch (IllegalArgumentException ex) {
exCaught = true;
}
assertTrue(exCaught);
}
public void testGetSignature0() throws Exception {
MethodSignature ms = new SimpleMethodSignature(this.getMethod("method0"));
assertEquals("method0()", ms.getSignature());
}
public void testGetSignature1() throws Exception {
MethodSignature ms = new SimpleMethodSignature(this.getMethod("method1"));
assertEquals("method1(int)", ms.getSignature());
}
public void testGetSignature2() throws Exception {
MethodSignature ms = new SimpleMethodSignature(this.getMethod("method2"));
assertEquals("method2(int, java.lang.String)", ms.getSignature());
}
public void testGetSignature3() throws Exception {
MethodSignature ms = new SimpleMethodSignature(this.getMethod("method3"));
assertEquals("method3(int, java.lang.String, java.lang.Object[][])", ms.getSignature());
}
public void testGetName() throws Exception {
MethodSignature ms = new SimpleMethodSignature(this.getMethod("method2"));
assertEquals("method2", ms.getName());
}
public void testGetParameterTypes() throws Exception {
MethodSignature ms = new SimpleMethodSignature(this.getMethod("method3"));
JavaType[] expected = new JavaType[3];
expected[0] = new SimpleJavaType("int");
expected[1] = new SimpleJavaType("java.lang.String");
expected[2] = new SimpleJavaType("java.lang.Object", 2);
assertTrue(Arrays.equals(expected, ms.getParameterTypes()));
}
public void testEquals() throws Exception {
Object ms1 = new SimpleMethodSignature(this.getMethod("method3"));
Object ms2 = new SimpleMethodSignature(this.getMethod("method3"));
assertNotSame(ms1, ms2);
assertEquals(ms1, ms1);
assertEquals(ms1, ms2);
assertEquals(ms1.hashCode(), ms2.hashCode());
Object ms3 = new SimpleMethodSignature(this.getMethod("method2"));
assertNotSame(ms1, ms3);
assertFalse(ms1.equals(ms3));
}
public void testClone() throws Exception {
SimpleMethodSignature ms1 = new SimpleMethodSignature(this.getMethod("method3"));
SimpleMethodSignature ms2 = (SimpleMethodSignature) ms1.clone();
assertNotSame(ms1, ms2);
assertEquals(ms1, ms2);
}
public void testSerialization() throws Exception {
SimpleMethodSignature ms1 = new SimpleMethodSignature(this.getMethod("method3"));
SimpleMethodSignature ms2 = TestTools.serialize(ms1);
assertNotSame(ms1, ms2);
assertEquals(ms1, ms2);
}
private Method getMethod(String methodName) {
for (Method method : this.getClass().getMethods()) {
if (method.getName().equals(methodName)) {
return method;
}
}
throw new IllegalArgumentException("method not found: " + methodName);
}
public void method0() { /* used by tests */ }
@SuppressWarnings("unused") public void method1(int foo) { /* used by tests */ }
@SuppressWarnings("unused") public void method2(int foo, String bar) { /* used by tests */ }
@SuppressWarnings("unused") public void method3(int foo, String bar, Object[][] baz) { /* used by tests */ }
@SuppressWarnings("unused") public void methodA(int foo, String bar) { /* used by tests */ }
@SuppressWarnings("unused") public void methodA(int foo, String bar, String baz) { /* used by tests */ }
@SuppressWarnings("unused") public void methodB(int foo, Object bar) { /* used by tests */ }
@SuppressWarnings("unused") public void methodB(int foo, String bar) { /* used by tests */ }
}
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