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// Tags: JDK1.2
// Uses: getBeanInfoTestClass
//Copyright (C) 2004 Robert Schuster <theBohemian@gmx.net>
//Mauve is free software; you can redistribute it and/or modify
//it under the terms of the GNU General Public License as published by
//the Free Software Foundation; either version 2, or (at your option)
//any later version.
//Mauve is distributed in the hope that it will be useful,
//but WITHOUT ANY WARRANTY; without even the implied warranty of
//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
//GNU General Public License for more details.
//You should have received a copy of the GNU General Public License
//along with Mauve; see the file COPYING. If not, write to
//the Free Software Foundation, 59 Temple Place - Suite 330,
//Boston, MA 02111-1307, USA. */
package gnu.testlet.java.beans.Introspector;
import gnu.testlet.TestHarness;
import gnu.testlet.Testlet;
import java.beans.BeanInfo;
import java.beans.IntrospectionException;
import java.beans.Introspector;
import java.beans.MethodDescriptor;
import java.lang.reflect.Method;
/** This tests the <strong>method</strong> retrieving mechanism of the
* Introspector class.
*
* <p>See {@link getBeanInfoTestClass} for details on what is
* expected.</p>
*
* <p>The method test goes like this:</p>
* <p>There is a test class having a number of well-known methods. All
* <code>public</code> methods should be available in a
* <code>MethodDescriptor</code> array. There are two methods
* which are not <code>public</code> and these should not be
* available in the array.</p>
*
* @author Robert Schuster <theBohemian@gmx.net>
*/
public class getBeanInfo2 implements Testlet
{
public void test(TestHarness harness)
{
propertyTest(harness);
}
void propertyTest(TestHarness harness)
{
BeanInfo bi = null;
Class testClass = getBeanInfoTestClass.class;
Method[] expectedMethods = null;
Method[] unexpectedMethods = null;
try
{
// these are the method that have to show up
expectedMethods =
new Method[] {
testClass.getMethod(
"setCorrectProperty",
new Class[] { Integer.TYPE }),
testClass.getMethod("getCorrectProperty", new Class[0]),
testClass.getMethod(
"getCorrectReadOnlyProperty",
new Class[0]),
testClass.getMethod(
"setCorrectWriteOnlyProperty",
new Class[] { Integer.TYPE }),
testClass.getMethod(
"setSomeStaticValue",
new Class[] { Integer.TYPE }),
testClass.getMethod("getSomeStaticValue", new Class[0]),
};
/* these are the method that have not to show up - it is neccessary to use
* getDeclaredMethod() here because the wanted methods are not public.
*/
unexpectedMethods =
new Method[] {
testClass.getDeclaredMethod(
"setSomeValue",
new Class[] { Integer.TYPE }),
testClass.getDeclaredMethod("getSomeValue", new Class[0]),
};
}
catch (NoSuchMethodException nsme)
{
// if that happens check the test class (compiler?)
harness.fail("TEST_PREPARATION_NOSUCHMETHODEXCEPTION");
}
// checks wether all expected methods have been retrieved successfully
for (int i = 0; i < expectedMethods.length; i++)
{
harness.check(
expectedMethods[i] != null,
"TEST_PREPARATION_METHOD_INSTANCE_AVAILABLE");
}
// checks wether all unexpected methods have been retrieved successfully
for (int i = 0; i < unexpectedMethods.length; i++)
{
harness.check(
unexpectedMethods[i] != null,
"TEST_PREPARATION_METHOD_INSTANCE_AVAILABLE");
}
// retrieves the BeanInfo instance of the test class
try
{
bi = Introspector.getBeanInfo(testClass, testClass.getSuperclass());
}
catch (IntrospectionException ie)
{
harness.fail("TEST_PREPARATION_INTROSPECTION_EXCEPTION");
}
harness.check(bi != null, "TEST_PREPARATION_VALID_BEANINFO");
MethodDescriptor[] methodDescriptors = bi.getMethodDescriptors();
// Since we only introspected the test class the number of method descriptors must match
// the number of expected methods.
harness.check(
methodDescriptors.length,
expectedMethods.length,
"MATCH_EXPECTED_METHOD_COUNT");
for (int i = 0; i < expectedMethods.length; i++)
{
harness.check(
containsMethod(methodDescriptors, expectedMethods[i]),
"EXPECTED_METHOD_AVAILABLE: " + expectedMethods[i].getName());
}
for (int i = 0; i < unexpectedMethods.length; i++)
{
harness.check(
!containsMethod(methodDescriptors, unexpectedMethods[i]),
"UNEXPECTED_METHOD_UNAVAILABE: "
+ unexpectedMethods[i].getName());
}
}
/** Returns whether a given method array contains a certain method.
*
* @param methods The array of method to be examined.
* @param key The method which is looked up.
* @return Whether the key method is in the array.
*/
boolean containsMethod(MethodDescriptor[] methodDescriptors, Method key)
{
for (int i = 0; i < methodDescriptors.length; i++)
{
if (key.equals(methodDescriptors[i].getMethod()))
return true;
}
return false;
}
}
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