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/* *******************************************************************
* Copyright (c) 2002 Palo Alto Research Center, Incorporated (PARC).
* 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:
* PARC initial implementation
* ******************************************************************/
package org.aspectj.weaver.patterns;
import org.aspectj.bridge.AbortException;
import org.aspectj.weaver.World;
import org.aspectj.weaver.patterns.BindingTypePattern;
import org.aspectj.weaver.patterns.Bindings;
import org.aspectj.weaver.patterns.PatternParser;
import org.aspectj.weaver.patterns.Pointcut;
import org.aspectj.weaver.patterns.TestScope;
import org.aspectj.weaver.reflect.ReflectionWorld;
public class BindingTestCase extends PatternsTestCase {
public World getWorld() {
return new ReflectionWorld(true, this.getClass().getClassLoader());
}
public void testResolveBindings() {
BindingTypePattern at = new BindingTypePattern(world.resolve("java.lang.Object"), 0, false);
BindingTypePattern bt = new BindingTypePattern(world.resolve("java.lang.Object"), 1, false);
BindingTypePattern[] all = new BindingTypePattern[] { at, bt };
BindingTypePattern[] none = new BindingTypePattern[] { null, null };
BindingTypePattern[] a = new BindingTypePattern[] { at, null };
BindingTypePattern[] b = new BindingTypePattern[] { null, bt };
checkBindings("this(b)", b);
checkBindings("this(java.lang.String)", none);
checkBindings("this(*)", none);
checkBindings("this(a)", a);
try {
checkBindings("args(.., a,..,b)", all);
// checkBindings("args(a,..,b, ..)", all);
fail("shouldn't be implemented yet");
} catch (Throwable ae) {
// // diff world implementations may exit by different means
// } catch (Exception e) {
// // diff world implementations may exit by different means
}
checkBindings("args(a,..,b)", all);
checkBindings("args(b)", b);
checkBindings("args()", none);
checkBindings("this(a) && this(b)", all);
checkBindingFailure("this(a) && this(a)", "multiple");
// checkBindingFailure("this(a) && this(b)");
checkBindingFailure("this(a) || this(b)", "inconsistent");
checkBindingFailure("this(java.lang.String) || this(b)", "inconsistent");
checkBindingFailure("this(a) || this(java.lang.String)", "inconsistent");
checkBindings("this(a) || this(a)", a);
checkBindings("!this(java.lang.String)", none);
checkBindings("!this(java.lang.String) && this(a)", a);
checkBindingFailure("!this(a)", "negation");
// checkBindingFailure("this(a)");
checkBindings("cflow(this(a))", a);
checkBindings("cflow(this(a)) && this(b)", all);
checkBindingFailure("cflow(this(a)) || this(b)", "inconsistent");
checkBindingFailure("cflow(this(a)) && this(a)", "multiple");
checkBindingFailure("!cflow(this(a))", "negation");
// todo
// this should fail since a isn't visible to if
// checkBindingFailure("cflow(if(a != null)) && this(a)");
// checkBinding("cflow(if(a != null) && this(a))", a);
}
/**
* Method checkBindingFailure. (assumes an env where "a" and "b" are formals).
*
* @param string
*/
private void checkBindingFailure(String pattern, String prefix) {
PatternParser parser = new PatternParser(pattern);
Pointcut p = parser.parsePointcut();
Bindings actualBindings = new Bindings(2);
try {
p.resolveBindings(makeSimpleScope(), actualBindings);
} catch (AbortException re) {
assertEquals(prefix, re.getIMessage().getMessage().substring(0, prefix.length()));
// System.out.println("expected exception: " + re);
return;
} catch (Throwable t) {
assertTrue(prefix, t.getMessage().indexOf(prefix) != -1);
return;
}
assertTrue("should have failed", false);
}
/**
* Method checkBindings.
*
* @param string
* @param i
*/
private void checkBindings(String pattern, BindingTypePattern[] expectedBindings) {
PatternParser parser = new PatternParser(pattern);
Pointcut p = parser.parsePointcut();
Bindings actualBindings = new Bindings(expectedBindings.length);
TestScope simpleScope = makeSimpleScope();
p.resolveBindings(simpleScope, actualBindings);
// System.out.println(actualBindings);
new Bindings(expectedBindings).checkEquals(actualBindings, simpleScope);
}
public TestScope makeSimpleScope() {
return new TestScope(new String[] { "int", "java.lang.String" }, new String[] { "a", "b" }, world);
}
}
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