/* *******************************************************************
 * Copyright (c) 2004 IBM Corporation.
 * 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 
 *  
 * ******************************************************************/
package org.aspectj.weaver.patterns;

import junit.framework.TestCase;

import org.aspectj.bridge.AbortException;
import org.aspectj.util.LangUtil;
import org.aspectj.weaver.AnnotatedElement;
import org.aspectj.weaver.AnnotationAJ;
import org.aspectj.weaver.WeaverTestCase;
import org.aspectj.weaver.ResolvedType;
import org.aspectj.weaver.UnresolvedType;
import org.aspectj.weaver.bcel.BcelWorld;

public class AnnotationPatternTestCase extends TestCase {

	public void testParseSimpleAnnotationPattern() {
		PatternParser p = new PatternParser("@Foo");
		AnnotationTypePattern foo = p.maybeParseAnnotationPattern();
		foo = foo.resolveBindings(makeSimpleScope(), new Bindings(3), true);
		assertTrue("ExactAnnotationTypePattern", foo instanceof ExactAnnotationTypePattern);
		assertEquals("Foo", UnresolvedType.forSignature("LFoo;"), ((ExactAnnotationTypePattern) foo).annotationType);
	}

	public void testParseAndAnnotationPattern() {
		PatternParser p = new PatternParser("@Foo @Goo");
		AnnotationTypePattern fooAndGoo = p.maybeParseAnnotationPattern();
		assertTrue("AndAnnotationTypePattern", fooAndGoo instanceof AndAnnotationTypePattern);
		assertEquals("@(Foo) @(Goo)", fooAndGoo.toString());
		fooAndGoo = fooAndGoo.resolveBindings(makeSimpleScope(), new Bindings(3), true);
		assertEquals("@Foo @Goo", fooAndGoo.toString());
		AnnotationTypePattern left = ((AndAnnotationTypePattern) fooAndGoo).getLeft();
		AnnotationTypePattern right = ((AndAnnotationTypePattern) fooAndGoo).getRight();
		assertEquals("Foo", UnresolvedType.forSignature("LFoo;"), ((ExactAnnotationTypePattern) left).annotationType);
		assertEquals("Goo", UnresolvedType.forSignature("LGoo;"), ((ExactAnnotationTypePattern) right).annotationType);
	}

	//
	// public void testParseOrAnnotationPattern() {
	// PatternParser p = new PatternParser("@Foo || @Goo");
	// AnnotationTypePattern fooOrGoo = p.parseAnnotationTypePattern();
	// assertTrue("OrAnnotationTypePattern",fooOrGoo instanceof
	// OrAnnotationTypePattern);
	// assertEquals("(@Foo || @Goo)",fooOrGoo.toString());
	// AnnotationTypePattern left =
	// ((OrAnnotationTypePattern)fooOrGoo).getLeft();
	// AnnotationTypePattern right =
	// ((OrAnnotationTypePattern)fooOrGoo).getRight();
	// assertEquals("Foo",UnresolvedType.forName("Foo"),((
	// ExactAnnotationTypePattern)left).annotationType);
	// assertEquals("Goo",UnresolvedType.forName("Goo"),((
	// ExactAnnotationTypePattern)right).annotationType);
	// }
	//	
	public void testParseNotAnnotationPattern() {
		PatternParser p = new PatternParser("!@Foo");
		AnnotationTypePattern notFoo = p.maybeParseAnnotationPattern();
		assertTrue("NotAnnotationTypePattern", notFoo instanceof NotAnnotationTypePattern);
		notFoo = notFoo.resolveBindings(makeSimpleScope(), new Bindings(3), true);
		assertEquals("!@Foo", notFoo.toString());
		AnnotationTypePattern body = ((NotAnnotationTypePattern) notFoo).getNegatedPattern();
		assertEquals("Foo", UnresolvedType.forName("Foo"), ((ExactAnnotationTypePattern) body).annotationType);
	}

	public void testParseBracketedAnnotationPattern() {
		PatternParser p = new PatternParser("(@Foo)");
		AnnotationTypePattern foo = p.maybeParseAnnotationPattern();
		// cannot start with ( so, we get ANY
		assertEquals("ANY", AnnotationTypePattern.ANY, foo);
	}

	public void testParseFQAnnPattern() {
		PatternParser p = new PatternParser("@org.aspectj.Foo");
		AnnotationTypePattern foo = p.maybeParseAnnotationPattern();
		assertEquals("@(org.aspectj.Foo)", foo.toString());
	}

	public void testParseComboPattern() {
		// PatternParser p = new PatternParser("!((@Foo || @Goo) && !@Boo)");
		PatternParser p = new PatternParser("@(Foo || Goo)!@Boo");
		AnnotationTypePattern ap = p.maybeParseAnnotationPattern();
		ap = ap.resolveBindings(makeSimpleScope(), new Bindings(3), true);
		AndAnnotationTypePattern atp = (AndAnnotationTypePattern) ap;
		NotAnnotationTypePattern notBoo = (NotAnnotationTypePattern) atp.getRight();
		// ExactAnnotationTypePattern boo = (ExactAnnotationTypePattern)
		notBoo.getNegatedPattern();
		// AnnotationTypePattern fooOrGoo = (AnnotationTypePattern)
		atp.getLeft();
		assertEquals("@((Foo || Goo)) !@Boo", ap.toString());
	}

	// public void testParseAndOrPattern() {
	// PatternParser p = new PatternParser("@Foo && @Boo || @Goo");
	// AnnotationTypePattern andOr = p.parseAnnotationTypePattern();
	// assertTrue("Should be or pattern",andOr instanceof
	// OrAnnotationTypePattern);
	// }
	//	
	public void testParseBadPattern() {
		PatternParser p = new PatternParser("@@Foo");
		try {
			p.maybeParseAnnotationPattern();
			fail("ParserException expected");
		} catch (ParserException pEx) {
			assertEquals("name pattern", pEx.getMessage());
		}
	}

	public void testParseBadPattern2() {
		PatternParser p = new PatternParser("Foo");
		AnnotationTypePattern bad = p.maybeParseAnnotationPattern();
		assertEquals("ANY", AnnotationTypePattern.ANY, bad);
	}

	public void testParseNameOrVarAnnotationPattern() {
		PatternParser p = new PatternParser("Foo");
		AnnotationTypePattern foo = p.parseAnnotationNameOrVarTypePattern();
		assertTrue("ExactAnnotationTypePattern expected", foo != null);
		assertEquals("Foo", UnresolvedType.forName("Foo"), ((ExactAnnotationTypePattern) foo).annotationType);
	}

	public void testParseNameOrVarAnnotationPatternWithNot() {
		PatternParser p = new PatternParser("!@Foo");
		try {
			// AnnotationTypePattern bad =
			p.parseAnnotationNameOrVarTypePattern();
			fail("ParserException expected");
		} catch (ParserException pEx) {
			assertEquals("identifier", pEx.getMessage());
		}
	}

	public void testParseNameOrVarAnnotationPatternWithOr() {
		PatternParser p = new PatternParser("Foo || Boo");
		AnnotationTypePattern foo = p.parseAnnotationNameOrVarTypePattern();
		// rest of pattern not consumed...
		assertTrue("ExactAnnotationTypePattern", foo instanceof ExactAnnotationTypePattern);
		assertEquals("Foo", UnresolvedType.forName("Foo"), ((ExactAnnotationTypePattern) foo).annotationType);
	}

	public void testParseNameOrVarAnnotationWithBinding() {
		PatternParser p = new PatternParser("foo");
		AnnotationTypePattern foo = p.parseAnnotationNameOrVarTypePattern();
		assertTrue("ExactAnnotationTypePattern", foo instanceof ExactAnnotationTypePattern);
		assertEquals("@foo", ((ExactAnnotationTypePattern) foo).toString());
	}

	public void testParseNameOrVarAnnotationPatternWithAnd() {
		PatternParser p = new PatternParser("Foo Boo");
		AnnotationTypePattern foo = p.parseAnnotationNameOrVarTypePattern();
		// rest of pattern not consumed...
		assertEquals("@Foo", foo.toString());
	}

	public void testMaybeParseAnnotationPattern() {
		PatternParser p = new PatternParser("@Foo");
		AnnotationTypePattern a = p.maybeParseAnnotationPattern();
		assertNotNull("Should find annotation pattern", a);
		p = new PatternParser("Foo && Boo");
		a = p.maybeParseAnnotationPattern();
		assertEquals("Should be ANY pattern for a non-match", AnnotationTypePattern.ANY, a);
	}

	public void testParseTypePatternsWithAnnotations() {
		PatternParser p = new PatternParser("@Foo *");
		TypePattern t = p.parseTypePattern();
		assertTrue("AnyWithAnnotationTypePattern", t instanceof AnyWithAnnotationTypePattern);
		AnnotationTypePattern atp = t.annotationPattern;
		assertEquals("@(Foo)", atp.toString());
		assertEquals("(@(Foo) *)", t.toString());
	}

	public void testParseTypePatternsWithAnnotationsComplex() {
		PatternParser p = new PatternParser("(@(Foo || Boo) (Foo || Boo))");
		TypePattern t = p.parseTypePattern();
		assertTrue("OrTypePattern", t instanceof OrTypePattern);
		assertEquals("((@((Foo || Boo)) Foo) || (@((Foo || Boo)) Boo))", t.toString());
	}

	public void testNotSyntax() {
		PatternParser p = new PatternParser("!@Foo (Foo || Boo))");
		TypePattern t = p.parseTypePattern();
		assertTrue("OrTypePattern", t instanceof OrTypePattern);
		assertEquals("((!@(Foo) Foo) || (!@(Foo) Boo))", t.toString());
	}

	public void testParseMethodOrConstructorSigNoAP() {
		PatternParser p = new PatternParser("* *.*(..)");
		SignaturePattern s = p.parseMethodOrConstructorSignaturePattern();
		assertEquals("Any annotation", AnnotationTypePattern.ANY, s.getAnnotationPattern());
		assertEquals("Any return", "*", s.getReturnType().toString());
		assertEquals("Any dec type", "*", s.getDeclaringType().toString());
		assertEquals("Any name", "*", s.getName().toString());
		assertEquals("* *.*(..)", s.toString());
	}

	public void testParseMethodOrConstructorSigSimpleAP() {
		PatternParser p = new PatternParser("@Foo * *.*(..)");
		SignaturePattern s = p.parseMethodOrConstructorSignaturePattern();
		assertEquals("@(Foo) annotation", "@(Foo)", s.getAnnotationPattern().toString());
		assertEquals("Any return", "*", s.getReturnType().toString());
		assertEquals("Any dec type", "*", s.getDeclaringType().toString());
		assertEquals("Any name", "*", s.getName().toString());
		assertEquals("@(Foo) * *.*(..)", s.toString());
	}

	public void testParseMethodOrConstructorSigComplexAP() {
		PatternParser p = new PatternParser("!@(Foo || Goo) * *.*(..)");
		SignaturePattern s = p.parseMethodOrConstructorSignaturePattern();
		assertEquals("complex annotation", "!@((Foo || Goo))", s.getAnnotationPattern().toString());
		assertEquals("Any return", "*", s.getReturnType().toString());
		assertEquals("Any dec type", "*", s.getDeclaringType().toString());
		assertEquals("Any name", "*", s.getName().toString());
		assertEquals("!@((Foo || Goo)) * *.*(..)", s.toString());
	}

	public void testParseMethodFieldSigNoAP() {
		PatternParser p = new PatternParser("* *.*");
		SignaturePattern s = p.parseFieldSignaturePattern();
		assertEquals("Any annotation", AnnotationTypePattern.ANY, s.getAnnotationPattern());
		assertEquals("Any field type", "*", s.getReturnType().toString());
		assertEquals("Any dec type", "*", s.getDeclaringType().toString());
		assertEquals("Any name", "*", s.getName().toString());
		assertEquals("* *.*", s.toString());
	}

	public void testParseFieldSigSimpleAP() {
		PatternParser p = new PatternParser("@Foo * *.*");
		SignaturePattern s = p.parseFieldSignaturePattern();
		assertEquals("@Foo annotation", "@(Foo)", s.getAnnotationPattern().toString());
		assertEquals("Any field type", "*", s.getReturnType().toString());
		assertEquals("Any dec type", "*", s.getDeclaringType().toString());
		assertEquals("Any name", "*", s.getName().toString());
		assertEquals("@(Foo) * *.*", s.toString());
	}

	public void testParseFieldSigComplexAP() {
		PatternParser p = new PatternParser("!@(Foo || Goo) * *.*");
		SignaturePattern s = p.parseFieldSignaturePattern();
		assertEquals("complex annotation", "!@((Foo || Goo))", s.getAnnotationPattern().toString());
		assertEquals("Any field type", "*", s.getReturnType().toString());
		assertEquals("Any dec type", "*", s.getDeclaringType().toString());
		assertEquals("Any name", "*", s.getName().toString());
		assertEquals("!@((Foo || Goo)) * *.*", s.toString());
	}

	public void testExactAnnotationPatternMatching() {
		if (LangUtil.is15VMOrGreater()) {
			PatternParser p = new PatternParser("@Foo");
			AnnotationTypePattern ap = p.maybeParseAnnotationPattern();
			ap = ap.resolveBindings(makeSimpleScope(), new Bindings(3), true);
			AnnotatedElementImpl ae = new AnnotatedElementImpl(new String[] { "Foo" });
			assertTrue("matches element with Foo", ap.matches(ae).alwaysTrue());
			AnnotatedElementImpl ae2 = new AnnotatedElementImpl(new String[] { "Boo" });
			assertTrue("does not match element with Boo", ap.matches(ae2).alwaysFalse());
		}
	}

	public void testBindingAnnotationPatternMatching() {
		if (LangUtil.is15VMOrGreater()) {
			PatternParser p = new PatternParser("foo");
			AnnotationTypePattern ap = p.parseAnnotationNameOrVarTypePattern();
			try {
				ap = ap.resolveBindings(makeSimpleScope(), new Bindings(3), true);
			} catch (AbortException abEx) {
				assertEquals("Binding not supported in @pcds (1.5.0 M1 limitation): null", abEx.getMessage());
			}
			// uncomment these next lines once binding is supported
			// AnnotatedElementImpl ae = new AnnotatedElementImpl(new
			// String[]{"Foo"});
			// assertTrue("matches element with Foo",ap.matches(ae).alwaysTrue())
			// ;
			// AnnotatedElementImpl ae2 = new AnnotatedElementImpl(new
			// String[]{"Boo"});
			// assertTrue("does not match element with Boo",ap.matches(ae2).
			// alwaysFalse());
		}
	}

	public void testAndAnnotationPatternMatching() {
		if (LangUtil.is15VMOrGreater()) {
			PatternParser p = new PatternParser("@Foo @Boo");
			AnnotationTypePattern ap = p.maybeParseAnnotationPattern();
			ap = ap.resolveBindings(makeSimpleScope(), new Bindings(3), true);
			AnnotatedElementImpl ae = new AnnotatedElementImpl(new String[] { "Foo", "Boo" });
			assertTrue("matches foo and boo", ap.matches(ae).alwaysTrue());
			ae = new AnnotatedElementImpl(new String[] { "Foo" });
			assertTrue("does not match foo", ap.matches(ae).alwaysFalse());
			ae = new AnnotatedElementImpl(new String[] { "Boo" });
			assertTrue("does not match boo", ap.matches(ae).alwaysFalse());
			ae = new AnnotatedElementImpl(new String[] { "Goo" });
			assertTrue("does not match goo", ap.matches(ae).alwaysFalse());
		}
	}

	//	
	// public void testOrAnnotationPatternMatching() {
	// PatternParser p = new PatternParser("@Foo || @Boo");
	// AnnotationTypePattern ap = p.parseAnnotationTypePattern();
	// ap = ap.resolveBindings(makeSimpleScope(),new Bindings(3),true);
	// AnnotatedElementImpl ae = new AnnotatedElementImpl(new String[]
	// {"Foo","Boo"});
	// assertTrue("matches foo and boo",ap.matches(ae).alwaysTrue());
	// ae = new AnnotatedElementImpl(new String[] {"Foo"});
	// assertTrue("matches foo",ap.matches(ae).alwaysTrue());
	// ae = new AnnotatedElementImpl(new String[] {"Boo"});
	// assertTrue("matches boo",ap.matches(ae).alwaysTrue());
	// ae = new AnnotatedElementImpl(new String[] {"Goo"});
	// assertTrue("does not match goo",ap.matches(ae).alwaysFalse());
	// }
	//	
	public void testNotAnnotationPatternMatching() {
		if (LangUtil.is15VMOrGreater()) {
			PatternParser p = new PatternParser("!@Foo");
			AnnotationTypePattern ap = p.maybeParseAnnotationPattern();
			ap = ap.resolveBindings(makeSimpleScope(), new Bindings(3), true);
			AnnotatedElementImpl ae = new AnnotatedElementImpl(new String[] { "Foo", "Boo" });
			assertTrue("does not match foo and boo", ap.matches(ae).alwaysFalse());
			ae = new AnnotatedElementImpl(new String[] { "Boo" });
			assertTrue("matches boo", ap.matches(ae).alwaysTrue());
		}
	}

	public void testAnyAnnotationPatternMatching() {
		AnnotatedElementImpl ae = new AnnotatedElementImpl(new String[] { "Foo", "Boo" });
		assertTrue("always matches", AnnotationTypePattern.ANY.matches(ae).alwaysTrue());
		ae = new AnnotatedElementImpl(new String[] {});
		assertTrue("always matches", AnnotationTypePattern.ANY.matches(ae).alwaysTrue());
	}

	public TestScope makeSimpleScope() {
		BcelWorld bWorld = new BcelWorld(WeaverTestCase.TESTDATA_PATH + "/testcode.jar"); // testcode contains Foo/Boo/Goo/etc
		bWorld.setBehaveInJava5Way(true);
		return new TestScope(new String[] { "int", "java.lang.String", "Foo", "Boo", "Goo" }, new String[] { "a", "b", "foo",
				"boo", "goo" }, bWorld);
	}

	// put test cases for AnnotationPatternList matching in separate test
	// class...

	static class AnnotatedElementImpl implements AnnotatedElement {

		private String[] annotationTypes;

		public AnnotatedElementImpl(String[] annotationTypes) {
			this.annotationTypes = annotationTypes;
		}

		public boolean hasAnnotation(UnresolvedType ofType) {
			for (int i = 0; i < annotationTypes.length; i++) {
				if (annotationTypes[i].equals(ofType.getName())) {
					return true;
				}
			}
			return false;
		}

		/*
		 * (non-Javadoc)
		 * 
		 * @see org.aspectj.weaver.AnnotatedElement#getAnnotationTypes()
		 */
		public ResolvedType[] getAnnotationTypes() {
			// TODO Auto-generated method stub
			return null;
		}

		public AnnotationAJ getAnnotationOfType(UnresolvedType ofType) {
			// TODO Auto-generated method stub
			return null;
		}

	}
}
