/*******************************************************************************
 * Copyright (c) 2000, 2005 IBM Corporation and others.
 * 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:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.jdt.debug.tests.breakpoints;

import org.eclipse.debug.core.model.IVariable;
import org.eclipse.jdt.debug.core.IJavaLineBreakpoint;
import org.eclipse.jdt.debug.core.IJavaPrimitiveValue;
import org.eclipse.jdt.debug.core.IJavaStackFrame;
import org.eclipse.jdt.debug.core.IJavaThread;
import org.eclipse.jdt.debug.tests.AbstractDebugTest;

/**
 * Tests conditional breakpoints.
 */
public class ConditionalBreakpointsTests extends AbstractDebugTest {
	
	/**
	 * Constructor
	 * @param name
	 */
	public ConditionalBreakpointsTests(String name) {
		super(name);
	}

	/**
	 * Tests a breakpoint with a simple condition
	 * @throws Exception
	 */
	public void testSimpleConditionalBreakpoint() throws Exception {
		String typeName = "HitCountLooper";
		IJavaLineBreakpoint bp = createConditionalLineBreakpoint(16, typeName, "i == 3", true);
		
		IJavaThread thread= null;
		try {
			thread= launchToLineBreakpoint(typeName, bp);

			IJavaStackFrame frame = (IJavaStackFrame)thread.getTopStackFrame();
			IVariable var = findVariable(frame, "i");
			assertNotNull("Could not find variable 'i'", var);
			
			IJavaPrimitiveValue value = (IJavaPrimitiveValue)var.getValue();
			assertNotNull("variable 'i' has no value", value);
			int iValue = value.getIntValue();
			assertTrue("value of 'i' should be '3', but was " + iValue, iValue == 3);
			
			bp.delete();
		} finally {
			terminateAndRemove(thread);
			removeAllBreakpoints();
		}		
	}

	/**
	 * Tests a static method call that has a conditional breakpoint on it
	 * @throws Exception
	 */
	public void testStaticMethodCallConditionalBreakpoint() throws Exception {
		String typeName = "HitCountLooper";
		IJavaLineBreakpoint bp = createConditionalLineBreakpoint(16, typeName, "ArgumentsTests.fact(i) == 24", true);
		
		IJavaThread thread= null;
		try {
			thread= launchToLineBreakpoint(typeName, bp);

			IJavaStackFrame frame = (IJavaStackFrame)thread.getTopStackFrame();
			IVariable var = findVariable(frame, "i");
			assertNotNull("Could not find variable 'i'", var);
			
			IJavaPrimitiveValue value = (IJavaPrimitiveValue)var.getValue();
			assertNotNull("variable 'i' has no value", value);
			int iValue = value.getIntValue();
			assertTrue("value of 'i' should be '4', but was " + iValue, iValue == 4);
			
			bp.delete();
		} finally {
			terminateAndRemove(thread);
			removeAllBreakpoints();
		}		
	}

	/**
	 * Tests a simple conditional breakpoint that gets hit when a change is made
	 * @throws Exception
	 */
	public void testSimpleConditionalBreakpointSuspendOnChange() throws Exception {
		String typeName = "HitCountLooper";
		IJavaLineBreakpoint bp = createConditionalLineBreakpoint(16, typeName, "i != 9", false);
		
		IJavaThread thread= null;
		try {
			thread= launchToLineBreakpoint(typeName, bp);

			IJavaStackFrame frame = (IJavaStackFrame)thread.getTopStackFrame();
			IVariable var = findVariable(frame, "i");
			assertNotNull("Could not find variable 'i'", var);
			
			IJavaPrimitiveValue value = (IJavaPrimitiveValue)var.getValue();
			assertNotNull("variable 'i' has no value", value);
			int iValue = value.getIntValue();
			assertEquals(0, iValue);
			
			resumeToLineBreakpoint(thread, bp);
			
			frame = (IJavaStackFrame)thread.getTopStackFrame();
			var = findVariable(frame, "i");
			assertNotNull("Could not find variable 'i'", var);
			
			value = (IJavaPrimitiveValue)var.getValue();
			assertNotNull("variable 'i' has no value", value);
			iValue = value.getIntValue();
			assertEquals(9, iValue);
			
			bp.delete();
		} finally {
			terminateAndRemove(thread);
			removeAllBreakpoints();
		}		
	}

	/**
	 * Tests a conditional step return
	 * @throws Exception
	 */
	public void testConditionalStepReturn() throws Exception {
		String typeName = "ConditionalStepReturn";
		IJavaLineBreakpoint lineBreakpoint = createLineBreakpoint(17, typeName);
		createConditionalLineBreakpoint(18, typeName, "!bool", true);
		
		IJavaThread thread= null;
		try {
			thread= launchToLineBreakpoint(typeName, lineBreakpoint);
			thread = stepReturn((IJavaStackFrame)thread.getTopStackFrame());
			// should not have suspended at breakpoint
			IJavaStackFrame frame = (IJavaStackFrame)thread.getTopStackFrame();
			assertEquals("Should be in main", "main", frame.getMethodName());
		} finally {
			terminateAndRemove(thread);
			removeAllBreakpoints();
		}		
	}

}