/*******************************************************************************
 *  Copyright (c) 2000, 2013 IBM Corporation and others.
 *
 *  This program and the accompanying materials
 *  are made available under the terms of the Eclipse Public License 2.0
 *  which accompanies this distribution, and is available at
 *  https://www.eclipse.org/legal/epl-2.0/
 *
 *  SPDX-License-Identifier: EPL-2.0
 *
 *  Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.jdt.debug.tests.breakpoints;

import org.eclipse.jdt.core.ICompilationUnit;
import org.eclipse.jdt.core.IType;
import org.eclipse.jdt.debug.core.IJavaDebugTarget;
import org.eclipse.jdt.debug.core.IJavaThread;
import org.eclipse.jdt.debug.tests.AbstractDebugTest;
import org.eclipse.jdt.internal.debug.ui.IJDIPreferencesConstants;
import org.eclipse.jdt.internal.debug.ui.JDIDebugUIPlugin;
import org.eclipse.jface.preference.IPreferenceStore;

/**
 * Home for breakpoint tests that don't fit elsewhere
 */
public class MiscBreakpointsTests extends AbstractDebugTest {

	private static final String COMPILE_ERROR_CONTENTS =
	 "public class CompileError {\npublic static void main(String[] args) {\nString foo = \"foo\" + bar;\n}	\n}";

	private static final String ORIGINAL_CONTENTS = "public class CompileError {\npublic static void main(String[] args) {\n}\n}";

	/**
	 * Constructor
	 * @param name
	 */
	public MiscBreakpointsTests(String name) {
		super(name);
	}

	/**
	 * This method DEPENDS on the default setting of the 'suspend on uncaught exceptions'
	 * preference being TRUE.
	 * @throws Exception
	 */
	public void testSuspendOnUncaughtExceptions() throws Exception {
		String typeName = "ThrowsNPE";
		getPrefStore().setValue(IJDIPreferencesConstants.PREF_SUSPEND_ON_UNCAUGHT_EXCEPTIONS, true);

		IJavaThread javaThread = null;
		try {
			javaThread= launchAndSuspend(typeName);

			int stackLine = javaThread.getTopStackFrame().getLineNumber();
			assertEquals("line number should be '29', but was " + stackLine, 29, stackLine);

		} finally {
            getPrefStore().setValue(IJDIPreferencesConstants.PREF_SUSPEND_ON_UNCAUGHT_EXCEPTIONS, false);
			terminateAndRemove(javaThread);
			removeAllBreakpoints();
		}
	}

	/**
	 * This method DEPENDS on the default setting of the 'suspend on compilation errors'
	 * preference being TRUE.
	 * @throws Exception
	 */
	public void testSuspendOnCompilationErrors() throws Exception {
		String typeName = "CompileError";
		getPrefStore().setValue(IJDIPreferencesConstants.PREF_SUSPEND_ON_UNCAUGHT_EXCEPTIONS, false);
		getPrefStore().setValue(IJDIPreferencesConstants.PREF_SUSPEND_ON_COMPILATION_ERRORS, true);

		IType type = get14Project().findType(typeName);
		ICompilationUnit cu = type.getCompilationUnit();
		setFileContents(cu, COMPILE_ERROR_CONTENTS);

		IJavaThread javaThread = null;
		try {
			javaThread= launchAndSuspend(typeName);

			int stackLine = javaThread.getTopStackFrame().getLineNumber();
			assertEquals("line number should be '3', but was " + stackLine, 3, stackLine);

		} finally {
            getPrefStore().setValue(IJDIPreferencesConstants.PREF_SUSPEND_ON_UNCAUGHT_EXCEPTIONS, false);
            getPrefStore().setValue(IJDIPreferencesConstants.PREF_SUSPEND_ON_COMPILATION_ERRORS, false);
			terminateAndRemove(javaThread);
			removeAllBreakpoints();
			//restore the file to remove compile errors
			setFileContents(cu, ORIGINAL_CONTENTS);
		}
	}

	/**
	 * Tests that the program will not suspend on uncaught exceptions or errors if the corresponding
	 * preferences are set to false
	 * @throws Exception
	 */
	public void testDontSuspendOnCompilationErrors() throws Exception {
		String typeName = "CompileError";
		getPrefStore().setValue(IJDIPreferencesConstants.PREF_SUSPEND_ON_UNCAUGHT_EXCEPTIONS, false);
		getPrefStore().setValue(IJDIPreferencesConstants.PREF_SUSPEND_ON_COMPILATION_ERRORS, false);

		IType type = get14Project().findType(typeName);
		ICompilationUnit cu = type.getCompilationUnit();
		setFileContents(cu, COMPILE_ERROR_CONTENTS);

		IJavaDebugTarget debugTarget = null;
		try {
			debugTarget= launchAndTerminate(typeName);
		} finally {
			terminateAndRemove(debugTarget);
			removeAllBreakpoints();
			setFileContents(cu, ORIGINAL_CONTENTS);
		}
	}

	/**
	 * Tests that the program will not suspend on uncaught exceptions if the corresponding
	 * preference is set to false
	 * @throws Exception
	 */
	public void testDontSuspendOnUncaughtExceptions() throws Exception {
		String typeName = "ThrowsNPE";
		getPrefStore().setValue(IJDIPreferencesConstants.PREF_SUSPEND_ON_UNCAUGHT_EXCEPTIONS, false);

		IJavaDebugTarget debugTarget= null;
		try {
			debugTarget = launchAndTerminate(typeName);
		} finally {
			terminateAndRemove(debugTarget);
			removeAllBreakpoints();
		}
	}

	/**
	 * Returns the <code>JDIDebugUIPlugin</code> preference store
	 * @return
	 */
	protected IPreferenceStore getPrefStore() {
		return JDIDebugUIPlugin.getDefault().getPreferenceStore();
	}
}