/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
package org.mozilla.javascript.tests;
import org.junit.Assert;
import org.junit.Test;
import org.mozilla.javascript.Context;
import org.mozilla.javascript.ContextAction;
import org.mozilla.javascript.RhinoException;
import org.mozilla.javascript.ScriptableObject;
/**
* Unit tests for <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=549604">bug 549604</a>.
* This tests verify the properties of a JS exception and ensures that they don't change with different optimization levels.
*
* @author Marc Guillemot
*/
public class ErrorPropertiesTest {
final static String LS = System.getProperty("line.separator");
private void testScriptStackTrace(final String script, final String expectedStackTrace) {
testScriptStackTrace(script, expectedStackTrace, -1);
testScriptStackTrace(script, expectedStackTrace, 0);
testScriptStackTrace(script, expectedStackTrace, 1);
}
private void testScriptStackTrace(final String script, final String expectedStackTrace,
final int optimizationLevel) {
try {
Utils.executeScript(script, optimizationLevel);
}
catch (final RhinoException e) {
Assert.assertEquals(expectedStackTrace, e.getScriptStackTrace());
}
}
@Test
public void fileName() {
testIt("try { null.method() } catch (e) { e.fileName }", "myScript.js");
testIt("try { null.property } catch (e) { e.fileName }", "myScript.js");
}
@Test
public void lineNumber() {
testIt("try { null.method() } catch (e) { e.lineNumber }", 1);
testIt("try {\n null.method() \n} catch (e) { e.lineNumber }", 2);
testIt("\ntry \n{\n null.method() \n} catch (e) { e.lineNumber }", 4);
testIt("function f() {\n null.method(); \n}\n try { f() } catch (e) { e.lineNumber }", 2);
}
@Test
public void defaultStack() {
RhinoException.useMozillaStackStyle(false);
testScriptStackTrace("null.method()", "\tat myScript.js:1" + LS);
final String script = "function f() \n{\n null.method();\n}\nf();\n";
testScriptStackTrace(script, "\tat myScript.js:3 (f)" + LS + "\tat myScript.js:5" + LS);
testIt("try { null.method() } catch (e) { e.stack }", "\tat myScript.js:1" + LS);
final String expectedStack = "\tat myScript.js:2 (f)" + LS + "\tat myScript.js:4" + LS;
testIt("function f() {\n null.method(); \n}\n try { f() } catch (e) { e.stack }", expectedStack);
}
@Test
public void mozillaStack() {
RhinoException.useMozillaStackStyle(true);
testScriptStackTrace("null.method()", "@myScript.js:1" + LS);
final String script = "function f() \n{\n null.method();\n}\nf();\n";
testScriptStackTrace(script, "f()@myScript.js:3" + LS + "@myScript.js:5" + LS);
testIt("try { null.method() } catch (e) { e.stack }", "@myScript.js:1" + LS);
final String expectedStack = "f()@myScript.js:2" + LS + "@myScript.js:4" + LS;
testIt("function f() {\n null.method(); \n}\n try { f() } catch (e) { e.stack }", expectedStack);
}
private void testIt(final String script, final Object expected) {
final ContextAction action = new ContextAction() {
public Object run(final Context cx) {
try {
final ScriptableObject scope = cx.initStandardObjects();
final Object o = cx.evaluateString(scope, script,
"myScript.js", 1, null);
Assert.assertEquals(expected, o);
return o;
}
catch (final RuntimeException e) {
throw e;
}
catch (final Exception e) {
throw new RuntimeException(e);
}
}
};
Utils.runWithAllOptimizationLevels(action);
}
}