package org.mozilla.javascript.tests;
import junit.framework.TestCase;
import org.junit.Test;
import org.mozilla.javascript.Context;
import org.mozilla.javascript.ContextAction;
import org.mozilla.javascript.ScriptableObject;
/**
* Test for delete that should apply for properties defined in prototype chain.
* See https://bugzilla.mozilla.org/show_bug.cgi?id=510504
*/
public class DeletePropertyTest extends TestCase {
/**
* delete should not delete anything in the prototype chain.
*/
@Test
public void testDeletePropInPrototype() throws Exception {
final String script = "Array.prototype.foo = function() {};\n"
+ "Array.prototype[1] = function() {};\n"
+ "var t = [];\n"
+ "[].foo();\n"
+ "for (var i in t) delete t[i];\n"
+ "[].foo();\n"
+ "[][1]();\n";
final ContextAction action = new ContextAction()
{
public Object run(final Context _cx)
{
final ScriptableObject scope = _cx.initStandardObjects();
final Object result = _cx.evaluateString(scope, script, "test script", 0, null);
return null;
}
};
Utils.runWithAllOptimizationLevels(action);
}
}