LayoutTests/inspector/debugger/command-line-api-exception.html

<!DOCTYPE html>
<html>
<head>
<script src="../../http/tests/inspector/resources/inspector-test.js"></script>
<script src="./resources/exceptions.js"></script>
<script>
TestPage.allowUncaughtExceptions = true;
TestPage.needToSanitizeUncaughtExceptionURLs = true;

function test()
{
    WI.debuggerManager.allExceptionsBreakpoint.disabled = false;

    let suite = InspectorTest.createAsyncSuite("CommandLineAPI.$exception");

    function addNoExceptionTest(name) {
        suite.addTestCase({
            name, description: "Without exceptions, $exception should be undefined",
            test(resolve, reject) {
                WI.runtimeManager.evaluateInInspectedWindow("$exception", {objectGroup: "test", includeCommandLineAPI: true, doNotPauseOnExceptionsAndMuteConsole: true}, (result, wasThrown) => {
                    InspectorTest.expectThat(wasThrown, "$exception should throw an error if there is no exception.");
                    InspectorTest.log(result.description);
                    resolve();
                });
            }
        });
    }

    function addUncaughtExceptionTest(name, testFunction) {
        suite.addTestCase({
            name, description: "Trigger an uncaught exception and check $exception.",
            test(resolve, reject) {
                InspectorTest.evaluateInPage(`setTimeout(${testFunction})`);
                WI.debuggerManager.singleFireEventListener(WI.DebuggerManager.Event.Paused, (event) => {
                    WI.runtimeManager.evaluateInInspectedWindow("$exception", {objectGroup: "test", includeCommandLineAPI: true, doNotPauseOnExceptionsAndMuteConsole: true}, (result, wasThrown) => {
                        InspectorTest.log("$exception => " + result.description);
                        WI.debuggerManager.resume().then(resolve, reject);
                    });
                });
            }
        });
    }

    function addCaughtExceptionTest(name, expression) {
        suite.addTestCase({
            name, description: "Trigger a caught exception and check $exception.",
            test(resolve, reject) {
                InspectorTest.evaluateInPage(expression);

                let didStep = false;
                let didEvaluate = false;

                let listener = WI.debuggerManager.addEventListener(WI.DebuggerManager.Event.CallFramesDidChange, (event) => {
                    if (!WI.debuggerManager.activeCallFrame)
                        return;

                    if (!didStep) {
                        didStep = true;
                        InspectorTest.pass("Paused, stepping out to catch block...");
                        WI.debuggerManager.stepOut();
                        return;
                    }

                    if (!didEvaluate) {
                        didEvaluate = true;
                        WI.runtimeManager.evaluateInInspectedWindow("$exception === e", {objectGroup: "test", includeCommandLineAPI: true, doNotPauseOnExceptionsAndMuteConsole: true}, (result, wasThrown) => {
                            InspectorTest.expectThat(result.description === "true", "`$exception` should be equal to `e`.");
                        });
                        WI.runtimeManager.evaluateInInspectedWindow("$exception", {objectGroup: "test", includeCommandLineAPI: true, doNotPauseOnExceptionsAndMuteConsole: true}, (result, wasThrown) => {
                            InspectorTest.log("$exception => " + result.description);
                            InspectorTest.singleFireEventListener("AfterTestFunction", resolve);
                            WI.debuggerManager.resume().then(() => {
                                WI.debuggerManager.removeEventListener(WI.DebuggerManager.Event.CallFramesDidChange, listener);
                            }).catch(reject);
                        });
                        return;
                    }
                });
            }
        });
    }

    addNoExceptionTest("BeforeExceptions");

    addUncaughtExceptionTest("UncaughtTypeException", "triggerUncaughtTypeException");
    addUncaughtExceptionTest("UncaughtReferenceException", "triggerUncaughtReferenceException");
    addUncaughtExceptionTest("UncaughtSyntaxException", "triggerUncaughtSyntaxException");
    addUncaughtExceptionTest("UncaughtDOMException", "triggerUncaughtDOMException");
    addUncaughtExceptionTest("UncaughtString", "throwString");
    addUncaughtExceptionTest("UncaughtNumber", "throwNumber");
    addUncaughtExceptionTest("UncaughtNull", "throwNull");
    addUncaughtExceptionTest("UncaughtObject", "throwObject");
    addUncaughtExceptionTest("UncaughtNode", "throwNode");

    addCaughtExceptionTest("CatchTypeException", `setTimeout(function() { catcher(triggerUncaughtTypeException); TestPage.dispatchEventToFrontend("AfterTestFunction"); })`);
    addCaughtExceptionTest("CatchThrownString", `setTimeout(function() { catcher(throwString); TestPage.dispatchEventToFrontend("AfterTestFunction"); })`);
    addCaughtExceptionTest("CatchThrownObject", `setTimeout(function() { catcher(throwObject); TestPage.dispatchEventToFrontend("AfterTestFunction"); })`);

    addNoExceptionTest("AfterExceptions");

    suite.runTestCasesAndFinish();
}
</script>
</head>
<body onload="runTest()">
<p>Checks that <code>$exception</code> is available and accurate in evaluations when paused on an exception.</p>
</body>
</html>