gecko/browser/devtools/debugger/test/browser_dbg_pretty-print-06.js

93 lines
3.1 KiB
JavaScript

/* Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
/**
* Make sure that prettifying JS sources with type errors works as expected.
*/
const TAB_URL = EXAMPLE_URL + "doc_included-script.html";
const JS_URL = EXAMPLE_URL + "code_location-changes.js";
let gTab, gPanel, gDebugger, gClient;
let gEditor, gSources, gControllerSources, gPrettyPrinted;
function test() {
initDebugger(TAB_URL).then(([aTab,, aPanel]) => {
gTab = aTab;
gPanel = aPanel;
gDebugger = gPanel.panelWin;
gClient = gDebugger.gClient;
gEditor = gDebugger.DebuggerView.editor;
gSources = gDebugger.DebuggerView.Sources;
gControllerSources = gDebugger.DebuggerController.SourceScripts;
// We can't feed javascript files with syntax errors to the debugger,
// because they will never run, thus sometimes getting gc'd before the
// debugger is opened, or even before the target finishes navigating.
// Make the client lie about being able to parse perfectly fine code.
gClient.request = (function (aOriginalRequestMethod) {
return function (aPacket, aCallback) {
if (aPacket.type == "prettyPrint") {
gPrettyPrinted = true;
return executeSoon(() => aCallback({ error: "prettyPrintError" }));
}
return aOriginalRequestMethod(aPacket, aCallback);
};
}(gClient.request));
Task.spawn(function() {
yield waitForSourceShown(gPanel, JS_URL);
// From this point onward, the source editor's text should never change.
gEditor.once("change", () => {
ok(false, "The source editor text shouldn't have changed.");
});
is(getSelectedSourceURL(gSources), JS_URL,
"The correct source is currently selected.");
ok(gEditor.getText().contains("myFunction"),
"The source shouldn't be pretty printed yet.");
clickPrettyPrintButton();
let { source } = gSources.selectedItem.attachment;
try {
yield gControllerSources.togglePrettyPrint(source);
ok(false, "The promise for a prettified source should be rejected!");
} catch ([source, error]) {
ok(error.contains("prettyPrintError"),
"The promise was correctly rejected with a meaningful message.");
}
let text;
[source, text] = yield gControllerSources.getText(source);
is(getSelectedSourceURL(gSources), JS_URL,
"The correct source is still selected.");
ok(gEditor.getText().contains("myFunction"),
"The displayed source hasn't changed.");
ok(text.contains("myFunction"),
"The cached source text wasn't altered in any way.");
is(gPrettyPrinted, true,
"The hijacked pretty print method was executed.");
yield closeDebuggerAndFinish(gPanel);
});
});
}
function clickPrettyPrintButton() {
gDebugger.document.getElementById("pretty-print").click();
}
registerCleanupFunction(function() {
gTab = null;
gPanel = null;
gDebugger = null;
gClient = null;
gEditor = null;
gSources = null;
gControllerSources = null;
gPrettyPrinted = null;
});