gecko/browser/devtools/debugger/test/browser_dbg_controller-evaluate-01.js

93 lines
3.6 KiB
JavaScript

/* Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
/**
* Tests the public evaluation API from the debugger controller.
*/
const TAB_URL = EXAMPLE_URL + "doc_script-switching-01.html";
function test() {
Task.spawn(function() {
let [tab, debuggee, panel] = yield initDebugger(TAB_URL);
let win = panel.panelWin;
let frames = win.DebuggerController.StackFrames;
let framesView = win.DebuggerView.StackFrames;
let sources = win.DebuggerController.SourceScripts;
let sourcesView = win.DebuggerView.Sources;
let editorView = win.DebuggerView.editor;
let events = win.EVENTS;
function checkView(frameDepth, selectedSource, caretLine, editorText) {
is(win.gThreadClient.state, "paused",
"Should only be getting stack frames while paused.");
is(framesView.itemCount, 4,
"Should have four frames.");
is(framesView.selectedDepth, frameDepth,
"The correct frame is selected in the widget.");
is(sourcesView.selectedIndex, selectedSource,
"The correct source is selected in the widget.");
ok(isCaretPos(panel, caretLine),
"Editor caret location is correct.");
is(editorView.getText().search(editorText[0]), editorText[1],
"The correct source is not displayed.");
}
// Cache the sources text to avoid having to wait for their retrieval.
yield promise.all(sourcesView.attachments.map(e => sources.getText(e.source)));
is(sources._cache.size, 2, "There should be two cached sources in the cache.");
// Eval while not paused.
try {
yield frames.evaluate("foo");
} catch (error) {
is(error.message, "No stack frame available.",
"Evaluating shouldn't work while the debuggee isn't paused.");
}
// Allow this generator function to yield first.
executeSoon(() => debuggee.firstCall());
yield waitForSourceAndCaretAndScopes(panel, "-02.js", 1);
checkView(0, 1, 1, [/secondCall/, 118]);
// Eval in the topmost frame, while paused.
let updatedView = waitForDebuggerEvents(panel, events.FETCHED_SCOPES);
let result = yield frames.evaluate("foo");
ok(!result.throw, "The evaluation hasn't thrown.");
is(result.return.type, "object", "The evaluation return type is correct.");
is(result.return.class, "Function", "The evaluation return class is correct.");
yield updatedView;
checkView(0, 1, 1, [/secondCall/, 118]);
ok(true, "Evaluating in the topmost frame works properly.");
// Eval in a different frame, while paused.
let updatedView = waitForDebuggerEvents(panel, events.FETCHED_SCOPES);
try {
yield frames.evaluate("foo", { depth: 3 }); // oldest frame
} catch (result) {
is(result.return.type, "object", "The evaluation thrown type is correct.");
is(result.return.class, "Error", "The evaluation thrown class is correct.");
ok(!result.return, "The evaluation hasn't returned.");
}
yield updatedView;
checkView(0, 1, 1, [/secondCall/, 118]);
ok(true, "Evaluating in a custom frame works properly.");
// Eval in a non-existent frame, while paused.
waitForDebuggerEvents(panel, events.FETCHED_SCOPES).then(() => {
ok(false, "Shouldn't have updated the view when trying to evaluate " +
"an expression in a non-existent stack frame.");
});
try {
yield frames.evaluate("foo", { depth: 4 }); // non-existent frame
} catch (error) {
is(error.message, "No stack frame available.",
"Evaluating shouldn't work if the specified frame doesn't exist.");
}
yield resumeDebuggerThenCloseAndFinish(panel);
});
}