import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

devtools/client/webconsole/test/browser_console_optimized_out_vars.js

@@ -0,0 +1,91 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// Check that inspecting an optimized out variable works when execution is
+// paused.
+
+"use strict";
+
+// Force the old debugger UI since it's directly used (see Bug 1301705)
+Services.prefs.setBoolPref("devtools.debugger.new-debugger-frontend", false);
+registerCleanupFunction(function* () {
+  Services.prefs.clearUserPref("devtools.debugger.new-debugger-frontend");
+});
+
+function test() {
+  Task.spawn(function* () {
+    const TEST_URI = "http://example.com/browser/devtools/client/webconsole/" +
+                     "test/test-closure-optimized-out.html";
+    let {tab} = yield loadTab(TEST_URI);
+    let hud = yield openConsole(tab);
+    let { toolbox, panel, panelWin } = yield openDebugger();
+
+    let sources = panelWin.DebuggerView.Sources;
+    yield panel.addBreakpoint({ actor: sources.values[0], line: 18 });
+    yield ensureThreadClientState(panel, "resumed");
+
+    let fetchedScopes = panelWin.once(panelWin.EVENTS.FETCHED_SCOPES);
+
+    // Cause the debuggee to pause
+    ContentTask.spawn(gBrowser.selectedBrowser, {}, function* () {
+      let button = content.document.querySelector("button");
+      button.click();
+    });
+
+    yield fetchedScopes;
+    ok(true, "Scopes were fetched");
+
+    yield toolbox.selectTool("webconsole");
+
+    // This is the meat of the test: evaluate the optimized out variable.
+    hud.jsterm.execute("upvar");
+    yield waitForMessages({
+      webconsole: hud,
+      messages: [{
+        text: "optimized out",
+        category: CATEGORY_OUTPUT,
+      }]
+    });
+
+    finishTest();
+  }).then(null, aError => {
+    ok(false, "Got an error: " + aError.message + "\n" + aError.stack);
+  });
+}
+
+// Debugger helper functions stolen from devtools/client/debugger/test/head.js.
+
+function ensureThreadClientState(aPanel, aState) {
+  let thread = aPanel.panelWin.gThreadClient;
+  let state = thread.state;
+
+  info("Thread is: '" + state + "'.");
+
+  if (state == aState) {
+    return promise.resolve(null);
+  }
+  return waitForThreadEvents(aPanel, aState);
+}
+
+function waitForThreadEvents(aPanel, aEventName, aEventRepeat = 1) {
+  info("Waiting for thread event: '" + aEventName + "' to fire: " +
+       aEventRepeat + " time(s).");
+
+  let deferred = promise.defer();
+  let thread = aPanel.panelWin.gThreadClient;
+  let count = 0;
+
+  thread.addListener(aEventName, function onEvent(eventName, ...args) {
+    info("Thread event '" + eventName + "' fired: " + (++count) + " time(s).");
+
+    if (count == aEventRepeat) {
+      ok(true, "Enough '" + eventName + "' thread events have been fired.");
+      thread.removeListener(eventName, onEvent);
+      deferred.resolve.apply(deferred, args);
+    }
+  });
+
+  return deferred.promise;
+}