1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
|
/* Any copyright is dedicated to the Public Domain.
* http://creativecommons.org/publicdomain/zero/1.0/ */
"use strict";
requestLongerTimeout(10);
const PAGE_1 = "data:text/html,<html><body>A%20regular,%20everyday,%20normal%20page.";
const PAGE_2 = "data:text/html,<html><body>Another%20regular,%20everyday,%20normal%20page.";
// Turn off tab animations for testing and use a single content process
// for these tests since we want to test tabs within the crashing process here.
add_task(function* test_initialize() {
yield SpecialPowers.pushPrefEnv({
set: [
[ "dom.ipc.processCount", 1 ],
[ "browser.tabs.animate", false]
] });
});
// Allow tabs to restore on demand so we can test pending states
Services.prefs.clearUserPref("browser.sessionstore.restore_on_demand");
function clickButton(browser, id) {
info("Clicking " + id);
let frame_script = (id) => {
let button = content.document.getElementById(id);
button.click();
};
let mm = browser.messageManager;
mm.loadFrameScript("data:,(" + frame_script.toString() + ")('" + id + "');", false);
}
/**
* Checks the documentURI of the root document of a remote browser
* to see if it equals URI. Returns a Promise that resolves if
* there is a match, and rejects with an error message if they
* do not match.
*
* @param browser
* The remote <xul:browser> to check the root document URI in.
* @param URI
* A string to match the root document URI against.
* @return Promise
*/
function promiseContentDocumentURIEquals(browser, URI) {
return new Promise((resolve, reject) => {
let frame_script = () => {
sendAsyncMessage("test:documenturi", {
uri: content.document.documentURI,
});
};
let mm = browser.messageManager;
mm.addMessageListener("test:documenturi", function onMessage(message) {
mm.removeMessageListener("test:documenturi", onMessage);
let contentURI = message.data.uri;
if (contentURI == URI) {
resolve();
} else {
reject(`Content has URI ${contentURI} which does not match ${URI}`);
}
});
mm.loadFrameScript("data:,(" + frame_script.toString() + ")();", false);
});
}
/**
* Checks the window.history.length of the root window of a remote
* browser to see if it equals length. Returns a Promise that resolves
* if there is a match, and rejects with an error message if they
* do not match.
*
* @param browser
* The remote <xul:browser> to check the root window.history.length
* @param length
* The expected history length
* @return Promise
*/
function promiseHistoryLength(browser, length) {
return new Promise((resolve, reject) => {
let frame_script = () => {
sendAsyncMessage("test:historylength", {
length: content.history.length,
});
};
let mm = browser.messageManager;
mm.addMessageListener("test:historylength", function onMessage(message) {
mm.removeMessageListener("test:historylength", onMessage);
let contentLength = message.data.length;
if (contentLength == length) {
resolve();
} else {
reject(`Content has window.history.length ${contentLength} which does ` +
`not equal expected ${length}`);
}
});
mm.loadFrameScript("data:,(" + frame_script.toString() + ")();", false);
});
}
/**
* Returns a Promise that resolves when a browser has fired the
* AboutTabCrashedReady event.
*
* @param browser
* The remote <xul:browser> that will fire the event.
* @return Promise
*/
function promiseTabCrashedReady(browser) {
return new Promise((resolve) => {
browser.addEventListener("AboutTabCrashedReady", function ready(e) {
browser.removeEventListener("AboutTabCrashedReady", ready, false, true);
resolve();
}, false, true);
});
}
/**
* Checks that if a tab crashes, that information about the tab crashed
* page does not get added to the tab history.
*/
add_task(function test_crash_page_not_in_history() {
let newTab = gBrowser.addTab();
gBrowser.selectedTab = newTab;
let browser = newTab.linkedBrowser;
ok(browser.isRemoteBrowser, "Should be a remote browser");
yield promiseBrowserLoaded(browser);
browser.loadURI(PAGE_1);
yield promiseBrowserLoaded(browser);
yield TabStateFlusher.flush(browser);
// Crash the tab
yield BrowserTestUtils.crashBrowser(browser);
// Check the tab state and make sure the tab crashed page isn't
// mentioned.
let {entries} = JSON.parse(ss.getTabState(newTab));
is(entries.length, 1, "Should have a single history entry");
is(entries[0].url, PAGE_1,
"Single entry should be the page we visited before crashing");
gBrowser.removeTab(newTab);
});
/**
* Checks that if a tab crashes, that when we browse away from that page
* to a non-blacklisted site (so the browser becomes remote again), that
* we record history for that new visit.
*/
add_task(function test_revived_history_from_remote() {
let newTab = gBrowser.addTab();
gBrowser.selectedTab = newTab;
let browser = newTab.linkedBrowser;
ok(browser.isRemoteBrowser, "Should be a remote browser");
yield promiseBrowserLoaded(browser);
browser.loadURI(PAGE_1);
yield promiseBrowserLoaded(browser);
yield TabStateFlusher.flush(browser);
// Crash the tab
yield BrowserTestUtils.crashBrowser(browser);
// Browse to a new site that will cause the browser to
// become remote again.
browser.loadURI(PAGE_2);
yield promiseTabRestored(newTab);
ok(!newTab.hasAttribute("crashed"), "Tab shouldn't be marked as crashed anymore.");
ok(browser.isRemoteBrowser, "Should be a remote browser");
yield TabStateFlusher.flush(browser);
// Check the tab state and make sure the tab crashed page isn't
// mentioned.
let {entries} = JSON.parse(ss.getTabState(newTab));
is(entries.length, 2, "Should have two history entries");
is(entries[0].url, PAGE_1,
"First entry should be the page we visited before crashing");
is(entries[1].url, PAGE_2,
"Second entry should be the page we visited after crashing");
gBrowser.removeTab(newTab);
});
/**
* Checks that if a tab crashes, that when we browse away from that page
* to a blacklisted site (so the browser stays non-remote), that
* we record history for that new visit.
*/
add_task(function test_revived_history_from_non_remote() {
let newTab = gBrowser.addTab();
gBrowser.selectedTab = newTab;
let browser = newTab.linkedBrowser;
ok(browser.isRemoteBrowser, "Should be a remote browser");
yield promiseBrowserLoaded(browser);
browser.loadURI(PAGE_1);
yield promiseBrowserLoaded(browser);
yield TabStateFlusher.flush(browser);
// Crash the tab
yield BrowserTestUtils.crashBrowser(browser);
// Browse to a new site that will not cause the browser to
// become remote again.
browser.loadURI("about:mozilla");
yield promiseBrowserLoaded(browser);
ok(!newTab.hasAttribute("crashed"), "Tab shouldn't be marked as crashed anymore.");
ok(!browser.isRemoteBrowser, "Should not be a remote browser");
yield TabStateFlusher.flush(browser);
// Check the tab state and make sure the tab crashed page isn't
// mentioned.
let {entries} = JSON.parse(ss.getTabState(newTab));
is(entries.length, 2, "Should have two history entries");
is(entries[0].url, PAGE_1,
"First entry should be the page we visited before crashing");
is(entries[1].url, "about:mozilla",
"Second entry should be the page we visited after crashing");
gBrowser.removeTab(newTab);
});
/**
* Checks that we can revive a crashed tab back to the page that
* it was on when it crashed.
*/
add_task(function test_revive_tab_from_session_store() {
let newTab = gBrowser.addTab();
gBrowser.selectedTab = newTab;
let browser = newTab.linkedBrowser;
ok(browser.isRemoteBrowser, "Should be a remote browser");
yield promiseBrowserLoaded(browser);
browser.loadURI(PAGE_1);
yield promiseBrowserLoaded(browser);
let newTab2 = gBrowser.addTab();
let browser2 = newTab2.linkedBrowser;
ok(browser2.isRemoteBrowser, "Should be a remote browser");
yield promiseBrowserLoaded(browser2);
browser.loadURI(PAGE_1);
yield promiseBrowserLoaded(browser);
browser.loadURI(PAGE_2);
yield promiseBrowserLoaded(browser);
yield TabStateFlusher.flush(browser);
// Crash the tab
yield BrowserTestUtils.crashBrowser(browser);
// Background tabs should not be crashed, but should be in the "to be restored"
// state.
ok(!newTab2.hasAttribute("crashed"), "Second tab should not be crashed.");
ok(newTab2.hasAttribute("pending"), "Second tab should be pending.");
// Use SessionStore to revive the first tab
clickButton(browser, "restoreTab");
yield promiseTabRestored(newTab);
ok(!newTab.hasAttribute("crashed"), "Tab shouldn't be marked as crashed anymore.");
ok(newTab2.hasAttribute("pending"), "Second tab should still be pending.");
// We can't just check browser.currentURI.spec, because from
// the outside, a crashed tab has the same URI as the page
// it crashed on (much like an about:neterror page). Instead,
// we have to use the documentURI on the content.
yield promiseContentDocumentURIEquals(browser, PAGE_2);
// We should also have two entries in the browser history.
yield promiseHistoryLength(browser, 2);
gBrowser.removeTab(newTab);
gBrowser.removeTab(newTab2);
});
/**
* Checks that we can revive multiple crashed tabs back to the pages
* that they were on when they crashed.
*/
add_task(function test_revive_all_tabs_from_session_store() {
let newTab = gBrowser.addTab();
gBrowser.selectedTab = newTab;
let browser = newTab.linkedBrowser;
ok(browser.isRemoteBrowser, "Should be a remote browser");
yield promiseBrowserLoaded(browser);
browser.loadURI(PAGE_1);
yield promiseBrowserLoaded(browser);
// In order to see a second about:tabcrashed page, we'll need
// a second window, since only selected tabs will show
// about:tabcrashed.
let win2 = yield BrowserTestUtils.openNewBrowserWindow();
let newTab2 = win2.gBrowser.addTab(PAGE_1);
win2.gBrowser.selectedTab = newTab2;
let browser2 = newTab2.linkedBrowser;
ok(browser2.isRemoteBrowser, "Should be a remote browser");
yield promiseBrowserLoaded(browser2);
browser.loadURI(PAGE_1);
yield promiseBrowserLoaded(browser);
browser.loadURI(PAGE_2);
yield promiseBrowserLoaded(browser);
yield TabStateFlusher.flush(browser);
yield TabStateFlusher.flush(browser2);
// Crash the tab
yield BrowserTestUtils.crashBrowser(browser);
// Both tabs should now be crashed.
is(newTab.getAttribute("crashed"), "true", "First tab should be crashed");
is(newTab2.getAttribute("crashed"), "true", "Second window tab should be crashed");
// Use SessionStore to revive all the tabs
clickButton(browser, "restoreAll");
yield promiseTabRestored(newTab);
ok(!newTab.hasAttribute("crashed"), "Tab shouldn't be marked as crashed anymore.");
ok(!newTab.hasAttribute("pending"), "Tab shouldn't be pending.");
ok(!newTab2.hasAttribute("crashed"), "Second tab shouldn't be marked as crashed anymore.");
ok(!newTab2.hasAttribute("pending"), "Second tab shouldn't be pending.");
// We can't just check browser.currentURI.spec, because from
// the outside, a crashed tab has the same URI as the page
// it crashed on (much like an about:neterror page). Instead,
// we have to use the documentURI on the content.
yield promiseContentDocumentURIEquals(browser, PAGE_2);
yield promiseContentDocumentURIEquals(browser2, PAGE_1);
// We should also have two entries in the browser history.
yield promiseHistoryLength(browser, 2);
yield BrowserTestUtils.closeWindow(win2);
gBrowser.removeTab(newTab);
});
/**
* Checks that about:tabcrashed can close the current tab
*/
add_task(function test_close_tab_after_crash() {
let newTab = gBrowser.addTab();
gBrowser.selectedTab = newTab;
let browser = newTab.linkedBrowser;
ok(browser.isRemoteBrowser, "Should be a remote browser");
yield promiseBrowserLoaded(browser);
browser.loadURI(PAGE_1);
yield promiseBrowserLoaded(browser);
yield TabStateFlusher.flush(browser);
// Crash the tab
yield BrowserTestUtils.crashBrowser(browser);
let promise = promiseEvent(gBrowser.tabContainer, "TabClose");
// Click the close tab button
clickButton(browser, "closeTab");
yield promise;
is(gBrowser.tabs.length, 1, "Should have closed the tab");
});
/**
* Checks that "restore all" button is only shown if more than one tab
* is showing about:tabcrashed
*/
add_task(function* test_hide_restore_all_button() {
let newTab = gBrowser.addTab();
gBrowser.selectedTab = newTab;
let browser = newTab.linkedBrowser;
ok(browser.isRemoteBrowser, "Should be a remote browser");
yield promiseBrowserLoaded(browser);
browser.loadURI(PAGE_1);
yield promiseBrowserLoaded(browser);
yield TabStateFlusher.flush(browser);
// Crash the tab
yield BrowserTestUtils.crashBrowser(browser);
let doc = browser.contentDocument;
let restoreAllButton = doc.getElementById("restoreAll");
let restoreOneButton = doc.getElementById("restoreTab");
let restoreAllStyles = window.getComputedStyle(restoreAllButton);
is(restoreAllStyles.display, "none", "Restore All button should be hidden");
ok(restoreOneButton.classList.contains("primary"), "Restore Tab button should have the primary class");
let newTab2 = gBrowser.addTab();
gBrowser.selectedTab = newTab;
browser.loadURI(PAGE_2);
yield promiseBrowserLoaded(browser);
// Load up a second window so we can get another tab to show
// about:tabcrashed
let win2 = yield BrowserTestUtils.openNewBrowserWindow();
let newTab3 = win2.gBrowser.addTab(PAGE_2);
win2.gBrowser.selectedTab = newTab3;
let otherWinBrowser = newTab3.linkedBrowser;
yield promiseBrowserLoaded(otherWinBrowser);
// We'll need to make sure the second tab's browser has finished
// sending its AboutTabCrashedReady event before we know for
// sure whether or not we're showing the right Restore buttons.
let otherBrowserReady = promiseTabCrashedReady(otherWinBrowser);
// Crash the first tab.
yield BrowserTestUtils.crashBrowser(browser);
yield otherBrowserReady;
doc = browser.contentDocument;
restoreAllButton = doc.getElementById("restoreAll");
restoreOneButton = doc.getElementById("restoreTab");
restoreAllStyles = window.getComputedStyle(restoreAllButton);
isnot(restoreAllStyles.display, "none", "Restore All button should not be hidden");
ok(!(restoreOneButton.classList.contains("primary")), "Restore Tab button should not have the primary class");
yield BrowserTestUtils.closeWindow(win2);
gBrowser.removeTab(newTab);
gBrowser.removeTab(newTab2);
});
add_task(function* test_aboutcrashedtabzoom() {
let newTab = gBrowser.addTab();
gBrowser.selectedTab = newTab;
let browser = newTab.linkedBrowser;
ok(browser.isRemoteBrowser, "Should be a remote browser");
yield promiseBrowserLoaded(browser);
browser.loadURI(PAGE_1);
yield promiseBrowserLoaded(browser);
FullZoom.enlarge();
let zoomLevel = ZoomManager.getZoomForBrowser(browser);
ok(zoomLevel !== 1, "should have enlarged");
yield TabStateFlusher.flush(browser);
// Crash the tab
yield BrowserTestUtils.crashBrowser(browser);
ok(ZoomManager.getZoomForBrowser(browser) === 1, "zoom should have reset on crash");
clickButton(browser, "restoreTab");
yield promiseTabRestored(newTab);
ok(ZoomManager.getZoomForBrowser(browser) === zoomLevel, "zoom should have gone back to enlarged");
FullZoom.reset();
gBrowser.removeTab(newTab);
});
|
