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
|
/* Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
"use strict";
const {
useDistinctSystemPrincipalLoader,
releaseDistinctSystemPrincipalLoader,
} = ChromeUtils.importESModule(
"resource://devtools/shared/loader/DistinctSystemPrincipalLoader.sys.mjs"
);
function run_test() {
const requester = {},
requester2 = {};
const loader = useDistinctSystemPrincipalLoader(requester);
// The DevTools dedicated global forces invisibleToDebugger on its realm at
// https://searchfox.org/mozilla-central/rev/12a18f7e112a4dcf88d8441d439b84144bfbe9a3/js/xpconnect/loader/mozJSModuleLoader.cpp#591-593
// but this is not observable directly.
const DevToolsSpecialGlobal = Cu.getGlobalForObject(
ChromeUtils.importESModule(
"resource://devtools/shared/DevToolsInfaillibleUtils.sys.mjs",
{ loadInDevToolsLoader: true }
)
);
const regularLoader = new DevToolsLoader();
ok(
DevToolsSpecialGlobal !== regularLoader.loader.sharedGlobal,
"The regular loader is not using the special DevTools global"
);
info("Assert the key difference with the other regular loaders:");
ok(
DevToolsSpecialGlobal === loader.loader.sharedGlobal,
"The system principal loader is using the special DevTools global"
);
ok(loader.loader, "Loader is not destroyed before calling release");
info("Now assert the precise behavior of release");
releaseDistinctSystemPrincipalLoader({});
ok(
loader.loader,
"Loader is still not destroyed after calling release with another requester"
);
releaseDistinctSystemPrincipalLoader(requester);
ok(
!loader.loader,
"Loader is destroyed after calling release with the right requester"
);
info("Now test the behavior with two concurrent usages");
const loader2 = useDistinctSystemPrincipalLoader(requester);
Assert.notEqual(loader, loader2, "We get a new loader instance");
ok(
DevToolsSpecialGlobal === loader2.loader.sharedGlobal,
"The new system principal loader is also using the special DevTools global"
);
const loader3 = useDistinctSystemPrincipalLoader(requester2);
Assert.equal(loader2, loader3, "The two loader last loaders are shared");
releaseDistinctSystemPrincipalLoader(requester);
ok(loader2.loader, "Loader isn't destroy on the first call to destroy");
releaseDistinctSystemPrincipalLoader(requester2);
ok(!loader2.loader, "Loader is destroyed on the second call to destroy");
}
|
