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Test Info:
- Manifest: js/xpconnect/tests/unit/xpcshell.toml
/* Any copyright is dedicated to the Public Domain.
const { AppConstants } = ChromeUtils.importESModule(
);
const { addDebuggerToGlobal } = ChromeUtils.importESModule(
);
addDebuggerToGlobal(this);
// Toggle the following pref to enable Cu.getModuleImportStack()
if (AppConstants.NIGHTLY_BUILD) {
Services.prefs.setBoolPref("browser.startup.record", true);
registerCleanupFunction(() => {
Services.prefs.clearUserPref("browser.startup.record");
});
}
add_task(async function testDevToolsModuleLoader() {
const dbg = new Debugger();
const sharedGlobal = Cu.getGlobalForObject(Services);
const sharedPrincipal = Cu.getObjectPrincipal(sharedGlobal);
info("Test importing in the regular shared loader");
const ns = ChromeUtils.importESModule(ESM_URL);
Assert.equal(ns.x, 0);
ns.increment();
Assert.equal(ns.x, 1);
const nsGlobal = Cu.getGlobalForObject(ns);
const nsPrincipal = Cu.getObjectPrincipal(nsGlobal);
Assert.equal(nsGlobal, sharedGlobal, "Without any parameter, importESModule load in the shared JSM global");
Assert.equal(nsPrincipal, sharedPrincipal);
Assert.ok(nsPrincipal.isSystemPrincipal);
info("Global of ESM loaded in the shared loader can be inspected by the Debugger");
dbg.addDebuggee(nsGlobal);
Assert.ok(true, "The global is accepted by the Debugger API");
const ns1 = ChromeUtils.importESModule(ESM_URL, { global: "shared" });
Assert.equal(ns1, ns, "Passing global: 'shared' from the shared JSM global is equivalent to regular importESModule");
info("Test importing in the devtools loader");
const ns2 = ChromeUtils.importESModule(ESM_URL, { global: "devtools" });
Assert.equal(ns2.x, 0, "We get a new module instance with a new incremented number");
Assert.notEqual(ns2, ns, "We imported a new instance of the module");
Assert.notEqual(ns2.importedObject, ns.importedObject, "The two module instances expose distinct objects");
Assert.equal(ns2.importESModuleDevTools, ns2.importedObject, "When using global: 'devtools' from a devtools global, we keep loading in the same loader");
Assert.equal(ns2.importESModuleCurrent, ns2.importedObject, "When using global: 'current' from a devtools global, we keep loading in the same loader");
Assert.equal(ns2.importESModuleContextual, ns2.importedObject, "When using global: 'contextual' from a devtools global, we keep loading in the same loader");
Assert.ok(ns2.importESModuleNoOptionFailed1, "global option is required in DevTools global");
Assert.ok(ns2.importESModuleNoOptionFailed2, "global option is required in DevTools global");
Assert.equal(ns2.importESModuleShared, ns.importedObject, "When passing global: 'shared', we load in the shared global, even from a devtools global");
Assert.equal(ns2.importLazyDevTools(), ns2.importedObject, "When using global: 'devtools' from a devtools global, we keep loading in the same loader");
Assert.equal(ns2.importLazyCurrent(), ns2.importedObject, "When using global: 'current' from a devtools global, we keep loading in the same loader");
Assert.equal(ns2.importLazyContextual(), ns2.importedObject, "When using global: 'contextual' from a devtools global, we keep loading in the same loader");
Assert.ok(ns2.importLazyNoOptionFailed1, "global option is required in DevTools global");
Assert.ok(ns2.importLazyNoOptionFailed2, "global option is required in DevTools global");
Assert.equal(ns2.importLazyShared(), ns.importedObject, "When passing global: 'shared', we load in the shared global, even from a devtools global");
info("When using the devtools loader, we load in a distinct global, but the same compartment");
const ns2Global = Cu.getGlobalForObject(ns2);
const ns2Principal = Cu.getObjectPrincipal(ns2Global);
Assert.notEqual(ns2Global, sharedGlobal, "The module is loaded in a distinct global");
Assert.equal(ns2Principal, sharedPrincipal, "The principal is still the shared system principal");
Assert.equal(Cu.getGlobalForObject(ns2.importedObject), ns2Global, "Nested dependencies are also loaded in the same devtools global");
Assert.throws(() => dbg.addDebuggee(ns2Global), /TypeError: passing non-debuggable global to addDebuggee/,
"Global os ESM loaded in the devtools loader can't be inspected by the Debugee");
info("Re-import the same module in the devtools loader");
const ns3 = ChromeUtils.importESModule(ESM_URL, { global: "devtools" });
Assert.equal(ns3, ns2, "We import the exact same module");
Assert.equal(ns3.importedObject, ns2.importedObject, "The two module expose the same objects");
info("Import a module only from the devtools loader");
const ns4 = ChromeUtils.importESModule("resource://test/es6module_devtoolsLoader_only.js", { global: "devtools" });
const ns4Global = Cu.getGlobalForObject(ns4);
Assert.equal(ns4Global, ns2Global, "The module is loaded in the same devtools global");
// getModuleImportStack only works on nightly builds
if (AppConstants.NIGHTLY_BUILD) {
info("Assert the behavior of getModuleImportStack on modules loaded in the devtools loader");
Assert.ok(Cu.getModuleImportStack(ESM_URL).includes("testDevToolsModuleLoader"));
Assert.ok(Cu.getModuleImportStack("resource://test/es6module_devtoolsLoader.js").includes("testDevToolsModuleLoader"));
Assert.ok(Cu.getModuleImportStack("resource://test/es6module_devtoolsLoader.js").includes(ESM_URL));
// Previous import stack were for module loaded via the shared jsm loader.
// Let's also assert that we get stack traces for modules loaded via the devtools loader.
Assert.ok(Cu.getModuleImportStack("resource://test/es6module_devtoolsLoader_only.js").includes("testDevToolsModuleLoader"));
}
});