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Test Info: Warnings

"use strict";
// extensions.backgroundServiceWorker.enabled=true is set in the test manifest
// because there is no guarantee that the pref value set at runtime takes effect
// due to the pref being declared "mirror: once". The value of this pref is
// frozen upon the first access to any "mirror:once" pref, and we can therefore
// not assume the pref value to be mutable at runtime.
const PREF_EXT_SW_ENABLED = "extensions.backgroundServiceWorker.enabled";
const defaultPrefs = Services.prefs.getDefaultBranch("");
add_task(
{ skip_if: () => AppConstants.MOZ_WEBEXT_WEBIDL_ENABLED },
async function test_when_extensions_webidl_bindings_disabled() {
Assert.equal(
defaultPrefs.getBoolPref(PREF_EXT_SW_ENABLED),
false,
"The default pref value should be false"
);
Assert.ok(
Services.prefs.prefIsLocked(PREF_EXT_SW_ENABLED),
"Pref should be locked when MOZ_WEBEXT_WEBIDL_ENABLED is false"
);
// Despite the pref set to true (see comment at PREF_EXT_SW_ENABLED), the
// pref should be locked to false when IDL is disabled.
Assert.equal(
Services.prefs.getBoolPref(PREF_EXT_SW_ENABLED),
false,
"Pref value should be the default value"
);
Assert.equal(
WebExtensionPolicy.backgroundServiceWorkerEnabled,
false,
"backgroundServiceWorkerEnabled should be false"
);
Services.prefs.unlockPref(PREF_EXT_SW_ENABLED);
// After unlocking the pref, the pref set to true in the test manifest
// should apply now.
Assert.ok(
Services.prefs.getBoolPref(PREF_EXT_SW_ENABLED),
"After unlocking the pref, the pref can have a non-default value"
);
Assert.equal(
WebExtensionPolicy.backgroundServiceWorkerEnabled,
false,
"backgroundServiceWorkerEnabled is still false despite the pref flip"
);
}
);
add_task(
{ skip_if: () => !AppConstants.MOZ_WEBEXT_WEBIDL_ENABLED },
async function test_when_extensions_webidl_bindings_enabled() {
const defaultPrefValue = defaultPrefs.getBoolPref(PREF_EXT_SW_ENABLED);
info(`The default pref value is ${defaultPrefValue}`);
Assert.ok(
!Services.prefs.prefIsLocked(PREF_EXT_SW_ENABLED),
"Pref should not be locked when MOZ_WEBEXT_WEBIDL_ENABLED is true"
);
// Note: Pref is set to true, see comment at PREF_EXT_SW_ENABLED.
Assert.equal(
Services.prefs.getBoolPref(PREF_EXT_SW_ENABLED),
true,
"Pref value should be true"
);
Assert.equal(
WebExtensionPolicy.backgroundServiceWorkerEnabled,
true,
"backgroundServiceWorkerEnabled should be false"
);
// Flip pref and test result.
Services.prefs.setBoolPref(PREF_EXT_SW_ENABLED, false);
Assert.ok(
!Services.prefs.getBoolPref(PREF_EXT_SW_ENABLED),
"The pref can be flipped to a different value"
);
Assert.equal(
WebExtensionPolicy.backgroundServiceWorkerEnabled,
true,
"backgroundServiceWorkerEnabled is still true despite the pref flip"
);
}
);