diff options
Diffstat (limited to 'toolkit/mozapps/update/tests/unit_aus_update/perInstallationPrefs.js')
| -rw-r--r-- | toolkit/mozapps/update/tests/unit_aus_update/perInstallationPrefs.js | 238 |
1 files changed, 238 insertions, 0 deletions
diff --git a/toolkit/mozapps/update/tests/unit_aus_update/perInstallationPrefs.js b/toolkit/mozapps/update/tests/unit_aus_update/perInstallationPrefs.js new file mode 100644 index 0000000000..4a4a8ff2ae --- /dev/null +++ b/toolkit/mozapps/update/tests/unit_aus_update/perInstallationPrefs.js @@ -0,0 +1,238 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + */ + +let gPolicyFunctionResult; + +async function testSetup() { + // The setup functions we use for update testing typically allow for update. + // But we are just testing preferences here. We don't want anything to + // actually attempt to update. Also, because we are messing with the pref + // system itself in this test, we want to make sure to use a pref outside of + // that system to disable update. + Services.prefs.setBoolPref(PREF_APP_UPDATE_DISABLEDFORTESTING, true); + + // We run these tests whether per-installation prefs are supported or not, + // because this API needs to work in both cases. + logTestInfo( + "PER_INSTALLATION_PREFS_SUPPORTED = " + + UpdateUtils.PER_INSTALLATION_PREFS_SUPPORTED.toString() + ); + + // Save the original state so we can restore it after the test. + const originalPerInstallationPrefs = UpdateUtils.PER_INSTALLATION_PREFS; + let configFile = getUpdateDirFile(FILE_UPDATE_CONFIG_JSON); + try { + configFile.moveTo(null, FILE_BACKUP_UPDATE_CONFIG_JSON); + } catch (e) {} + + // Currently, features exist for per-installation prefs that are not used by + // any actual pref. We added them because we intend to use these features in + // the future. Thus, we will override the normally defined per-installation + // prefs and provide our own, for the purposes of testing. + UpdateUtils.PER_INSTALLATION_PREFS = { + "test.pref.boolean": { + type: UpdateUtils.PER_INSTALLATION_PREF_TYPE_BOOL, + defaultValue: true, + observerTopic: "test-pref-change-observer-boolean", + }, + "test.pref.integer": { + type: UpdateUtils.PER_INSTALLATION_PREF_TYPE_INT, + defaultValue: 1234, + observerTopic: "test-pref-change-observer-integer", + }, + "test.pref.string": { + type: UpdateUtils.PER_INSTALLATION_PREF_TYPE_ASCII_STRING, + defaultValue: "<default>", + observerTopic: "test-pref-change-observer-string", + }, + "test.pref.policy": { + type: UpdateUtils.PER_INSTALLATION_PREF_TYPE_INT, + defaultValue: 1234, + observerTopic: "test-pref-change-observer-policy", + policyFn: () => gPolicyFunctionResult, + }, + }; + // We need to re-initialize the pref system with these new prefs + UpdateUtils.initPerInstallPrefs(); + + registerCleanupFunction(() => { + if (UpdateUtils.PER_INSTALLATION_PREFS_SUPPORTED) { + let testConfigFile = getUpdateDirFile(FILE_UPDATE_CONFIG_JSON); + let backupConfigFile = getUpdateDirFile(FILE_BACKUP_UPDATE_CONFIG_JSON); + try { + testConfigFile.remove(false); + backupConfigFile.moveTo(null, FILE_UPDATE_CONFIG_JSON); + } catch (ex) {} + } else { + for (const prefName in UpdateUtils.PER_INSTALLATION_PREFS) { + Services.prefs.clearUserPref(prefName); + } + } + + UpdateUtils.PER_INSTALLATION_PREFS = originalPerInstallationPrefs; + UpdateUtils.initPerInstallPrefs(); + }); +} + +let gObserverSeenCount = 0; +let gExpectedObserverData; +function observerCallback(subject, topic, data) { + gObserverSeenCount += 1; + Assert.equal( + data, + gExpectedObserverData, + `Expected observer to have data: "${gExpectedObserverData}". ` + + `It actually has data: "${data}"` + ); +} + +async function changeAndVerifyPref( + prefName, + expectedInitialValue, + newValue, + setterShouldThrow = false +) { + let initialValue = await UpdateUtils.readUpdateConfigSetting(prefName); + Assert.strictEqual( + initialValue, + expectedInitialValue, + `Expected pref '${prefName}' to have an initial value of ` + + `${JSON.stringify(expectedInitialValue)}. Its actual initial value is ` + + `${JSON.stringify(initialValue)}` + ); + + let expectedObserverCount = 1; + if (initialValue == newValue || setterShouldThrow) { + expectedObserverCount = 0; + } + + let observerTopic = + UpdateUtils.PER_INSTALLATION_PREFS[prefName].observerTopic; + gObserverSeenCount = 0; + gExpectedObserverData = newValue.toString(); + Services.obs.addObserver(observerCallback, observerTopic); + + let returned; + let exceptionThrown; + try { + returned = await UpdateUtils.writeUpdateConfigSetting(prefName, newValue); + } catch (e) { + exceptionThrown = e; + } + if (setterShouldThrow) { + Assert.ok(!!exceptionThrown, "Expected an exception to be thrown"); + } else { + Assert.ok( + !exceptionThrown, + `Unexpected exception thrown by writeUpdateConfigSetting: ` + + `${exceptionThrown}` + ); + } + + if (!exceptionThrown) { + Assert.strictEqual( + returned, + newValue, + `Expected writeUpdateConfigSetting to return ` + + `${JSON.stringify(newValue)}. It actually returned ` + + `${JSON.stringify(returned)}` + ); + } + + let readValue = await UpdateUtils.readUpdateConfigSetting(prefName); + let expectedReadValue = exceptionThrown ? expectedInitialValue : newValue; + Assert.strictEqual( + readValue, + expectedReadValue, + `Expected pref '${prefName}' to be ${JSON.stringify(expectedReadValue)}.` + + ` It was actually ${JSON.stringify(readValue)}.` + ); + + Assert.equal( + gObserverSeenCount, + expectedObserverCount, + `Expected to see observer fire ${expectedObserverCount} times. It ` + + `actually fired ${gObserverSeenCount} times.` + ); + Services.obs.removeObserver(observerCallback, observerTopic); +} + +async function run_test() { + setupTestCommon(null); + standardInit(); + await testSetup(); + + logTestInfo("Testing boolean pref and its observer"); + let pref = "test.pref.boolean"; + let defaultValue = UpdateUtils.PER_INSTALLATION_PREFS[pref].defaultValue; + await changeAndVerifyPref(pref, defaultValue, defaultValue); + await changeAndVerifyPref(pref, defaultValue, !defaultValue); + await changeAndVerifyPref(pref, !defaultValue, !defaultValue); + await changeAndVerifyPref(pref, !defaultValue, defaultValue); + await changeAndVerifyPref(pref, defaultValue, defaultValue); + await changeAndVerifyPref(pref, defaultValue, "true", true); + await changeAndVerifyPref(pref, defaultValue, 1, true); + + logTestInfo("Testing string pref and its observer"); + pref = "test.pref.string"; + defaultValue = UpdateUtils.PER_INSTALLATION_PREFS[pref].defaultValue; + await changeAndVerifyPref(pref, defaultValue, defaultValue); + await changeAndVerifyPref(pref, defaultValue, defaultValue + "1"); + await changeAndVerifyPref(pref, defaultValue + "1", ""); + await changeAndVerifyPref(pref, "", 1, true); + await changeAndVerifyPref(pref, "", true, true); + + logTestInfo("Testing integer pref and its observer"); + pref = "test.pref.integer"; + defaultValue = UpdateUtils.PER_INSTALLATION_PREFS[pref].defaultValue; + await changeAndVerifyPref(pref, defaultValue, defaultValue); + await changeAndVerifyPref(pref, defaultValue, defaultValue + 1); + await changeAndVerifyPref(pref, defaultValue + 1, 0); + await changeAndVerifyPref(pref, 0, "1", true); + await changeAndVerifyPref(pref, 0, true, true); + + // Testing that the default pref branch works the same way that the default + // branch works for our per-profile prefs. + logTestInfo("Testing default branch behavior"); + pref = "test.pref.integer"; + let originalDefault = UpdateUtils.PER_INSTALLATION_PREFS[pref].defaultValue; + // Make sure the value is the default value, then change the default value + // and check that the effective value changes. + await UpdateUtils.writeUpdateConfigSetting(pref, originalDefault, { + setDefaultOnly: true, + }); + await UpdateUtils.writeUpdateConfigSetting(pref, originalDefault); + await UpdateUtils.writeUpdateConfigSetting(pref, originalDefault + 1, { + setDefaultOnly: true, + }); + Assert.strictEqual( + await UpdateUtils.readUpdateConfigSetting(pref), + originalDefault + 1, + `Expected that changing the default of a pref with no user value should ` + + `change the effective value` + ); + // Now make the user value different from the default value and ensure that + // changing the default value does not affect the effective value + await UpdateUtils.writeUpdateConfigSetting(pref, originalDefault + 10); + await UpdateUtils.writeUpdateConfigSetting(pref, originalDefault + 20, { + setDefaultOnly: true, + }); + Assert.strictEqual( + await UpdateUtils.readUpdateConfigSetting(pref), + originalDefault + 10, + `Expected that changing the default of a pref with a user value should ` + + `NOT change the effective value` + ); + + logTestInfo("Testing policy behavior"); + pref = "test.pref.policy"; + defaultValue = UpdateUtils.PER_INSTALLATION_PREFS[pref].defaultValue; + gPolicyFunctionResult = null; + await changeAndVerifyPref(pref, defaultValue, defaultValue + 1); + gPolicyFunctionResult = defaultValue + 10; + await changeAndVerifyPref(pref, gPolicyFunctionResult, 0, true); + + doTestFinish(); +} |