summaryrefslogtreecommitdiffstats
path: root/devtools/client/shared/test/browser_prefs-01.js
diff options
context:
space:
mode:
Diffstat (limited to 'devtools/client/shared/test/browser_prefs-01.js')
-rw-r--r--devtools/client/shared/test/browser_prefs-01.js44
1 files changed, 44 insertions, 0 deletions
diff --git a/devtools/client/shared/test/browser_prefs-01.js b/devtools/client/shared/test/browser_prefs-01.js
new file mode 100644
index 000000000..193348361
--- /dev/null
+++ b/devtools/client/shared/test/browser_prefs-01.js
@@ -0,0 +1,44 @@
+/* Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Tests that the preference helpers work properly.
+
+const { PrefsHelper } = require("devtools/client/shared/prefs");
+
+function test() {
+ let Prefs = new PrefsHelper("devtools.debugger", {
+ "foo": ["Bool", "enabled"]
+ });
+
+ let originalPrefValue = Services.prefs.getBoolPref("devtools.debugger.enabled");
+ is(Prefs.foo, originalPrefValue, "The pref value was correctly fetched.");
+
+ Prefs.foo = !originalPrefValue;
+ is(Prefs.foo, !originalPrefValue,
+ "The pref was was correctly changed (1).");
+ is(Services.prefs.getBoolPref("devtools.debugger.enabled"), !originalPrefValue,
+ "The pref was was correctly changed (2).");
+
+ Services.prefs.setBoolPref("devtools.debugger.enabled", originalPrefValue);
+ info("The pref value was reset (1).");
+ is(Prefs.foo, !originalPrefValue,
+ "The cached pref value hasn't changed yet (1).");
+
+ Services.prefs.setBoolPref("devtools.debugger.enabled", !originalPrefValue);
+ info("The pref value was reset (2).");
+ is(Prefs.foo, !originalPrefValue,
+ "The cached pref value hasn't changed yet (2).");
+
+ Prefs.registerObserver();
+
+ Services.prefs.setBoolPref("devtools.debugger.enabled", originalPrefValue);
+ info("The pref value was reset (3).");
+ is(Prefs.foo, originalPrefValue,
+ "The cached pref value has changed now.");
+
+ Prefs.unregisterObserver();
+
+ finish();
+}