diff options
| -rw-r--r-- | lib/utils.coffee | 12 | ||||
| -rw-r--r-- | tests/unit_tests/utils_test.coffee | 20 |
2 files changed, 25 insertions, 7 deletions
diff --git a/lib/utils.coffee b/lib/utils.coffee index 31bb47b6..c7f0a085 100644 --- a/lib/utils.coffee +++ b/lib/utils.coffee @@ -9,15 +9,13 @@ Utils = # Returns true whenever the current page is the extension's background page. isBackgroundPage: -> @isExtensionPage() and chrome.extension.getBackgroundPage?() == window - # Takes a dot-notation object string and call the function - # that it points to with the correct value for 'this'. + # Takes a dot-notation object string and calls the function that it points to with the correct value for + # 'this'. invokeCommandString: (str, args...) -> - components = str.split('.') + [names..., name] = str.split '.' obj = window - for component in components[0...-1] - obj = obj[component] - func = obj[components.pop()] - func.apply(obj, args) + obj = obj[component] for component in names + obj[name].apply obj, args # Escape all special characters, so RegExp will parse the string 'as is'. # Taken from http://stackoverflow.com/questions/3446170/escape-string-for-use-in-javascript-regex diff --git a/tests/unit_tests/utils_test.coffee b/tests/unit_tests/utils_test.coffee index 93849349..691b26ec 100644 --- a/tests/unit_tests/utils_test.coffee +++ b/tests/unit_tests/utils_test.coffee @@ -129,3 +129,23 @@ context "makeIdempotent", context "distinctCharacters", should "eliminate duplicate characters", -> assert.equal "abc", Utils.distinctCharacters "bbabaabbacabbbab" + +context "invokeCommandString", + setup -> + @beenCalled = false + window.singleComponentCommand = => @beenCalled = true + window.twoComponentCommand = command: window.singleComponentCommand + + tearDown -> + delete window.singleComponentCommand + delete window.twoComponentCommand + + should "invoke single-component commands", -> + assert.isFalse @beenCalled + Utils.invokeCommandString "singleComponentCommand" + assert.isTrue @beenCalled + + should "invoke multi-component commands", -> + assert.isFalse @beenCalled + Utils.invokeCommandString "twoComponentCommand.command" + assert.isTrue @beenCalled |