javascript 测试 angularjs ui-router go() 方法
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testing angularjs ui-router go() method
提问by shmish111
I have a controller which gets a value from $scopeand sends it to a different state:
我有一个控制器，它从中获取一个值$scope并将其发送到不同的状态：
controllers.controller('SearchController', ['$scope', '$state', '$stateParams',
function($scope, $state, $stateParams) {
$scope.search = function() {
$stateParams.query = $scope.keyword;
$state.go('search', $stateParams);
};
}]);
I am unsure how to go about unit testing this search method. How can I either verify that the go method has been called or do some sort of when($state.go('search', $stateParams)).then(called = true);with Karma/AngularJS?
我不确定如何对这种搜索方法进行单元测试。我如何验证 go 方法是否已被调用或when($state.go('search', $stateParams)).then(called = true);使用 Karma/AngularJS执行某种操作？
回答by Andyrooger
Both of these sound like things you can do with Jasmine spies.
这两个听起来像是你可以用茉莉花间谍做的事情。
describe('my unit tests', function() {
beforeEach(inject(function($state) {
spyOn($state, 'go');
// or
spyOn($state, 'go').andCallFake(function(state, params) {
// This replaces the 'go' functionality for the duration of your test
});
}));
it('should test something', inject(function($state){
// Call something that eventually hits $state.go
expect($state.go).toHaveBeenCalled();
expect($state.go).toHaveBeenCalledWith(expectedState, expectedParams);
// ...
}));
});
There is a good spy cheatsheet here http://tobyho.com/2011/12/15/jasmine-spy-cheatsheet/or the actual Jasmine docs here.
这里有一个很好的间谍的cheatsheet http://tobyho.com/2011/12/15/jasmine-spy-cheatsheet/或实际茉莉花文档在这里。
The nice thing about using spies is that it will let you avoid actually performing the state transition unless you explicitly tell it to. A state transition will fail your unit test in Karma if it changes the URL.
使用 spies 的好处是它可以让你避免实际执行状态转换，除非你明确告诉它。如果更改 URL，状态转换将使 Karma 中的单元测试失败。
