[英]Unit test angular directive
因此,我正在跟着指令的单元测试一起进行,但是我无法将其编译...
指示
home.directive('myDirective', function($compile) {
return {
restrict: 'E',
scope: {
text: '@',
href: '@'
},
link: function(scope, elem, attrs) {
var text = '<span>Text: <a href="'+scope.href+'">'+scope.text+'</a><br />';
text += 'HREF: '+scope.href+'</span>';
var newElement = $compile(text)(scope);
elem.replaceWith(newElement);
}
};
})
测试
describe( 'Test home controller', function() {
beforeEach( module( 'home' ) );
describe("myDirective", function() {
var $compile;
beforeEach(inject(function(_$compile_, _$rootScope_){
$compile = _$compile_;
$rootScope = _$rootScope_;
}));
it ("Should transform my text", function() {
element = $compile('<my-directive text="test text" href="http://yahoo.com"></my-directive>')($rootScope);
$rootScope.$digest();
console.log(element.text());
});
});
});
我的测试中的console.log(element.text())吐出一个空字符串...我可以获取它来读取属性...即如果我添加了Expect(element.attr('text'))。toBe (“测试文本”)将会通过,但这显然不能测试我的实际指令,也不是我想要的。
尝试像这样重写指令:
home.directive('myDirective', function($compile) {
return {
restrict: 'E',
scope: {
text: '@',
link: '@'
},
template: '<p>Text: <a ng-href="{{link}}">{{text}}</a></p>',
replace: true
};
});
然后,您可以像这样进行测试:
describe( 'Test home controller', function() {
beforeEach( module( 'home' ) );
describe("myDirective", function() {
var $compile,
$rootScope;
beforeEach(inject(function(_$compile_, _$rootScope_){
$compile = _$compile_;
$rootScope = _$rootScope_;
}));
it ("Should transform my text", function() {
element = $compile('<my-directive text="test text" link="http://yahoo.com"></my-directive>')($rootScope);
$rootScope.$digest();
console.log(element.text());
});
});
});
更新-第二种方法
此更新方法演示了如何与$observe
一起使用链接功能。
尝试像这样重写指令:
home.directive('myDirective', function() {
return {
restrict: 'E',
transclude: true,
template: '<p>Text: <a ng-href="{{link}}">{{text}}</a></p>',
link: function(scope, elm, attrs){
attrs.$observe('text', function(newVal){
scope.text = newVal + " tada";
});
attrs.$observe('link', function(newVal){
scope.link = newVal + '/search?p=foo';
});
}
};
});
然后,您可以像这样进行测试:
describe( 'Test home controller', function() {
beforeEach( module( 'home' ) );
describe("myDirective", function() {
var $compile;
beforeEach(inject(function(_$compile_, _$rootScope_){
$compile = _$compile_;
$rootScope = _$rootScope_;
}));
it ("Should transform my text", function() {
element = $compile('<my-directive text="test text" link="http://yahoo.com"></my-directive>')($rootScope);
$rootScope.$digest();
expect(element.text()).toBe('Text: test text tada');
});
});
});
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