iwo*_*uff 10 javascript jasmine karma-jasmine
我喜欢 jasmine.objectContaining 提供的部分对象匹配:
mySpy({
foo: 'bar',
bar: 'baz'
});
expect(mySpy).toHaveBeenCalledWith(jasmine.objectContaining({ foo: 'bar' }));
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有茉莉花相当于字符串吗?大致如下:
mySpy('fooBar', 'barBaz');
expect(mySpy).toHaveBeenCalledWith(jasmine.stringContaining('foo'), jasmine.any(String));
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我想看看一个特定的论点,而不诉诸 mySpy.calls 的断言:
mySpy('fooBar', 'barBaz');
expect(mySpy.calls.argsFor(0)[0]).toContain('foo');
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Riv*_*ver 12
从 Jasmine 2.2 开始,您可以使用jasmine.stringMatching。
对于你的例子:
mySpy('fooBar', 'barBaz');
expect(mySpy).toHaveBeenCalledWith(jasmine.stringMatching('foo'), jasmine.any(String));
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请注意,参数是要匹配的正则表达式。对于简单的“包含”,直接传递字符串(使用特殊的正则表达式字符转义),但它可以做更多的事情:
// Expect first parameter to be a string *starting* with "foo"
expect(mySpy).toHaveBeenCalledWith(jasmine.stringMatching(/^foo/), jasmine.any(String));
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茉莉花里没有这样的东西。但您可以利用在 Jasmine 中创建自定义匹配器的功能来实现此目的。
这是一个小工作示例:
您的工厂
angular.module('CustomMatchers', []).factory('AnotherService', function(){
return{ mySpy: function(a, b){ } }
});
angular.module('CustomMatchers').factory('MyService', function(AnotherService){
return{
myFunction: function(a, b){
AnotherService.mySpy(a, b);
}
}
});
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使用自定义匹配器的测试用例
describe('Service: MyService', function() {
beforeEach(module('CustomMatchers'));
describe('service: MyService', function() {
beforeEach(inject(function(_MyService_, _AnotherService_) {
MyService = _MyService_;
AnotherService = _AnotherService_;
spyOn(AnotherService, 'mySpy');
jasmine.addMatchers({
toContain: function() {
return {
compare: function(actual, expected){
var result = { pass: actual.includes(expected) };
if(result.pass) {
result.message = "Success: Expected first arguments '" + actual + "' to contain '"+ expected +"'.";
} else {
result.message = "Failour: Expected first arguments '" + actual + "' to contain '"+ expected +"'.";
}
return result;
}
}
}
});
}));
it('expect AnotherService.mySpy toHaveBeenCalled', function() {
MyService.myFunction('fooBar', 'barBaz');
//This should pass
expect(AnotherService.mySpy.calls.argsFor(0)[0]).toContain('foo');
//This should fail
expect(AnotherService.mySpy.calls.argsFor(0)[0]).toContain('helloWorld');
});
});
});
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希望这可以帮助!
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