我试图设置一个茉莉花测试,以不仅仅跟踪调用一个函数的次数。我想追踪一个函数被某个参数调用多少次。
这是我当前的测试规格:
describe('fizzBuzz', function(){
beforeEach(function(){
// console.log = jasmine.createSpy('log');
spyOn(console, 'log');
fizzBuzz();
})
it("should test for the fizzBuzz's console output", function () {
expect(console.log).toHaveBeenCalledWith('FizzBuzz');
});
it('tracks how many times FizzBuzz is called', function(){
expect(console.log.callCount).toEqual(6);
});
})
在我的第二个规范中,callCount等于console.log被调用的次数。我想跟踪使用参数“ FizzBuzz”调用它的次数。有没有办法将我的第一个规格与我的第二个规格联系起来?我尝试了很多变体,无法解决。
这是我要测试的代码:
var fizzBuzz = function(){
var start = 1;
while(start <= 100){
if(start % 3 === 0 && start % 5 === 0){
console.log('FizzBuzz');
} else if (start % 3 === 0){
console.log('Fizz');
} else if (start % 5 === 0){
console.log('Buzz');
} else {
console.log(start);
}
start++;
}
};
我正在使用console.log参数来确定代码是否正确。例:如果使用参数FizzBuzz在console.log中调用了100次中的6次,则其代码将遵守准则。
更新:
来自Testem的当前错误:
fizzBuzz tracks how many times console.log('FizzBuzz') is called.
✘ TypeError: undefined is not a function
at null.<anonymous> (http://localhost:7357/EJSLoops.js:31:43)
at jasmine.Block.execute (http://localhost:7357/testem/jasmine.js:1064:17)
at jasmine.Queue.next_ (http://localhost:7357/testem/jasmine.js:2096:31)
at jasmine.Queue.start (http://localhost:7357/testem/jasmine.js:2049:8)
at jasmine.Spec.execute (http://localhost:7357/testem/jasmine.js:2376:14)
at jasmine.Queue.next_ (http://localhost:7357/testem/jasmine.js:2096:31)
at onComplete (http://localhost:7357/testem/jasmine.js:2092:18)
at jasmine.Spec.finish (http://localhost:7357/testem/jasmine.js:2350:5)
at null.onComplete (http://localhost:7357/testem/jasmine.js:2377:10)
at jasmine.Queue.next_ (http://localhost:7357/testem/jasmine.js:2106:14)
最佳答案
var fizzBuzz = function(){
var start = 1;
while(start <= 100){
if(start % 3 === 0 && start % 5 === 0){
console.log('FizzBuzz');
} else if (start % 3 === 0){
console.log('Fizz');
} else if (start % 5 === 0){
console.log('Buzz');
} else {
console.log(start);
}
start++;
}
};
describe('fizzBuzz', function(){
beforeEach(function(){
// console.log = jasmine.createSpy('log');
spyOn(console, 'log');
fizzBuzz();
});
it("should test for the fizzBuzz's console output", function () {
expect(console.log).toHaveBeenCalledWith('FizzBuzz');
});
it("tracks how many times console.log('FizzBuzz') is called", function(){
var callcount = console.log.calls.count();
var paramcount = 0;
for(var i = 0; i < callcount; i++){
if(console.log.calls.argsFor(i) == 'FizzBuzz'){
paramcount++;
}
}
expect(paramcount).toEqual(6);
});
});