can’t get jasmine.any(Function) to work
I’ve created a complete simplified example that replicates the problem I’m getting.
function TestObj() {
var self = this;
self.getStuff = function(aString, callback) {
// TODO
}
}
describe("server communications", function() {
it("it calls the server", function() {
var obj = new TestObj();
obj.getStuff = jasmine.createSpy();
// swap the above line for this and it makes no difference
// spyOn(obj, "getStuff");
var functionVar = function() {
};
obj.getStuff("hello", functionVar);
expect(obj.getStuff).toHaveBeenCalledWith(
[ "hello", jasmine.any(Function) ]);
});
});
Instead of a passing unit test, I get the following output:
Expected spy to have been called with:
[ [ ‘hello’,<jasmine.any(function Function() { [native code] })> ] ]
but was called with:
[ [ ‘hello’, Function ] ]
Why is it not recognising that the functions I pass in (function (){}) are actually functions? Whats that native code stuff it is expecting? Anyone else had this issue with jasmine.any(Function)? Thankyou!
EDITED
I tried using spyOn instead of jasmine.createSpy() and it makes no difference. I tried just a single argument and it works. Introducing the first string argument breaks the jasmine.any(Function) – any ideas?
Ah, I thought you had to enclose the arguments of expect().toHaveBeenCalledWith in an Array[]. Silly me. Here is a working version:
function TestObj() {
var self = this;
self.getStuff = function(aString, callback) {
// TODO
}
}
describe("server communications", function() {
it("it calls the server", function() {
var obj = new TestObj();
obj.getStuff = jasmine.createSpy();
// swap the above line for this and it makes no difference
// spyOn(obj, "getStuff");
var functionVar = function() {
};
obj.getStuff("hello", functionVar);
expect(obj.getStuff).toHaveBeenCalledWith("hello", jasmine.any(Function));
});
});
The Problem is the way you create your spy, using spyOnseems to work as expected:
describe("test", function() {
return it("is function", function() {
var a = {b: function(){}};
spyOn(a, 'b');
a.b(function(){});
expect(a.b).toHaveBeenCalledWith(jasmine.any(Function));
});
});
You could also write your own Matcher to test if the passed value is a function:
describe('test',function(){
it('is function',function(){
this.addMatchers({
isFunction: function() {
return typeof this.actual === 'function';
}
});
expect(function(){}).isFunction();
});
});
EDITED: codified the first code chunk
