Files
jasmine/src/core/Spy.js
2017-04-26 13:34:32 -07:00

80 lines
2.7 KiB
JavaScript

getJasmineRequireObj().Spy = function (j$) {
var nextOrder = (function() {
var order = 0;
return function() {
return order++;
};
})();
/**
* _Note:_ Do not construct this directly, use {@link spyOn}, {@link spyOnProperty}, {@link jasmine.createSpy}, or {@link jasmine.createSpyObj}
* @constructor
* @name Spy
*/
function Spy(name, originalFn) {
var numArgs = (typeof originalFn === 'function' ? originalFn.length : 0),
wrapper = makeFunc(numArgs, function () {
return spy.apply(this, Array.prototype.slice.call(arguments));
}),
spyStrategy = new j$.SpyStrategy({
name: name,
fn: originalFn,
getSpy: function () {
return wrapper;
}
}),
callTracker = new j$.CallTracker(),
spy = function () {
/**
* @name Spy.callData
* @property {object} object - `this` context for the invocation.
* @property {number} invocationOrder - Order of the invocation.
* @property {Array} args - The arguments passed for this invocation.
*/
var callData = {
object: this,
invocationOrder: nextOrder(),
args: Array.prototype.slice.apply(arguments)
};
callTracker.track(callData);
var returnValue = spyStrategy.exec.apply(this, arguments);
callData.returnValue = returnValue;
return returnValue;
};
function makeFunc(length, fn) {
switch (length) {
case 1 : return function (a) { return fn.apply(this, arguments); };
case 2 : return function (a,b) { return fn.apply(this, arguments); };
case 3 : return function (a,b,c) { return fn.apply(this, arguments); };
case 4 : return function (a,b,c,d) { return fn.apply(this, arguments); };
case 5 : return function (a,b,c,d,e) { return fn.apply(this, arguments); };
case 6 : return function (a,b,c,d,e,f) { return fn.apply(this, arguments); };
case 7 : return function (a,b,c,d,e,f,g) { return fn.apply(this, arguments); };
case 8 : return function (a,b,c,d,e,f,g,h) { return fn.apply(this, arguments); };
case 9 : return function (a,b,c,d,e,f,g,h,i) { return fn.apply(this, arguments); };
default : return function () { return fn.apply(this, arguments); };
}
}
for (var prop in originalFn) {
if (prop === 'and' || prop === 'calls') {
throw new Error('Jasmine spies would overwrite the \'and\' and \'calls\' properties on the object being spied upon');
}
wrapper[prop] = originalFn[prop];
}
wrapper.and = spyStrategy;
wrapper.calls = callTracker;
return wrapper;
}
return Spy;
};