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var Fake = (function(){
var fake = function(){
_stubs = [];
this.stub = function(method){
if(_stubs[method] === undefined) {
_stubs[method] = new Stub(this, method);
}
return _stubs[method];
};
};
return function(){
return new fake();
};
})();
var Stub = (function(){
var stub = function(target, method){
this.arguments = [];
this.with = function(){
var args = new Arguments(this, target, method, arguments);
this.arguments.push(args);
return args;
};
this.andReturn = function(return_value){
target[method] = function(){
return return_value;
};
};
this.find_match_for = function(args){
for (var i = 0; i < this.arguments.length; i += 1) {
var matcher = this.arguments[i];
if(matcher.matches(args)){
return matcher;
}
}
throw "Matcher not found.";
};
};
return function(target, method){
return new stub(target, method);
};
})();
var Arguments = (function(){
var Arguments = function(stub, target, method, expected_args){
this.andReturn = function(return_value){
this.return_value = return_value;
target[method] = function(){
return stub.find_match_for(arguments).return_value;
};
};
this.matches = function(args){
var result = expected_args === args;
for (var i = 0; i < expected_args.length; i += 1) {
if(args[i] !== expected_args[i]){
return false;
}
}
return true;
};
};
return function(stub, target, method, expected_args){
return new Arguments(stub, target, method, expected_args);
};
})();
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