diff --git a/spec/core/matchers/toHaveBeenCalledTimesSpec.js b/spec/core/matchers/toHaveBeenCalledTimesSpec.js
index 3acef36e..8ea7e5cf 100644
--- a/spec/core/matchers/toHaveBeenCalledTimesSpec.js
+++ b/spec/core/matchers/toHaveBeenCalledTimesSpec.js
@@ -1,81 +1,117 @@
-describe("toHaveBeenCalledTimes", function() {
-  it("passes when the actual matches the expected", function() {
-    var matcher = jasmineUnderTest.matchers.toHaveBeenCalledTimes(),
-      calledSpy = jasmineUnderTest.createSpy('called-spy'),
-      result;
-    calledSpy();
+describe("toHaveBeenCalledTimes", function () {
 
-    result = matcher.compare(calledSpy, 1);
-    expect(result.pass).toBe(true);
-  });
+    it("passes when the actual 0 matches the expected 0 ", function () {
+        var matcher = jasmineUnderTest.matchers.toHaveBeenCalledTimes(),
+            calledSpy = jasmineUnderTest.createSpy('called-spy'),
+            result;
+        result = matcher.compare(calledSpy, 0);
+        expect(result.pass).toBeTruthy();
+    });
+    it("passes when the actual matches the expected", function () {
+        var matcher = jasmineUnderTest.matchers.toHaveBeenCalledTimes(),
+            calledSpy = jasmineUnderTest.createSpy('called-spy'),
+            result;
+        calledSpy();
 
-  it("fails when expected numbers is not supplied", function(){
-     var matcher = jasmineUnderTest.matchers.toHaveBeenCalledTimes(),
-      spy = jasmineUnderTest.createSpy('spy'),
-      result;
+        result = matcher.compare(calledSpy, 1);
+        expect(result.pass).toBeTruthy();
+    });
 
-    spy();
-     expect(function() {
-       matcher.compare(spy);
-     }).toThrowError('Expected times failed is required as an argument.');
-  });
+    it("fails when expected number is not supplied", function () {
+        var matcher = jasmineUnderTest.matchers.toHaveBeenCalledTimes(),
+            spy = jasmineUnderTest.createSpy('spy'),
+            result;
 
-  it("fails when the actual was called less than the expected", function() {
-    var matcher = jasmineUnderTest.matchers.toHaveBeenCalledTimes(),
-      uncalledSpy = jasmineUnderTest.createSpy('uncalled spy'),
-      result;
+        spy();
+        expect(function () {
+            matcher.compare(spy);
+        }).toThrowError('The expected times failed is a required argument and must be a number.');
+    });
+    
+    it("fails when expected number is a string", function () {
+        var matcher = jasmineUnderTest.matchers.toHaveBeenCalledTimes(),
+            spy = jasmineUnderTest.createSpy('spy'),
+            result;
 
-    result = matcher.compare(uncalledSpy, 2);
-    expect(result.pass).toBe(false);
-  });
+        spy();
+        expect(function () {
+            matcher.compare(spy, "1");
+        }).toThrowError('The expected times failed is a required argument and must be a number.');
+    });
 
-  it("fails when the actual was called more than expected", function() {
-    var matcher = jasmineUnderTest.matchers.toHaveBeenCalledTimes(),
-      uncalledSpy = jasmineUnderTest.createSpy('uncalled spy'),
-      result;
+    it("fails when the actual was called less than the expected", function () {
+        var matcher = jasmineUnderTest.matchers.toHaveBeenCalledTimes(),
+            uncalledSpy = jasmineUnderTest.createSpy('uncalled spy'),
+            result;
 
-    uncalledSpy();
-    uncalledSpy();
+        result = matcher.compare(uncalledSpy, 2);
+        expect(result.pass).toBeFalsy();
+    });
 
-    result = matcher.compare(uncalledSpy, 1);
-    expect(result.pass).toBe(false);
-  });
+    it("fails when the actual was called more than expected", function () {
+        var matcher = jasmineUnderTest.matchers.toHaveBeenCalledTimes(),
+            uncalledSpy = jasmineUnderTest.createSpy('uncalled spy'),
+            result;
 
-  it("throws an exception when the actual is not a spy", function() {
-    var matcher = jasmineUnderTest.matchers.toHaveBeenCalledTimes(),
-      fn = function() {};
+        uncalledSpy();
+        uncalledSpy();
 
-    expect(function() {
-      matcher.compare(fn);
-    }).toThrowError("Expected a spy, but got Function.");
-  });
+        result = matcher.compare(uncalledSpy, 1);
+        expect(result.pass).toBeFalsy();
+    });
 
-  it("has a custom message on failure that tells it was called only once", function() {
-    var matcher = jasmineUnderTest.matchers.toHaveBeenCalledTimes(),
-      spy = jasmineUnderTest.createSpy('sample-spy'),
-      result;
-    spy();
-    spy();
-    spy();
-    spy();
+    it("throws an exception when the actual is not a spy", function () {
+        var matcher = jasmineUnderTest.matchers.toHaveBeenCalledTimes(),
+            fn = function () { };
 
-    result = matcher.compare(spy, 1);
+        expect(function () {
+            matcher.compare(fn);
+        }).toThrowError("Expected a spy, but got Function.");
+    });
 
-    expect(result.message).toEqual('Expected spy sample-spy to have been called once. It was called ' +  4 + ' times.');
-  });
+    it("has a custom message on failure that tells it was called only once", function () {
+        var matcher = jasmineUnderTest.matchers.toHaveBeenCalledTimes(),
+            spy = jasmineUnderTest.createSpy('sample-spy'),
+            result;
+        spy();
+        spy();
+        spy();
+        spy();
 
-  it("has a custom message on failure that tells how many times it was called", function() {
-    var matcher = jasmineUnderTest.matchers.toHaveBeenCalledTimes(),
-      spy = jasmineUnderTest.createSpy('sample-spy'),
-      result;
-    spy();
-    spy();
-    spy();
-    spy();
+        result = matcher.compare(spy, 1);
 
-    result = matcher.compare(spy, 2);
+        expect(result.message).toEqual('Expected spy sample-spy to have been called once. It was called ' + 4 + ' times.');
+    });
 
-    expect(result.message).toEqual('Expected spy sample-spy to have been called 2 times. It was called ' +  4 + ' times.');
-  });
+    it("has a custom message on failure that tells how many times it was called", function () {
+        var matcher = jasmineUnderTest.matchers.toHaveBeenCalledTimes(),
+            spy = jasmineUnderTest.createSpy('sample-spy'),
+            result;
+        spy();
+        spy();
+        spy();
+        spy();
+
+        result = matcher.compare(spy, 2);
+
+        expect(result.message).toEqual('Expected spy sample-spy to have been called 2 times. It was called ' + 4 + ' times.');
+    });
+    /*
+    it("should work when chained to expect", function(){
+        // test for the way we'll use it in real code
+        var foo = {
+            func: function(){}
+        };
+        spyOn(foo, 'func');
+        expect(foo.func).toHaveBeenCalledTimes(0);
+        foo.func();
+        expect(foo.func).toHaveBeenCalledTimes(1);
+        foo.func();
+        foo.func();
+        foo.func();
+        expect(foo.func).toHaveBeenCalledTimes(4);
+        foo.func.calls.reset();
+        expect(foo.func).toHaveBeenCalledTimes(0);
+    });*/
 });
 
diff --git a/src/core/matchers/toHaveBeenCalledTimes..js b/src/core/matchers/toHaveBeenCalledTimes.js
similarity index 87%
rename from src/core/matchers/toHaveBeenCalledTimes..js
rename to src/core/matchers/toHaveBeenCalledTimes.js
index b59cc4f4..597968fd 100644
--- a/src/core/matchers/toHaveBeenCalledTimes..js
+++ b/src/core/matchers/toHaveBeenCalledTimes.js
@@ -10,8 +10,8 @@ getJasmineRequireObj().toHaveBeenCalledTimes = function(j$) {
         var args = Array.prototype.slice.call(arguments, 0),
           result = { pass: false };
 
-        if(!expected){
-          throw new Error('Expected times failed is required as an argument.');
+        if (!j$.isNumber_(expected)){
+          throw new Error('The expected times failed is a required argument and must be a number.');
         }
 
         actual = args[0];
@@ -27,4 +27,4 @@ getJasmineRequireObj().toHaveBeenCalledTimes = function(j$) {
   }
 
   return toHaveBeenCalledTimes;
-};
+};
\ No newline at end of file