diff --git a/app/common/error/show-err.factory.spec.js b/app/common/error/show-err.factory.spec.js
new file mode 100644
index 0000000..26621d9
--- /dev/null
+++ b/app/common/error/show-err.factory.spec.js
@@ -0,0 +1,32 @@
+describe('showErr', function(){
+
+    var showErr, Err, $cordovaToast, defaultErrMessage;
+
+    beforeEach(inject(function($injector){
+        showErr = $injector.get('showErr');
+        Err = $injector.get('Err');
+        $cordovaToast = $injector.get('$cordovaToast');
+        defaultErrMessage = new Err(1002).message;
+    }));
+
+    it('should render a native toast with message defined in it', function(){
+        var err = new Err(2000, {ui:true});
+        spyOn($cordovaToast, 'showLongBottom').and.callThrough();
+        showErr(err);
+        expect($cordovaToast.showLongBottom).toHaveBeenCalledWith(err.message);
+    });
+
+    it('should render a native toast with a default message', function(){
+        var err = new Err(2000);
+        spyOn($cordovaToast, 'showLongBottom').and.callThrough();
+        showErr(err);
+        expect($cordovaToast.showLongBottom).toHaveBeenCalledWith(defaultErrMessage);
+    });
+
+    it('should render a native toast with a default message', function(){
+        spyOn($cordovaToast, 'showLongBottom').and.callThrough();
+        showErr('some err');
+        expect($cordovaToast.showLongBottom).toHaveBeenCalledWith(defaultErrMessage);
+    });
+
+});
diff --git a/app/common/error/throw-err.factory.spec.js b/app/common/error/throw-err.factory.spec.js
new file mode 100644
index 0000000..b028fb0
--- /dev/null
+++ b/app/common/error/throw-err.factory.spec.js
@@ -0,0 +1,16 @@
+describe('throwErr', function(){
+
+    var throwErr, Err;
+
+    beforeEach(inject(function($injector){
+        throwErr = $injector.get('throwErr');
+        Err = $injector.get('Err');
+    }));
+
+    it('should throw the given err', function(){
+        var err = new Err(2000);
+        var stub = {throwErr: _.wrap(err, throwErr)};
+        spyOn(stub, 'throwErr').and.callThrough();
+        expect(stub.throwErr).toThrowError(Err);
+    });
+});