public void IsDangNhapTest(string name, string pass) { mockIDataProvider.Setup(x => x.ExecuteScalar(It.IsNotNull <string>(), new object[] { name })).Returns(pass); var result = dangNhapBUS.IsDangNhap(name, pass); var resultFalse = dangNhapBUS.IsDangNhap(name, "passs"); Assert.True(result); Assert.False(resultFalse); mockIDataProvider.VerifyAll(); }