public void RemoveStudent_GivenInvalidId_ShouldNotSaveAndRemoveNone()
{
//Arrange
var data = new List <Student>
{
new Student {
StudentID = 1, FirstMidName = "Peggy", LastName = "Justice", EnrollmentDate = DateTime.Parse("2001-09-01")
},
new Student {
StudentID = 2, FirstMidName = "Meredith", LastName = "Alonso", EnrollmentDate = DateTime.Parse("2002-09-01")
},
};
var testId = 0;
var testStudent = data.SingleOrDefault(s => s.StudentID == testId);
var mockSet = GetQueryableMockDbSet(data.ToArray());
mockSet.Setup(x => x.Remove(testStudent)).Callback(() => data.Remove(testStudent));
var mockContext = new Mock <IDbContext>();
mockContext.Setup(con => con.Students).Returns(mockSet.Object);
mockContext.Setup(con => con.SaveChanges()).Returns(0);
var classUnderTest = new MockEFService(mockContext.Object);
//Act
var result = classUnderTest.RemoveStudent(data.First().StudentID);
//Assert
result.ShouldBe(0);
data.Count.ShouldBe(2);
mockContext.Verify(x => x.SaveChanges(), Times.Once);
}
