public async Task GetById_ShouldReturnMembership_WhenIdMatches()
{
// Arrange
const int membershipId = 2;
IEnumerable <GroupMembership> databaseMemberships = new[]
{
new GroupMembership {
GroupMembershipId = 1, GroupId = 1, UserId = 1
},
new GroupMembership {
GroupMembershipId = 2, GroupId = 1, UserId = 2
},
new GroupMembership {
GroupMembershipId = 3, GroupId = 2, UserId = 1
},
new GroupMembership {
GroupMembershipId = 4, GroupId = 3, UserId = 1
},
};
DbSet <GroupMembership> membershipDbSetMock = databaseMemberships
.AsQueryable()
.BuildMockDbSet()
.Object;
Mock <IChatContext> contextMock = new Mock <IChatContext>();
contextMock
.Setup(m => m.GroupMemberships)
.Returns(membershipDbSetMock);
GroupMembershipRepository repository = new GroupMembershipRepository(contextMock.Object);
// Act
GroupMembership membership = await repository
.GetById(membershipId)
.SingleOrDefaultAsync();
// Assert
Assert.NotNull(membership);
Assert.Equal(membershipId, membership.GroupMembershipId);
}
public async Task GetById_ShouldReturnEmptyQueryable_WhenIdDoesNotMatch()
{
// Arrange
const int membershipId = 43289;
IEnumerable <GroupMembership> databaseMemberships = new[]
{
new GroupMembership {
GroupMembershipId = 1, GroupId = 1, UserId = 1
},
new GroupMembership {
GroupMembershipId = 2, GroupId = 1, UserId = 2
},
new GroupMembership {
GroupMembershipId = 3, GroupId = 2, UserId = 1
},
new GroupMembership {
GroupMembershipId = 4, GroupId = 3, UserId = 1
},
};
DbSet <GroupMembership> membershipDbSetMock = databaseMemberships
.AsQueryable()
.BuildMockDbSet()
.Object;
Mock <IChatContext> contextMock = new Mock <IChatContext>();
contextMock
.Setup(m => m.GroupMemberships)
.Returns(membershipDbSetMock);
GroupMembershipRepository repository = new GroupMembershipRepository(contextMock.Object);
// Act
IEnumerable <GroupMembership> memberships = await repository
.GetById(membershipId)
.ToListAsync();
// Assert
Assert.NotNull(memberships);
Assert.Empty(memberships);
}