public void Execute_uses_property_of_new_value_if_not_null()
{
// Arrange
var last = _fixture.Create <UserModel>();
var @new = _fixture.Create <UserModel>();
var sut = new CoalescingFilter <UserModel>();
// Act
UserModel actual = sut.Execute(@new, last);
// Assert
actual.Should().NotBeSameAs(@new);
actual.ShouldBeEquivalentTo(@new);
}
public void Execute_relays_to_ICoalescable()
{
// Arrange
var last = _fixture.Create <CoalescableUserModel>();
var @new = new CoalescableUserModel(
last.Id, _fixture.Create <string>(), bio: null);
var sut = new CoalescingFilter <CoalescableUserModel>();
// Act
CoalescableUserModel actual = sut.Execute(@new, last);
// Assert
actual.ShouldBeEquivalentTo(new
{
@new.Id,
@new.UserName,
last.Bio,
last.Website
});
}
public void Execute_uses_property_of_last_value_if_of_new_value_is_null()
{
// Arrange
var last = _fixture.Create <UserModel>();
var @new = new UserModel(
last.Id, _fixture.Create <string>(), bio: null);
var sut = new CoalescingFilter <UserModel>();
// Act
UserModel actual = sut.Execute(@new, last);
// Assert
actual.ShouldBeEquivalentTo(new
{
@new.Id,
@new.UserName,
last.Bio,
last.Website
});
}