public void make_sure_that_the_constructor_initializes_everything_ok()
{
var cmd = Substitute.For<IDbCommand>();
var reader = Substitute.For<IDataReader>();
var mapper = Substitute.For<IEntityMapper<string>>();
var sut = new AdoNetEntityEnumerator<string>(cmd, reader, mapper, true);
cmd.DidNotReceiveWithAnyArgs().ExecuteReader();
}
public void make_sure_that_the_constructor_initializes_everything_ok()
{
var cmd = Substitute.For <IDbCommand>();
var reader = Substitute.For <IDataReader>();
var mapper = Substitute.For <IEntityMapper <string> >();
var sut = new AdoNetEntityEnumerator <string>(cmd, reader, mapper, true);
cmd.DidNotReceiveWithAnyArgs().ExecuteReader();
}
public void movenext_should_NOT_execute_the_command_when_called_for_the_First_time_if_it_was_passed_in_the_constructor()
{
var cmd = Substitute.For<IDbCommand>();
var reader = Substitute.For<IDataReader>();
var mapper = Substitute.For<IEntityMapper<string>>();
var sut = new AdoNetEntityEnumerator<string>(cmd, reader, mapper, true);
sut.MoveNext();
cmd.DidNotReceive().ExecuteReader();
}
public void should_dispose_command()
{
var cmd = Substitute.For <IDbCommand>();
var reader = Substitute.For <IDataReader>();
var mapper = Substitute.For <IEntityMapper <string> >();
var sut = new AdoNetEntityEnumerator <string>(cmd, reader, mapper, true);
sut.Dispose();
cmd.Received().Dispose();
}
public void dispose_reader_if_it_has_been_specified()
{
var cmd = Substitute.For <IDbCommand>();
var reader = Substitute.For <IDataReader>();
var mapper = Substitute.For <IEntityMapper <string> >();
var sut = new AdoNetEntityEnumerator <string>(cmd, reader, mapper, true);
sut.Dispose();
reader.Received().Dispose();
}
public void movenext_should_execute_reader_Read()
{
var cmd = Substitute.For <IDbCommand>();
var reader = Substitute.For <IDataReader>();
var mapper = Substitute.For <IEntityMapper <string> >();
var sut = new AdoNetEntityEnumerator <string>(cmd, reader, mapper, true);
var actual = sut.MoveNext();
reader.Received().Read();
actual.Should().BeFalse();
}
public void Reset_is_not_allowed_as_we_cant_move_backwards_with_a_reader()
{
var cmd = Substitute.For<IDbCommand>();
var reader = Substitute.For<IDataReader>();
var mapper = Substitute.For<IEntityMapper<string>>();
reader.Read();
var sut = new AdoNetEntityEnumerator<string>(cmd, reader, mapper, true);
Action actual = sut.Reset;
actual.ShouldThrow<InvalidOperationException>();
}
public void movenext_should_NOT_execute_the_command_when_called_for_the_First_time_if_it_was_passed_in_the_constructor()
{
var cmd = Substitute.For <IDbCommand>();
var reader = Substitute.For <IDataReader>();
var mapper = Substitute.For <IEntityMapper <string> >();
var sut = new AdoNetEntityEnumerator <string>(cmd, reader, mapper, true);
sut.MoveNext();
cmd.DidNotReceive().ExecuteReader();
}
public void movenext_should_execute_reader_Read()
{
var cmd = Substitute.For<IDbCommand>();
var reader = Substitute.For<IDataReader>();
var mapper = Substitute.For<IEntityMapper<string>>();
var sut = new AdoNetEntityEnumerator<string>(cmd, reader, mapper, true);
var actual = sut.MoveNext();
reader.Received().Read();
actual.Should().BeFalse();
}
public void movenext_should_return_Value_from_Read()
{
var cmd = Substitute.For<IDbCommand>();
var reader = Substitute.For<IDataReader>();
var mapper = Substitute.For<IEntityMapper<string>>();
reader.Read().Returns(true);
var sut = new AdoNetEntityEnumerator<string>(cmd, reader, mapper, true);
var actual = sut.MoveNext();
actual.Should().BeTrue();
}
public void may_not_call_Current_before_MoveNext_as_we_need_to_move_to_the_first_record_first()
{
var cmd = Substitute.For <IDbCommand>();
var reader = Substitute.For <IDataReader>();
var mapper = Substitute.For <IEntityMapper <string> >();
object tmp = null;
var sut = new AdoNetEntityEnumerator <string>(cmd, reader, mapper, false);
Action actual = () => tmp = sut.Current;
actual.ShouldThrow <InvalidOperationException>();
}
public void movenext_should_return_Value_from_Read()
{
var cmd = Substitute.For <IDbCommand>();
var reader = Substitute.For <IDataReader>();
var mapper = Substitute.For <IEntityMapper <string> >();
reader.Read().Returns(true);
var sut = new AdoNetEntityEnumerator <string>(cmd, reader, mapper, true);
var actual = sut.MoveNext();
actual.Should().BeTrue();
}
public void Reset_is_not_allowed_as_we_cant_move_backwards_with_a_reader()
{
var cmd = Substitute.For <IDbCommand>();
var reader = Substitute.For <IDataReader>();
var mapper = Substitute.For <IEntityMapper <string> >();
reader.Read();
var sut = new AdoNetEntityEnumerator <string>(cmd, reader, mapper, true);
Action actual = sut.Reset;
actual.ShouldThrow <InvalidOperationException>();
}
public void should_NOT_dispose_connection_if_its_nots_owned()
{
var connection = Substitute.For <IDbConnection>();
var cmd = Substitute.For <IDbCommand>();
cmd.Connection.Returns(connection);
var reader = Substitute.For <IDataReader>();
var mapper = Substitute.For <IEntityMapper <string> >();
var sut = new AdoNetEntityEnumerator <string>(cmd, reader, mapper, false);
sut.Dispose();
connection.DidNotReceive().Dispose();
}
public void map_a_record_first_time_Current_is_invoked()
{
var cmd = Substitute.For <IDbCommand>();
var reader = Substitute.For <IDataReader>();
var mapper = Substitute.For <IEntityMapper <Wrapper> >();
var wrapper = new Wrapper();
var expected = "Hello";
mapper.Create(reader).Returns(wrapper);
mapper.Map(reader, Arg.Do <object>(x => wrapper.Value = expected));
var sut = new AdoNetEntityEnumerator <Wrapper>(cmd, reader, mapper, false);
sut.MoveNext();
var actual = sut.Current;
actual.Value.Should().Be(expected);
}
public void only_populate_Current_once_even_if_called_multiple_times_for_the_same_entity()
{
var cmd = Substitute.For <IDbCommand>();
var reader = Substitute.For <IDataReader>();
var mapper = Substitute.For <IEntityMapper <Wrapper> >();
var expected = "Hello";
mapper.Map(reader, Arg.Do <object>(x => ((Wrapper)x).Value = expected));
mapper.Create(reader).Returns(new Wrapper());
var sut = new AdoNetEntityEnumerator <Wrapper>(cmd, reader, mapper, false);
sut.MoveNext();
sut.Current.Should().NotBeNull();
mapper.ClearReceivedCalls();
var actual = sut.Current;
mapper.DidNotReceiveWithAnyArgs().Map(null, null);
}
public void only_populate_Current_once_even_if_called_multiple_times_for_the_same_entity()
{
var cmd = Substitute.For<IDbCommand>();
var reader = Substitute.For<IDataReader>();
var mapper = Substitute.For<IEntityMapper<Wrapper>>();
var expected = "Hello";
mapper.Map(reader, Arg.Do<object>(x => ((Wrapper)x).Value = expected));
mapper.Create(reader).Returns(new Wrapper());
var sut = new AdoNetEntityEnumerator<Wrapper>(cmd, reader, mapper, false);
sut.MoveNext();
sut.Current.Should().NotBeNull();
mapper.ClearReceivedCalls();
var actual = sut.Current;
mapper.DidNotReceiveWithAnyArgs().Map(null, null);
}
public void may_not_call_Current_before_MoveNext_as_we_need_to_move_to_the_first_record_first()
{
var cmd = Substitute.For<IDbCommand>();
var reader = Substitute.For<IDataReader>();
var mapper = Substitute.For<IEntityMapper<string>>();
object tmp = null;
var sut = new AdoNetEntityEnumerator<string>(cmd, reader, mapper, false);
Action actual = () => tmp = sut.Current;
actual.ShouldThrow<InvalidOperationException>();
}
public void should_dispose_command()
{
var cmd = Substitute.For<IDbCommand>();
var reader = Substitute.For<IDataReader>();
var mapper = Substitute.For<IEntityMapper<string>>();
var sut = new AdoNetEntityEnumerator<string>(cmd, reader, mapper, true);
sut.Dispose();
cmd.Received().Dispose();
}
public void dispose_reader_if_it_has_been_specified()
{
var cmd = Substitute.For<IDbCommand>();
var reader = Substitute.For<IDataReader>();
var mapper = Substitute.For<IEntityMapper<string>>();
var sut = new AdoNetEntityEnumerator<string>(cmd, reader, mapper, true);
sut.Dispose();
reader.Received().Dispose();
}
public void should_NOT_dispose_connection_if_its_nots_owned()
{
var connection = Substitute.For<IDbConnection>();
var cmd = Substitute.For<IDbCommand>();
cmd.Connection.Returns(connection);
var reader = Substitute.For<IDataReader>();
var mapper = Substitute.For<IEntityMapper<string>>();
var sut = new AdoNetEntityEnumerator<string>(cmd, reader, mapper, false);
sut.Dispose();
connection.DidNotReceive().Dispose();
}
public void map_a_record_first_time_Current_is_invoked()
{
var cmd = Substitute.For<IDbCommand>();
var reader = Substitute.For<IDataReader>();
var mapper = Substitute.For<IEntityMapper<Wrapper>>();
var wrapper = new Wrapper();
var expected = "Hello";
mapper.Create(reader).Returns(wrapper);
mapper.Map(reader, Arg.Do<object>(x => wrapper.Value = expected));
var sut = new AdoNetEntityEnumerator<Wrapper>(cmd, reader, mapper, false);
sut.MoveNext();
var actual = sut.Current;
actual.Value.Should().Be(expected);
}
