public void setup_pipe_line_with_null_expect_null_return()
{
var context = new MathPipeContext(initialValue: 20);
var masterPipe = new AdditionPipe()
.ExtendWith(new SubtractionPipe());
for (int i = 0; i <= 1; i++)
{
if (i == 0)
{
Assert.IsNotNull(masterPipe.NextPipe);
}
else
{
Assert.IsNull(masterPipe.NextPipe);
}
}
}
// 20 + 1 = 21:
// 21 -1 - 1 - 1 = 18
// 18 + 1 + 1 + 1 = 21
// 21 * 2 = 42
// 42 - 1 = 41
public void generate_a_tree_based_pipeline_expect_proper_execution()
{
var context = new MathPipeContext(initialValue: 20);
var masterPipe = new AdditionPipe()
.ExtendWith(
new SubtractionPipe()
.ExtendWith(new SubtractionPipe())
.ExtendWith(new SubtractionPipe())
)
.ExtendWith(
new AdditionPipe()
.ExtendWith(new AdditionPipe())
.ExtendWith(
new AdditionPipe()
.ExtendWith(new MultiplicationPipe())
)
)
.ExtendWith(new SubtractionPipe());
masterPipe.Process(context);
Assert.AreEqual(41, context.Result);
}
