public void SetSuccessor_cannot_be_called_twice()
{
var blockBuilder = new BasicBlockGraphBuilder().GetInitialBlockBuilder();
Assert.That(() => blockBuilder.SetSuccessor(0), Throws.Nothing);
Assert.That(blockBuilder.DefaultSuccessor, Is.EqualTo(0));
Assert.That(() => blockBuilder.SetSuccessor(0), Throws.InvalidOperationException);
}
public void Block_cannot_be_appended_to_after_setting_successor()
{
var blockBuilder = new BasicBlockGraphBuilder().GetInitialBlockBuilder();
blockBuilder.SetSuccessor(0);
blockBuilder.AppendInstruction(Opcode.Nop, 0, 0, 0);
Assert.That(blockBuilder.Instructions, Is.Empty);
}
public void SetSuccessor_does_nothing_if_return_exists()
{
var blockBuilder = new BasicBlockGraphBuilder().GetInitialBlockBuilder();
blockBuilder.AppendInstruction(Opcode.Return, 0, 0, 0);
Assert.That(() => blockBuilder.SetSuccessor(0), Throws.Nothing);
Assert.That(blockBuilder.DefaultSuccessor, Is.EqualTo(-1));
}