public ProgramRunner(IBuildSnapshots builder, IWriteSnapshots writer)
{
_builder = builder;
_writer = writer;
}
private void before_each()
{
_steps = A.Fake <IBuildSnapshotSteps>(x => x.Strict());
_environment = A.Fake <ISnapshotEnvironment>(x => x.Strict());
_builder = new SnapshotBuilder(_environment, _steps);
}