dvc/testing/benchmarks/cli/commands/test_diff.py
def test_diff(bench_dvc, tmp_dir, scm, dvc, make_dataset):
dataset = make_dataset(cache=True, files=True, dvcfile=True, commit=True)
bench_dvc("diff")
bench_dvc("diff", name="noop")
(dataset / "new").write_text("new")
bench_dvc("diff", name="changed")
bench_dvc("diff", name="changed-noop")