Sandbox::https://github.com/QuantStack/git2cpp/blob/main/test/test

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import subprocess

def test_revlist(repo_init_with_commit, commit_env_config, git2cpp_path, tmp_path):

assert (tmp_path / "initial.txt").exists()

p = tmp_path / "initial.txt"

p.write_text("commit2")

subprocess.run([git2cpp_path, "add", "initial.txt"], cwd=tmp_path, check=True)

subprocess.run([git2cpp_path, "commit", "-m", "commit 2"], cwd=tmp_path, check=True)

p.write_text("commit3")

subprocess.run([git2cpp_path, "add", "initial.txt"], cwd=tmp_path, check=True)

subprocess.run([git2cpp_path, "commit", "-m", "commit 3"], cwd=tmp_path, check=True)

cmd = [git2cpp_path, "rev-list", "HEAD", "--max-count", "2"]

p = subprocess.run(cmd, capture_output=True, cwd=tmp_path, text=True)

assert p.returncode == 0

lines = [line for line in p.stdout.splitlines() if line.strip()]

assert len(lines) == 2

assert all(len(oid) == 40 for oid in lines)

assert lines[0] != lines[1]