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path: root/tests/check_byte_order_marker_test.py
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from __future__ import annotations

from pre_commit_hooks import check_byte_order_marker


def test_failure(tmpdir):
    f = tmpdir.join('f.txt')
    f.write_text('ohai', encoding='utf-8-sig')
    assert check_byte_order_marker.main((str(f),)) == 1


def test_success(tmpdir):
    f = tmpdir.join('f.txt')
    f.write_text('ohai', encoding='utf-8')
    assert check_byte_order_marker.main((str(f),)) == 0