File: test_patch.py

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debmutate 0.80
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#!/usr/bin/python
# Copyright (C) 2020 Jelmer Vernooij
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

"""Tests for debmutate.patch."""

import os
from io import BytesIO

from debmutate.patch import (
    QuiltSeriesEditor,
    find_common_patch_suffix,
    read_quilt_series,
)

from . import TestCase, TestCaseInTempDir


class ReadSeriesFileTests(TestCase):
    def test_comment(self):
        f = BytesIO(
            b"""\
# This file intentionally left blank.
"""
        )
        self.assertEqual(
            [("This", True, ["file", "intentionally", "left", "blank."])],
            list(read_quilt_series(f)),
        )

    def test_empty(self):
        f = BytesIO(b"\n")
        self.assertEqual([], list(read_quilt_series(f)))

    def test_empty_line(self):
        f = BytesIO(
            b"""\
patch1

patch2
"""
        )
        self.assertEqual(
            [
                ("patch1", False, []),
                ("patch2", False, []),
            ],
            list(read_quilt_series(f)),
        )

    def test_options(self):
        f = BytesIO(
            b"""\
name -p0
name2
"""
        )
        self.assertEqual(
            [
                ("name", False, ["-p0"]),
                ("name2", False, []),
            ],
            list(read_quilt_series(f)),
        )


class FindCommonPatchSuffixTests(TestCase):
    def test_simple(self):
        self.assertEqual(".blah", find_common_patch_suffix(["foo.blah", "series"]))
        self.assertEqual(".patch", find_common_patch_suffix(["foo.patch", "series"]))
        self.assertEqual(".patch", find_common_patch_suffix(["series"]))
        self.assertEqual(".blah", find_common_patch_suffix(["series"], ".blah"))
        self.assertEqual("", find_common_patch_suffix(["series", "foo", "bar"]))
        self.assertEqual(
            ".patch", find_common_patch_suffix(["series", "foo.patch", "bar.patch"])
        )


class SeriesTests(TestCaseInTempDir):
    def setUp(self):
        super().setUp()
        self.build_tree_contents([("debian/",), ("debian/patches/",)])

    def test_edit_nonexistent(self):
        with QuiltSeriesEditor():
            pass
        self.assertFalse(os.path.exists("debian/patches/series"))
        with QuiltSeriesEditor() as editor:
            editor.append("patch1")
        self.assertFileEqual(
            """\
patch1
""",
            "debian/patches/series",
        )

    def test_edit_simple(self):
        self.build_tree_contents(
            [
                (
                    "debian/patches/series",
                    """\
patch1
patch2
""",
                )
            ]
        )
        with QuiltSeriesEditor() as editor:
            self.assertEqual(["patch1", "patch2"], list(editor.patches()))
            editor.append("patch3")
        self.assertFileEqual(
            """\
patch1
patch2
patch3
""",
            "debian/patches/series",
        )

    def test_edit_comment(self):
        self.build_tree_contents(
            [
                (
                    "debian/patches/series",
                    """\
# patch1
patch2
""",
                )
            ]
        )
        with QuiltSeriesEditor() as editor:
            self.assertEqual(["patch2"], list(editor.patches()))
            editor.append("patch3")
            self.assertEqual(["patch2", "patch3"], list(editor.patches()))
        self.assertFileEqual(
            """\
# patch1
patch2
patch3
""",
            "debian/patches/series",
        )

    def test_remove(self):
        self.build_tree_contents(
            [
                (
                    "debian/patches/series",
                    """\
# patch1
patch2
""",
                )
            ]
        )
        with QuiltSeriesEditor() as editor:
            self.assertEqual(["patch2"], list(editor.patches()))
            self.assertRaises(KeyError, editor.remove, "patch3")
            editor.remove("patch2")
            self.assertEqual([], list(editor.patches()))
        self.assertFileEqual(
            """\
# patch1
""",
            "debian/patches/series",
        )