File: test_ocaml.py

package info (click to toggle)
diffoscope 240%2Bdeb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 11,036 kB
  • sloc: python: 16,298; sh: 113; makefile: 97; xml: 36; javascript: 2
file content (82 lines) | stat: -rw-r--r-- 2,515 bytes parent folder | download | duplicates (4)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
#
# diffoscope: in-depth comparison of files, archives, and directories
#
# Copyright © 2018-2021 Chris Lamb <lamby@debian.org>
#
# diffoscope 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 3 of the License, or
# (at your option) any later version.
#
# diffoscope 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 diffoscope.  If not, see <https://www.gnu.org/licenses/>.

import pytest
import subprocess

from diffoscope.comparators.ocaml import OcamlInterfaceFile
from diffoscope.comparators.binary import FilesystemFile
from diffoscope.comparators.utils.specialize import specialize

from ..utils.data import assert_diff_startswith
from ..utils.tools import skip_unless_tool_is_at_least
from ..utils.nonexisting import assert_non_existing


def ocaml_fixture(prefix):
    @pytest.fixture
    def cmi(tmpdir):
        input_ = str(tmpdir.join("{}.mli".format(prefix)))
        output = str(tmpdir.join("{}.cmi".format(prefix)))

        with open(input_, "w"):
            pass

        subprocess.check_call(("ocamlc", "-c", input_))

        return specialize(FilesystemFile(output))

    return cmi


cmi1 = ocaml_fixture("test1")
cmi2 = ocaml_fixture("test2")


def ocaml_version():
    try:
        out = subprocess.check_output(["ocaml", "-version"])
    except subprocess.CalledProcessError as e:
        out = e.output
    return out.decode("utf-8").split()[-1]


@skip_unless_tool_is_at_least("ocamlobjinfo", ocaml_version, "4.11")
def test_identification(cmi1):
    assert isinstance(cmi1, OcamlInterfaceFile)


@pytest.fixture
def differences(cmi1, cmi2):
    return cmi1.compare(cmi2).details


@skip_unless_tool_is_at_least("ocamlobjinfo", ocaml_version, "4.11")
def test_no_differences(cmi1):
    difference = cmi1.compare(cmi1)
    assert difference is None


@skip_unless_tool_is_at_least("ocamlobjinfo", ocaml_version, "4.11")
def test_diff(differences):
    assert_diff_startswith(differences[0], "ocaml_expected_diff")


@skip_unless_tool_is_at_least("ocamlobjinfo", ocaml_version, "4.11")
def test_compare_non_existing(monkeypatch, cmi1):
    assert_non_existing(monkeypatch, cmi1, has_null_source=False)