[Reproducible-commits] [debbindiff] 04/07: Add tests for binary_fallback

[Jérémy Bobbio]

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lunar pushed a commit to branch master
in repository debbindiff.

commit edf62f252a32a0d87bd0b4e92ff7c2157728aaac
Author: Jérémy Bobbio <lunar at debian.org>
Date:   Wed Jun 24 11:27:39 2015 +0000

    Add tests for binary_fallback
---
 tests/comparators/test_utils.py | 81 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 81 insertions(+)

diff --git a/tests/comparators/test_utils.py b/tests/comparators/test_utils.py
new file mode 100644
index 0000000..722202f
--- /dev/null
+++ b/tests/comparators/test_utils.py
@@ -0,0 +1,81 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+#
+# debbindiff: highlight differences between two builds of Debian packages
+#
+# Copyright © 2015 Jérémy Bobbio <lunar at debian.org>
+#
+# debbindiff 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.
+#
+# debbindiff 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 debbindiff.  If not, see <http://www.gnu.org/licenses/>.
+
+import os.path
+import shutil
+import subprocess
+import pytest
+from debbindiff import tool_required
+from debbindiff.comparators.utils import binary_fallback
+from debbindiff.difference import Difference
+
+def test_same_binaries():
+    @binary_fallback
+    def mock_comparator(path1, path2, source=None):
+        raise Exception('should not be run')
+    assert mock_comparator(__file__, __file__) == []
+
+TEST_FILE1_PATH = os.path.join(os.path.dirname(__file__), '../data/text_unicode1')
+TEST_FILE2_PATH = os.path.join(os.path.dirname(__file__), '../data/text_unicode2')
+
+def test_return_differences():
+    d = Difference('diff', TEST_FILE1_PATH, TEST_FILE2_PATH, source='source')
+    @binary_fallback
+    def mock_comparator(path1, path2, source=None):
+        return [d]
+    differences = mock_comparator(TEST_FILE1_PATH, TEST_FILE2_PATH)
+    assert len(differences) == 1
+    assert differences[0].details == [d]
+
+def test_fallback():
+    @binary_fallback
+    def mock_comparator(path1, path2, source=None):
+        return []
+    differences = mock_comparator(TEST_FILE1_PATH, TEST_FILE2_PATH)
+    expected_diff = open(os.path.join(os.path.dirname(__file__), '../data/text_unicode_binary_fallback')).read()
+    assert len(differences) == 1
+    assert 'yet data differs' in differences[0].comment
+    assert differences[0].unified_diff == expected_diff
+
+def test_process_failed():
+    output = 'Free Jeremy Hammond'
+    @binary_fallback
+    def mock_comparator(path1, path2, source=None):
+        subprocess.check_output(['sh', '-c', 'echo "%s"; exit 42' % output], shell=False)
+        raise Exception('should not be run')
+    differences = mock_comparator(TEST_FILE1_PATH, TEST_FILE2_PATH)
+    expected_diff = open(os.path.join(os.path.dirname(__file__), '../data/text_unicode_binary_fallback')).read()
+    assert len(differences) == 1
+    assert output in differences[0].comment
+    assert '42' in differences[0].comment
+    assert differences[0].unified_diff == expected_diff
+
+def test_tool_not_found(monkeypatch):
+    monkeypatch.setattr('debbindiff.RequiredToolNotFound.get_package', lambda _: 'some-package')
+    @binary_fallback
+    @tool_required('nonexistent')
+    def mock_comparator(path1, path2, source=None):
+        raise Exception('should not be run')
+    differences = mock_comparator(TEST_FILE1_PATH, TEST_FILE2_PATH)
+    expected_diff = open(os.path.join(os.path.dirname(__file__), '../data/text_unicode_binary_fallback')).read()
+    assert len(differences) == 1
+    assert 'nonexistent' in differences[0].comment
+    assert 'some-package' in differences[0].comment
+    assert differences[0].unified_diff == expected_diff

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