coala-analyzer /
coala
| 1 | import json |
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| 6 | from coalib.results.Diff import ConflictError, Diff, SourceRange |
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| 7 | |||
| 8 | |||
| 9 | class DiffTest(unittest.TestCase): |
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|
Comprehensibility
Best Practice
introduced
by
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| 10 | |||
| 11 | def setUp(self): |
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| 12 | self.file = ["1", "2", "3", "4"] |
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| 13 | self.uut = Diff(self.file) |
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| 14 | |||
| 15 | def test_add_lines(self): |
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| 16 | self.uut.add_lines(0, []) |
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| 18 | self.uut.add_lines(0, []) |
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| 19 | |||
| 20 | # No double addition allowed |
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| 21 | self.assertRaises(ConflictError, self.uut.add_lines, 0, ["t"]) |
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| 22 | self.assertRaises(ValueError, self.uut.add_lines, -1, ["t"]) |
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| 23 | self.assertRaises(TypeError, self.uut.add_lines, "str", ["t"]) |
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| 24 | |||
| 25 | def test_delete_line(self): |
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| 26 | self.uut.delete_line(1) |
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| 27 | self.uut.delete_line(1) # Double deletion possible without conflict |
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| 28 | self.assertRaises(ValueError, self.uut.delete_line, 0) |
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| 29 | |||
| 30 | def test_change_line(self): |
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| 31 | self.assertEqual(len(self.uut), 0) |
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| 32 | self.uut.change_line(2, "1", "2") |
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| 33 | self.assertEqual(len(self.uut), 1) |
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| 34 | self.assertRaises(ConflictError, self.uut.change_line, 2, "1", "3") |
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| 35 | self.assertRaises(ValueError, self.uut.change_line, 0, "1", "2") |
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| 36 | |||
| 37 | self.uut.delete_line(1) |
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| 38 | # Line was deleted, unchangeable |
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| 44 | self.uut.add_lines(0, ["test"]) |
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| 45 | affected_code = [ |
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| 46 | SourceRange.from_values("file", start_line=1)] |
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| 47 | self.assertEqual(self.uut.affected_code("file"), affected_code) |
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| 48 | |||
| 49 | self.uut.delete_line(2) |
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| 50 | affected_code = [ |
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| 77 | self.uut.add_lines(0, ["0.1", "0.2"]) |
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| 78 | self.uut.add_lines(1, ["1.1"]) |
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| 79 | self.uut.change_line(3, "3", "3.changed") |
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| 80 | self.assertEqual(self.uut.modified, result_file) |
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| 81 | self.assertEqual(self.uut.original, self.file) |
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| 82 | |||
| 83 | self.uut.delete_line(len(self.file)) |
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| 89 | self.assertEqual(self.uut.modified, result_file) |
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| 90 | |||
| 91 | def test_addition(self): |
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| 92 | self.assertRaises(TypeError, self.uut.__add__, 5) |
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| 93 | |||
| 94 | result_file = ["1", |
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| 95 | "2", |
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| 103 | self.uut.delete_line(1) |
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| 104 | self.uut.delete_line(3) |
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| 105 | self.uut.change_line(4, "4", "2") |
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| 106 | result = self.uut + other |
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| 107 | |||
| 108 | self.assertEqual(result.modified, result_file) |
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| 109 | # Make sure it didn't happen in place! |
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| 110 | self.assertNotEqual(self.uut.modified, result_file) |
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| 111 | |||
| 112 | def test_from_string_arrays(self): |
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| 113 | a = ["q", "a", "b", "x", "c", "d"] |
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| 114 | b = ["a", "b", "y", "c", "d", "f"] |
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| 115 | self.uut = Diff.from_string_arrays(a, b) |
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| 116 | self.assertEqual(self.uut.modified, b) |
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| 117 | |||
| 118 | a = ["first", "fourth"] |
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| 119 | b = ["first", "second", "third", "fourth"] |
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| 138 | def test_from_clang_fixit(self): |
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| 139 | try: |
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| 140 | from clang.cindex import Index, LibclangError |
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| 141 | except ImportError as err: |
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| 142 | raise SkipTest(str(err)) |
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| 143 | |||
| 144 | joined_file = 'struct { int f0; }\nx = { f0 :1 };\n' |
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| 145 | file = joined_file.splitlines(True) |
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| 146 | fixed_file = ['struct { int f0; }\n', 'x = { .f0 = 1 };\n'] |
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| 147 | try: |
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| 148 | tu = Index.create().parse('t.c', unsaved_files=[ |
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| 149 | ('t.c', joined_file)]) |
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| 150 | except LibclangError as err: |
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| 151 | raise SkipTest(str(err)) |
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| 152 | |||
| 153 | fixit = tu.diagnostics[0].fixits[0] |
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| 154 | clang_fixed_file = Diff.from_clang_fixit(fixit, file).modified |
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| 155 | self.assertEqual(fixed_file, clang_fixed_file) |
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| 156 | |||
| 157 | def test_equality(self): |
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| 158 | a = ["first", "second", "third"] |
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| 159 | b = ["first", "third"] |
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| 160 | diff_1 = Diff.from_string_arrays(a, b) |
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| 161 | |||
| 162 | a[1] = "else" |
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| 163 | diff_2 = Diff.from_string_arrays(a, b) |
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| 164 | self.assertEqual(diff_1, diff_2) |
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| 165 | |||
| 166 | diff_1.add_lines(1, ["1"]) |
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| 167 | self.assertNotEqual(diff_1, diff_2) |
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| 170 | JSONEncoder = create_json_encoder() |
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| 171 | a = ["first\n", "second\n", "third\n"] |
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| 172 | b = ["first\n", "third\n"] |
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| 173 | diff = Diff.from_string_arrays(a, b) |
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| 174 | self.assertEqual( |
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| 175 | json.dumps(diff, cls=JSONEncoder, sort_keys=True), |
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| 176 | '"--- \\n' |
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| 177 | '+++ \\n' |
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| 178 | '@@ -1,3 +1,2 @@\\n' |
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| 182 |
AbdealiJK
Fabian Neuschmidt
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