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Fix diff-parser: Copying parts of if else should not lead to the whole thing being copied

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Dave Halter
2018-12-30 15:25:17 +01:00
parent a64c32bb2a
commit f99fe6ad21
2 changed files with 41 additions and 3 deletions
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33
test/test_diff_parser.py
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@@ -142,7 +142,7 @@ def test_if_simple(differ):
differ.initialize(src + 'a')
differ.parse(src + else_ + "a", copies=0, parsers=1)
differ.parse(else_, parsers=1, expect_error_leaves=True)
differ.parse(else_, parsers=1, copies=1, expect_error_leaves=True)
differ.parse(src + else_, parsers=1)
@@ -560,3 +560,34 @@ def test_invalid_to_valid_nodes(differ):
differ.initialize(code1)
differ.parse(code2, parsers=1, copies=3)
def test_if_removal_and_reappearence(differ):
code1 = dedent('''\
la = 3
if foo:
latte = 3
else:
la
pass
''')
code2 = dedent('''\
la = 3
latte = 3
else:
la
pass
''')
code3 = dedent('''\
la = 3
if foo:
latte = 3
else:
la
''')
differ.initialize(code1)
differ.parse(code2, parsers=1, copies=4, expect_error_leaves=True)
differ.parse(code1, parsers=1, copies=1)
differ.parse(code3, parsers=1, copies=1)