t4001: add a test comparing basename similarity and content similarity
Add a simple test where a removed file is similar to two different added files; one of them has the same basename, and the other has a slightly higher content similarity. In the current test, content similarity is weighted higher than filename similarity. Subsequent commits will add a new rule that weighs a mixture of filename similarity and content similarity in a manner that will change the outcome of this testcase. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Elijah Newren committed
Feb 14, 2021 at 07:51 UTC
f3845257a55aa5c949ce2543d53fe1f28b5072df
1 file changed
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t/t4001-diff-rename.sh
+23
@@ -262,4 +262,27 @@ test_expect_success 'diff-tree -l0 defaults to a big rename limit, not zero' '
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grep "myotherfile.*myfile" actual
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'
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+test_expect_success 'basename similarity vs best similarity' '
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+ mkdir subdir &&
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+ test_write_lines line1 line2 line3 line4 line5 \
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+ line6 line7 line8 line9 line10 >subdir/file.txt &&
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+ git add subdir/file.txt &&
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+ git commit -m "base txt" &&
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+
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+ git rm subdir/file.txt &&
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+ test_write_lines line1 line2 line3 line4 line5 \
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+ line6 line7 line8 >file.txt &&
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+ test_write_lines line1 line2 line3 line4 line5 \
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+ line6 line7 line8 line9 >file.md &&
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+ git add file.txt file.md &&
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+ git commit -a -m "rename" &&
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+ git diff-tree -r -M --name-status HEAD^ HEAD >actual &&
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+ # subdir/file.txt is 88% similar to file.md and 78% similar to file.txt
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+ cat >expected <<-\EOF &&
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+ R088 subdir/file.txt file.md
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+ A file.txt
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+ EOF
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+ test_cmp expected actual
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+'
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+
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test_done