82ebb0b6ec
Many scripts compare actual and expected output using "diff -u". This is nicer than "cmp" because the output shows how the two differ. However, not all versions of diff understand -u, leading to unnecessary test failure. This adds a test_cmp function to the test scripts and switches all "diff -u" invocations to use it. The function uses the contents of "$GIT_TEST_CMP" to compare its arguments; the default is "diff -u". On systems with a less-capable diff, you can do: GIT_TEST_CMP=cmp make test Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
72 lines
1.6 KiB
Bash
Executable File
72 lines
1.6 KiB
Bash
Executable File
#!/bin/sh
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#
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# Copyright (c) 2007 Carl D. Worth
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#
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test_description='git ls-files test (--with-tree).
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This test runs git ls-files --with-tree and in particular in
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a scenario known to trigger a crash with some versions of git.
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'
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. ./test-lib.sh
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test_expect_success setup '
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# The bug we are exercising requires a fair number of entries
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# in a sub-directory so that add_index_entry will trigger a
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# realloc.
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echo file >expected &&
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mkdir sub &&
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bad= &&
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for n in 0 1 2 3 4 5
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do
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for m in 0 1 2 3 4 5 6 7 8 9
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do
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num=00$n$m &&
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>sub/file-$num &&
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echo file-$num >>expected || {
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bad=t
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break
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}
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done && test -z "$bad" || {
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bad=t
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break
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}
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done && test -z "$bad" &&
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git add . &&
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git commit -m "add a bunch of files" &&
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# We remove them all so that we will have something to add
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# back with --with-tree and so that we will definitely be
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# under the realloc size to trigger the bug.
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rm -rf sub &&
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git commit -a -m "remove them all" &&
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# The bug also requires some entry before our directory so that
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# prune_path will modify the_index.cache
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mkdir a_directory_that_sorts_before_sub &&
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>a_directory_that_sorts_before_sub/file &&
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mkdir sub &&
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>sub/file &&
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git add .
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'
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# We have to run from a sub-directory to trigger prune_path
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# Then we finally get to run our --with-tree test
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cd sub
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test_expect_success 'git -ls-files --with-tree should succeed from subdir' '
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git ls-files --with-tree=HEAD~1 >../output
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'
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cd ..
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test_expect_success \
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'git -ls-files --with-tree should add entries from named tree.' \
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'test_cmp expected output'
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test_done
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