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18d472db6f
t4211 attempts to test multiple git-log -L ranges where one range is a superset of the other, and falsely succeeds because its "expected" output is incorrect. Overlapping -L ranges handed to git-log are coalesced by line-log.c:sort_and_merge_range_set() into a set of non-overlapping, disjoint ranges. When one range is a subset of another, sort_and_merge_range_set() should coalesce both ranges to the superset range, but instead the coalesced range often is incorrectly truncated to the end of the subset range. For example, ranges 2-8 and 3-4 are coalesced incorrectly to 2-4. One can observe this incorrect behavior with git-log -L using the test repository created by t4211. The superset/subset ranges t4211 employs are 4-$ and 8-12 (where $ represents end-of-file). The coalesced range should be 4-$. Manually invoking git-log with the same ranges the test employs, we see: % git log -L 4:a.c simple | awk '/^commit [0-9a-f]{40}/ { print substr($2,1,7) }' 4659538 100b61a 39b6eb2 a6eb826 f04fb20 de4c48a % git log -L 8,12:a.c simple | awk ... f04fb20 de4c48a % git log -L 4:a.c -L 8,12:a.c simple | awk ... a6eb826 f04fb20 de4c48a This last output is incorrect. 8-12 is a subset of 4-$, hence the output of the coalesced range should be the same as the 4-$ output shown first. In fact, the above incorrect output is the truncated bogus range 4-12: % git log -L 4,12:a.c simple | awk ... a6eb826 f04fb20 de4c48a Fix the test to correctly fail in the presence of the sort_and_merge_range_set() coalescing bug. Do so by changing the "expected" output to the commits mentioned in the 4-$ output above. Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
68 lines
2 KiB
Bash
Executable file
68 lines
2 KiB
Bash
Executable file
#!/bin/sh
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test_description='test log -L'
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. ./test-lib.sh
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test_expect_success 'setup (import history)' '
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git fast-import < "$TEST_DIRECTORY"/t4211/history.export &&
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git reset --hard
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'
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canned_test_1 () {
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test_expect_$1 "$2" "
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git log $2 >actual &&
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test_cmp \"\$TEST_DIRECTORY\"/t4211/expect.$3 actual
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"
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}
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canned_test () {
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canned_test_1 success "$@"
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}
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canned_test_failure () {
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canned_test_1 failure "$@"
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}
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test_bad_opts () {
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test_expect_success "invalid args: $1" "
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test_must_fail git log $1 2>errors &&
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grep '$2' errors
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"
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}
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canned_test "-L 4,12:a.c simple" simple-f
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canned_test "-L 4,+9:a.c simple" simple-f
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canned_test "-L '/long f/,/^}/:a.c' simple" simple-f
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canned_test "-L :f:a.c simple" simple-f-to-main
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canned_test "-L '/main/,/^}/:a.c' simple" simple-main
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canned_test "-L :main:a.c simple" simple-main-to-end
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canned_test "-L 1,+4:a.c simple" beginning-of-file
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canned_test "-L 20:a.c simple" end-of-file
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canned_test "-L '/long f/',/^}/:a.c -L /main/,/^}/:a.c simple" two-ranges
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canned_test "-L 24,+1:a.c simple" vanishes-early
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canned_test "-M -L '/long f/,/^}/:b.c' move-support" move-support-f
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canned_test "-M -L ':f:b.c' parallel-change" parallel-change-f-to-main
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canned_test "-L 4,12:a.c -L :main:a.c simple" multiple
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canned_test "-L 4,18:a.c -L :main:a.c simple" multiple-overlapping
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canned_test "-L :main:a.c -L 4,18:a.c simple" multiple-overlapping
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canned_test_failure "-L 4:a.c -L 8,12:a.c simple" multiple-superset
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canned_test_failure "-L 8,12:a.c -L 4:a.c simple" multiple-superset
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test_bad_opts "-L" "switch.*requires a value"
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test_bad_opts "-L b.c" "argument.*not of the form"
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test_bad_opts "-L 1:" "argument.*not of the form"
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test_bad_opts "-L 1:nonexistent" "There is no path"
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test_bad_opts "-L 1:simple" "There is no path"
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test_bad_opts "-L '/foo:b.c'" "argument.*not of the form"
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test_bad_opts "-L 1000:b.c" "has only.*lines"
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test_bad_opts "-L 1,1000:b.c" "has only.*lines"
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test_bad_opts "-L :b.c" "argument.*not of the form"
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test_bad_opts "-L :foo:b.c" "no match"
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test_done
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