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03df567fbf
`for_each_bisect_ref()` is called by `for_each_bad_bisect_ref()` with
a term "bad". This used to make it call `for_each_ref_in_submodule()`
with a prefix "refs/bisect/bad". But the latter is the name of the
reference that is being sought, so the empty string was being passed
to the callback as the trimmed refname. Moreover, this questionable
practice was turned into an error by
b9c8e7f2fb prefix_ref_iterator: don't trim too much, 2017-05-22
It makes more sense (and agrees better with the documentation of
`--bisect`) for the callers to receive the full reference names. So
* Add a new function, `for_each_fullref_in_submodule()`, to the refs
API. This plugs a gap in the existing functionality, analogous to
`for_each_fullref_in()` but accepting a `submodule` argument.
* Change `for_each_bad_bisect_ref()` to call the new function rather
than `for_each_ref_in_submodule()`.
* Add a test.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
252 lines
8 KiB
Bash
Executable file
252 lines
8 KiB
Bash
Executable file
#!/bin/sh
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#
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# Copyright (c) 2005 Jon Seymour
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#
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test_description='Tests git rev-list --bisect functionality'
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. ./test-lib.sh
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. "$TEST_DIRECTORY"/lib-t6000.sh # t6xxx specific functions
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# usage: test_bisection max-diff bisect-option head ^prune...
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#
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# e.g. test_bisection 1 --bisect l1 ^l0
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#
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test_bisection_diff()
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{
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_max_diff=$1
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_bisect_option=$2
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shift 2
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_bisection=$(git rev-list $_bisect_option "$@")
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_list_size=$(git rev-list "$@" | wc -l)
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_head=$1
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shift 1
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_bisection_size=$(git rev-list $_bisection "$@" | wc -l)
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[ -n "$_list_size" -a -n "$_bisection_size" ] ||
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error "test_bisection_diff failed"
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# Test if bisection size is close to half of list size within
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# tolerance.
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#
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_bisect_err=$(expr $_list_size - $_bisection_size \* 2)
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test "$_bisect_err" -lt 0 && _bisect_err=$(expr 0 - $_bisect_err)
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_bisect_err=$(expr $_bisect_err / 2) ; # floor
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test_expect_success \
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"bisection diff $_bisect_option $_head $* <= $_max_diff" \
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'test $_bisect_err -le $_max_diff'
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}
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date >path0
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git update-index --add path0
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save_tag tree git write-tree
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on_committer_date "00:00" hide_error save_tag root unique_commit root tree
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on_committer_date "00:01" save_tag l0 unique_commit l0 tree -p root
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on_committer_date "00:02" save_tag l1 unique_commit l1 tree -p l0
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on_committer_date "00:03" save_tag l2 unique_commit l2 tree -p l1
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on_committer_date "00:04" save_tag a0 unique_commit a0 tree -p l2
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on_committer_date "00:05" save_tag a1 unique_commit a1 tree -p a0
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on_committer_date "00:06" save_tag b1 unique_commit b1 tree -p a0
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on_committer_date "00:07" save_tag c1 unique_commit c1 tree -p b1
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on_committer_date "00:08" save_tag b2 unique_commit b2 tree -p b1
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on_committer_date "00:09" save_tag b3 unique_commit b2 tree -p b2
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on_committer_date "00:10" save_tag c2 unique_commit c2 tree -p c1 -p b2
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on_committer_date "00:11" save_tag c3 unique_commit c3 tree -p c2
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on_committer_date "00:12" save_tag a2 unique_commit a2 tree -p a1
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on_committer_date "00:13" save_tag a3 unique_commit a3 tree -p a2
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on_committer_date "00:14" save_tag b4 unique_commit b4 tree -p b3 -p a3
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on_committer_date "00:15" save_tag a4 unique_commit a4 tree -p a3 -p b4 -p c3
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on_committer_date "00:16" save_tag l3 unique_commit l3 tree -p a4
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on_committer_date "00:17" save_tag l4 unique_commit l4 tree -p l3
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on_committer_date "00:18" save_tag l5 unique_commit l5 tree -p l4
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git update-ref HEAD $(tag l5)
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# E
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# / \
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# e1 |
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# | |
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# e2 |
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# | |
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# e3 |
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# | |
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# e4 |
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# | |
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# | f1
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# | |
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# | f2
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# | |
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# | f3
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# | |
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# | f4
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# | |
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# e5 |
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# | |
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# e6 |
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# | |
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# e7 |
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# | |
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# e8 |
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# \ /
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# F
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on_committer_date "00:00" hide_error save_tag F unique_commit F tree
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on_committer_date "00:01" save_tag e8 unique_commit e8 tree -p F
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on_committer_date "00:02" save_tag e7 unique_commit e7 tree -p e8
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on_committer_date "00:03" save_tag e6 unique_commit e6 tree -p e7
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on_committer_date "00:04" save_tag e5 unique_commit e5 tree -p e6
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on_committer_date "00:05" save_tag f4 unique_commit f4 tree -p F
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on_committer_date "00:06" save_tag f3 unique_commit f3 tree -p f4
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on_committer_date "00:07" save_tag f2 unique_commit f2 tree -p f3
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on_committer_date "00:08" save_tag f1 unique_commit f1 tree -p f2
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on_committer_date "00:09" save_tag e4 unique_commit e4 tree -p e5
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on_committer_date "00:10" save_tag e3 unique_commit e3 tree -p e4
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on_committer_date "00:11" save_tag e2 unique_commit e2 tree -p e3
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on_committer_date "00:12" save_tag e1 unique_commit e1 tree -p e2
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on_committer_date "00:13" save_tag E unique_commit E tree -p e1 -p f1
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on_committer_date "00:00" hide_error save_tag U unique_commit U tree
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on_committer_date "00:01" save_tag u0 unique_commit u0 tree -p U
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on_committer_date "00:01" save_tag u1 unique_commit u1 tree -p u0
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on_committer_date "00:02" save_tag u2 unique_commit u2 tree -p u0
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on_committer_date "00:03" save_tag u3 unique_commit u3 tree -p u0
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on_committer_date "00:04" save_tag u4 unique_commit u4 tree -p u0
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on_committer_date "00:05" save_tag u5 unique_commit u5 tree -p u0
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on_committer_date "00:06" save_tag V unique_commit V tree -p u1 -p u2 -p u3 -p u4 -p u5
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test_sequence()
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{
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_bisect_option=$1
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test_bisection_diff 0 $_bisect_option l0 ^root
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test_bisection_diff 0 $_bisect_option l1 ^root
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test_bisection_diff 0 $_bisect_option l2 ^root
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test_bisection_diff 0 $_bisect_option a0 ^root
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test_bisection_diff 0 $_bisect_option a1 ^root
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test_bisection_diff 0 $_bisect_option a2 ^root
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test_bisection_diff 0 $_bisect_option a3 ^root
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test_bisection_diff 0 $_bisect_option b1 ^root
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test_bisection_diff 0 $_bisect_option b2 ^root
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test_bisection_diff 0 $_bisect_option b3 ^root
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test_bisection_diff 0 $_bisect_option c1 ^root
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test_bisection_diff 0 $_bisect_option c2 ^root
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test_bisection_diff 0 $_bisect_option c3 ^root
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test_bisection_diff 0 $_bisect_option E ^F
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test_bisection_diff 0 $_bisect_option e1 ^F
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test_bisection_diff 0 $_bisect_option e2 ^F
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test_bisection_diff 0 $_bisect_option e3 ^F
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test_bisection_diff 0 $_bisect_option e4 ^F
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test_bisection_diff 0 $_bisect_option e5 ^F
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test_bisection_diff 0 $_bisect_option e6 ^F
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test_bisection_diff 0 $_bisect_option e7 ^F
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test_bisection_diff 0 $_bisect_option f1 ^F
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test_bisection_diff 0 $_bisect_option f2 ^F
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test_bisection_diff 0 $_bisect_option f3 ^F
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test_bisection_diff 0 $_bisect_option f4 ^F
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test_bisection_diff 0 $_bisect_option E ^F
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test_bisection_diff 1 $_bisect_option V ^U
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test_bisection_diff 0 $_bisect_option V ^U ^u1 ^u2 ^u3
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test_bisection_diff 0 $_bisect_option u1 ^U
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test_bisection_diff 0 $_bisect_option u2 ^U
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test_bisection_diff 0 $_bisect_option u3 ^U
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test_bisection_diff 0 $_bisect_option u4 ^U
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test_bisection_diff 0 $_bisect_option u5 ^U
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#
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# the following illustrates Linus' binary bug blatt idea.
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#
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# assume the bug is actually at l3, but you don't know that - all you know is that l3 is broken
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# and it wasn't broken before
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#
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# keep bisecting the list, advancing the "bad" head and accumulating "good" heads until
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# the bisection point is the head - this is the bad point.
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#
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test_output_expect_success "$_bisect_option l5 ^root" 'git rev-list $_bisect_option l5 ^root' <<EOF
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c3
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EOF
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test_output_expect_success "$_bisect_option l5 ^root ^c3" 'git rev-list $_bisect_option l5 ^root ^c3' <<EOF
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b4
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EOF
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test_output_expect_success "$_bisect_option l5 ^root ^c3 ^b4" 'git rev-list $_bisect_option l5 ^c3 ^b4' <<EOF
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l3
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EOF
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test_output_expect_success "$_bisect_option l3 ^root ^c3 ^b4" 'git rev-list $_bisect_option l3 ^root ^c3 ^b4' <<EOF
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a4
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EOF
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test_output_expect_success "$_bisect_option l5 ^b3 ^a3 ^b4 ^a4" 'git rev-list $_bisect_option l3 ^b3 ^a3 ^a4' <<EOF
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l3
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EOF
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#
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# if l3 is bad, then l4 is bad too - so advance the bad pointer by making b4 the known bad head
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#
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test_output_expect_success "$_bisect_option l4 ^a2 ^a3 ^b ^a4" 'git rev-list $_bisect_option l4 ^a2 ^a3 ^a4' <<EOF
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l3
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EOF
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test_output_expect_success "$_bisect_option l3 ^a2 ^a3 ^b ^a4" 'git rev-list $_bisect_option l3 ^a2 ^a3 ^a4' <<EOF
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l3
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EOF
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# found!
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#
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# as another example, let's consider a4 to be the bad head, in which case
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#
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test_output_expect_success "$_bisect_option a4 ^a2 ^a3 ^b4" 'git rev-list $_bisect_option a4 ^a2 ^a3 ^b4' <<EOF
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c2
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EOF
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test_output_expect_success "$_bisect_option a4 ^a2 ^a3 ^b4 ^c2" 'git rev-list $_bisect_option a4 ^a2 ^a3 ^b4 ^c2' <<EOF
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c3
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EOF
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test_output_expect_success "$_bisect_option a4 ^a2 ^a3 ^b4 ^c2 ^c3" 'git rev-list $_bisect_option a4 ^a2 ^a3 ^b4 ^c2 ^c3' <<EOF
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a4
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EOF
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# found!
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#
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# or consider c3 to be the bad head
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#
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test_output_expect_success "$_bisect_option a4 ^a2 ^a3 ^b4" 'git rev-list $_bisect_option a4 ^a2 ^a3 ^b4' <<EOF
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c2
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EOF
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test_output_expect_success "$_bisect_option c3 ^a2 ^a3 ^b4 ^c2" 'git rev-list $_bisect_option c3 ^a2 ^a3 ^b4 ^c2' <<EOF
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c3
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EOF
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# found!
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}
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test_sequence "--bisect"
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#
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#
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test_expect_success '--bisect can default to good/bad refs' '
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git update-ref refs/bisect/bad c3 &&
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good=$(git rev-parse b1) &&
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git update-ref refs/bisect/good-$good $good &&
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good=$(git rev-parse c1) &&
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git update-ref refs/bisect/good-$good $good &&
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# the only thing between c3 and c1 is c2
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git rev-parse c2 >expect &&
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git rev-list --bisect >actual &&
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test_cmp expect actual
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'
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test_done
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