-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
[PATCH] Introduce unit tests for git-rev-list --bisect
This patch introduces some unit tests for the git-rev-list --bisect functionality. Signed-off-by: Jon Seymour <jon.seymour@gmail.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
- Loading branch information
Jon Seymour
authored and
Linus Torvalds
committed
Jul 6, 2005
1 parent
ce11895
commit 8904591
Showing
1 changed file
with
247 additions
and
0 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,247 @@ | ||
| #!/bin/sh | ||
| # | ||
| # Copyright (c) 2005 Jon Seymour | ||
| # | ||
| test_description='Tests git-rev-list --bisect functionality' | ||
|
|
||
| . ./test-lib.sh | ||
| . ../t6000-lib.sh | ||
|
|
||
| bc_expr() | ||
| { | ||
| bc <<EOF | ||
| scale=1 | ||
| define abs(x) { if (x>=0) { return x; } else { return -x; } } | ||
| define floor(x) { save=scale; scale=0; result=x/1; scale=save; return result; } | ||
| $* | ||
| EOF | ||
| } | ||
|
|
||
| # usage: test_bisection max-diff bisect-option head ^prune... | ||
| # | ||
| # e.g. test_bisection 1 --bisect l1 ^l0 | ||
| # | ||
| test_bisection_diff() | ||
| { | ||
| _max_diff=$1 | ||
| _bisect_option=$2 | ||
| shift 2 | ||
| _bisection=$(git-rev-list $_bisect_option "$@") | ||
| _list_size=$(git-rev-list "$@" | wc -l) | ||
| _head=$1 | ||
| shift 1 | ||
| _bisection_size=$(git-rev-list $_bisection "$@" | wc -l) | ||
| [ -n "$_list_size" -a -n "$_bisection_size" ] || error "test_bisection_diff failed" | ||
| test_expect_success "bisection diff $_bisect_option $_head $* <= $_max_diff" "[ $(bc_expr "floor(abs($_list_size/2)-$_bisection_size)") -le $_max_diff ]" | ||
| } | ||
|
|
||
| date >path0 | ||
| git-update-cache --add path0 | ||
| save_tag tree git-write-tree | ||
| on_committer_date "1971-08-16 00:00:00" hide_error save_tag root unique_commit root tree | ||
| on_committer_date "1971-08-16 00:00:01" save_tag l0 unique_commit l0 tree -p root | ||
| on_committer_date "1971-08-16 00:00:02" save_tag l1 unique_commit l1 tree -p l0 | ||
| on_committer_date "1971-08-16 00:00:03" save_tag l2 unique_commit l2 tree -p l1 | ||
| on_committer_date "1971-08-16 00:00:04" save_tag a0 unique_commit a0 tree -p l2 | ||
| on_committer_date "1971-08-16 00:00:05" save_tag a1 unique_commit a1 tree -p a0 | ||
| on_committer_date "1971-08-16 00:00:06" save_tag b1 unique_commit b1 tree -p a0 | ||
| on_committer_date "1971-08-16 00:00:07" save_tag c1 unique_commit c1 tree -p b1 | ||
| on_committer_date "1971-08-16 00:00:08" save_tag b2 unique_commit b2 tree -p b1 | ||
| on_committer_date "1971-08-16 00:00:09" save_tag b3 unique_commit b2 tree -p b2 | ||
| on_committer_date "1971-08-16 00:00:10" save_tag c2 unique_commit c2 tree -p c1 -p b2 | ||
| on_committer_date "1971-08-16 00:00:11" save_tag c3 unique_commit c3 tree -p c2 | ||
| on_committer_date "1971-08-16 00:00:12" save_tag a2 unique_commit a2 tree -p a1 | ||
| on_committer_date "1971-08-16 00:00:13" save_tag a3 unique_commit a3 tree -p a2 | ||
| on_committer_date "1971-08-16 00:00:14" save_tag b4 unique_commit b4 tree -p b3 -p a3 | ||
| on_committer_date "1971-08-16 00:00:15" save_tag a4 unique_commit a4 tree -p a3 -p b4 -p c3 | ||
| on_committer_date "1971-08-16 00:00:16" save_tag l3 unique_commit l3 tree -p a4 | ||
| on_committer_date "1971-08-16 00:00:17" save_tag l4 unique_commit l4 tree -p l3 | ||
| on_committer_date "1971-08-16 00:00:18" save_tag l5 unique_commit l5 tree -p l4 | ||
| tag l5 > .git/HEAD | ||
|
|
||
|
|
||
| # E | ||
| # / \ | ||
| # e1 | | ||
| # | | | ||
| # e2 | | ||
| # | | | ||
| # e3 | | ||
| # | | | ||
| # e4 | | ||
| # | | | ||
| # | f1 | ||
| # | | | ||
| # | f2 | ||
| # | | | ||
| # | f3 | ||
| # | | | ||
| # | f4 | ||
| # | | | ||
| # e5 | | ||
| # | | | ||
| # e6 | | ||
| # | | | ||
| # e7 | | ||
| # | | | ||
| # e8 | | ||
| # \ / | ||
| # F | ||
|
|
||
|
|
||
| on_committer_date "1971-08-16 00:00:00" hide_error save_tag F unique_commit F tree | ||
| on_committer_date "1971-08-16 00:00:01" save_tag e8 unique_commit e8 tree -p F | ||
| on_committer_date "1971-08-16 00:00:02" save_tag e7 unique_commit e7 tree -p e8 | ||
| on_committer_date "1971-08-16 00:00:03" save_tag e6 unique_commit e6 tree -p e7 | ||
| on_committer_date "1971-08-16 00:00:04" save_tag e5 unique_commit e5 tree -p e6 | ||
| on_committer_date "1971-08-16 00:00:05" save_tag f4 unique_commit f4 tree -p F | ||
| on_committer_date "1971-08-16 00:00:06" save_tag f3 unique_commit f3 tree -p f4 | ||
| on_committer_date "1971-08-16 00:00:07" save_tag f2 unique_commit f2 tree -p f3 | ||
| on_committer_date "1971-08-16 00:00:08" save_tag f1 unique_commit f1 tree -p f2 | ||
| on_committer_date "1971-08-16 00:00:09" save_tag e4 unique_commit e4 tree -p e5 | ||
| on_committer_date "1971-08-16 00:00:10" save_tag e3 unique_commit e3 tree -p e4 | ||
| on_committer_date "1971-08-16 00:00:11" save_tag e2 unique_commit e2 tree -p e3 | ||
| on_committer_date "1971-08-16 00:00:12" save_tag e1 unique_commit e1 tree -p e2 | ||
| on_committer_date "1971-08-16 00:00:13" save_tag E unique_commit E tree -p e1 -p f1 | ||
|
|
||
| on_committer_date "1971-08-16 00:00:00" hide_error save_tag U unique_commit U tree | ||
| on_committer_date "1971-08-16 00:00:01" save_tag u0 unique_commit u0 tree -p U | ||
| on_committer_date "1971-08-16 00:00:01" save_tag u1 unique_commit u1 tree -p u0 | ||
| on_committer_date "1971-08-16 00:00:02" save_tag u2 unique_commit u2 tree -p u0 | ||
| on_committer_date "1971-08-16 00:00:03" save_tag u3 unique_commit u3 tree -p u0 | ||
| on_committer_date "1971-08-16 00:00:04" save_tag u4 unique_commit u4 tree -p u0 | ||
| on_committer_date "1971-08-16 00:00:05" save_tag u5 unique_commit u5 tree -p u0 | ||
| on_committer_date "1971-08-16 00:00:06" save_tag V unique_commit V tree -p u1 -p u2 -p u3 -p u4 -p u5 | ||
|
|
||
|
|
||
| # | ||
| # cd to t/trash and use | ||
| # | ||
| # git-rev-list ... 2>&1 | sed "$(cat sed.script)" | ||
| # | ||
| # if you ever want to manually debug the operation of git-rev-list | ||
| # | ||
| echo $sed_script > sed.script | ||
|
|
||
| test_sequence() | ||
| { | ||
| _bisect_option=$1 | ||
|
|
||
| test_bisection_diff 0 $_bisect_option l0 ^root | ||
| test_bisection_diff 0 $_bisect_option l1 ^root | ||
| test_bisection_diff 0 $_bisect_option l2 ^root | ||
| test_bisection_diff 0 $_bisect_option a0 ^root | ||
| test_bisection_diff 0 $_bisect_option a1 ^root | ||
| test_bisection_diff 0 $_bisect_option a2 ^root | ||
| test_bisection_diff 0 $_bisect_option a3 ^root | ||
| test_bisection_diff 0 $_bisect_option b1 ^root | ||
| test_bisection_diff 0 $_bisect_option b2 ^root | ||
| test_bisection_diff 0 $_bisect_option b3 ^root | ||
| test_bisection_diff 0 $_bisect_option c1 ^root | ||
| test_bisection_diff 0 $_bisect_option c2 ^root | ||
| test_bisection_diff 0 $_bisect_option c3 ^root | ||
| test_bisection_diff 0 $_bisect_option E ^F | ||
| test_bisection_diff 0 $_bisect_option e1 ^F | ||
| test_bisection_diff 0 $_bisect_option e2 ^F | ||
| test_bisection_diff 0 $_bisect_option e3 ^F | ||
| test_bisection_diff 0 $_bisect_option e4 ^F | ||
| test_bisection_diff 0 $_bisect_option e5 ^F | ||
| test_bisection_diff 0 $_bisect_option e6 ^F | ||
| test_bisection_diff 0 $_bisect_option e7 ^F | ||
| test_bisection_diff 0 $_bisect_option f1 ^F | ||
| test_bisection_diff 0 $_bisect_option f2 ^F | ||
| test_bisection_diff 0 $_bisect_option f3 ^F | ||
| test_bisection_diff 0 $_bisect_option f4 ^F | ||
| test_bisection_diff 0 $_bisect_option E ^F | ||
|
|
||
| test_bisection_diff 1 $_bisect_option V ^U | ||
| test_bisection_diff 0 $_bisect_option V ^U ^u1 ^u2 ^u3 | ||
| test_bisection_diff 0 $_bisect_option u1 ^U | ||
| test_bisection_diff 0 $_bisect_option u2 ^U | ||
| test_bisection_diff 0 $_bisect_option u3 ^U | ||
| test_bisection_diff 0 $_bisect_option u4 ^U | ||
| test_bisection_diff 0 $_bisect_option u5 ^U | ||
|
|
||
| # | ||
| # the following illustrate's Linus' binary bug blatt idea. | ||
| # | ||
| # assume the bug is actually at l3, but you don't know that - all you know is that l3 is broken | ||
| # and it wasn't broken before | ||
| # | ||
| # keep bisecting the list, advancing the "bad" head and accumulating "good" heads until | ||
| # the bisection point is the head - this is the bad point. | ||
| # | ||
|
|
||
| test_output_expect_success "--bisect l5 ^root" 'git-rev-list $_bisect_option l5 ^root' <<EOF | ||
| c3 | ||
| EOF | ||
|
|
||
| test_output_expect_success "$_bisect_option l5 ^root ^c3" 'git-rev-list $_bisect_option l5 ^root ^c3' <<EOF | ||
| b4 | ||
| EOF | ||
|
|
||
| test_output_expect_success "$_bisect_option l5 ^root ^c3 ^b4" 'git-rev-list $_bisect_option l5 ^c3 ^b4' <<EOF | ||
| l3 | ||
| EOF | ||
|
|
||
| test_output_expect_success "$_bisect_option l3 ^root ^c3 ^b4" 'git-rev-list $_bisect_option l3 ^root ^c3 ^b4' <<EOF | ||
| a4 | ||
| EOF | ||
|
|
||
| test_output_expect_success "$_bisect_option l5 ^b3 ^a3 ^b4 ^a4" 'git-rev-list $_bisect_option l3 ^b3 ^a3 ^a4' <<EOF | ||
| l3 | ||
| EOF | ||
|
|
||
| # | ||
| # if l3 is bad, then l4 is bad too - so advance the bad pointer by making b4 the known bad head | ||
| # | ||
|
|
||
| test_output_expect_success "$_bisect_option l4 ^a2 ^a3 ^b ^a4" 'git-rev-list $_bisect_option l4 ^a2 ^a3 ^a4' <<EOF | ||
| l3 | ||
| EOF | ||
|
|
||
| test_output_expect_success "$_bisect_option l3 ^a2 ^a3 ^b ^a4" 'git-rev-list $_bisect_option l3 ^a2 ^a3 ^a4' <<EOF | ||
| l3 | ||
| EOF | ||
|
|
||
| # found! | ||
|
|
||
| # | ||
| # as another example, let's consider a4 to be the bad head, in which case | ||
| # | ||
|
|
||
| test_output_expect_success "$_bisect_option a4 ^a2 ^a3 ^b4" 'git-rev-list $_bisect_option a4 ^a2 ^a3 ^b4' <<EOF | ||
| c2 | ||
| EOF | ||
|
|
||
| test_output_expect_success "$_bisect_option a4 ^a2 ^a3 ^b4 ^c2" 'git-rev-list $_bisect_option a4 ^a2 ^a3 ^b4 ^c2' <<EOF | ||
| c3 | ||
| EOF | ||
|
|
||
| test_output_expect_success "$_bisect_option a4 ^a2 ^a3 ^b4 ^c2 ^c3" 'git-rev-list $_bisect_option a4 ^a2 ^a3 ^b4 ^c2 ^c3' <<EOF | ||
| a4 | ||
| EOF | ||
|
|
||
| # found! | ||
|
|
||
| # | ||
| # or consider c3 to be the bad head | ||
| # | ||
|
|
||
| test_output_expect_success "$_bisect_option a4 ^a2 ^a3 ^b4" 'git-rev-list $_bisect_option a4 ^a2 ^a3 ^b4' <<EOF | ||
| c2 | ||
| EOF | ||
|
|
||
| test_output_expect_success "$_bisect_option c3 ^a2 ^a3 ^b4 ^c2" 'git-rev-list $_bisect_option c3 ^a2 ^a3 ^b4 ^c2' <<EOF | ||
| c3 | ||
| EOF | ||
|
|
||
| # found! | ||
|
|
||
| } | ||
|
|
||
| test_sequence "--bisect" | ||
|
|
||
| # | ||
| # | ||
| test_done |