commit: drop duplicated parents

diff --git a/t/t6030-bisect-porcelain.sh b/t/t6030-bisect-porcelain.sh
index 53956c08e2754eb68a2a8311b26e16f5ee891308..0626544823d6ff9d37ea86c752285d093788df3e 100755 (executable)
--- a/t/t6030-bisect-porcelain.sh
+++ b/t/t6030-bisect-porcelain.sh
@@ -71,6 +71,102 @@ test_expect_success 'bisect start with one bad and good' '
        git bisect next
 '
 
+test_expect_success 'bisect fails if given any junk instead of revs' '
+       git bisect reset &&
+       test_must_fail git bisect start foo $HASH1 -- &&
+       test_must_fail git bisect start $HASH4 $HASH1 bar -- &&
+       test -z "$(git for-each-ref "refs/bisect/*")" &&
+       test_must_fail ls .git/BISECT_* &&
+       git bisect start &&
+       test_must_fail git bisect good foo $HASH1 &&
+       test_must_fail git bisect good $HASH1 bar &&
+       test_must_fail git bisect bad frotz &&
+       test_must_fail git bisect bad $HASH3 $HASH4 &&
+       test_must_fail git bisect skip bar $HASH3 &&
+       test_must_fail git bisect skip $HASH1 foo &&
+       test -z "$(git for-each-ref "refs/bisect/*")" &&
+       git bisect good $HASH1 &&
+       git bisect bad $HASH4
+'
+
+test_expect_success 'bisect reset: back in the master branch' '
+       git bisect reset &&
+       echo "* master" > branch.expect &&
+       git branch > branch.output &&
+       cmp branch.expect branch.output
+'
+
+test_expect_success 'bisect reset: back in another branch' '
+       git checkout -b other &&
+       git bisect start &&
+       git bisect good $HASH1 &&
+       git bisect bad $HASH3 &&
+       git bisect reset &&
+       echo "  master" > branch.expect &&
+       echo "* other" >> branch.expect &&
+       git branch > branch.output &&
+       cmp branch.expect branch.output
+'
+
+test_expect_success 'bisect reset when not bisecting' '
+       git bisect reset &&
+       git branch > branch.output &&
+       cmp branch.expect branch.output
+'
+
+test_expect_success 'bisect reset removes packed refs' '
+       git bisect reset &&
+       git bisect start &&
+       git bisect good $HASH1 &&
+       git bisect bad $HASH3 &&
+       git pack-refs --all --prune &&
+       git bisect next &&
+       git bisect reset &&
+       test -z "$(git for-each-ref "refs/bisect/*")" &&
+       test -z "$(git for-each-ref "refs/heads/bisect")"
+'
+
+test_expect_success 'bisect start: back in good branch' '
+       git branch > branch.output &&
+       grep "* other" branch.output > /dev/null &&
+       git bisect start $HASH4 $HASH1 -- &&
+       git bisect good &&
+       git bisect start $HASH4 $HASH1 -- &&
+       git bisect bad &&
+       git bisect reset &&
+       git branch > branch.output &&
+       grep "* other" branch.output > /dev/null
+'
+
+test_expect_success 'bisect start: no ".git/BISECT_START" if junk rev' '
+       git bisect start $HASH4 $HASH1 -- &&
+       git bisect good &&
+       test_must_fail git bisect start $HASH4 foo -- &&
+       git branch > branch.output &&
+       grep "* other" branch.output > /dev/null &&
+       test_must_fail test -e .git/BISECT_START
+'
+
+test_expect_success 'bisect start: no ".git/BISECT_START" if mistaken rev' '
+       git bisect start $HASH4 $HASH1 -- &&
+       git bisect good &&
+       test_must_fail git bisect start $HASH1 $HASH4 -- &&
+       git branch > branch.output &&
+       grep "* other" branch.output > /dev/null &&
+       test_must_fail test -e .git/BISECT_START
+'
+
+test_expect_success 'bisect start: no ".git/BISECT_START" if checkout error' '
+       echo "temp stuff" > hello &&
+       test_must_fail git bisect start $HASH4 $HASH1 -- &&
+       git branch &&
+       git branch > branch.output &&
+       grep "* other" branch.output > /dev/null &&
+       test_must_fail test -e .git/BISECT_START &&
+       test -z "$(git for-each-ref "refs/bisect/*")" &&
+       git checkout HEAD hello
+'
+
 # $HASH1 is good, $HASH4 is bad, we skip $HASH3
 # but $HASH2 is bad,
 # so we should find $HASH2 as the first bad commit
@@ -167,7 +263,7 @@ test_expect_success 'bisect skip: add line and then a new test' '
        git bisect skip &&
        git bisect good > my_bisect_log.txt &&
        grep "$HASH5 is first bad commit" my_bisect_log.txt &&
-       git bisect log > log_to_replay.txt
+       git bisect log > log_to_replay.txt &&
        git bisect reset
 '
 
@@ -182,7 +278,7 @@ test_expect_success 'bisect run & skip: cannot tell between 2' '
        add_line_into_file "6: Yet a line." hello &&
        HASH6=$(git rev-parse --verify HEAD) &&
        echo "#"\!"/bin/sh" > test_script.sh &&
-       echo "tail -1 hello | grep Ciao > /dev/null && exit 125" >> test_script.sh &&
+       echo "sed -ne \\\$p hello | grep Ciao > /dev/null && exit 125" >> test_script.sh &&
        echo "grep line hello > /dev/null" >> test_script.sh &&
        echo "test \$? -ne 0" >> test_script.sh &&
        chmod +x test_script.sh &&
@@ -207,8 +303,8 @@ test_expect_success 'bisect run & skip: find first bad' '
        add_line_into_file "7: Should be the last line." hello &&
        HASH7=$(git rev-parse --verify HEAD) &&
        echo "#"\!"/bin/sh" > test_script.sh &&
-       echo "tail -1 hello | grep Ciao > /dev/null && exit 125" >> test_script.sh &&
-       echo "tail -1 hello | grep day > /dev/null && exit 125" >> test_script.sh &&
+       echo "sed -ne \\\$p hello | grep Ciao > /dev/null && exit 125" >> test_script.sh &&
+       echo "sed -ne \\\$p hello | grep day > /dev/null && exit 125" >> test_script.sh &&
        echo "grep Yet hello > /dev/null" >> test_script.sh &&
        echo "test \$? -ne 0" >> test_script.sh &&
        chmod +x test_script.sh &&
@@ -217,6 +313,43 @@ test_expect_success 'bisect run & skip: find first bad' '
        grep "$HASH6 is first bad commit" my_bisect_log.txt
 '
 
+test_expect_success 'bisect starting with a detached HEAD' '
+
+       git bisect reset &&
+       git checkout master^ &&
+       HEAD=$(git rev-parse --verify HEAD) &&
+       git bisect start &&
+       test $HEAD = $(cat .git/BISECT_START) &&
+       git bisect reset &&
+       test $HEAD = $(git rev-parse --verify HEAD)
+'
+
+test_expect_success 'bisect errors out if bad and good are mistaken' '
+       git bisect reset &&
+       test_must_fail git bisect start $HASH2 $HASH4 2> rev_list_error &&
+       grep "mistake good and bad" rev_list_error &&
+       git bisect reset
+'
+
+test_expect_success 'bisect does not create a "bisect" branch' '
+       git bisect reset &&
+       git bisect start $HASH7 $HASH1 &&
+       git branch bisect &&
+       rev_hash4=$(git rev-parse --verify HEAD) &&
+       test "$rev_hash4" = "$HASH4" &&
+       git branch -D bisect &&
+       git bisect good &&
+       git branch bisect &&
+       rev_hash6=$(git rev-parse --verify HEAD) &&
+       test "$rev_hash6" = "$HASH6" &&
+       git bisect good > my_bisect_log.txt &&
+       grep "$HASH7 is first bad commit" my_bisect_log.txt &&
+       git bisect reset &&
+       rev_hash6=$(git rev-parse --verify bisect) &&
+       test "$rev_hash6" = "$HASH6" &&
+       git branch -D bisect
+'
+
 #
 #
 test_done