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-rwxr-xr-xt/t2018-checkout-branch.sh131
1 files changed, 81 insertions, 50 deletions
diff --git a/t/t2018-checkout-branch.sh b/t/t2018-checkout-branch.sh
index c5014ad9a6..bbca7ef8da 100755
--- a/t/t2018-checkout-branch.sh
+++ b/t/t2018-checkout-branch.sh
@@ -1,50 +1,76 @@
#!/bin/sh
-test_description='checkout '
+test_description='checkout'
. ./test-lib.sh
-# Arguments: <branch> <sha> [<checkout options>]
+# Arguments: [!] <branch> <oid> [<checkout options>]
#
# Runs "git checkout" to switch to <branch>, testing that
#
# 1) we are on the specified branch, <branch>;
-# 2) HEAD is <sha>; if <sha> is not specified, the old HEAD is used.
+# 2) HEAD is <oid>; if <oid> is not specified, the old HEAD is used.
#
# If <checkout options> is not specified, "git checkout" is run with -b.
-do_checkout() {
+#
+# If the first argument is `!`, "git checkout" is expected to fail when
+# it is run.
+do_checkout () {
+ should_fail= &&
+ if test "x$1" = "x!"
+ then
+ should_fail=yes &&
+ shift
+ fi &&
exp_branch=$1 &&
exp_ref="refs/heads/$exp_branch" &&
- # if <sha> is not specified, use HEAD.
- exp_sha=${2:-$(git rev-parse --verify HEAD)} &&
+ # if <oid> is not specified, use HEAD.
+ exp_oid=${2:-$(git rev-parse --verify HEAD)} &&
# default options for git checkout: -b
- if [ -z "$3" ]; then
+ if test -z "$3"
+ then
opts="-b"
else
opts="$3"
fi
- git checkout $opts $exp_branch $exp_sha &&
+ if test -n "$should_fail"
+ then
+ test_must_fail git checkout $opts $exp_branch $exp_oid
+ else
+ git checkout $opts $exp_branch $exp_oid &&
+ echo "$exp_ref" >ref.expect &&
+ git rev-parse --symbolic-full-name HEAD >ref.actual &&
+ test_cmp ref.expect ref.actual &&
+ echo "$exp_oid" >oid.expect &&
+ git rev-parse --verify HEAD >oid.actual &&
+ test_cmp oid.expect oid.actual
+ fi
+}
- test $exp_ref = $(git rev-parse --symbolic-full-name HEAD) &&
- test $exp_sha = $(git rev-parse --verify HEAD)
+test_dirty_unmergeable () {
+ test_expect_code 1 git diff --exit-code
}
-test_dirty_unmergeable() {
- ! git diff --exit-code >/dev/null
+test_dirty_unmergeable_discards_changes () {
+ git diff --exit-code
}
-setup_dirty_unmergeable() {
+setup_dirty_unmergeable () {
echo >>file1 change2
}
-test_dirty_mergeable() {
- ! git diff --cached --exit-code >/dev/null
+test_dirty_mergeable () {
+ test_expect_code 1 git diff --cached --exit-code
}
-setup_dirty_mergeable() {
+test_dirty_mergeable_discards_changes () {
+ git diff --cached --exit-code
+}
+
+setup_dirty_mergeable () {
echo >file2 file2 &&
git add file2
}
@@ -60,38 +86,47 @@ test_expect_success 'setup' '
'
test_expect_success 'checkout -b to a new branch, set to HEAD' '
+ test_when_finished "
+ git checkout branch1 &&
+ test_might_fail git branch -D branch2" &&
do_checkout branch2
'
-test_expect_success 'checkout -b to a new branch, set to an explicit ref' '
- git checkout branch1 &&
- git branch -D branch2 &&
+test_expect_success 'checkout -b to a merge base' '
+ test_when_finished "
+ git checkout branch1 &&
+ test_might_fail git branch -D branch2" &&
+ git checkout -b branch2 branch1...
+'
+test_expect_success 'checkout -b to a new branch, set to an explicit ref' '
+ test_when_finished "
+ git checkout branch1 &&
+ test_might_fail git branch -D branch2" &&
do_checkout branch2 $HEAD1
'
test_expect_success 'checkout -b to a new branch with unmergeable changes fails' '
- git checkout branch1 &&
-
- # clean up from previous test
- git branch -D branch2 &&
-
setup_dirty_unmergeable &&
- test_must_fail do_checkout branch2 $HEAD1 &&
+ do_checkout ! branch2 $HEAD1 &&
test_dirty_unmergeable
'
test_expect_success 'checkout -f -b to a new branch with unmergeable changes discards changes' '
+ test_when_finished "
+ git checkout branch1 &&
+ test_might_fail git branch -D branch2" &&
+
# still dirty and on branch1
do_checkout branch2 $HEAD1 "-f -b" &&
- test_must_fail test_dirty_unmergeable
+ test_dirty_unmergeable_discards_changes
'
test_expect_success 'checkout -b to a new branch preserves mergeable changes' '
- git checkout branch1 &&
-
- # clean up from previous test
- git branch -D branch2 &&
+ test_when_finished "
+ git reset --hard &&
+ git checkout branch1 &&
+ test_might_fail git branch -D branch2" &&
setup_dirty_mergeable &&
do_checkout branch2 $HEAD1 &&
@@ -99,27 +134,18 @@ test_expect_success 'checkout -b to a new branch preserves mergeable changes' '
'
test_expect_success 'checkout -f -b to a new branch with mergeable changes discards changes' '
- # clean up from previous test
- git reset --hard &&
-
- git checkout branch1 &&
-
- # clean up from previous test
- git branch -D branch2 &&
-
+ test_when_finished git reset --hard HEAD &&
setup_dirty_mergeable &&
do_checkout branch2 $HEAD1 "-f -b" &&
- test_must_fail test_dirty_mergeable
+ test_dirty_mergeable_discards_changes
'
test_expect_success 'checkout -b to an existing branch fails' '
- git reset --hard HEAD &&
-
- test_must_fail do_checkout branch2 $HEAD2
+ test_when_finished git reset --hard HEAD &&
+ do_checkout ! branch2 $HEAD2
'
test_expect_success 'checkout -b to @{-1} fails with the right branch name' '
- git reset --hard HEAD &&
git checkout branch1 &&
git checkout branch2 &&
echo >expect "fatal: A branch named '\''branch1'\'' already exists." &&
@@ -133,8 +159,15 @@ test_expect_success 'checkout -B to an existing branch resets branch to HEAD' '
do_checkout branch2 "" -B
'
+test_expect_success 'checkout -B to a merge base' '
+ git checkout branch1 &&
+
+ git checkout -B branch2 branch1...
+'
+
test_expect_success 'checkout -B to an existing branch from detached HEAD resets branch to HEAD' '
- git checkout $(git rev-parse --verify HEAD) &&
+ head=$(git rev-parse --verify HEAD) &&
+ git checkout "$head" &&
do_checkout branch2 "" -B
'
@@ -149,17 +182,18 @@ test_expect_success 'checkout -B to an existing branch with unmergeable changes
git checkout branch1 &&
setup_dirty_unmergeable &&
- test_must_fail do_checkout branch2 $HEAD1 -B &&
+ do_checkout ! branch2 $HEAD1 -B &&
test_dirty_unmergeable
'
test_expect_success 'checkout -f -B to an existing branch with unmergeable changes discards changes' '
# still dirty and on branch1
do_checkout branch2 $HEAD1 "-f -B" &&
- test_must_fail test_dirty_unmergeable
+ test_dirty_unmergeable_discards_changes
'
test_expect_success 'checkout -B to an existing branch preserves mergeable changes' '
+ test_when_finished git reset --hard &&
git checkout branch1 &&
setup_dirty_mergeable &&
@@ -168,14 +202,11 @@ test_expect_success 'checkout -B to an existing branch preserves mergeable chang
'
test_expect_success 'checkout -f -B to an existing branch with mergeable changes discards changes' '
- # clean up from previous test
- git reset --hard &&
-
git checkout branch1 &&
setup_dirty_mergeable &&
do_checkout branch2 $HEAD1 "-f -B" &&
- test_must_fail test_dirty_mergeable
+ test_dirty_mergeable_discards_changes
'
test_expect_success 'checkout -b <describe>' '