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-rwxr-xr-xt/t3204-branch-name-interpretation.sh123
1 files changed, 123 insertions, 0 deletions
diff --git a/t/t3204-branch-name-interpretation.sh b/t/t3204-branch-name-interpretation.sh
new file mode 100755
index 0000000..e671a7a
--- /dev/null
+++ b/t/t3204-branch-name-interpretation.sh
@@ -0,0 +1,123 @@
+#!/bin/sh
+
+test_description='interpreting exotic branch name arguments
+
+Branch name arguments are usually names which are taken to be inside of
+refs/heads/, but we interpret some magic syntax like @{-1}, @{upstream}, etc.
+This script aims to check the behavior of those corner cases.
+'
+. ./test-lib.sh
+
+expect_branch() {
+ git log -1 --format=%s "$1" >actual &&
+ echo "$2" >expect &&
+ test_cmp expect actual
+}
+
+expect_deleted() {
+ test_must_fail git rev-parse --verify "$1"
+}
+
+test_expect_success 'set up repo' '
+ test_commit one &&
+ test_commit two &&
+ git remote add origin foo.git
+'
+
+test_expect_success 'update branch via @{-1}' '
+ git branch previous one &&
+
+ git checkout previous &&
+ git checkout master &&
+
+ git branch -f @{-1} two &&
+ expect_branch previous two
+'
+
+test_expect_success 'update branch via local @{upstream}' '
+ git branch local one &&
+ git branch --set-upstream-to=local &&
+
+ git branch -f @{upstream} two &&
+ expect_branch local two
+'
+
+test_expect_failure 'disallow updating branch via remote @{upstream}' '
+ git update-ref refs/remotes/origin/remote one &&
+ git branch --set-upstream-to=origin/remote &&
+
+ test_must_fail git branch -f @{upstream} two
+'
+
+test_expect_success 'create branch with pseudo-qualified name' '
+ git branch refs/heads/qualified two &&
+ expect_branch refs/heads/refs/heads/qualified two
+'
+
+test_expect_success 'delete branch via @{-1}' '
+ git branch previous-del &&
+
+ git checkout previous-del &&
+ git checkout master &&
+
+ git branch -D @{-1} &&
+ expect_deleted previous-del
+'
+
+test_expect_success 'delete branch via local @{upstream}' '
+ git branch local-del &&
+ git branch --set-upstream-to=local-del &&
+
+ git branch -D @{upstream} &&
+ expect_deleted local-del
+'
+
+test_expect_success 'delete branch via remote @{upstream}' '
+ git update-ref refs/remotes/origin/remote-del two &&
+ git branch --set-upstream-to=origin/remote-del &&
+
+ git branch -r -D @{upstream} &&
+ expect_deleted origin/remote-del
+'
+
+# Note that we create two oddly named local branches here. We want to make
+# sure that we do not accidentally delete either of them, even if
+# shorten_unambiguous_ref() tweaks the name to avoid ambiguity.
+test_expect_failure 'delete @{upstream} expansion matches -r option' '
+ git update-ref refs/remotes/origin/remote-del two &&
+ git branch --set-upstream-to=origin/remote-del &&
+ git update-ref refs/heads/origin/remote-del two &&
+ git update-ref refs/heads/remotes/origin/remote-del two &&
+
+ test_must_fail git branch -D @{upstream} &&
+ expect_branch refs/heads/origin/remote-del two &&
+ expect_branch refs/heads/remotes/origin/remote-del two
+'
+
+test_expect_failure 'disallow deleting remote branch via @{-1}' '
+ git update-ref refs/remotes/origin/previous one &&
+
+ git checkout -b origin/previous two &&
+ git checkout master &&
+
+ test_must_fail git branch -r -D @{-1} &&
+ expect_branch refs/remotes/origin/previous one &&
+ expect_branch refs/heads/origin/previous two
+'
+
+# The thing we are testing here is that "@" is the real branch refs/heads/@,
+# and not refs/heads/HEAD. These tests should not imply that refs/heads/@ is a
+# sane thing, but it _is_ technically allowed for now. If we disallow it, these
+# can be switched to test_must_fail.
+test_expect_failure 'create branch named "@"' '
+ git branch -f @ one &&
+ expect_branch refs/heads/@ one
+'
+
+test_expect_failure 'delete branch named "@"' '
+ git update-ref refs/heads/@ two &&
+ git branch -D @ &&
+ expect_deleted refs/heads/@
+'
+
+test_done