[RFD/PATCH 2/5] t2024: Show failure to use refspec when DWIMming remote branch names

[Johan Herland <johan@herland.net>]

When using "git checkout foo" to DWIM the creation of local "foo" from some
existing upstream "foo", we assume conventional refspecs as created by "git
clone" or "git remote add", and fail to work correctly if the current
refspecs do not follow the conventional "refs/remotes/$remote/*" pattern.

Signed-off-by: Johan Herland <johan@herland.net>
---
 t/t2024-checkout-dwim.sh | 52 +++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 51 insertions(+), 1 deletion(-)

diff --git a/t/t2024-checkout-dwim.sh b/t/t2024-checkout-dwim.sh
index 5650d21..36bf52f 100755
--- a/t/t2024-checkout-dwim.sh
+++ b/t/t2024-checkout-dwim.sh
@@ -22,6 +22,7 @@ test_tracking_branch() {
 }
 
 test_expect_success 'setup' '
+	test_commit my_master &&
 	(git init repo_a &&
 	 cd repo_a &&
 	 test_commit a_master &&
@@ -49,7 +50,7 @@ test_expect_success 'checkout of non-existing branch fails' '
 	test_must_fail git checkout xyzzy
 '
 
-test_expect_success 'checkout of branch from multiple remotes fails' '
+test_expect_success 'checkout of branch from multiple remotes fails #1' '
 	test_must_fail git checkout foo
 '
 
@@ -63,4 +64,53 @@ test_expect_success 'checkout of branch from a single remote succeeds #2' '
 	test_tracking_branch baz repo_b refs/remotes/other_b/baz
 '
 
+test_expect_success 'setup more remotes with unconventional refspecs' '
+	git checkout master &&
+	git branch -D bar &&
+	git branch -D baz &&
+	test "$(git rev-parse --verify HEAD)" = "$(git rev-parse --verify my_master)" &&
+	(git init repo_c &&
+	 cd repo_c &&
+	 test_commit c_master &&
+	 git checkout -b bar &&
+	 test_commit c_bar
+	 git checkout -b spam &&
+	 test_commit c_spam
+	) &&
+	(git init repo_d &&
+	 cd repo_d &&
+	 test_commit d_master &&
+	 git checkout -b baz &&
+	 test_commit f_baz
+	 git checkout -b eggs &&
+	 test_commit c_eggs
+	) &&
+	git remote add repo_c repo_c &&
+	git config remote.repo_c.fetch \
+	    "+refs/heads/*:refs/remotes/extra_dir/repo_c/extra_dir/*" &&
+	git fetch repo_c &&
+	git remote add repo_d repo_d &&
+	git config remote.repo_d.fetch \
+	    "+refs/heads/*:refs/repo_d/*" &&
+	git fetch repo_d
+'
+
+test_expect_failure 'checkout of branch from multiple remotes fails #2' '
+	test_must_fail git checkout bar
+'
+
+test_expect_failure 'checkout of branch from multiple remotes fails #3' '
+	test_must_fail git checkout baz
+'
+
+test_expect_failure 'checkout of branch from a single remote succeeds #3' '
+	git checkout spam &&
+	test_tracking_branch spam repo_c refs/remotes/extra_dir/repo_c/extra_dir/spam
+'
+
+test_expect_failure 'checkout of branch from a single remote succeeds #4' '
+	git checkout eggs &&
+	test_tracking_branch eggs repo_d refs/repo_d/eggs
+'
+
 test_done
-- 
1.8.1.3.704.g33f7d4f