[PATCH 02/11] completion: add test showing subpar git switch completion

[Jacob Keller <jacob.e.keller@intel.com>]

From: Jacob Keller <jacob.keller@gmail.com>

With no options, git switch only allows switching branches or DWIM to
create a local branch tracking a remote branch of the same name.
However, tab completion will expand "git switch <TAB>" to any local
reference, including pseudorefs like HEAD, or tags.

Add a test case which highlights this failure, which will be fixed in
a future refactoring of git switch completion support.

Signed-off-by: Jacob Keller <jacob.keller@gmail.com>
---
 t/t9902-completion.sh | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/t/t9902-completion.sh b/t/t9902-completion.sh
index 03e8188f023d..af4661cbcc73 100755
--- a/t/t9902-completion.sh
+++ b/t/t9902-completion.sh
@@ -1240,6 +1240,19 @@ test_expect_success '__git_complete_fetch_refspecs - fully qualified & prefix' '
 	test_cmp expected out
 '
 
+# TODO: git switch by default should only include local branches and anything which
+# would be understood by the DWIM logic. Currently it will complete most
+# references including pseudorefs like HEAD and FETCH_HEAD, as well as tags.
+# These should not be completed unless certain options have been enabled.
+test_expect_failure 'git switch - with no options, complete local branches and unique remote branch names for DWIM logic' '
+	test_completion "git switch " <<-\EOF
+	branch-in-other Z
+	master Z
+	master-in-other Z
+	matching-branch Z
+	EOF
+'
+
 test_expect_success 'git switch - with --no-guess, complete only local branches' '
 	test_completion "git switch --no-guess " <<-\EOF
 	master Z
-- 
2.25.2