Merge branch 'jk/add-e-doc' into maint

[git.git] / t / t2018-checkout-branch.sh

diff --git a/t/t2018-checkout-branch.sh b/t/t2018-checkout-branch.sh
index 3c130659d6506685ba7eee68810f3b6b693c0fed..fa69016381b0196c49472af51e36948ec7c5a2a9 100755 (executable)
--- a/t/t2018-checkout-branch.sh
+++ b/t/t2018-checkout-branch.sh
@@ -118,4 +118,55 @@ test_expect_success 'checkout -b to an existing branch fails' '
        test_must_fail do_checkout branch2 $HEAD2
 '
 
+test_expect_success 'checkout -B to an existing branch resets branch to HEAD' '
+       git checkout branch1 &&
+
+       do_checkout branch2 "" -B
+'
+
+test_expect_success 'checkout -B to an existing branch from detached HEAD resets branch to HEAD' '
+       git checkout $(git rev-parse --verify HEAD) &&
+
+       do_checkout branch2 "" -B
+'
+
+test_expect_success 'checkout -B to an existing branch with an explicit ref resets branch to that ref' '
+       git checkout branch1 &&
+
+       do_checkout branch2 $HEAD1 -B
+'
+
+test_expect_success 'checkout -B to an existing branch with unmergeable changes fails' '
+       git checkout branch1 &&
+
+       setup_dirty_unmergeable &&
+       test_must_fail 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_expect_success 'checkout -B to an existing branch preserves mergeable changes' '
+       git checkout branch1 &&
+
+       setup_dirty_mergeable &&
+       do_checkout branch2 $HEAD1 -B &&
+       test_dirty_mergeable
+'
+
+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_done