t2405: clarify test descriptions and simplify test

When 'checkout --to' functionality was moved to 'worktree add', tests were adapted
in f194b1e (tests: worktree: retrofit "checkout --to" tests for "worktree add",
2015-07-06).

The calls were changed to 'worktree add' in this test (then t7410), but the test
descriptions were not updated, keeping 'checkout' instead of using the new
terminology (linked worktrees).

Also, in the test each worktree is created in
$TRASH_DIRECTORY/<leading-directory>/main, where the name of <leading-directory>
carries some information about what behavior each test verifies. This directory
structure is not mandatory for the tests; the worktrees can live next to one
another in the trash directory.

Clarify the tests by using the right terminology, and remove the unnecessary
leading directories such that all superproject worktrees are directly next to one
another in the trash directory.

Signed-off-by: Philippe Blain <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: phil-blain

t/t2405-worktree-submodule.sh

@@ -18,43 +18,39 @@ test_expect_success 'setup: create origin repos'  '
 	git -C origin/main commit -m "sub updated"
 '
 
-test_expect_success 'setup: clone' '
-	mkdir clone &&
-	git -C clone clone --recursive "$base_path/origin/main"
+test_expect_success 'setup: clone superproject to create main worktree' '
+	git clone --recursive "$base_path/origin/main" main
 '
 
 rev1_hash_main=$(git --git-dir=origin/main/.git show --pretty=format:%h -q "HEAD~1")
 rev1_hash_sub=$(git --git-dir=origin/sub/.git show --pretty=format:%h -q "HEAD~1")
 
-test_expect_success 'checkout main' '
-	mkdir default_checkout &&
-	git -C clone/main worktree add "$base_path/default_checkout/main" "$rev1_hash_main"
+test_expect_success 'add superproject worktree' '
+	git -C main worktree add "$base_path/worktree" "$rev1_hash_main"
 '
 
-test_expect_failure 'can see submodule diffs just after checkout' '
-	git -C default_checkout/main diff --submodule master"^!" >out &&
+test_expect_failure 'submodule is checked out just after worktree add' '
+	git -C worktree diff --submodule master"^!" >out &&
 	grep "file1 updated" out
 '
 
-test_expect_success 'checkout main and initialize independent clones' '
-	mkdir fully_cloned_submodule &&
-	git -C clone/main worktree add "$base_path/fully_cloned_submodule/main" "$rev1_hash_main" &&
-	git -C fully_cloned_submodule/main submodule update
+test_expect_success 'add superproject worktree and initialize submodules' '
+	git -C main worktree add "$base_path/worktree-submodule-update" "$rev1_hash_main" &&
+	git -C worktree-submodule-update submodule update
 '
 
-test_expect_success 'can see submodule diffs after independent cloning' '
-	git -C fully_cloned_submodule/main diff --submodule master"^!" >out &&
+test_expect_success 'submodule is checked out just after submodule update in linked worktree' '
+	git -C worktree-submodule-update diff --submodule master"^!" >out &&
 	grep "file1 updated" out
 '
 
-test_expect_success 'checkout sub manually' '
-	mkdir linked_submodule &&
-	git -C clone/main worktree add "$base_path/linked_submodule/main" "$rev1_hash_main" &&
-	git -C clone/main/sub worktree add "$base_path/linked_submodule/main/sub" "$rev1_hash_sub"
+test_expect_success 'add superproject worktree and manually add submodule worktree' '
+	git -C main worktree add "$base_path/linked_submodule" "$rev1_hash_main" &&
+	git -C main/sub worktree add "$base_path/linked_submodule/sub" "$rev1_hash_sub"
 '
 
-test_expect_success 'can see submodule diffs after manual checkout of linked submodule' '
-	git -C linked_submodule/main diff --submodule master"^!" >out &&
+test_expect_success 'submodule is checked out after manually adding submodule worktree' '
+	git -C linked_submodule diff --submodule master"^!" >out &&
 	grep "file1 updated" out
 '