git-p4: add failing test for "don't exclude other files with same prefix"

In preparation for a fix, add a failing test case to test that
git-p4 doesn't exclude files with the same prefix unintentionally
when exclude paths are specified without a trailing /.
I.e., don't exclude "//depot/file_dont_exclude" if run with "-//depot/file".
or don't exclude "//depot/discard_file_not" if run with "-//depot/discard_file".

Signed-off-by: Andrey Mazo <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: Mazo, Andrey

t/t9817-git-p4-exclude.sh

@@ -22,7 +22,9 @@ test_expect_success 'create exclude repo' '
 		mkdir -p wanted discard &&
 		echo wanted >wanted/foo &&
 		echo discard >discard/foo &&
-		p4 add wanted/foo discard/foo &&
+		echo discard_file >discard_file &&
+		echo discard_file_not >discard_file_not &&
+		p4 add wanted/foo discard/foo discard_file discard_file_not &&
 		p4 submit -d "initial revision"
 	)
 '
@@ -33,7 +35,9 @@ test_expect_success 'check the repo was created correctly' '
 	(
 		cd "$git" &&
 		test_path_is_file wanted/foo &&
-		test_path_is_file discard/foo
+		test_path_is_file discard/foo &&
+		test_path_is_file discard_file &&
+		test_path_is_file discard_file_not
 	)
 '
 
@@ -43,7 +47,21 @@ test_expect_success 'clone, excluding part of repo' '
 	(
 		cd "$git" &&
 		test_path_is_file wanted/foo &&
-		test_path_is_missing discard/foo
+		test_path_is_missing discard/foo &&
+		test_path_is_file discard_file &&
+		test_path_is_file discard_file_not
+	)
+'
+
+test_expect_failure 'clone, excluding single file, no trailing /' '
+	test_when_finished cleanup_git &&
+	git p4 clone -//depot/discard_file --dest="$git" //depot/...@all &&
+	(
+		cd "$git" &&
+		test_path_is_file wanted/foo &&
+		test_path_is_file discard/foo &&
+		test_path_is_missing discard_file &&
+		test_path_is_file discard_file_not
 	)
 '
 
@@ -52,15 +70,38 @@ test_expect_success 'clone, then sync with exclude' '
 	git p4 clone -//depot/discard/... --dest="$git" //depot/...@all &&
 	(
 		cd "$cli" &&
-		p4 edit wanted/foo discard/foo &&
+		p4 edit wanted/foo discard/foo discard_file_not &&
 		date >>wanted/foo &&
 		date >>discard/foo &&
+		date >>discard_file_not &&
 		p4 submit -d "updating" &&
 
 		cd "$git" &&
 		git p4 sync -//depot/discard/... &&
 		test_path_is_file wanted/foo &&
-		test_path_is_missing discard/foo
+		test_path_is_missing discard/foo &&
+		test_path_is_file discard_file &&
+		test_path_is_file discard_file_not
+	)
+'
+
+test_expect_failure 'clone, then sync with exclude, no trailing /' '
+	test_when_finished cleanup_git &&
+	git p4 clone -//depot/discard/... -//depot/discard_file --dest="$git" //depot/...@all &&
+	(
+		cd "$cli" &&
+		p4 edit wanted/foo discard/foo discard_file_not &&
+		date >>wanted/foo &&
+		date >>discard/foo &&
+		date >>discard_file_not &&
+		p4 submit -d "updating" &&
+
+		cd "$git" &&
+		git p4 sync -//depot/discard/... -//depot/discard_file &&
+		test_path_is_file wanted/foo &&
+		test_path_is_missing discard/foo &&
+		test_path_is_missing discard_file &&
+		test_path_is_file discard_file_not
 	)
 '