Merge branch 'tb/t5318-cleanup'

Code cleanup.

* tb/t5318-cleanup:
  t5318: test that '--stdin-commits' respects '--[no-]progress'
  t5318: use 'test_must_be_empty'

Author: gitster

t/t5318-commit-graph.sh

@@ -147,7 +147,7 @@ test_expect_success 'Add more commits' '
 test_expect_success 'commit-graph write progress off for redirected stderr' '
 	cd "$TRASH_DIRECTORY/full" &&
 	git commit-graph write 2>err &&
-	test_line_count = 0 err
+	test_must_be_empty err
 '
 
 test_expect_success 'commit-graph write force progress on for stderr' '
@@ -159,13 +159,34 @@ test_expect_success 'commit-graph write force progress on for stderr' '
 test_expect_success 'commit-graph write with the --no-progress option' '
 	cd "$TRASH_DIRECTORY/full" &&
 	git commit-graph write --no-progress 2>err &&
-	test_line_count = 0 err
+	test_must_be_empty err
+'
+
+test_expect_success 'commit-graph write --stdin-commits progress off for redirected stderr' '
+	cd "$TRASH_DIRECTORY/full" &&
+	git rev-parse commits/5 >in &&
+	git commit-graph write --stdin-commits <in 2>err &&
+	test_must_be_empty err
+'
+
+test_expect_success 'commit-graph write --stdin-commits force progress on for stderr' '
+	cd "$TRASH_DIRECTORY/full" &&
+	git rev-parse commits/5 >in &&
+	GIT_PROGRESS_DELAY=0 git commit-graph write --stdin-commits --progress <in 2>err &&
+	test_i18ngrep "Collecting commits from input" err
+'
+
+test_expect_success 'commit-graph write --stdin-commits with the --no-progress option' '
+	cd "$TRASH_DIRECTORY/full" &&
+	git rev-parse commits/5 >in &&
+	git commit-graph write --stdin-commits --no-progress <in 2>err &&
+	test_must_be_empty err
 '
 
 test_expect_success 'commit-graph verify progress off for redirected stderr' '
 	cd "$TRASH_DIRECTORY/full" &&
 	git commit-graph verify 2>err &&
-	test_line_count = 0 err
+	test_must_be_empty err
 '
 
 test_expect_success 'commit-graph verify force progress on for stderr' '
@@ -177,7 +198,7 @@ test_expect_success 'commit-graph verify force progress on for stderr' '
 test_expect_success 'commit-graph verify with the --no-progress option' '
 	cd "$TRASH_DIRECTORY/full" &&
 	git commit-graph verify --no-progress 2>err &&
-	test_line_count = 0 err
+	test_must_be_empty err
 '
 
 # Current graph structure: