[PATCH v3 4/4] test-helpers: split "file-size" into "file-size(s)"

["Ævar Arnfjörð Bjarmason" <avarab@gmail.com>]

Split the "file-size" helper into two helpers, one that takes 1
argument, and another one that takes N.

This allows us to remove the "BUG" check in test-lib-functions.sh for
briefer -x output, and more importantly will clearly distinguish those
cases where we expect one argument v.s. many.

The use in t1050-large.sh wants to check just one pack, we used to
check that explicitly before 53b67a801bb (tests: consolidate the
`file_size` function into `test-lib-functions.sh`, 2020-11-07), now we
do so again.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
---
 t/helper/test-path-utils.c  | 11 ++++++++++-
 t/t1050-large.sh            |  2 +-
 t/t5319-multi-pack-index.sh |  6 +++---
 t/test-lib-functions.sh     |  3 +--
 4 files changed, 15 insertions(+), 7 deletions(-)

diff --git a/t/helper/test-path-utils.c b/t/helper/test-path-utils.c
index eed3068ffb7..17645da4a1c 100644
--- a/t/helper/test-path-utils.c
+++ b/t/helper/test-path-utils.c
@@ -280,6 +280,8 @@ static int protect_ntfs_hfs_benchmark(int argc, const char **argv)
 
 int cmd__path_utils(int argc, const char **argv)
 {
+	int is_file_size, is_file_sizes;
+
 	if (argc == 3 && !strcmp(argv[1], "normalize_path_copy")) {
 		char *buf = xmallocz(strlen(argv[2]));
 		int rv = normalize_path_copy(buf, argv[2]);
@@ -395,10 +397,17 @@ int cmd__path_utils(int argc, const char **argv)
 		return !!res;
 	}
 
-	if (argc > 2 && !strcmp(argv[1], "file-size")) {
+	is_file_size = !strcmp(argv[1], "file-size");
+	is_file_sizes = !strcmp(argv[1], "file-sizes");
+	if (argc > 2 && (is_file_size || is_file_sizes)) {
 		int res = 0, i;
 		struct stat st;
 
+		if (is_file_size && argc > 3) {
+			res = error("too many arguments to is-file-size, use is-file-sizes?");
+			return res;
+		}
+
 		for (i = 2; i < argc; i++)
 			if (stat(argv[i], &st))
 				res = error_errno("Cannot stat '%s'", argv[i]);
diff --git a/t/t1050-large.sh b/t/t1050-large.sh
index 4bab6a513c5..0b76ab0e3f9 100755
--- a/t/t1050-large.sh
+++ b/t/t1050-large.sh
@@ -23,7 +23,7 @@ do
 	test_expect_success "add with $config" '
 		test_when_finished "rm -f .git/objects/pack/pack-*.* .git/index" &&
 		git $config add large1 &&
-		sz=$(test_file_size .git/objects/pack/pack-*.pack) &&
+		sz=$(test-tool path-utils file-size .git/objects/pack/pack-*.pack) &&
 		case "$expect" in
 		small) test "$sz" -le 100000 ;;
 		large) test "$sz" -ge 100000 ;;
diff --git a/t/t5319-multi-pack-index.sh b/t/t5319-multi-pack-index.sh
index 5641d158dfc..baeda407b90 100755
--- a/t/t5319-multi-pack-index.sh
+++ b/t/t5319-multi-pack-index.sh
@@ -648,7 +648,7 @@ test_expect_success 'repack with minimum size does not alter existing packs' '
 		test-tool chmtime =-3 .git/objects/pack/pack-B* &&
 		test-tool chmtime =-2 .git/objects/pack/pack-A* &&
 		ls .git/objects/pack >expect &&
-		MINSIZE=$(test-tool path-utils file-size .git/objects/pack/*pack | sort -n | head -n 1) &&
+		MINSIZE=$(test-tool path-utils file-sizes .git/objects/pack/*pack | sort -n | head -n 1) &&
 		git multi-pack-index repack --batch-size=$MINSIZE &&
 		ls .git/objects/pack >actual &&
 		test_cmp expect actual
@@ -672,7 +672,7 @@ test_expect_success 'repack respects repack.packKeptObjects=false' '
 		test_line_count = 5 idx-list &&
 		test-tool read-midx .git/objects | grep idx >midx-list &&
 		test_line_count = 5 midx-list &&
-		THIRD_SMALLEST_SIZE=$(test-tool path-utils file-size .git/objects/pack/*pack | sort -n | sed -n 3p) &&
+		THIRD_SMALLEST_SIZE=$(test-tool path-utils file-sizes .git/objects/pack/*pack | sort -n | sed -n 3p) &&
 		BATCH_SIZE=$((THIRD_SMALLEST_SIZE + 1)) &&
 		git multi-pack-index repack --batch-size=$BATCH_SIZE &&
 		ls .git/objects/pack/*idx >idx-list &&
@@ -687,7 +687,7 @@ test_expect_success 'repack creates a new pack' '
 		cd dup &&
 		ls .git/objects/pack/*idx >idx-list &&
 		test_line_count = 5 idx-list &&
-		THIRD_SMALLEST_SIZE=$(test-tool path-utils file-size .git/objects/pack/*pack | sort -n | head -n 3 | tail -n 1) &&
+		THIRD_SMALLEST_SIZE=$(test-tool path-utils file-sizes .git/objects/pack/*pack | sort -n | head -n 3 | tail -n 1) &&
 		BATCH_SIZE=$(($THIRD_SMALLEST_SIZE + 1)) &&
 		git multi-pack-index repack --batch-size=$BATCH_SIZE &&
 		ls .git/objects/pack/*idx >idx-list &&
diff --git a/t/test-lib-functions.sh b/t/test-lib-functions.sh
index 0adb9fd124d..602d77dee37 100644
--- a/t/test-lib-functions.sh
+++ b/t/test-lib-functions.sh
@@ -839,8 +839,7 @@ test_line_count () {
 }
 
 test_file_size () {
-	test "$#" -ne 1 && BUG "1 param"
-	test-tool path-utils file-size "$1"
+	test-tool path-utils file-size "$@"
 }
 
 # Returns success if a comma separated string of keywords ($1) contains a
-- 
2.31.1.734.gdef39492517