t: port helper/test-oid-array.c to unit-tests/t-oid-array.c

helper/test-oid-array.c along with t0064-oid-array.sh test the
oid-array.h API, which provides storage and processing
efficiency over large lists of object identifiers.

Migrate them to the unit testing framework for better runtime
performance and efficiency. As we don't initialize a repository
in these tests, the hash algo that functions like oid_array_lookup()
use is not initialized, therefore call repo_set_hash_algo() to
initialize it. And init_hash_algo():lib-oid.c can aid in this
process, so make it public.

Mentored-by: Christian Couder <chriscool@tuxfamily.org>
Mentored-by: Kaartic Sivaraam <kaartic.sivaraam@gmail.com>
Helped-by: Phillip Wood <phillip.wood123@gmail.com>
Signed-off-by: Ghanshyam Thakkar <shyamthakkar001@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 0 insertions, 49 deletions

diff --git a/t/helper/test-oid-array.c b/t/helper/test-oid-array.c
deleted file mode 100644
index 076b849cbf..0000000000
--- a/t/helper/test-oid-array.c
+++ /dev/null
@@ -1,49 +0,0 @@
-#define USE_THE_REPOSITORY_VARIABLE
-
-#include "test-tool.h"
-#include "hex.h"
-#include "oid-array.h"
-#include "setup.h"
-#include "strbuf.h"
-
-static int print_oid(const struct object_id *oid, void *data UNUSED)
-{
-	puts(oid_to_hex(oid));
-	return 0;
-}
-
-int cmd__oid_array(int argc UNUSED, const char **argv UNUSED)
-{
-	struct oid_array array = OID_ARRAY_INIT;
-	struct strbuf line = STRBUF_INIT;
-	int nongit_ok;
-
-	setup_git_directory_gently(&nongit_ok);
-	if (nongit_ok)
-		repo_set_hash_algo(the_repository, GIT_HASH_SHA1);
-
-	while (strbuf_getline(&line, stdin) != EOF) {
-		const char *arg;
-		struct object_id oid;
-
-		if (skip_prefix(line.buf, "append ", &arg)) {
-			if (get_oid_hex(arg, &oid))
-				die("not a hexadecimal oid: %s", arg);
-			oid_array_append(&array, &oid);
-		} else if (skip_prefix(line.buf, "lookup ", &arg)) {
-			if (get_oid_hex(arg, &oid))
-				die("not a hexadecimal oid: %s", arg);
-			printf("%d\n", oid_array_lookup(&array, &oid));
-		} else if (!strcmp(line.buf, "clear"))
-			oid_array_clear(&array);
-		else if (!strcmp(line.buf, "for_each_unique"))
-			oid_array_for_each_unique(&array, print_oid, NULL);
-		else
-			die("unknown command: %s", line.buf);
-	}
-
-	strbuf_release(&line);
-	oid_array_clear(&array);
-
-	return 0;
-}