t/: migrate helper/test-example-decorate to the unit testing framework

helper/test-example-decorate.c along with t9004-example.sh provide
an example of how to use the functions in decorate.h (which provides
a data structure that associates Git objects to void pointers) and
also test their output.

Migrate them to the new unit testing framework for better debugging
and runtime performance.

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

3 files changed, 0 insertions, 80 deletions

diff --git a/t/helper/test-example-decorate.c b/t/helper/test-example-decorate.c
deleted file mode 100644
index 8f59f6be4c..0000000000
--- a/t/helper/test-example-decorate.c
+++ /dev/null
@@ -1,78 +0,0 @@
-#include "test-tool.h"
-#include "git-compat-util.h"
-#include "object.h"
-#include "decorate.h"
-#include "repository.h"
-
-int cmd__example_decorate(int argc UNUSED, const char **argv UNUSED)
-{
-	struct decoration n;
-	struct object_id one_oid = { {1} };
-	struct object_id two_oid = { {2} };
-	struct object_id three_oid = { {3} };
-	struct object *one, *two, *three;
-
-	int decoration_a, decoration_b;
-
-	void *ret;
-
-	int i, objects_noticed = 0;
-
-	/*
-	 * The struct must be zero-initialized.
-	 */
-	memset(&n, 0, sizeof(n));
-
-	/*
-	 * Add 2 objects, one with a non-NULL decoration and one with a NULL
-	 * decoration.
-	 */
-	one = lookup_unknown_object(the_repository, &one_oid);
-	two = lookup_unknown_object(the_repository, &two_oid);
-	ret = add_decoration(&n, one, &decoration_a);
-	if (ret)
-		BUG("when adding a brand-new object, NULL should be returned");
-	ret = add_decoration(&n, two, NULL);
-	if (ret)
-		BUG("when adding a brand-new object, NULL should be returned");
-
-	/*
-	 * When re-adding an already existing object, the old decoration is
-	 * returned.
-	 */
-	ret = add_decoration(&n, one, NULL);
-	if (ret != &decoration_a)
-		BUG("when readding an already existing object, existing decoration should be returned");
-	ret = add_decoration(&n, two, &decoration_b);
-	if (ret)
-		BUG("when readding an already existing object, existing decoration should be returned");
-
-	/*
-	 * Lookup returns the added declarations, or NULL if the object was
-	 * never added.
-	 */
-	ret = lookup_decoration(&n, one);
-	if (ret)
-		BUG("lookup should return added declaration");
-	ret = lookup_decoration(&n, two);
-	if (ret != &decoration_b)
-		BUG("lookup should return added declaration");
-	three = lookup_unknown_object(the_repository, &three_oid);
-	ret = lookup_decoration(&n, three);
-	if (ret)
-		BUG("lookup for unknown object should return NULL");
-
-	/*
-	 * The user can also loop through all entries.
-	 */
-	for (i = 0; i < n.size; i++) {
-		if (n.entries[i].base)
-			objects_noticed++;
-	}
-	if (objects_noticed != 2)
-		BUG("should have 2 objects");
-
-	clear_decoration(&n, NULL);
-
-	return 0;
-}
diff --git a/t/helper/test-tool.c b/t/helper/test-tool.c
index f6fd0fe491..2d82515f56 100644
--- a/t/helper/test-tool.c
+++ b/t/helper/test-tool.c
@@ -29,7 +29,6 @@ static struct test_cmd cmds[] = {
 	{ "dump-split-index", cmd__dump_split_index },
 	{ "dump-untracked-cache", cmd__dump_untracked_cache },
 	{ "env-helper", cmd__env_helper },
-	{ "example-decorate", cmd__example_decorate },
 	{ "example-tap", cmd__example_tap },
 	{ "find-pack", cmd__find_pack },
 	{ "fsmonitor-client", cmd__fsmonitor_client },
diff --git a/t/helper/test-tool.h b/t/helper/test-tool.h
index 868f33453c..bc334183c3 100644
--- a/t/helper/test-tool.h
+++ b/t/helper/test-tool.h
@@ -23,7 +23,6 @@ int cmd__dump_split_index(int argc, const char **argv);
 int cmd__dump_untracked_cache(int argc, const char **argv);
 int cmd__dump_reftable(int argc, const char **argv);
 int cmd__env_helper(int argc, const char **argv);
-int cmd__example_decorate(int argc, const char **argv);
 int cmd__example_tap(int argc, const char **argv);
 int cmd__find_pack(int argc, const char **argv);
 int cmd__fsmonitor_client(int argc, const char **argv);