test: add tests for find_last_group()

source/tests/Makefile

@@ -3,6 +3,7 @@ test-obj-y += source/tests/ftl/mock.o
 test-obj-y += source/tests/ftl/find_block.o
 test-obj-y += source/tests/ftl/find_block_div.o
 test-obj-y += source/tests/ftl/find_last_block.o
+test-obj-y += source/tests/ftl/find_last_group.o
 test-obj-y += source/tests/ftl/next_upage.o
 test-obj-y += source/tests/ftl/read_page_group.o
 test-obj-y += source/tests/ftl/read_page_desc.o

source/tests/ftl/find_last_group.c

@@ -0,0 +1,156 @@
+#include <stdarg.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+#include <setjmp.h>
+
+#include <cmocka.h>
+
+#include <bitops.h>
+#include <flash.h>
+#include <ftl.h>
+#include <macros.h>
+
+uint32_t find_last_group(struct ftl_map *map, uint32_t block);
+
+static void test_middle(void **state)
+{
+	struct ftl_map map;
+	uint32_t ret;
+
+	(void)state;
+
+	map.log2_groups_per_block = ilog2(8);
+
+	expect_value(__wrap_is_group_erased, map, &map);
+	expect_value(__wrap_is_group_erased, group, 32 + 3);
+	will_return(__wrap_is_group_erased, 0);
+
+	expect_value(__wrap_is_group_erased, map, &map);
+	expect_value(__wrap_is_group_erased, group, 32 + 4);
+	will_return(__wrap_is_group_erased, 1);
+
+	ret = find_last_group(&map, 4);
+	assert_int_equal(ret, 32 + 3);
+}
+
+static void test_first(void **state)
+{
+	struct ftl_map map;
+	uint32_t ret;
+
+	(void)state;
+
+	map.log2_groups_per_block = ilog2(8);
+
+	expect_value(__wrap_is_group_erased, map, &map);
+	expect_value(__wrap_is_group_erased, group, 32 + 3);
+	will_return(__wrap_is_group_erased, 1);
+
+	expect_value(__wrap_is_group_erased, map, &map);
+	expect_value(__wrap_is_group_erased, group, 32 + 1);
+	will_return(__wrap_is_group_erased, 1);
+
+	ret = find_last_group(&map, 4);
+	assert_int_equal(ret, 32);
+}
+
+static void test_last(void **state)
+{
+	struct ftl_map map;
+	uint32_t ret;
+
+	(void)state;
+
+	map.log2_groups_per_block = ilog2(8);
+
+	expect_value(__wrap_is_group_erased, map, &map);
+	expect_value(__wrap_is_group_erased, group, 32 + 3);
+	will_return(__wrap_is_group_erased, 0);
+
+	expect_value(__wrap_is_group_erased, map, &map);
+	expect_value(__wrap_is_group_erased, group, 32 + 4);
+	will_return(__wrap_is_group_erased, 0);
+
+	expect_value(__wrap_is_group_erased, map, &map);
+	expect_value(__wrap_is_group_erased, group, 32 + 5);
+	will_return(__wrap_is_group_erased, 0);
+
+	expect_value(__wrap_is_group_erased, map, &map);
+	expect_value(__wrap_is_group_erased, group, 32 + 6);
+	will_return(__wrap_is_group_erased, 0);
+
+	expect_value(__wrap_is_group_erased, map, &map);
+	expect_value(__wrap_is_group_erased, group, 32 + 6);
+	will_return(__wrap_is_group_erased, 0);
+
+	expect_value(__wrap_is_group_erased, map, &map);
+	expect_value(__wrap_is_group_erased, group, 32 + 7);
+	will_return(__wrap_is_group_erased, 0);
+
+	ret = find_last_group(&map, 4);
+	assert_int_equal(ret, 32 + 7);
+}
+
+static void test_left_right(void **state)
+{
+	struct ftl_map map;
+	uint32_t ret;
+
+	(void)state;
+
+	map.log2_groups_per_block = ilog2(8);
+
+	expect_value(__wrap_is_group_erased, map, &map);
+	expect_value(__wrap_is_group_erased, group, 32 + 3);
+	will_return(__wrap_is_group_erased, 1);
+
+	expect_value(__wrap_is_group_erased, map, &map);
+	expect_value(__wrap_is_group_erased, group, 32 + 1);
+	will_return(__wrap_is_group_erased, 0);
+
+	expect_value(__wrap_is_group_erased, map, &map);
+	expect_value(__wrap_is_group_erased, group, 32 + 2);
+	will_return(__wrap_is_group_erased, 0);
+
+	ret = find_last_group(&map, 4);
+	assert_int_equal(ret, 32 + 2);
+}
+
+static void test_right_left(void **state)
+{
+	struct ftl_map map;
+	uint32_t ret;
+
+	(void)state;
+
+	map.log2_groups_per_block = ilog2(8);
+
+	expect_value(__wrap_is_group_erased, map, &map);
+	expect_value(__wrap_is_group_erased, group, 32 + 3);
+	will_return(__wrap_is_group_erased, 0);
+
+	expect_value(__wrap_is_group_erased, map, &map);
+	expect_value(__wrap_is_group_erased, group, 32 + 4);
+	will_return(__wrap_is_group_erased, 0);
+
+	expect_value(__wrap_is_group_erased, map, &map);
+	expect_value(__wrap_is_group_erased, group, 32 + 5);
+	will_return(__wrap_is_group_erased, 1);
+
+	ret = find_last_group(&map, 4);
+	assert_int_equal(ret, 32 + 4);
+}
+
+int test_find_last_group(void)
+{
+	const struct CMUnitTest tests[] = {
+		{ "find_last_group: middle", test_middle, NULL, NULL, NULL },
+		{ "find_last_group: first", test_first, NULL, NULL, NULL },
+		{ "find_last_group: last", test_last, NULL, NULL, NULL },
+		{ "find_last_group: left right", test_left_right, NULL, NULL, NULL },
+		{ "find_last_group: right left", test_right_left, NULL, NULL, NULL },
+	};
+
+	return cmocka_run_group_tests_name("find_last_group", tests, NULL, NULL);
+}

source/tests/main.c

@@ -70,6 +70,7 @@ int __wrap_flash_is_erased(struct flash_dev *dev, uint32_t addr, size_t len)
 int test_find_block(void);
 int test_find_block_div(void);
 int test_find_last_block(void);
+int test_find_last_group(void);
 int test_next_upage(void);
 int test_read_page_group(void);
 int test_read_page_desc(void);
@@ -83,6 +84,7 @@ int main(void)
 	count += test_find_block();
 	count += test_find_block_div();
 	count += test_find_last_block();
+	count += test_find_last_group();
 	count += test_next_upage();
 	count += test_read_page_group();
 	count += test_read_page_desc();