[RFC][PATCH] t-prio-queue: simplify using compound literals

["René Scharfe" <l.s.r@web.de>]

Test names like "basic" are mentioned seven times in the code (ignoring
case): Twice when defining the input and result macros, thrice when
defining the test function, and twice again when calling it.  Reduce
that to a single time by using compound literals to pass the input and
result arrays via TEST_INPUT to test_prio_queue().

Signed-off-by: René Scharfe <l.s.r@web.de>
---
C99 added compound literals.  Are we ready to use them?

Test definitions become more compact, but look busier due to the added
punctuation.  We could hide some of it with a sugary macro like this:
#define INT_ARRAY(...) ((int []){ __VA_ARGS__ })

 t/unit-tests/t-prio-queue.c | 51 +++++++++++++------------------------
 1 file changed, 17 insertions(+), 34 deletions(-)

diff --git a/t/unit-tests/t-prio-queue.c b/t/unit-tests/t-prio-queue.c
index 5358346361..7a4e5780e1 100644
--- a/t/unit-tests/t-prio-queue.c
+++ b/t/unit-tests/t-prio-queue.c
@@ -66,43 +66,26 @@ static void test_prio_queue(int *input, size_t input_size,
 	clear_prio_queue(&pq);
 }

-#define BASIC_INPUT 2, 6, 3, 10, 9, 5, 7, 4, 5, 8, 1, DUMP
-#define BASIC_RESULT 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 10
-
-#define MIXED_PUT_GET_INPUT 6, 2, 4, GET, 5, 3, GET, GET, 1, DUMP
-#define MIXED_PUT_GET_RESULT 2, 3, 4, 1, 5, 6
-
-#define EMPTY_QUEUE_INPUT 1, 2, GET, GET, GET, 1, 2, GET, GET, GET
-#define EMPTY_QUEUE_RESULT 1, 2, MISSING, 1, 2, MISSING
-
-#define STACK_INPUT STACK, 8, 1, 5, 4, 6, 2, 3, DUMP
-#define STACK_RESULT 3, 2, 6, 4, 5, 1, 8
-
-#define REVERSE_STACK_INPUT STACK, 1, 2, 3, 4, 5, 6, REVERSE, DUMP
-#define REVERSE_STACK_RESULT 1, 2, 3, 4, 5, 6
-
-#define TEST_INPUT(INPUT, RESULT, name)			\
-  static void test_##name(void)				\
-{								\
-	int input[] = {INPUT};					\
-	int result[] = {RESULT};				\
-	test_prio_queue(input, ARRAY_SIZE(input),		\
-			result, ARRAY_SIZE(result));		\
-}
-
-TEST_INPUT(BASIC_INPUT, BASIC_RESULT, basic)
-TEST_INPUT(MIXED_PUT_GET_INPUT, MIXED_PUT_GET_RESULT, mixed)
-TEST_INPUT(EMPTY_QUEUE_INPUT, EMPTY_QUEUE_RESULT, empty)
-TEST_INPUT(STACK_INPUT, STACK_RESULT, stack)
-TEST_INPUT(REVERSE_STACK_INPUT, REVERSE_STACK_RESULT, reverse)
+#define TEST_INPUT(input, result) \
+	test_prio_queue(input, ARRAY_SIZE(input), result, ARRAY_SIZE(result))

 int cmd_main(int argc, const char **argv)
 {
-	TEST(test_basic(), "prio-queue works for basic input");
-	TEST(test_mixed(), "prio-queue works for mixed put & get commands");
-	TEST(test_empty(), "prio-queue works when queue is empty");
-	TEST(test_stack(), "prio-queue works when used as a LIFO stack");
-	TEST(test_reverse(), "prio-queue works when LIFO stack is reversed");
+	TEST(TEST_INPUT(((int []){ 2, 6, 3, 10, 9, 5, 7, 4, 5, 8, 1, DUMP }),
+			((int []){ 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 10 })),
+	     "prio-queue works for basic input");
+	TEST(TEST_INPUT(((int []){ 6, 2, 4, GET, 5, 3, GET, GET, 1, DUMP }),
+			((int []){ 2, 3, 4, 1, 5, 6 })),
+	     "prio-queue works for mixed put & get commands");
+	TEST(TEST_INPUT(((int []){ 1, 2, GET, GET, GET, 1, 2, GET, GET, GET }),
+			((int []){ 1, 2, MISSING, 1, 2, MISSING })),
+	     "prio-queue works when queue is empty");
+	TEST(TEST_INPUT(((int []){ STACK, 8, 1, 5, 4, 6, 2, 3, DUMP }),
+			((int []){ 3, 2, 6, 4, 5, 1, 8 })),
+	     "prio-queue works when used as a LIFO stack");
+	TEST(TEST_INPUT(((int []){ STACK, 1, 2, 3, 4, 5, 6, REVERSE, DUMP }),
+			((int []){ 1, 2, 3, 4, 5, 6 })),
+	     "prio-queue works when LIFO stack is reversed");

 	return test_done();
 }
--
2.44.0