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[PATCH v2 4/4] t-ctype: avoid duplicating class names

From
René Scharfe <l.s.r@web.de>
Date
Mar 3, 2024, 10:13 UTC
Message-ID
<20240303101330.20187-5-l.s.r@web.de>
In-Reply-To
<20240303101330.20187-1-l.s.r@web.de>

TEST_CTYPE_FUNC defines a function for testing a character classifier, TEST_CHAR_CLASS calls it, causing the class name to be mentioned twice.

Avoid the need to define a class-specific function by letting TEST_CHAR_CLASS do all the work. This is done by using the internal functions test__run_begin() and test__run_end(), but they do exist to be used in test macros after all.

Alternatively we could unroll the loop to provide a very long expression that tests all 256 characters and EOF and hand that to TEST, but that seems awkward and hard to read.

No change of behavior or output intended.
Signed-off-by: René Scharfe <l.s.r@web.de>
---
 t/unit-tests/t-ctype.c | 64 ++++++++++++++++--------------------------
 1 file changed, 24 insertions(+), 40 deletions(-)
diff --git a/t/unit-tests/t-ctype.c b/t/unit-tests/t-ctype.c
index 02d8569aa3..d6ac1fe678 100644
--- a/t/unit-tests/t-ctype.c
+++ b/t/unit-tests/t-ctype.c
@@ -1,19 +1,19 @@
 #include "test-lib.h"

-/* Macro to test a character type */
-#define TEST_CTYPE_FUNC(func, string) \
-static void test_ctype_##func(void) { \
+#define TEST_CHAR_CLASS(class, string) do { \
 	size_t len = ARRAY_SIZE(string) - 1 + \
 		BUILD_ASSERT_OR_ZERO(ARRAY_SIZE(string) > 0) + \
 		BUILD_ASSERT_OR_ZERO(sizeof(string[0]) == sizeof(char)); \
-	for (int i = 0; i < 256; i++) { \
-		if (!check_int(func(i), ==, !!memchr(string, i, len))) \
-			test_msg("      i: 0x%02x", i); \
+	int skip = test__run_begin(); \
+	if (!skip) { \
+		for (int i = 0; i < 256; i++) { \
+			if (!check_int(class(i), ==, !!memchr(string, i, len)))\
+				test_msg("      i: 0x%02x", i); \
+		} \
+		check(!class(EOF)); \
 	} \
-	check(!func(EOF)); \
-}
-
-#define TEST_CHAR_CLASS(class) TEST(test_ctype_##class(), #class " works")
+	test__run_end(!skip, TEST_LOCATION(), #class " works"); \
+} while (0)

 #define DIGIT "0123456789"
 #define LOWER "abcdefghijklmnopqrstuvwxyz"
@@ -33,37 +33,21 @@ static void test_ctype_##func(void) { \
 	"\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f" \
 	"\x7f"

-TEST_CTYPE_FUNC(isdigit, DIGIT)
-TEST_CTYPE_FUNC(isspace, " \n\r\t")
-TEST_CTYPE_FUNC(isalpha, LOWER UPPER)
-TEST_CTYPE_FUNC(isalnum, LOWER UPPER DIGIT)
-TEST_CTYPE_FUNC(is_glob_special, "*?[\\")
-TEST_CTYPE_FUNC(is_regex_special, "$()*+.?[\\^{|")
-TEST_CTYPE_FUNC(is_pathspec_magic, "!\"#%&',-/:;<=>@_`~")
-TEST_CTYPE_FUNC(isascii, ASCII)
-TEST_CTYPE_FUNC(islower, LOWER)
-TEST_CTYPE_FUNC(isupper, UPPER)
-TEST_CTYPE_FUNC(iscntrl, CNTRL)
-TEST_CTYPE_FUNC(ispunct, PUNCT)
-TEST_CTYPE_FUNC(isxdigit, DIGIT "abcdefABCDEF")
-TEST_CTYPE_FUNC(isprint, LOWER UPPER DIGIT PUNCT " ")
-
 int cmd_main(int argc, const char **argv) {
-	/* Run all character type tests */
-	TEST_CHAR_CLASS(isspace);
-	TEST_CHAR_CLASS(isdigit);
-	TEST_CHAR_CLASS(isalpha);
-	TEST_CHAR_CLASS(isalnum);
-	TEST_CHAR_CLASS(is_glob_special);
-	TEST_CHAR_CLASS(is_regex_special);
-	TEST_CHAR_CLASS(is_pathspec_magic);
-	TEST_CHAR_CLASS(isascii);
-	TEST_CHAR_CLASS(islower);
-	TEST_CHAR_CLASS(isupper);
-	TEST_CHAR_CLASS(iscntrl);
-	TEST_CHAR_CLASS(ispunct);
-	TEST_CHAR_CLASS(isxdigit);
-	TEST_CHAR_CLASS(isprint);
+	TEST_CHAR_CLASS(isspace, " \n\r\t");
+	TEST_CHAR_CLASS(isdigit, DIGIT);
+	TEST_CHAR_CLASS(isalpha, LOWER UPPER);
+	TEST_CHAR_CLASS(isalnum, LOWER UPPER DIGIT);
+	TEST_CHAR_CLASS(is_glob_special, "*?[\\");
+	TEST_CHAR_CLASS(is_regex_special, "$()*+.?[\\^{|");
+	TEST_CHAR_CLASS(is_pathspec_magic, "!\"#%&',-/:;<=>@_`~");
+	TEST_CHAR_CLASS(isascii, ASCII);
+	TEST_CHAR_CLASS(islower, LOWER);
+	TEST_CHAR_CLASS(isupper, UPPER);
+	TEST_CHAR_CLASS(iscntrl, CNTRL);
+	TEST_CHAR_CLASS(ispunct, PUNCT);
+	TEST_CHAR_CLASS(isxdigit, DIGIT "abcdefABCDEF");
+	TEST_CHAR_CLASS(isprint, LOWER UPPER DIGIT PUNCT " ");

 	return test_done();
 }
--
2.44.0
Previous: René ScharfeNext: Phillip Wood
Message 23 of 30 in “t-ctype: simplify unit test definitions”
  1. 0/3 t-ctype: simplify unit test definitionsRené Scharfe, Feb 25, 2024
  2. 1/3 t-ctype: allow NUL anywhere in the specification stringRené Scharfe, Feb 25, 2024
  3. Eric SunshineFeb 25, 2024
  4. René ScharfeFeb 25, 2024
  5. Eric SunshineFeb 25, 2024
  6. Jeff KingFeb 25, 2024
  7. Eric SunshineFeb 25, 2024
  8. 2/3 t-ctype: avoid duplicating class namesRené Scharfe, Feb 25, 2024
  9. 3/3 t-ctype: do one test per class and charRené Scharfe, Feb 25, 2024
  10. Christian CouderFeb 26, 2024
  11. René ScharfeFeb 26, 2024
  12. Junio C HamanoFeb 26, 2024
  13. Josh SteadmonFeb 26, 2024
  14. Christian CouderFeb 27, 2024
  15. René ScharfeMar 2, 2024
  16. Christian CouderMar 4, 2024
  17. René ScharfeMar 6, 2024
  18. Josh SteadmonMar 4, 2024
  19. Junio C HamanoMar 4, 2024
  20. 0/4 t-ctype: simplify unit test definitionsRené Scharfe, Mar 3, 2024
  21. 2/4 t-ctype: simplify EOF checkRené Scharfe, Mar 3, 2024
  22. 3/4 t-ctype: align output of iRené Scharfe, Mar 3, 2024
  23. 4/4 t-ctype: avoid duplicating class namesRené Scharfe, Mar 3, 2024
  24. Phillip WoodMar 4, 2024
  25. René ScharfeMar 6, 2024
  26. Phillip WoodMar 8, 2024
  27. Phillip WoodMar 9, 2024
  28. René ScharfeMar 10, 2024
  29. 1/4 t-ctype: allow NUL anywhere in the specification stringRené Scharfe, Mar 3, 2024
  30. Christian CouderMar 4, 2024

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