commit 778fcd3c0b4fdd3f996dac0ac63be7e4644669af
parent 7fd05a0875b829f295c2c7a95d6105ff95ea72eb
Author: Roberto E. Vargas Caballero <k0ga@shike2.net>
Date: Mon, 27 Apr 2026 23:28:22 +0200
tests/libc: Add 0074-strftime
Diffstat:
3 files changed, 669 insertions(+), 0 deletions(-)
diff --git a/tests/libc/execute/.gitignore b/tests/libc/execute/.gitignore
@@ -72,3 +72,4 @@ test.log
0071-clock
0072-mktime
0073-mktime
+0074-strftime
diff --git a/tests/libc/execute/0074-strftime.c b/tests/libc/execute/0074-strftime.c
@@ -0,0 +1,667 @@
+/*
+output:
+testing
+test1:
+ test 0
+ n=6:Friday
+ test 1
+ n=7:January
+ test 2
+ n=2:20
+ test 3
+ n=8:01/01/21
+ test 4
+ n=10:2021-01-01
+ test 5
+ n=4:2020
+ test 6
+ n=2:10
+ test 7
+ n=2:10
+ test 8
+ n=2:30
+ test 9
+ n=5:10:30
+ test 10
+ n=2:59
+ test 11
+ n=8:14:30:59
+ test 12
+ n=2:00
+ test 13
+ n=2:53
+ test 14
+ n=2:00
+ test 15
+ n=8:14:30:59
+ test 16
+ n=4:2021
+ test 17
+ n=4:2021
+ test 18
+ n=3:UTC
+ test 19
+ n=3:Fri
+ test 20
+ n=3:Jan
+ test 21
+ n=24:Fri Jan 1 10:30:59 2021
+ test 22
+ n=2:01
+ test 23
+ n=2: 1
+ test 24
+ n=2:20
+ test 25
+ n=3:Jan
+ test 26
+ n=3:001
+ test 27
+ n=2:01
+ test 28
+ n=1:
+
+ test 29
+ n=2:AM
+ test 30
+ n=2:PM
+ test 31
+ n=1:%
+ test 32
+ n=11:02:30:59 PM
+ test 33
+ n=1:
+ test 34
+ n=1:5
+ test 35
+ n=1:5
+ test 36
+ n=8:01/01/21
+ test 37
+ n=2:21
+ test 38
+ n=5:+0000
+ test 39
+ n=7:49 1997
+ test 40
+ n=7:53 1998
+test2:
+test3:
+test4:
+test5:
+test6:
+test7:
+test8:
+test9:
+test10:
+test11:
+test12:
+test13:
+test14:
+test15:
+test16:
+test17:
+test18:
+test18:
+done
+end:
+*/
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+
+#define NELEM(x) (sizeof(x)/sizeof((x)[0]))
+
+struct test {
+ struct tm tm;
+ char *fmt;
+} tests[] = {
+ //sec, min,hour,mday,mon,year,wday,yday,isdst, fmt
+ {{ 59, 30, 10, 1, 0, 121, 5, 0}, "%A"},
+ {{ 59, 30, 10, 1, 0, 121, 5, 0}, "%B"},
+ {{ 59, 30, 10, 1, 0, 121, 5, 0}, "%C"},
+ {{ 59, 30, 10, 1, 0, 121, 5, 0}, "%D"},
+ {{ 59, 30, 10, 1, 0, 121, 5, 0}, "%F"},
+ {{ 59, 30, 10, 1, 0, 121, 5, 0}, "%G"},
+ {{ 59, 30, 10, 1, 0, 121, 5, 0}, "%H"},
+ {{ 59, 30, 10, 1, 0, 121, 5, 0}, "%I"},
+ {{ 59, 30, 10, 1, 0, 121, 5, 0}, "%M"},
+ {{ 59, 30, 10, 1, 0, 121, 5, 0}, "%R"},
+ {{ 59, 30, 14, 1, 0, 121, 5, 0}, "%S"},
+ {{ 59, 30, 14, 1, 0, 121, 5, 0}, "%T"},
+ {{ 59, 30, 14, 1, 0, 121, 5, 0}, "%U"},
+ {{ 59, 30, 14, 1, 0, 121, 5, 0}, "%V"},
+ {{ 59, 30, 14, 1, 0, 121, 5, 0}, "%W"},
+ {{ 59, 30, 14, 1, 0, 121, 5, 0}, "%X"},
+ {{ 59, 30, 14, 1, 0, 121, 5, 0}, "%Y"},
+ {{ 59, 30, 14, 1, 0, 121, 5, 0}, "%Y"},
+ {{ 59, 30, 14, 1, 0, 121, 5, 0}, "%Z"},
+ {{ 59, 30, 10, 1, 0, 121, 5, 0}, "%a"},
+ {{ 59, 30, 10, 1, 0, 121, 5, 0}, "%b"},
+ {{ 59, 30, 10, 1, 0, 121, 5, 0}, "%c"},
+ {{ 59, 30, 10, 1, 0, 121, 5, 0}, "%d"},
+ {{ 59, 30, 10, 1, 0, 121, 5, 0}, "%e"},
+ {{ 59, 30, 10, 1, 0, 121, 5, 0}, "%g"},
+ {{ 59, 30, 10, 1, 0, 121, 5, 0}, "%h"},
+ {{ 59, 30, 14, 1, 0, 121, 5, 0}, "%j"},
+ {{ 59, 30, 14, 1, 0, 121, 5, 0}, "%m"},
+ {{0}, "%n"},
+ {{ 59, 30, 10, 1, 0, 121, 5, 0}, "%p"},
+ {{ 59, 30, 14, 1, 0, 121, 5, 0}, "%p"},
+ {{0}, "%%"},
+ {{ 59, 30, 14, 1, 0, 121, 5, 0}, "%r"},
+ {{0}, "%t"},
+ {{ 59, 30, 14, 1, 0, 121, 5, 0}, "%u"},
+ {{ 59, 30, 14, 1, 0, 121, 5, 0}, "%w"},
+ {{ 59, 30, 14, 1, 0, 121, 5, 0}, "%x"},
+ {{ 59, 30, 14, 1, 0, 121, 5, 0}, "%y"},
+ {{ 59, 30, 14, 1, 0, 121, 5, 0}, "%z"},
+ {{ 59, 30, 10, 1, 11, 97, 2, 363}, "%V %G"},
+ {{ 59, 30, 10, 2, 0, 99, 6, 1}, "%V %G"},
+};
+
+#ifndef __unix__
+#define putenv(x) (x)
+/*
+ * Ok, this is by definition undefined behaviour because
+ * we are using the name of a library function. The reallity
+ * is that if you use a static linker then this would
+ * overload the libc getenv and it will work as expected,
+ * but if you use a dynamic linker then the internal
+ * references will be tied to the internal getenv function
+ * and this would not work. For our main use case that is
+ * testing scc libc this is good enough, and with the
+ * fallback to putenv this will work in the systems we are
+ * interested on
+ */
+char *
+getenv(const char *name)
+{
+ if (strcmp(name, "TZ") != 0)
+ return NULL;
+ return "UTC";
+}
+#endif
+
+void
+test1(void)
+{
+ int n;
+ char buf[70];
+ struct test *tp;
+
+ puts("test1:");
+ for (tp = tests; tp < &tests[NELEM(tests)]; ++tp) {
+ printf("\ttest %d\n", (int) (tp - tests));
+ mktime(&tp->tm);
+ n = strftime(buf, sizeof(buf), tp->fmt, &tp->tm);
+ printf("\t\tn=%d:%s\n", n, buf);
+ }
+}
+
+void
+test2(void)
+{
+ struct tm tm;
+ char s1[32], s2[32];
+ size_t n1, n2;
+
+ puts("test2:");
+ tm.tm_sec = 59;
+ tm.tm_min = 30;
+ tm.tm_hour = 10;
+ tm.tm_mday = 1;
+ tm.tm_mon = 0;
+ tm.tm_year = 121;
+ tm.tm_wday = 5;
+ tm.tm_yday = 0;
+
+ n1 = strftime(s1, 32, "%c", &tm);
+ n2 = strftime(s2, 32, "%Ec", &tm);
+
+ assert(n1 == 24 && strcmp(s1, "Fri Jan 1 10:30:59 2021") == 0);
+ assert(n2 == 24 && strcmp(s2, "Fri Jan 1 10:30:59 2021") == 0);
+}
+
+void
+test3(void)
+{
+ struct tm tm;
+ char s1[8], s2[8];
+ size_t n1, n2;
+
+ puts("test3:");
+ tm.tm_sec = 59;
+ tm.tm_min = 30;
+ tm.tm_hour = 10;
+ tm.tm_mday = 1;
+ tm.tm_mon = 0;
+ tm.tm_year = 121;
+ tm.tm_wday = 5;
+ tm.tm_yday = 0;
+
+ n1 = strftime(s1, 8, "%d", &tm);
+ n2 = strftime(s2, 8, "%Od", &tm);
+
+ assert(n1 == 2 && strcmp(s1, "01") == 0);
+ assert(n2 == 2 && strcmp(s2, "01") == 0);
+}
+
+void
+test4(void)
+{
+ struct tm tm;
+ char s1[8], s2[8];
+ size_t n1, n2;
+
+ puts("test4:");
+ tm.tm_sec = 59;
+ tm.tm_min = 30;
+ tm.tm_hour = 10;
+ tm.tm_mday = 1;
+ tm.tm_mon = 0;
+ tm.tm_year = 121;
+ tm.tm_wday = 5;
+ tm.tm_yday = 0;
+
+ n1 = strftime(s1, 8, "%e", &tm);
+ n2 = strftime(s2, 8, "%Oe", &tm);
+
+ assert(n1 == 2 && strcmp(s1, " 1") == 0);
+ assert(n2 == 2 && strcmp(s2, " 1") == 0);
+}
+
+void
+test5(void)
+{
+ struct tm tm;
+ char s1[8], s2[8];
+ size_t n1, n2;
+
+ puts("test5:");
+ tm.tm_sec = 59;
+ tm.tm_min = 30;
+ tm.tm_hour = 14;
+ tm.tm_mday = 1;
+ tm.tm_mon = 0;
+ tm.tm_year = 121;
+ tm.tm_wday = 5;
+ tm.tm_yday = 0;
+
+ n1 = strftime(s1, 8, "%m", &tm);
+ n2 = strftime(s2, 8, "%Om", &tm);
+
+ assert(n1 == 2 && strcmp(s1, "01") == 0);
+ assert(n2 == 2 && strcmp(s2, "01") == 0);
+}
+
+void
+test6(void)
+{
+ struct tm tm;
+ char s1[8], s2[8];
+ size_t n1, n2;
+
+ puts("test6:");
+ tm.tm_sec = 59;
+ tm.tm_min = 30;
+ tm.tm_hour = 14;
+ tm.tm_mday = 1;
+ tm.tm_mon = 0;
+ tm.tm_year = 121;
+ tm.tm_wday = 5;
+ tm.tm_yday = 0;
+
+ n1 = strftime(s1, 8, "%u", &tm);
+ n2 = strftime(s2, 8, "%Ou", &tm);
+
+ assert(n1 == 1 && strcmp(s1, "5") == 0);
+ assert(n2 == 1 && strcmp(s2, "5") == 0);
+}
+
+void
+test7(void)
+{
+ struct tm tm;
+ char s1[8], s2[8];
+ size_t n1, n2;
+
+ puts("test7:");
+ tm.tm_sec = 59;
+ tm.tm_min = 30;
+ tm.tm_hour = 14;
+ tm.tm_mday = 1;
+ tm.tm_mon = 0;
+ tm.tm_year = 121;
+ tm.tm_wday = 5;
+ tm.tm_yday = 0;
+
+ n1 = strftime(s1, 8, "%w", &tm);
+ n2 = strftime(s2, 8, "%Ow", &tm);
+
+ assert(n1 == 1 && strcmp(s1, "5") == 0);
+ assert(n2 == 1 && strcmp(s2, "5") == 0);
+}
+
+void
+test8(void)
+{
+ struct tm tm;
+ char s1[16], s2[16];
+ size_t n1, n2;
+
+ puts("test8:");
+ tm.tm_sec = 59;
+ tm.tm_min = 30;
+ tm.tm_hour = 14;
+ tm.tm_mday = 1;
+ tm.tm_mon = 0;
+ tm.tm_year = 121;
+ tm.tm_wday = 5;
+ tm.tm_yday = 0;
+
+ n1 = strftime(s1, 16, "%x", &tm);
+ n2 = strftime(s2, 16, "%Ex", &tm);
+
+ assert(n1 == 8 && strcmp(s1, "01/01/21") == 0);
+ assert(n2 == 8 && strcmp(s2, "01/01/21") == 0);
+}
+
+void
+test9(void)
+{
+ struct tm tm;
+ char s1[8], s2[8], s3[8];
+ size_t n1, n2, n3;
+
+ puts("test9:");
+ tm.tm_sec = 59;
+ tm.tm_min = 30;
+ tm.tm_hour = 14;
+ tm.tm_mday = 1;
+ tm.tm_mon = 0;
+ tm.tm_year = 121;
+ tm.tm_wday = 5;
+ tm.tm_yday = 0;
+
+ n1 = strftime(s1, 8, "%y", &tm);
+ n2 = strftime(s2, 8, "%Ey", &tm);
+ n3 = strftime(s3, 8, "%Oy", &tm);
+
+ assert(n1 == 2 && strcmp(s1, "21") == 0);
+ assert(n2 == 2 && strcmp(s2, "21") == 0);
+ assert(n3 == 2 && strcmp(s3, "21") == 0);
+}
+
+void
+test10(void)
+{
+ struct tm tm;
+ char s1[8], s2[8];
+ size_t n1, n2;
+
+ puts("test10:");
+ tm.tm_sec = 59;
+ tm.tm_min = 30;
+ tm.tm_hour = 10;
+ tm.tm_mday = 1;
+ tm.tm_mon = 0;
+ tm.tm_year = 121;
+ tm.tm_wday = 5;
+ tm.tm_yday = 0;
+
+ n1 = strftime(s1, 8, "%C", &tm);
+ n2 = strftime(s2, 8, "%EC", &tm);
+
+ assert(n1 == 2 && strcmp(s1, "20") == 0);
+ assert(n2 == 2 && strcmp(s2, "20") == 0);
+}
+
+void
+test11(void)
+{
+ struct tm tm;
+ char s1[8], s2[8];
+ size_t n1, n2;
+
+ puts("test11:");
+ tm.tm_sec = 59;
+ tm.tm_min = 30;
+ tm.tm_hour = 14;
+ tm.tm_mday = 1;
+ tm.tm_mon = 0;
+ tm.tm_year = 121;
+ tm.tm_wday = 5;
+ tm.tm_yday = 0;
+
+ n1 = strftime(s1, 8, "%H", &tm);
+ n2 = strftime(s2, 8, "%OH", &tm);
+
+ assert(n1 == 2 && strcmp(s1, "14") == 0);
+ assert(n2 == 2 && strcmp(s2, "14") == 0);
+}
+
+void
+test12(void)
+{
+ struct tm tm;
+ char s1[8], s2[8];
+ size_t n1, n2;
+
+ puts("test12:");
+ tm.tm_sec = 59;
+ tm.tm_min = 30;
+ tm.tm_hour = 14;
+ tm.tm_mday = 1;
+ tm.tm_mon = 0;
+ tm.tm_year = 121;
+ tm.tm_wday = 5;
+ tm.tm_yday = 0;
+
+ n1 = strftime(&s1[0], 8, "%I", &tm);
+ n2 = strftime(&s2[0], 8, "%OI", &tm);
+
+ assert(n1 == 2 && strcmp(s1, "02") == 0);
+ assert(n2 == 2 && strcmp(s2, "02") == 0);
+}
+
+void
+test13(void)
+{
+ struct tm tm;
+ char s1[8], s2[8];
+ size_t n1, n2;
+
+ puts("test13:");
+ tm.tm_sec = 59;
+ tm.tm_min = 30;
+ tm.tm_hour = 14;
+ tm.tm_mday = 1;
+ tm.tm_mon = 0;
+ tm.tm_year = 121;
+ tm.tm_wday = 5;
+ tm.tm_yday = 0;
+
+ n1 = strftime(s1, 8, "%M", &tm);
+ n2 = strftime(s2, 8, "%OM", &tm);
+
+ assert(n1 == 2 && strcmp(s1, "30") == 0);
+ assert(n2 == 2 && strcmp(s2, "30") == 0);
+}
+
+void
+test14(void)
+{
+ struct tm tm;
+ char s1[8], s2[8];
+ size_t n1, n2;
+
+ puts("test14:");
+ tm.tm_sec = 59;
+ tm.tm_min = 30;
+ tm.tm_hour = 14;
+ tm.tm_mday = 1;
+ tm.tm_mon = 0;
+ tm.tm_year = 121;
+ tm.tm_wday = 5;
+ tm.tm_yday = 0;
+
+ n1 = strftime(s1, 8, "%S", &tm);
+ n2 = strftime(s2, 8, "%OS", &tm);
+
+ assert(n1 == 2 && strcmp(s1, "59") == 0);
+ assert(n2 == 2 && strcmp(s2, "59") == 0);
+}
+
+void
+test15(void)
+{
+ struct tm tm;
+ char s1[8], s2[8];
+ size_t n1, n2;
+
+ puts("test15:");
+ tm.tm_sec = 59;
+ tm.tm_min = 30;
+ tm.tm_hour = 14;
+ tm.tm_mday = 1;
+ tm.tm_mon = 0;
+ tm.tm_year = 121;
+ tm.tm_wday = 5;
+ tm.tm_yday = 0;
+
+ n1 = strftime(s1, 8, "%U", &tm);
+ n2 = strftime(s2, 8, "%OU", &tm);
+
+ assert(n1 == 2 && strcmp(s1, "00") == 0);
+ assert(n2 == 2 && strcmp(s2, "00") == 0);
+}
+
+void
+test16(void)
+{
+ struct tm tm;
+ char s1[8], s2[8];
+ size_t n1, n2;
+
+ puts("test16:");
+ tm.tm_sec = 59;
+ tm.tm_min = 30;
+ tm.tm_hour = 14;
+ tm.tm_mday = 1;
+ tm.tm_mon = 0;
+ tm.tm_year = 121;
+ tm.tm_wday = 5;
+ tm.tm_yday = 0;
+
+ n1 = strftime(s1, 8, "%V", &tm);
+ n2 = strftime(s2, 8, "%OV", &tm);
+
+ assert(n1 == 2 && strcmp(s1, "53") == 0);
+ assert(n2 == 2 && strcmp(s2, "53") == 0);
+}
+
+void
+test17(void)
+{
+ struct tm tm;
+ char s1[8], s2[8];
+ size_t n1, n2;
+
+ puts("test17:");
+ tm.tm_sec = 59;
+ tm.tm_min = 30;
+ tm.tm_hour = 14;
+ tm.tm_mday = 1;
+ tm.tm_mon = 0;
+ tm.tm_year = 121;
+ tm.tm_wday = 5;
+ tm.tm_yday = 0;
+
+ n1 = strftime(s1, 8, "%W", &tm);
+ n2 = strftime(s2, 8, "%OW", &tm);
+
+ assert(n1 == 2 && strcmp(s1, "00") == 0);
+ assert(n2 == 2 && strcmp(s2, "00") == 0);
+
+}
+
+void
+test18(void)
+{
+ struct tm tm;
+ char s1[16], s2[16];
+ size_t n1, n2;
+
+ puts("test18:");
+ tm.tm_sec = 59;
+ tm.tm_min = 30;
+ tm.tm_hour = 14;
+ tm.tm_mday = 1;
+ tm.tm_mon = 0;
+ tm.tm_year = 121;
+ tm.tm_wday = 5;
+ tm.tm_yday = 0;
+
+ n1 = strftime(&s1[0], 16, "%X", &tm);
+ n2 = strftime(&s2[0], 16, "%EX", &tm);
+
+ assert(n1 == 8 && strcmp(s1, "14:30:59") == 0);
+ assert(n2 == 8 && strcmp(s2, "14:30:59") == 0);
+}
+
+void
+test19(void)
+{
+ struct tm tm;
+ char s1[8], s2[8];
+ size_t n1, n2;
+
+ puts("test18:");
+ tm.tm_sec = 59;
+ tm.tm_min = 30;
+ tm.tm_hour = 14;
+ tm.tm_mday = 1;
+ tm.tm_mon = 0;
+ tm.tm_year = 121;
+ tm.tm_wday = 5;
+ tm.tm_yday = 0;
+
+ n1 = strftime(s1, 8, "%Y", &tm);
+ n2 = strftime(s2, 8, "%EY", &tm);
+
+ assert(n1 == 4 && strcmp(s1, "2021") == 0);
+ assert(n2 == 4 && strcmp(s2, "2021") == 0);
+}
+
+int
+main(void)
+{
+ puts("testing");
+ putenv("TZ=UTC");
+ test1();
+ test2();
+ test3();
+ test4();
+ test5();
+ test6();
+ test7();
+ test8();
+ test9();
+ test10();
+ test11();
+ test12();
+ test13();
+ test14();
+ test15();
+ test16();
+ test17();
+ test18();
+ test19();
+ puts("done");
+
+ return 0;
+}
diff --git a/tests/libc/execute/libc-tests.lst b/tests/libc/execute/libc-tests.lst
@@ -70,3 +70,4 @@
0071-clock
0072-mktime
0073-mktime
+0074-strftime
