Test support for time_t comparisons.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Andy Polyakov <appro@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4797)

test/test_test.c

@@ -191,6 +191,29 @@ err:
     return 0;
 }
 
+static int test_time_t(void)
+{
+    if (!TEST(1, TEST_time_t_eq((time_t)10, (time_t)10))
+        | !TEST(0, TEST_time_t_eq((time_t)10, (time_t)12))
+        | !TEST(1, TEST_time_t_ne((time_t)10, (time_t)12))
+        | !TEST(0, TEST_time_t_ne((time_t)24, (time_t)24))
+        | !TEST(1, TEST_time_t_lt((time_t)30, (time_t)88))
+        | !TEST(0, TEST_time_t_lt((time_t)88, (time_t)30))
+        | !TEST(1, TEST_time_t_le((time_t)30, (time_t)88))
+        | !TEST(1, TEST_time_t_le((time_t)33, (time_t)33))
+        | !TEST(0, TEST_time_t_le((time_t)88, (time_t)30))
+        | !TEST(1, TEST_time_t_gt((time_t)52, (time_t)33))
+        | !TEST(0, TEST_time_t_gt((time_t)33, (time_t)52))
+        | !TEST(1, TEST_time_t_ge((time_t)52, (time_t)33))
+        | !TEST(1, TEST_time_t_ge((time_t)38, (time_t)38))
+        | !TEST(0, TEST_time_t_ge((time_t)33, (time_t)52)))
+        goto err;
+    return 1;
+
+err:
+    return 0;
+}
+
 static int test_pointer(void)
 {
     int x = 0;
@@ -518,6 +541,7 @@ int setup_tests(void)
     ADD_TEST(test_long);
     ADD_TEST(test_ulong);
     ADD_TEST(test_size_t);
+    ADD_TEST(test_time_t);
     ADD_TEST(test_pointer);
     ADD_TEST(test_bool);
     ADD_TEST(test_string);

test/testutil.h

@@ -186,6 +186,7 @@ DECLARE_COMPARISONS(char, char)
 DECLARE_COMPARISONS(unsigned char, uchar)
 DECLARE_COMPARISONS(long, long)
 DECLARE_COMPARISONS(unsigned long, ulong)
+DECLARE_COMPARISONS(time_t, time_t)
 /*
  * Because this comparison uses a printf format specifier that's not
  * universally known (yet), we provide an option to not have it declared.
@@ -336,6 +337,13 @@ void test_perror(const char *s);
 # define TEST_size_t_gt(a, b) test_size_t_gt(__FILE__, __LINE__, #a, #b, a, b)
 # define TEST_size_t_ge(a, b) test_size_t_ge(__FILE__, __LINE__, #a, #b, a, b)
 
+# define TEST_time_t_eq(a, b) test_time_t_eq(__FILE__, __LINE__, #a, #b, a, b)
+# define TEST_time_t_ne(a, b) test_time_t_ne(__FILE__, __LINE__, #a, #b, a, b)
+# define TEST_time_t_lt(a, b) test_time_t_lt(__FILE__, __LINE__, #a, #b, a, b)
+# define TEST_time_t_le(a, b) test_time_t_le(__FILE__, __LINE__, #a, #b, a, b)
+# define TEST_time_t_gt(a, b) test_time_t_gt(__FILE__, __LINE__, #a, #b, a, b)
+# define TEST_time_t_ge(a, b) test_time_t_ge(__FILE__, __LINE__, #a, #b, a, b)
+
 # define TEST_ptr_eq(a, b)    test_ptr_eq(__FILE__, __LINE__, #a, #b, a, b)
 # define TEST_ptr_ne(a, b)    test_ptr_ne(__FILE__, __LINE__, #a, #b, a, b)
 # define TEST_ptr(a)          test_ptr(__FILE__, __LINE__, #a, a)

test/testutil/tests.c

@@ -15,6 +15,7 @@
 #include <string.h>
 #include <ctype.h>
 #include "internal/nelem.h"
+#include <openssl/asn1.h>
 
 /*
  * Output a failed test first line.
@@ -416,3 +417,32 @@ int test_BN_abs_eq_word(const char *file, int line, const char *bns,
     BN_free(aa);
     return 0;
 }
+
+static const char *print_time(const ASN1_TIME *t)
+{
+    return t == NULL ? "<null>" : (char *)ASN1_STRING_get0_data(t);
+}
+
+#define DEFINE_TIME_T_COMPARISON(opname, op)                            \
+    int test_time_t_ ## opname(const char *file, int line,              \
+                               const char *s1, const char *s2,          \
+                               const time_t t1, const time_t t2)        \
+    {                                                                   \
+        ASN1_TIME *at1 = ASN1_TIME_set(NULL, t1);                       \
+        ASN1_TIME *at2 = ASN1_TIME_set(NULL, t2);                       \
+        int r = at1 != NULL && at2 != NULL                              \
+                && ASN1_TIME_compare(at1, at2) op 0;                    \
+        if (!r)                                                         \
+            test_fail_message(NULL, file, line, "time_t", s1, s2, #op,  \
+                              "[%s] compared to [%s]",                  \
+                              print_time(at1), print_time(at2));        \
+        ASN1_STRING_free(at1);                                          \
+        ASN1_STRING_free(at2);                                          \
+        return r;                                                       \
+    }
+DEFINE_TIME_T_COMPARISON(eq, ==)
+DEFINE_TIME_T_COMPARISON(ne, !=)
+DEFINE_TIME_T_COMPARISON(gt, >)
+DEFINE_TIME_T_COMPARISON(ge, >=)
+DEFINE_TIME_T_COMPARISON(lt, <)
+DEFINE_TIME_T_COMPARISON(le, <=)