time-util: add overflow checking to monotonic timestamp specifications

[elogind.git] / src / shared / test-tables.h

diff --git a/src/shared/test-tables.h b/src/shared/test-tables.h
index ac7deda39b3810f6f7837d0d8d9b5d6254b4569d..228e51010481c30087f48ea7651f68b066a19e11 100644 (file)
--- a/src/shared/test-tables.h
+++ b/src/shared/test-tables.h
@@ -26,21 +26,35 @@ typedef int (*reverse_t)(const char*);
 static inline void _test_table(const char *name,
                                lookup_t lookup,
                                reverse_t reverse,
-                               int size) {
-        int i;
+                               int size,
+                               bool sparse) {
+        int i, boring = 0;
 
-        for (i = 0; i < size; i++) {
+        for (i = -1; i < size + 1; i++) {
                 const char* val = lookup(i);
-                int rev = -1;
+                int rev;
 
-                if (val)
+                if (val) {
                         rev = reverse(val);
-
-                printf("%s: %d → %s → %d\n", name, i, val, rev);
-                if (!val || rev != i)
-                        exit(EXIT_FAILURE);
+                        boring = 0;
+                } else {
+                        rev = reverse("--no-such--value----");
+                        boring += i >= 0;
+                }
+
+                if (boring < 1 || i == size)
+                        printf("%s: %d → %s → %d\n", name, i, val, rev);
+                else if (boring == 1)
+                        printf("%*s  ...\n", (int) strlen(name), "");
+
+                assert_se(!(i >= 0 && i < size ?
+                            sparse ? rev != i && rev != -1 : val == NULL || rev != i :
+                            val != NULL || rev != -1));
         }
 }
 
 #define test_table(lower, upper) \
-        _test_table(STRINGIFY(lower), lower##_to_string, lower##_from_string, _##upper##_MAX)
+        _test_table(STRINGIFY(lower), lower##_to_string, lower##_from_string, _##upper##_MAX, false)
+
+#define test_table_sparse(lower, upper) \
+        _test_table(STRINGIFY(lower), lower##_to_string, lower##_from_string, _##upper##_MAX, true)