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-rw-r--r--src/shared/test-tables.h44
1 files changed, 44 insertions, 0 deletions
diff --git a/src/shared/test-tables.h b/src/shared/test-tables.h
new file mode 100644
index 0000000..4eeda3b
--- /dev/null
+++ b/src/shared/test-tables.h
@@ -0,0 +1,44 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+typedef const char* (*lookup_t)(int);
+typedef int (*reverse_t)(const char*);
+
+static inline void _test_table(const char *name,
+ lookup_t lookup,
+ reverse_t reverse,
+ int size,
+ bool sparse) {
+ int i, boring = 0;
+
+ for (i = -1; i < size + 1; i++) {
+ const char* val = lookup(i);
+ int rev;
+
+ if (val) {
+ rev = reverse(val);
+ 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, false)
+
+#define test_table_sparse(lower, upper) \
+ _test_table(STRINGIFY(lower), lower##_to_string, lower##_from_string, _##upper##_MAX, true)