[dnssec] tests for NSEC bitmap construction

dnssec/tests/Makefile.am

@@ -9,8 +9,9 @@ LDADD = \
 check_PROGRAMS = \
 	binary		\
 	key		\
-	key_pubkey	\
 	key_keytag	\
+	key_pubkey	\
+	nsec_bitmap	\
 	sign		\
 	sign_der	\
 	wire

dnssec/tests/nsec_bitmap.c

+#include <assert.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <tap/basic.h>
+
+#include "nsec/bitmap.h"
+
+int main(void)
+{
+	plan_lazy();
+
+	dnssec_nsec_bitmap_t *bitmap = dnssec_nsec_bitmap_new();
+	ok(bitmap != NULL, "allocate bitmap");
+	if (!bitmap) {
+		return 1;
+	}
+
+	dnssec_nsec_bitmap_add(bitmap, 1);	// A
+	dnssec_nsec_bitmap_add(bitmap, 2);	// NS
+	dnssec_nsec_bitmap_add(bitmap, 6);	// SOA
+	dnssec_nsec_bitmap_add(bitmap, 15);	// MX
+	dnssec_nsec_bitmap_add(bitmap, 16);	// TXT
+	dnssec_nsec_bitmap_add(bitmap, 28);	// AAAA
+	dnssec_nsec_bitmap_add(bitmap, 44);	// SSHFP
+	dnssec_nsec_bitmap_add(bitmap, 46);	// RRSIG
+	dnssec_nsec_bitmap_add(bitmap, 47);	// NSEC
+	dnssec_nsec_bitmap_add(bitmap, 48);	// DNSKEY
+
+	size_t size = dnssec_nsec_bitmap_size(bitmap);
+	ok(size == 9, "valid bitmap size");
+	if (size != 9) {
+		dnssec_nsec_bitmap_free(bitmap);
+		return 1;
+	}
+
+	const uint8_t expected[9] = {
+		0x00, 0x07, 0x62, 0x01, 0x80, 0x08, 0x00, 0x0b, 0x80
+	};
+	uint8_t encoded[9] = { 0 };
+	dnssec_nsec_bitmap_write(bitmap, encoded);
+
+	ok(memcmp(encoded, expected, 9) == 0, "valid bitmap");
+
+	dnssec_nsec_bitmap_clear(bitmap);
+	ok(dnssec_nsec_bitmap_size(bitmap) == 0, "bitmap clear");
+
+	dnssec_nsec_bitmap_free(bitmap);
+
+	return 0;
+}