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-rw-r--r--regress/unittests/bitmap/tests.c138
1 files changed, 138 insertions, 0 deletions
diff --git a/regress/unittests/bitmap/tests.c b/regress/unittests/bitmap/tests.c
new file mode 100644
index 0000000..576b863
--- /dev/null
+++ b/regress/unittests/bitmap/tests.c
@@ -0,0 +1,138 @@
+/* $OpenBSD: tests.c,v 1.2 2021/12/14 21:25:27 deraadt Exp $ */
+/*
+ * Regress test for bitmap.h bitmap API
+ *
+ * Placed in the public domain
+ */
+
+#include "includes.h"
+
+#include <sys/types.h>
+#include <stdio.h>
+#ifdef HAVE_STDINT_H
+#include <stdint.h>
+#endif
+#include <stdlib.h>
+#include <string.h>
+
+#ifdef WITH_OPENSSL
+#include <openssl/bn.h>
+#endif
+
+#include "../test_helper/test_helper.h"
+
+#include "bitmap.h"
+
+#define NTESTS 131
+
+void
+tests(void)
+{
+#ifdef WITH_OPENSSL
+ struct bitmap *b;
+ BIGNUM *bn;
+ size_t len;
+ int i, j, k, n;
+ u_char bbuf[1024], bnbuf[1024];
+ int r;
+
+ TEST_START("bitmap_new");
+ b = bitmap_new();
+ ASSERT_PTR_NE(b, NULL);
+ bn = BN_new();
+ ASSERT_PTR_NE(bn, NULL);
+ TEST_DONE();
+
+ TEST_START("bitmap_set_bit / bitmap_test_bit");
+ for (i = -1; i < NTESTS; i++) {
+ for (j = -1; j < NTESTS; j++) {
+ for (k = -1; k < NTESTS; k++) {
+ bitmap_zero(b);
+ BN_clear(bn);
+
+ test_subtest_info("set %d/%d/%d", i, j, k);
+ /* Set bits */
+ if (i >= 0) {
+ ASSERT_INT_EQ(bitmap_set_bit(b, i), 0);
+ ASSERT_INT_EQ(BN_set_bit(bn, i), 1);
+ }
+ if (j >= 0) {
+ ASSERT_INT_EQ(bitmap_set_bit(b, j), 0);
+ ASSERT_INT_EQ(BN_set_bit(bn, j), 1);
+ }
+ if (k >= 0) {
+ ASSERT_INT_EQ(bitmap_set_bit(b, k), 0);
+ ASSERT_INT_EQ(BN_set_bit(bn, k), 1);
+ }
+
+ /* Check perfect match between bitmap and bn */
+ test_subtest_info("match %d/%d/%d", i, j, k);
+ for (n = 0; n < NTESTS; n++) {
+ ASSERT_INT_EQ(BN_is_bit_set(bn, n),
+ bitmap_test_bit(b, n));
+ }
+
+ /* Test length calculations */
+ test_subtest_info("length %d/%d/%d", i, j, k);
+ ASSERT_INT_EQ(BN_num_bits(bn),
+ (int)bitmap_nbits(b));
+ ASSERT_INT_EQ(BN_num_bytes(bn),
+ (int)bitmap_nbytes(b));
+
+ /* Test serialisation */
+ test_subtest_info("serialise %d/%d/%d",
+ i, j, k);
+ len = bitmap_nbytes(b);
+ memset(bbuf, 0xfc, sizeof(bbuf));
+ ASSERT_INT_EQ(bitmap_to_string(b, bbuf,
+ sizeof(bbuf)), 0);
+ for (n = len; n < (int)sizeof(bbuf); n++)
+ ASSERT_U8_EQ(bbuf[n], 0xfc);
+ r = BN_bn2bin(bn, bnbuf);
+ ASSERT_INT_GE(r, 0);
+ ASSERT_INT_EQ(r, (int)len);
+ ASSERT_MEM_EQ(bbuf, bnbuf, len);
+
+ /* Test deserialisation */
+ test_subtest_info("deserialise %d/%d/%d",
+ i, j, k);
+ bitmap_zero(b);
+ ASSERT_INT_EQ(bitmap_from_string(b, bnbuf,
+ len), 0);
+ for (n = 0; n < NTESTS; n++) {
+ ASSERT_INT_EQ(BN_is_bit_set(bn, n),
+ bitmap_test_bit(b, n));
+ }
+
+ /* Test clearing bits */
+ test_subtest_info("clear %d/%d/%d",
+ i, j, k);
+ for (n = 0; n < NTESTS; n++) {
+ ASSERT_INT_EQ(bitmap_set_bit(b, n), 0);
+ ASSERT_INT_EQ(BN_set_bit(bn, n), 1);
+ }
+ if (i >= 0) {
+ bitmap_clear_bit(b, i);
+ BN_clear_bit(bn, i);
+ }
+ if (j >= 0) {
+ bitmap_clear_bit(b, j);
+ BN_clear_bit(bn, j);
+ }
+ if (k >= 0) {
+ bitmap_clear_bit(b, k);
+ BN_clear_bit(bn, k);
+ }
+ for (n = 0; n < NTESTS; n++) {
+ ASSERT_INT_EQ(BN_is_bit_set(bn, n),
+ bitmap_test_bit(b, n));
+ }
+ }
+ }
+ }
+ bitmap_free(b);
+ BN_free(bn);
+ TEST_DONE();
+#endif
+}
+