upstream commit

unit tests for KRL bitmap

2 files changed, 143 insertions, 0 deletions

diff --git a/regress/unittests/bitmap/Makefile b/regress/unittests/bitmap/Makefile
new file mode 100644
index 000000000..b704d22d6
--- /dev/null
+++ b/regress/unittests/bitmap/Makefile
@@ -0,0 +1,12 @@
+#       $OpenBSD: Makefile,v 1.1 2015/01/15 07:36:28 djm Exp $
+
+TEST_ENV=      "MALLOC_OPTIONS=AFGJPRX"
+
+PROG=test_bitmap
+SRCS=tests.c
+REGRESS_TARGETS=run-regress-${PROG}
+
+run-regress-${PROG}: ${PROG}
+        env ${TEST_ENV} ./${PROG}
+
+.include <bsd.regress.mk>
diff --git a/regress/unittests/bitmap/tests.c b/regress/unittests/bitmap/tests.c
new file mode 100644
index 000000000..6789661ce
--- /dev/null
+++ b/regress/unittests/bitmap/tests.c
@@ -0,0 +1,131 @@
+/*      $OpenBSD: tests.c,v 1.1 2015/01/15 07:36:28 djm Exp $ */
+/*
+ * Regress test for bitmap.h bitmap API
+ *
+ * Placed in the public domain
+ */
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <openssl/bn.h>
+
+#include "test_helper.h"
+
+#include "bitmap.h"
+
+#define NTESTS 131
+
+void
+tests(void)
+{
+        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();
+}
+