unit/bacnet/bits test (#391)

Co-authored-by: Gregory Shue <gregory.shue@legrand.com>
2023-02-02 11:45:47 -08:00
parent eb36033fd8
commit 338d445b99
6 changed files with 258 additions and 0 deletions
@@ -0,0 +1,183 @@
+/*
+ * Copyright (c) 2023 Legrand North America, LLC.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+
+#include <zephyr/ztest.h>
+
+#undef BIT
+#undef _BV
+#undef BIT_SET
+#undef BIT_CLEAR
+#undef BIT_FLIP
+#undef BIT_CHECK
+#undef BITMASK_SET
+#undef BITMASK_CLEAR
+#undef BITMASK_FLIP
+#undef BITMASK_CHECK
+
+#include "bacnet/bits.h"
+
+
+/* NOTE: These tests must be compatible with C90, so they do not
+ * verify support for ULL.
+ */
+
+static void test_BIT(void)
+{
+    unsigned int bitpos = sizeof(unsigned int) * 8;
+
+    do {
+	bitpos -= 1;
+        zassert_true(BIT(bitpos) == (1U << bitpos), NULL);
+    } while (bitpos > 0);
+}
+
+static void test__BV(void)
+{
+    unsigned int bitpos = sizeof(unsigned int) * 8;
+
+    do {
+	bitpos -= 1;
+        zassert_true(BIT(bitpos) == (1U << bitpos), NULL);
+    } while (bitpos > 0);
+}
+
+static void test_BIT_SET(void)
+{
+    unsigned int bitpos = sizeof(unsigned int) * 8;
+
+    do {
+        unsigned int a = 0U;
+	bitpos -= 1;
+	BIT_SET(a, bitpos);
+        zassert_true(a == (1U << bitpos), NULL);
+    } while (bitpos > 0);
+}
+
+static void test_BIT_CLEAR(void)
+{
+    unsigned int bitpos = sizeof(unsigned int) * 8;
+
+    do {
+        unsigned int a = ~0U;
+	bitpos -= 1;
+	BIT_CLEAR(a, bitpos);
+        zassert_true(~(a) == (1U << bitpos), NULL);
+    } while (bitpos > 0);
+}
+
+static void test_BIT_FLIP(void)
+{
+    unsigned int bitpos = sizeof(unsigned int) * 8;
+
+    do {
+        unsigned int a = ~0U;
+	bitpos -= 1;
+	BIT_FLIP(a, bitpos);
+        zassert_true(a == ~(1U << bitpos), NULL);
+	BIT_FLIP(a, bitpos);
+        zassert_true(a == ~0U, NULL);
+
+	a = 0U;
+	BIT_FLIP(a, bitpos);
+        zassert_true(a == (1U << bitpos), NULL);
+	BIT_FLIP(a, bitpos);
+        zassert_true(a == 0U, NULL);
+	
+    } while (bitpos > 0);
+}
+
+static void test_BIT_CHECK(void)
+{
+    unsigned int bitpos = sizeof(unsigned int) * 8;
+
+    do {
+        unsigned int a = ~0U;
+	bitpos -= 1;
+	zassert_true(BIT_CHECK(a, bitpos), NULL);
+
+	a = 0U;
+	zassert_false(BIT_CHECK(a, bitpos), NULL);
+	
+    } while (bitpos > 0);
+}
+
+static void test_BITMASK_SET(void)
+{
+    unsigned int bitpos = sizeof(unsigned int) * 8;
+
+    do {
+        unsigned int a = 0U;
+	bitpos -= 1;
+	BITMASK_SET(a, (1U << bitpos));
+        zassert_true(a == (1U << bitpos), NULL);
+    } while (bitpos > 0);
+}
+
+static void test_BITMASK_CLEAR(void)
+{
+    unsigned int bitpos = sizeof(unsigned int) * 8;
+
+    do {
+        unsigned int a = ~0U;
+	bitpos -= 1;
+	BITMASK_CLEAR(a, (1U << bitpos));
+        zassert_true(~(a) == (1U << bitpos), NULL);
+    } while (bitpos > 0);
+}
+
+static void test_BITMASK_FLIP(void)
+{
+    unsigned int bitpos = sizeof(unsigned int) * 8;
+
+    do {
+        unsigned int a = ~0U;
+	bitpos -= 1;
+	BITMASK_FLIP(a, (1U << bitpos));
+        zassert_true(a == ~(1U << bitpos), NULL);
+	BITMASK_FLIP(a, (1U << bitpos));
+        zassert_true(a == ~0U, NULL);
+
+	a = 0U;
+	BITMASK_FLIP(a, (1U << bitpos));
+        zassert_true(a == (1U << bitpos), NULL);
+	BITMASK_FLIP(a, (1U << bitpos));
+        zassert_true(a == 0U, NULL);
+	
+    } while (bitpos > 0);
+}
+
+static void test_BITMASK_CHECK(void)
+{
+    unsigned int bitpos = sizeof(unsigned int) * 8;
+
+    do {
+        unsigned int a = ~0U;
+	bitpos -= 1;
+	zassert_true(BITMASK_CHECK(a, (1U << bitpos)), NULL);
+
+	a = 0U;
+	zassert_false(BITMASK_CHECK(a, (1U << bitpos)), NULL);
+	
+    } while (bitpos > 0);
+}
+
+void test_main(void)
+{
+    ztest_test_suite(bacnet_bits,
+     ztest_unit_test(test_BIT),
+     ztest_unit_test(test__BV),
+     ztest_unit_test(test_BIT_SET),
+     ztest_unit_test(test_BIT_CLEAR),
+     ztest_unit_test(test_BIT_FLIP),
+     ztest_unit_test(test_BIT_CHECK),
+     ztest_unit_test(test_BITMASK_SET),
+     ztest_unit_test(test_BITMASK_CLEAR),
+     ztest_unit_test(test_BITMASK_FLIP),
+     ztest_unit_test(test_BITMASK_CHECK)
+     );
+    ztest_run_test_suite(bacnet_bits);
+}