refactor: rewrite some tests in C

1 files changed, 38 insertions, 0 deletions

diff --git a/tests/bitwise_operators.c b/tests/bitwise_operators.c
new file mode 100644
index 0000000..e8a5619
--- /dev/null
+++ b/tests/bitwise_operators.c
@@ -0,0 +1,38 @@
+#include <helpers.h>
+
+int main() {
+    ASSERT_EQ(123, 0 | 123);
+    ASSERT_EQ(460, 12 | 456);
+
+    ASSERT_EQ(8, 1 << 3);
+    ASSERT_EQ(336, 21 << 4);
+    ASSERT_EQ(13, 111 >> 3);
+    ASSERT_EQ(0, 15 >> 14);
+
+    int a = 5;
+    int b = 3;
+    ASSERT_EQ(1, a & b);
+    ASSERT_EQ(7, a | b);
+    ASSERT_EQ(6, a ^ b);
+    ASSERT_EQ(4, 2 + 3 & 4);
+
+    int c = 1 + 2 & 3;
+    int d = 4 & 5 ^ 6;
+    int e = 1 ^ 2 | 3;
+    int f = 0 | 1 & 2;
+    ASSERT_EQ(3, c);
+    ASSERT_EQ(2, d);
+    ASSERT_EQ(3, e);
+    ASSERT_EQ(0, f);
+
+    ASSERT_EQ(-1, ~0);
+    ASSERT_EQ(-2, ~1);
+    ASSERT_EQ(-6, ~5);
+    ASSERT_EQ(0, ~(-1));
+    ASSERT_EQ(5, ~(-6));
+
+    int x = 10;
+    ASSERT_EQ(-11, ~x);
+    ASSERT_EQ(-1, ~(x & 0));
+    ASSERT_EQ(-16, ~(x | 5));
+}