2 files changed, 48 insertions, 0 deletions
diff --git a/tests/interop/test_c_import.zc b/tests/interop/test_c_import.zc
new file mode 100644
index 0000000..ed95bc1
--- /dev/null
+++ b/tests/interop/test_c_import.zc
@@ -0,0 +1,26 @@
+
+import "math.h" as m;
+
+test "test_c_import" {
+    var x = m::sin(0.0);
+    
+    if x == 0.0 {
+        println "Success: m::sin(0.0) == 0.0";
+    } else {
+        println "Failure: Unexpected result";
+        exit(1);
+    }
+    }
+}
+
+extern fn abs(x: int) -> int;
+
+test "test_interop_abs" {
+    var x = -10;
+    var y = abs(x);
+    if (y == 10) println "Abs works";
+    else {
+        println "Abs failed";
+        exit(1);
+    }
+}
diff --git a/tests/interop/test_c_macros.zc b/tests/interop/test_c_macros.zc
new file mode 100644
index 0000000..0b1fc64
--- /dev/null
+++ b/tests/interop/test_c_macros.zc
@@ -0,0 +1,22 @@
+
+#define MAX(a, b) ((a) > (b) ? (a) : (b))
+#define DEBUG_MODE 1
+
+test "test_c_macros" {
+    var x = MAX(10, 20);
+    
+    if x == 20 {
+        println "MAX macro worked";
+    } else {
+        println "MAX macro failed";
+        exit(1);
+    }
+
+    #ifdef DEBUG_MODE
+        println "Debug mode active";
+    #endif
+
+    #ifndef INVALID_MACRO
+        println "Conditionals working";
+    #endif
+}