1 files changed, 59 insertions, 0 deletions
diff --git a/tests/control_flow/test_guard_unless.zc b/tests/control_flow/test_guard_unless.zc
new file mode 100644
index 0000000..d759551
--- /dev/null
+++ b/tests/control_flow/test_guard_unless.zc
@@ -0,0 +1,59 @@
+
+fn check_positive(x: int) -> int {
+    unless x > 0 {
+        return -1;
+    }
+    return x * 2;
+}
+
+fn safe_access(ptr: int*) -> int {
+    guard ptr != NULL else {
+        return -999;
+    }
+    return *ptr;
+}
+
+test "test_guard_unless" {
+    println "Testing guard and unless...";
+    
+    // Unless with true condition (should NOT enter block)
+    var res1 = check_positive(10);
+    if (res1 == 20) {
+        println "  -> unless (pass condition): Passed";
+    } else {
+        println "  -> unless (pass condition): Failed";
+        exit(1);
+    }
+    
+    // Unless with false condition (should enter block)
+    var res2 = check_positive(-5);
+    if (res2 == -1) {
+        println "  -> unless (fail condition): Passed";
+    } else {
+        println "  -> unless (fail condition): Failed";
+        exit(1);
+    }
+    
+    // Guard with valid pointer
+    var val = 42;
+    var p = &val;
+    var res3 = safe_access(p);
+    if (res3 == 42) {
+        println "  -> guard (valid ptr): Passed";
+    } else {
+        println "  -> guard (valid ptr): Failed";
+        exit(1);
+    }
+    
+    // Guard with null pointer
+    var res4 = safe_access(NULL);
+    if (res4 == -999) {
+        println "  -> guard (null ptr): Passed";
+    } else {
+        println "  -> guard (null ptr): Failed";
+        exit(1);
+    }
+    
+    println "All guard/unless tests passed!";
+    
+}