diff --git a/tests/null_coalescing.aer b/tests/null_coalescing.aer
new file mode 100644
index 0000000..79e291a
--- /dev/null
+++ b/tests/null_coalescing.aer
@@ -0,0 +1,15 @@
+class Program {
+
+	public void main() {
+		var_dump(0 ?? 0 ?? 6);
+		var_dump(0 ?? (0 ?? 6));
+		var_dump((0 ?? 0) ?? 6);
+		var_dump(0 ?? 5 ?? 6);
+		var_dump(0 ?? (5 ?? 6));
+		var_dump((0 ?? 5) ?? 6);
+		var_dump(4 ?? 5 ?? 6);
+		var_dump(4 ?? (5 ?? 6));
+		var_dump((4 ?? 5) ?? 6);
+	}
+
+}
diff --git a/tests/null_coalescing.exp b/tests/null_coalescing.exp
new file mode 100644
index 0000000..e8e7e79
--- /dev/null
+++ b/tests/null_coalescing.exp
@@ -0,0 +1,9 @@
+int(6)
+int(6)
+int(6)
+int(5)
+int(5)
+int(5)
+int(4)
+int(4)
+int(4)
\ No newline at end of file