add test case to cover already-solved bug

closes #2401
ziglang · Jan 5, 2020 · c30106c · c30106c
1 parent 6ff70d3
commit c30106c
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/test/stage1/behavior/union.zig b/test/stage1/behavior/union.zig
@@ -611,3 +611,12 @@ test "function call result coerces from tagged union to the tag" {
     S.doTheTest();
     comptime S.doTheTest();
 }
+
+test "0-sized extern union definition" {
+    const U = extern union {
+        a: void,
+        const f = 1;
+    };
+
+    expect(U.f == 1);
+}