1 files changed, 23 insertions, 0 deletions
diff --git a/tests/test_unions.sh b/tests/test_unions.sh
new file mode 100644
index 0000000..b588792
--- /dev/null
+++ b/tests/test_unions.sh
@@ -0,0 +1,23 @@
+cat <<'EOF' > expected
+8
+42
+42
+EOF
+
+test_diff <<'EOF'
+int printf();
+
+union U {
+    int i;
+    long l;
+};
+
+int main() {
+    union U u;
+    printf("%zu\n", sizeof(u));
+    u.l = 42;
+    printf("%d\n", u.i);
+    printf("%ld\n", u.l);
+}
+EOF
+