test(es/testing): Ensure that test_inline! is working properly (#8590)

**Related issue:**

 - Closes #8586

Author: kdy1

crates/swc_ecma_transforms_testing/src/lib.rs

@@ -478,19 +478,25 @@ test_inline!(
     ignore,
     Syntax::default(),
     |_| noop(),
-    noop_ignored,
+    test_inline_ignored,
     "class Foo {}",
     "class Foo {}"
 );
 
 test_inline!(
     Syntax::default(),
     |_| noop(),
-    noop_test,
+    test_inline_pass,
     "class Foo {}",
     "class Foo {}"
 );
 
+#[test]
+#[should_panic]
+fn test_inline_should_fail() {
+    test_inline_input_output(Default::default(), |_| noop(), "class Foo {}", "");
+}
+
 #[macro_export]
 macro_rules! test {
     (ignore, $syntax:expr, $tr:expr, $test_name:ident, $input:expr) => {