Update test-typescript-commonjs.mjs

Co-authored-by: Antoine du Hamel <duhamelantoine1995@gmail.com>

Author: mertcanaltin

test/es-module/test-typescript-commonjs.mjs

@@ -69,24 +69,16 @@ test('expect failure of an .mts file with CommonJS syntax', async () => {
   const expectedWarning = `Failed to load the ES module: ${testFilePath}. Make sure to set "type": "module" in the nearest package.json file or use the .mjs extension.`;
 
   try {
-    // First assertion: check that stderr contains a generic pattern for the ES module load failure.
-    // This ensures that at a minimum the error message structure is as expected.
-    assert.match(
-      result.stderr,
-      /Failed to load the ES module:.*test-cts-but-module-syntax\.cts/
-    );
-
-    // Second assertion: verify that stderr includes the complete expected warning message.
-    // We use a try/catch here to improve the error output, providing more context if the assertion fails.
-    // Having two assertions ensures that:
-    //   1. We first confirm the error message follows the expected general format.
-    //   2. We then check that the specific warning (with file path and message details) is present.
     assert.ok(
       result.stderr.includes(expectedWarning),
       `Expected stderr to include: ${expectedWarning}`
     );
   } catch (e) {
     if (e?.code === 'ERR_ASSERTION') {
+      assert.match(
+        result.stderr,
+        /Failed to load the ES module:.*test-cts-but-module-syntax\.cts/
+      );
       e.expected = expectedWarning;
       e.actual = result.stderr;
       e.operator = 'includes';