fixup! fixup! fixup! fixup! fixup! fixup! fixup! test: fix test-fs-ut…

…imes on non-Y2K38 file systems

test/parallel/test-fs-utimes-y2K38.js

@@ -7,17 +7,27 @@ const fs = require('fs');
 
 tmpdir.refresh();
 
-// Check for Y2K38 support. For Windows, assume it's there. Windows doesn't have
-// `touch`.
-if (!common.isWindows) {
+// Check for Y2K38 support. For Windows and AIX, assume it's there. Windows
+// doesn't have `touch` and `date -r` which are used in the check for support.
+// AIX lacks `date -r`.
+if (!common.isWindows && !common.isAIX) {
   const testFilePath = `${tmpdir.path}/y2k38-test`;
   const testFileDate = '204001020304';
   const { spawnSync } = require('child_process');
-  const { status } = spawnSync('touch',
-                               ['-t', testFileDate, testFilePath],
+  const touchResult = spawnSync('touch',
+                                ['-t', testFileDate, testFilePath],
+                                { encoding: 'utf8' });
+  if (touchResult.status !== 0) {
+    common.skip('File system appears to lack Y2K38 support (touch failed)');
+  }
+
+  const dateResult = spawnSync('date',
+                               ['-r', testFilePath, '+%Y%m%d%H%M'],
                                { encoding: 'utf8' });
-  if (status !== 0) {
-    common.skip('File system appears to lack Y2K38 support');
+
+  assert.strictEqual(dateResult.status, 0);
+  if (dateResult.stdout.trim() !== testFileDate) {
+    common.skip('File system appears to lack Y2k38 support (date failed)');
   }
 }