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test/parallel/test-filehandle-close.js

@@ -0,0 +1,17 @@
+'use strict';
+const common = require('../common');
+const assert = require('assert');
+const fs = require('fs');
+
+// Test that using FileHandle.close to close an already-closed fd fails
+// with EBADF.
+
+(async function() {
+  const fh = await fs.promises.open(__filename);
+  fs.closeSync(fh.fd);
+
+  await assert.rejects(() => fh.close(), {
+    code: 'EBADF',
+    syscall: 'close'
+  });
+})().then(common.mustCall());