test: fix flaky test-debug-prompt

Be sure to send `.exit` only once to avoid spurious EPIPE and possibly other errors. Fixes: #21724 PR-URL: #21826 Reviewed-By: Anna Henningsen <[email protected]> Reviewed-By: Anatoli Papirovski <[email protected]> Reviewed-By: Luigi Pinca <[email protected]> Reviewed-By: Minwoo Jung <[email protected]> Reviewed-By: Jon Moss <[email protected]>
nodejs · Jul 16, 2018 · 4e60ce8 · 4e60ce8
1 parent a2edb59
commit 4e60ce8
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/test/sequential/test-debug-prompt.js b/test/sequential/test-debug-prompt.js
@@ -7,9 +7,12 @@ const spawn = require('child_process').spawn;
 const proc = spawn(process.execPath, ['inspect', 'foo']);
 proc.stdout.setEncoding('utf8');
 
+let needToSendExit = true;
 let output = '';
 proc.stdout.on('data', (data) => {
   output += data;
-  if (output.includes('debug> '))
+  if (output.includes('debug> ') && needToSendExit) {
     proc.stdin.write('.exit\n');
+    needToSendExit = false;
+  }
 });