stream: migrate _stream_readable use error codes

PR-URL: https://github.com/nodejs/node/pull/15042
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>

1 files changed, 10 insertions, 2 deletions

diff --git a/test/parallel/test-stream-unshift-read-race.js b/test/parallel/test-stream-unshift-read-race.js
index e04de5392a..a67147506e 100644
--- a/test/parallel/test-stream-unshift-read-race.js
+++ b/test/parallel/test-stream-unshift-read-race.js
@@ -70,7 +70,11 @@ r._read = function(n) {
 function pushError() {
   assert.throws(function() {
     r.push(Buffer.allocUnsafe(1));
-  }, /^Error: stream\.push\(\) after EOF$/);
+  }, common.expectsError({
+    code: 'ERR_STREAM_PUSH_AFTER_EOF',
+    type: Error,
+    message: 'stream.push() after EOF'
+  }));
 }
 
 
@@ -84,7 +88,11 @@ w._write = function(chunk, encoding, cb) {
 r.on('end', common.mustCall(function() {
   assert.throws(function() {
     r.unshift(Buffer.allocUnsafe(1));
-  }, /^Error: stream\.unshift\(\) after end event$/);
+  }, common.expectsError({
+    code: 'ERR_STREAM_UNSHIFT_AFTER_END_EVENT',
+    type: Error,
+    message: 'stream.unshift() after end event'
+  }));
   w.end();
 }));