1 files changed, 14 insertions, 11 deletions
diff --git a/test/parallel/test-tls-options-boolean-check.js b/test/parallel/test-tls-options-boolean-check.js
index 242df1140e..4caf621559 100644
--- a/test/parallel/test-tls-options-boolean-check.js
+++ b/test/parallel/test-tls-options-boolean-check.js
@@ -74,20 +74,21 @@ const caArrDataView = toDataView(caCert);
   [true, certDataView],
   [true, false],
   [true, false],
-  [{ pem: keyBuff }, false, 'pem'],
+  [{ pem: keyBuff }, false],
   [[keyBuff, true], [certBuff, certBuff2], 1],
   [[true, keyStr2], [certStr, certStr2], 0],
   [[true, false], [certBuff, certBuff2], 0],
   [true, [certBuff, certBuff2]]
 ].forEach(([key, cert, index]) => {
-  const type = typeof (index === undefined ? key : key[index]);
+  const val = index === undefined ? key : key[index];
   common.expectsError(() => {
     tls.createServer({ key, cert });
   }, {
     code: 'ERR_INVALID_ARG_TYPE',
     type: TypeError,
-    message: 'The "options.key" property must be one of type string, Buffer, ' +
-             `TypedArray, or DataView. Received type ${type}`
+    message: 'The "options.key" property must be of type string or an ' +
+             'instance of Buffer, TypedArray, or DataView.' +
+             common.invalidArgTypeHelper(val)
   });
 });
 
@@ -98,21 +99,22 @@ const caArrDataView = toDataView(caCert);
   [keyDataView, true],
   [true, true],
   [false, true],
-  [false, { pem: keyBuff }, 'pem'],
+  [false, { pem: keyBuff }],
   [false, 1],
   [[keyBuff, keyBuff2], [true, certBuff2], 0],
   [[keyStr, keyStr2], [certStr, true], 1],
   [[keyStr, keyStr2], [true, false], 0],
   [[keyStr, keyStr2], true]
 ].forEach(([key, cert, index]) => {
-  const type = typeof (index === undefined ? cert : cert[index]);
+  const val = index === undefined ? cert : cert[index];
   common.expectsError(() => {
     tls.createServer({ key, cert });
   }, {
     code: 'ERR_INVALID_ARG_TYPE',
     type: TypeError,
-    message: 'The "options.cert" property must be one of type string, Buffer,' +
-             ` TypedArray, or DataView. Received type ${type}`
+    message: 'The "options.cert" property must be of type string or an ' +
+             'instance of Buffer, TypedArray, or DataView.' +
+             common.invalidArgTypeHelper(val)
   });
 });
 
@@ -139,14 +141,15 @@ const caArrDataView = toDataView(caCert);
   [keyBuff, certBuff, true],
   [keyBuff, certBuff, [caCert, true], 1]
 ].forEach(([key, cert, ca, index]) => {
-  const type = typeof (index === undefined ? ca : ca[index]);
+  const val = index === undefined ? ca : ca[index];
   common.expectsError(() => {
     tls.createServer({ key, cert, ca });
   }, {
     code: 'ERR_INVALID_ARG_TYPE',
     type: TypeError,
-    message: 'The "options.ca" property must be one of type string, Buffer, ' +
-             `TypedArray, or DataView. Received type ${type}`
+    message: 'The "options.ca" property must be of type string or an instance' +
+             ' of Buffer, TypedArray, or DataView.' +
+             common.invalidArgTypeHelper(val)
   });
 });