7 files changed, 16 insertions, 4 deletions
diff --git a/src/node/test/call_test.js b/src/node/test/call_test.js
index c1a7e95fa0..7b2b36ae37 100644
--- a/src/node/test/call_test.js
+++ b/src/node/test/call_test.js
@@ -31,6 +31,8 @@
  *
  */
 
+'use strict';
+
 var assert = require('assert');
 var grpc = require('bindings')('grpc.node');
 
diff --git a/src/node/test/channel_test.js b/src/node/test/channel_test.js
index 449a8cc4c3..33200c99ee 100644
--- a/src/node/test/channel_test.js
+++ b/src/node/test/channel_test.js
@@ -31,6 +31,8 @@
  *
  */
 
+'use strict';
+
 var assert = require('assert');
 var grpc = require('bindings')('grpc.node');
 
diff --git a/src/node/test/constant_test.js b/src/node/test/constant_test.js
index 4a403868c7..ecc98ec443 100644
--- a/src/node/test/constant_test.js
+++ b/src/node/test/constant_test.js
@@ -31,6 +31,8 @@
  *
  */
 
+'use strict';
+
 var assert = require('assert');
 var grpc = require('bindings')('grpc.node');
 
diff --git a/src/node/test/end_to_end_test.js b/src/node/test/end_to_end_test.js
index 8e99d6f162..1cc1928691 100644
--- a/src/node/test/end_to_end_test.js
+++ b/src/node/test/end_to_end_test.js
@@ -31,6 +31,8 @@
  *
  */
 
+'use strict';
+
 var assert = require('assert');
 var grpc = require('bindings')('grpc.node');
 
@@ -227,7 +229,7 @@ describe('end-to-end', function() {
         response_batch[grpc.opType.RECV_CLOSE_ON_SERVER] = true;
         server_call.startBatch(response_batch, function(err, response) {
           assert(response['send status']);
-          assert(!response['cancelled']);
+          assert(!response.cancelled);
           done();
         });
       });
diff --git a/src/node/test/interop_sanity_test.js b/src/node/test/interop_sanity_test.js
index d1bdd1660f..8dc933eac5 100644
--- a/src/node/test/interop_sanity_test.js
+++ b/src/node/test/interop_sanity_test.js
@@ -31,6 +31,8 @@
  *
  */
 
+'use strict';
+
 var interop_server = require('../interop/interop_server.js');
 var interop_client = require('../interop/interop_client.js');
 
diff --git a/src/node/test/math_client_test.js b/src/node/test/math_client_test.js
index fd946e0325..d83f64116f 100644
--- a/src/node/test/math_client_test.js
+++ b/src/node/test/math_client_test.js
@@ -31,6 +31,8 @@
  *
  */
 
+'use strict';
+
 var assert = require('assert');
 
 var grpc = require('..');
@@ -59,7 +61,7 @@ describe('Math client', function() {
   });
   it('should handle a single request', function(done) {
     var arg = {dividend: 7, divisor: 4};
-    var call = math_client.div(arg, function handleDivResult(err, value) {
+    math_client.div(arg, function handleDivResult(err, value) {
       assert.ifError(err);
       assert.equal(value.quotient, 1);
       assert.equal(value.remainder, 3);
diff --git a/src/node/test/surface_test.js b/src/node/test/surface_test.js
index d6694724e5..91d8197bee 100644
--- a/src/node/test/surface_test.js
+++ b/src/node/test/surface_test.js
@@ -31,9 +31,9 @@
  *
  */
 
-var assert = require('assert');
+'use strict';
 
-var surface_server = require('../src/server.js');
+var assert = require('assert');
 
 var surface_client = require('../src/client.js');