diff --git a/.eslintrc.js b/.eslintrc.js
index e3e6a37..e033996 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -1,31 +1,37 @@
 module.exports = {
-  "parser": "typescript-eslint-parser",
-  "env": {
-    "browser": true,
-    "es6": true,
-    "node": true
+  'parser': 'typescript-eslint-parser',
+  'globals': {
+    'Pretender': true,
+    'sinon': true, // karma-sinon
   },
-  "extends": "eslint:recommended",
-  "parserOptions": {
-    "ecmaVersion": 2015,
-    "sourceType": "module"
+  'env': {
+    'browser': true,
+    'es6': true,
+    'node': true,
+    'jquery': true,
+    'qunit': true,
   },
-  "rules": {
-    "indent": [
-      "error",
+  'extends': 'eslint:recommended',
+  'parserOptions': {
+    'ecmaVersion': 2015,
+    'sourceType': 'module'
+  },
+  'rules': {
+    'indent': [
+      'error',
       2
     ],
-    "linebreak-style": [
-      "error",
-      "unix"
+    'linebreak-style': [
+      'error',
+      'unix'
     ],
-    "quotes": [
-      "error",
-      "single"
+    'quotes': [
+      'error',
+      'single'
     ],
-    "semi": [
-      "error",
-      "always"
+    'semi': [
+      'error',
+      'always'
     ]
   }
 };
diff --git a/package.json b/package.json
index bf06508..c7a2c47 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
     "tests-only": "karma start --single-run",
     "tests-only-ci": "karma start --single-run --browsers PhantomJS",
     "lint": "jshint pretender.js test",
-    "eslint": "eslint src/*.ts",
+    "eslint": "eslint src/*.ts test",
     "test:server": "karma start --no-single-run",
     "build": "rollup --config"
   },
diff --git a/test/calling_test.js b/test/calling_test.js
index 7b1d3c9..c3f9a2f 100644
--- a/test/calling_test.js
+++ b/test/calling_test.js
@@ -136,9 +136,7 @@ describe('pretender invoking', function(config) {
   });
 
   it('adds requests to the list of handled requests', function(assert) {
-    var params;
-    this.pretender.get('/some/path', function(request) {
-      params = request.queryParams;
+    this.pretender.get('/some/path', function(/*request*/) {
     });
 
     $.ajax({ url: '/some/path' });
@@ -147,8 +145,8 @@ describe('pretender invoking', function(config) {
     assert.equal(req.url, '/some/path');
   });
 
-  it("increments the handler's request count", function(assert) {
-    var handler = function(req) {};
+  it('increments the handler\'s request count', function(assert) {
+    var handler = function(/*req*/) {};
 
     this.pretender.get('/some/path', handler);
 
@@ -161,7 +159,7 @@ describe('pretender invoking', function(config) {
     var done = assert.async();
 
     var json = '{foo: "bar"}';
-    this.pretender.get('/some/path', function(req) {
+    this.pretender.get('/some/path', function(/*req*/) {
       return [200, {}, json];
     });
 
@@ -182,7 +180,7 @@ describe('pretender invoking', function(config) {
 
     var obj = { foo: 'bar' };
     this.pretender.prepareBody = JSON.stringify;
-    this.pretender.get('/some/path', function(req) {
+    this.pretender.get('/some/path', function(/*req*/) {
       return [200, {}, obj];
     });
 
@@ -203,7 +201,7 @@ describe('pretender invoking', function(config) {
       return headers;
     };
 
-    this.pretender.get('/some/path', function(req) {
+    this.pretender.get('/some/path', function(/*req*/) {
       return [200, {}, ''];
     });
 
@@ -220,10 +218,10 @@ describe('pretender invoking', function(config) {
     assert.expect(1);
 
     var latestHandlerWasCalled = false;
-    this.pretender.get('/some/path', function(request) {
+    this.pretender.get('/some/path', function(/*request*/) {
       assert.ok(false);
     });
-    this.pretender.get('/some/path', function(request) {
+    this.pretender.get('/some/path', function(/*request*/) {
       latestHandlerWasCalled = true;
     });
     $.ajax({ url: '/some/path' });
@@ -235,7 +233,7 @@ describe('pretender invoking', function(config) {
   ) {
     var pretender = this.pretender;
 
-    pretender.get('/some/path', function(request) {
+    pretender.get('/some/path', function(/*request*/) {
       return [200, {}, ''];
     });
 
@@ -248,7 +246,7 @@ describe('pretender invoking', function(config) {
     var done = assert.async();
     var val = 'unset';
 
-    this.pretender.get('/some/path', function(request) {
+    this.pretender.get('/some/path', function(/*request*/) {
       return [200, {}, ''];
     });
 
@@ -269,7 +267,7 @@ describe('pretender invoking', function(config) {
 
     this.pretender.get(
       '/some/path',
-      function(request) {
+      function(/*request*/) {
         return [200, {}, ''];
       },
       false
@@ -296,7 +294,7 @@ describe('pretender invoking', function(config) {
 
     this.pretender.get(
       '/some/path',
-      function(request) {
+      function(/*request*/) {
         return [200, {}, ''];
       },
       function() {
@@ -336,7 +334,7 @@ describe('pretender invoking', function(config) {
 
     this.pretender.get(
       '/some/path',
-      function(request) {
+      function(/*request*/) {
         return [200, {}, ''];
       },
       100
@@ -362,7 +360,7 @@ describe('pretender invoking', function(config) {
 
     this.pretender.get(
       '/some/path',
-      function(request) {
+      function(/*request*/) {
         return [200, {}, ''];
       },
       true
@@ -391,7 +389,7 @@ describe('pretender invoking', function(config) {
   it('requiresManualResolution returns true for endpoints configured with `true` for async', function(
     assert
   ) {
-    this.pretender.get('/some/path', function(request) {}, true);
+    this.pretender.get('/some/path', function(/*request*/) {}, true);
     this.pretender.get('/some/other/path', function() {});
 
     assert.ok(this.pretender.requiresManualResolution('get', '/some/path'));
@@ -408,7 +406,7 @@ describe('pretender invoking', function(config) {
       var progressEventCount = 0;
       this.pretender.post(
         '/uploads',
-        function(request) {
+        function(/*request*/) {
           return [200, {}, ''];
         },
         300
@@ -416,7 +414,7 @@ describe('pretender invoking', function(config) {
 
       var xhr = new window.XMLHttpRequest();
       xhr.open('POST', '/uploads');
-      xhr.upload.onprogress = function(e) {
+      xhr.upload.onprogress = function(/*e*/) {
         progressEventCount++;
       };
       xhr.onload = function() {
@@ -431,14 +429,14 @@ describe('pretender invoking', function(config) {
     }
   );
 
-  it("`onprogress` upload events don't keep firing once the request has ended", function(
+  it('`onprogress` upload events don\'t keep firing once the request has ended', function(
     assert
   ) {
     clock = sinon.useFakeTimers();
     var progressEventCount = 0;
     this.pretender.post(
       '/uploads',
-      function(request) {
+      function(/*request*/) {
         return [200, {}, ''];
       },
       210
@@ -446,7 +444,7 @@ describe('pretender invoking', function(config) {
 
     var xhr = new window.XMLHttpRequest();
     xhr.open('POST', '/uploads');
-    xhr.upload.onprogress = function(e) {
+    xhr.upload.onprogress = function(/*e*/) {
       progressEventCount++;
     };
     xhr.send('some data');
@@ -467,7 +465,7 @@ describe('pretender invoking', function(config) {
 
     this.pretender.post(
       '/uploads',
-      function(request) {
+      function(/*request*/) {
         return [200, {}, ''];
       },
       210
@@ -475,7 +473,7 @@ describe('pretender invoking', function(config) {
 
     var xhr = new window.XMLHttpRequest();
     xhr.open('POST', '/uploads');
-    xhr.upload.onprogress = function(e) {
+    xhr.upload.onprogress = function(/*e*/) {
       progressEventCount++;
     };
     xhr.send('some data');
@@ -497,7 +495,7 @@ describe('pretender invoking', function(config) {
     var progressEventCount = 0;
     this.pretender.get(
       '/downloads',
-      function(request) {
+      function(/*request*/) {
         return [200, {}, ''];
       },
       300
@@ -505,7 +503,7 @@ describe('pretender invoking', function(config) {
 
     var xhr = new window.XMLHttpRequest();
     xhr.open('GET', '/downloads');
-    xhr.onprogress = function(e) {
+    xhr.onprogress = function(/*e*/) {
       progressEventCount++;
     };
     xhr.onload = function() {
@@ -519,14 +517,14 @@ describe('pretender invoking', function(config) {
     xhr.send('some data');
   });
 
-  it("`onprogress` download events don't keep firing once the request has ended", function(
+  it('`onprogress` download events don\'t keep firing once the request has ended', function(
     assert
   ) {
     clock = sinon.useFakeTimers();
     var progressEventCount = 0;
     this.pretender.get(
       '/downloads',
-      function(request) {
+      function(/*request*/) {
         return [200, {}, ''];
       },
       210
@@ -534,7 +532,7 @@ describe('pretender invoking', function(config) {
 
     var xhr = new window.XMLHttpRequest();
     xhr.open('GET', '/downloads');
-    xhr.onprogress = function(e) {
+    xhr.onprogress = function(/*e*/) {
       progressEventCount++;
     };
     xhr.send('some data');
@@ -553,7 +551,7 @@ describe('pretender invoking', function(config) {
     clock = sinon.useFakeTimers();
     this.pretender.get(
       '/downloads',
-      function(request) {
+      function(/*request*/) {
         return [200, {}, ''];
       },
       210
@@ -561,7 +559,7 @@ describe('pretender invoking', function(config) {
 
     var xhr = new window.XMLHttpRequest();
     xhr.open('GET', '/downloads');
-    xhr.onprogress = function(e) {
+    xhr.onprogress = function(/*e*/) {
       progressEventCount++;
     };
     xhr.send('some data');
@@ -594,7 +592,7 @@ describe('pretender invoking', function(config) {
 
     var json = '{foo: "bar"}';
 
-    this.pretender.get('/some/path', function(req) {
+    this.pretender.get('/some/path', function(/*req*/) {
       return new Promise(function(resolve) {
         resolve([200, {}, json]);
       });
diff --git a/test/creation_test.js b/test/creation_test.js
index fcb67df..f6bf86b 100644
--- a/test/creation_test.js
+++ b/test/creation_test.js
@@ -11,12 +11,10 @@ describe('pretender creation', function(config) {
   });
 
   it('a mapping function is optional', function(assert) {
-    var result = false;
     try {
       pretender = new Pretender();
-      result = true;
     } catch (e) {
-      // fail
+      assert.ok(false);
     }
 
     assert.ok(true, 'does not raise');
diff --git a/test/force_passthrough_test.js b/test/force_passthrough_test.js
index d1e46a7..6245f92 100644
--- a/test/force_passthrough_test.js
+++ b/test/force_passthrough_test.js
@@ -1,4 +1,3 @@
-var originalXMLHttpRequest;
 var describe = QUnit.module;
 var it = QUnit.test;
 
@@ -12,11 +11,10 @@ describe('passthrough requests', function(config) {
   });
 
   it('passthrough request when forcePassthrough is true', function(assert) {
-    var pretender = this.pretender;
     var done = assert.async();
 
     var passthroughInvoked = false;
-    this.pretender.passthroughRequest = function(verb, path, request) {
+    this.pretender.passthroughRequest = function(verb, path/*, request*/) {
       passthroughInvoked = true;
       assert.equal(verb, 'GET');
       assert.equal(path, '/some/path');
@@ -36,7 +34,7 @@ describe('passthrough requests', function(config) {
     var pretender = this.pretender;
     pretender.forcePassthrough = false;
 
-    this.pretender.unhandledRequest = function(verb, path, request) {
+    this.pretender.unhandledRequest = function(verb, path/*, request*/) {
       assert.equal(verb, 'GET');
       assert.equal(path, '/some/path');
     };
diff --git a/test/passthrough_test.js b/test/passthrough_test.js
index 5a412d4..67e9541 100644
--- a/test/passthrough_test.js
+++ b/test/passthrough_test.js
@@ -56,8 +56,8 @@ describe('passthrough requests', function(config) {
       url: '/some/path',
       error: function(xhr) {
         assert.equal(xhr.status, 404);
-        jQuery = $ = jQuery2;
-        assert.ok(/^2/.test(jQuery.fn.jquery));
+        var _jQuery = jQuery2;
+        assert.ok(/^2/.test(_jQuery.fn.jquery));
         done();
       },
     });
@@ -77,7 +77,7 @@ describe('passthrough requests', function(config) {
         this.upload = {};
         this.send = {
           pretender: pretender,
-          apply: function(xhr, argument) {
+          apply: function(xhr/*, argument*/) {
             assert.ok('timeout' in xhr);
             assert.ok('withCredentials' in xhr);
             assert.ok('onprogress' in xhr);
@@ -113,7 +113,7 @@ describe('passthrough requests', function(config) {
         this.responseType = '';
         this.send = {
           pretender: pretender,
-          apply: function(xhr, argument) {
+          apply: function(xhr/*, argument*/) {
             assert.equal(xhr.responseType, 'arraybuffer');
             this.pretender.resolve(xhr);
             done();
@@ -143,7 +143,7 @@ describe('passthrough requests', function(config) {
       this.upload = {};
       this.send = {
         pretender: pretender,
-        apply: function(xhr, argument) {
+        apply: function(xhr/*, argument*/) {
           assert.ok(!('timeout' in xhr));
           assert.ok(!('withCredentials' in xhr));
           assert.ok(!('onprogress' in xhr));
@@ -311,7 +311,7 @@ describe('passthrough requests', function(config) {
       this.onload = true;
       this.send = {
         pretender: pretender,
-        apply: function(xhr, argument) {
+        apply: function(xhr/*, argument*/) {
           xhr.onload({ target: xhr, type: 'load' });
         },
       };