diff --git a/package.json b/package.json
index 3fed837..2386d1c 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,7 @@
   "description": "Makes Fox Faces",
   "main": "server.js",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "test": "mocha"
   },
   "repository": {
     "type": "git",
@@ -21,9 +21,12 @@
     "chance": "^1.0.4",
     "express": "^4.14.0",
     "express-cluster": "0.0.4",
+    "mocha": "^3.4.2",
     "newrelic": "^1.35.1",
     "node-gyp": "^3.4.0",
     "sanitize-filename": "^1.6.1",
+    "sharp": "^0.18.1",
+    "supertest": "^3.0.0",
     "uuid": "^3.0.1"
   }
 }
diff --git a/test/test.js b/test/test.js
new file mode 100644
index 0000000..5523a7a
--- /dev/null
+++ b/test/test.js
@@ -0,0 +1,47 @@
+const request = require('supertest')
+const assert = require('assert')
+const sharp = require('sharp')
+
+const app = require('../server')
+
+const testUID = 4125370
+
+describe('Foxy-moxy', () => {
+    describe('fox generation', () => {
+        it('should respect widths < 400', (done) => {
+            const width = 158
+            request(app)
+                .get(`/${width}/${testUID}`)
+                .expect('Content-Type', 'image/png')
+                .expect(200)
+                .end(function(err, res) {
+                    assert(!err, String(err))
+                    sharp(res.body).metadata((err, metadata) => {
+                        assert(!err, String(err))
+                        assert.equal(metadata.format, 'png')
+                        assert.equal(metadata.height, width)
+                        assert.equal(metadata.width, width)
+                        done()
+                    })
+                })
+        })
+
+        it('should allow max width of 400', (done) => {
+            const width = 510
+            request(app)
+                .get(`/${width}/${testUID}`)
+                .expect('Content-Type', 'image/png')
+                .expect(200)
+                .end(function(err, res) {
+                    assert(!err, String(err))
+                    sharp(res.body).metadata((err, metadata) => {
+                        assert(!err, String(err))
+                        assert.equal(metadata.format, 'png')
+                        assert.equal(metadata.height, 400)
+                        assert.equal(metadata.width, 400)
+                        done()
+                    })
+                })
+        })
+    })
+})