diff --git a/test/macaca-wd.test.js b/test/browser.test.js
similarity index 94%
rename from test/macaca-wd.test.js
rename to test/browser.test.js
index 6bda8422..495fd55e 100644
--- a/test/macaca-wd.test.js
+++ b/test/browser.test.js
@@ -6,7 +6,7 @@ const { Server } = require('./helper');
 
 const wd = require('../lib/macaca-wd');
 
-describe('test/macaca-wd.test.js', function() {
+describe('test/browser.test.js', function() {
   let driver, server;
   before(() => {
     server = new Server();
diff --git a/test/session.test.js b/test/session.test.js
new file mode 100644
index 00000000..003ddc00
--- /dev/null
+++ b/test/session.test.js
@@ -0,0 +1,103 @@
+'use strict';
+
+const assert = require('assert');
+
+const { Server } = require('./helper');
+
+const wd = require('../lib/macaca-wd');
+
+describe('test/session.test.js', function() {
+  let driver, server;
+  before(() => {
+    server = new Server();
+    server.start();
+    const remoteConfig = {
+      host: 'localhost',
+      port: 3456
+    };
+
+    driver = wd.promiseChainRemote(remoteConfig);
+    driver.configureHttp({
+      timeout: 20 * 1000,
+      retries: 5,
+      retryDelay: 5
+    });
+  });
+
+  after(() => {
+    server.stop();
+  });
+
+  /**
+   * https://macacajs.github.io/macaca-wd/#init
+   */
+  describe('init', async () => {
+    it('should work', async () => {
+      await driver.init({
+        platformName: 'desktop',
+        browserName: 'chrome'
+      });
+      assert.equal(server.ctx.method, 'POST');
+      assert.equal(server.ctx.url, '/wd/hub/session');
+      assert.deepEqual(server.ctx.request.body, {
+        desiredCapabilities: {
+          platformName: 'desktop',
+          browserName: 'chrome',
+          version: '',
+          javascriptEnabled: true,
+          platform: 'ANY',
+        },
+      });
+      assert.deepEqual(server.ctx.response.body, {
+        sessionId: 'sessionId',
+        status: 0,
+        value: '',
+      });
+    });
+  });
+
+  /**
+   * https://macacajs.github.io/macaca-wd/#quit
+   */
+  describe('quit', async () => {
+    beforeEach(async () => {
+      await driver.init({
+        platformName: 'desktop',
+        browserName: 'chrome'
+      });
+    });
+    it('should work', async () => {
+      await driver.quit();
+      assert.equal(server.ctx.method, 'DELETE');
+      assert.equal(server.ctx.url, '/wd/hub/session/sessionId');
+      assert.deepEqual(server.ctx.request.body, {});
+      assert.deepEqual(server.ctx.response.body, {
+        sessionId: 'sessionId',
+        status: 0,
+        value: '',
+      });
+    });
+  });
+
+  /**
+   * https://macacajs.github.io/macaca-wd/#sessions
+   */
+  describe('sessions', async () => {
+    beforeEach(async () => {
+      await driver.init({
+        platformName: 'desktop',
+        browserName: 'chrome'
+      });
+    });
+    it('should work', async () => {
+      await driver.sessions();
+      assert.equal(server.ctx.method, 'GET');
+      assert.equal(server.ctx.url, '/wd/hub/sessions');
+      assert.deepEqual(server.ctx.response.body, {
+        sessionId: 'sessionId',
+        status: 0,
+        value: '',
+      });
+    });
+  });
+});
diff --git a/test/helper.test.js b/test/utility.test.js
similarity index 77%
rename from test/helper.test.js
rename to test/utility.test.js
index b8d748b9..cd8db6be 100644
--- a/test/helper.test.js
+++ b/test/utility.test.js
@@ -4,7 +4,7 @@ const assert = require('assert');
 
 const helper = require('../lib/helper');
 
-describe('test/helper.test.js', function() {
+describe('test/utility.test.js', function() {
   it('should be ok', function() {
     assert.ok(helper);
   });