diff --git a/test/assets/frames/frameset.html b/test/assets/frames/frameset.html
new file mode 100644
index 00000000..4d56f888
--- /dev/null
+++ b/test/assets/frames/frameset.html
@@ -0,0 +1,8 @@
+<frameset>
+  <frameset>
+    <frame src='./frame.html'></frame>
+    <frame src='about:blank'></frame>
+  </frameset>
+  <frame src='/empty.html'></frame>
+  <frame></frame>
+</frameset>
diff --git a/test/frame.spec.js b/test/frame.spec.js
index 817cc037..07bd123f 100644
--- a/test/frame.spec.js
+++ b/test/frame.spec.js
@@ -136,6 +136,26 @@ module.exports.addTests = function({testRunner, expect}) {
       expect(detachedFrames.length).toBe(4);
       expect(navigatedFrames.length).toBe(1);
     });
+    it('should support framesets', async({page, server}) => {
+      let attachedFrames = [];
+      let detachedFrames = [];
+      let navigatedFrames = [];
+      page.on('frameattached', frame => attachedFrames.push(frame));
+      page.on('framedetached', frame => detachedFrames.push(frame));
+      page.on('framenavigated', frame => navigatedFrames.push(frame));
+      await page.goto(server.PREFIX + '/frames/frameset.html');
+      expect(attachedFrames.length).toBe(4);
+      expect(detachedFrames.length).toBe(0);
+      expect(navigatedFrames.length).toBe(5);
+
+      attachedFrames = [];
+      detachedFrames = [];
+      navigatedFrames = [];
+      await page.goto(server.EMPTY_PAGE);
+      expect(attachedFrames.length).toBe(0);
+      expect(detachedFrames.length).toBe(4);
+      expect(navigatedFrames.length).toBe(1);
+    });
     it('should report frame.name()', async({page, server}) => {
       await utils.attachFrame(page, 'theFrameId', server.EMPTY_PAGE);
       await page.evaluate(url => {
diff --git a/test/jshandle.spec.js b/test/jshandle.spec.js
index fdd6b5bc..15b3b6df 100644
--- a/test/jshandle.spec.js
+++ b/test/jshandle.spec.js
@@ -43,6 +43,24 @@ module.exports.addTests = function({testRunner, expect}) {
       ).catch(e => error = e);
       expect(error.message).toContain('Are you passing a nested JSHandle?');
     });
+    it('should accept object handle to unserializable value', async({page, server}) => {
+      const aHandle = await page.evaluateHandle(() => Infinity);
+      expect(await page.evaluate(e => Object.is(e, Infinity), aHandle)).toBe(true);
+    });
+    it('should use the same JS wrappers', async({page, server}) => {
+      const aHandle = await page.evaluateHandle(() => {
+        window.FOO = 123;
+        return window;
+      });
+      expect(await page.evaluate(e => e.FOO, aHandle)).toBe(123);
+    });
+    it('should work with primitives', async({page, server}) => {
+      const aHandle = await page.evaluateHandle(() => {
+        window.FOO = 123;
+        return window;
+      });
+      expect(await page.evaluate(e => e.FOO, aHandle)).toBe(123);
+    });
   });
 
   describe('JSHandle.getProperty', function() {
@@ -125,6 +143,13 @@ module.exports.addTests = function({testRunner, expect}) {
       expect(element).toBeTruthy();
       expect(await page.evaluate(e => e.nodeType === HTMLElement.TEXT_NODE, element));
     });
+    it('should work with nullified Node', async({page, server}) => {
+      await page.setContent('<section>test</section>');
+      await page.evaluate(() => delete Node);
+      const handle = await page.evaluateHandle(() => document.querySelector('section'));
+      const element = handle.asElement();
+      expect(element).not.toBe(null);
+    });
   });
 
   describe('JSHandle.toString', function() {
@@ -138,5 +163,25 @@ module.exports.addTests = function({testRunner, expect}) {
       const aHandle = await page.evaluateHandle(() => window);
       expect(aHandle.toString()).toBe('JSHandle@object');
     });
+    it('should work with different subtypes', async({page, server}) => {
+      expect((await page.evaluateHandle('(function(){})')).toString()).toBe('JSHandle@function');
+      expect((await page.evaluateHandle('12')).toString()).toBe('JSHandle:12');
+      expect((await page.evaluateHandle('true')).toString()).toBe('JSHandle:true');
+      expect((await page.evaluateHandle('undefined')).toString()).toBe('JSHandle:undefined');
+      expect((await page.evaluateHandle('"foo"')).toString()).toBe('JSHandle:foo');
+      expect((await page.evaluateHandle('Symbol()')).toString()).toBe('JSHandle@symbol');
+      expect((await page.evaluateHandle('new Map()')).toString()).toBe('JSHandle@map');
+      expect((await page.evaluateHandle('new Set()')).toString()).toBe('JSHandle@set');
+      expect((await page.evaluateHandle('[]')).toString()).toBe('JSHandle@array');
+      expect((await page.evaluateHandle('null')).toString()).toBe('JSHandle:null');
+      expect((await page.evaluateHandle('/foo/')).toString()).toBe('JSHandle@regexp');
+      expect((await page.evaluateHandle('document.body')).toString()).toBe('JSHandle@node');
+      expect((await page.evaluateHandle('new Date()')).toString()).toBe('JSHandle@date');
+      expect((await page.evaluateHandle('new WeakMap()')).toString()).toBe('JSHandle@weakmap');
+      expect((await page.evaluateHandle('new WeakSet()')).toString()).toBe('JSHandle@weakset');
+      expect((await page.evaluateHandle('new Error()')).toString()).toBe('JSHandle@error');
+      expect((await page.evaluateHandle('new Int32Array()')).toString()).toBe('JSHandle@typedarray');
+      expect((await page.evaluateHandle('new Proxy({}, {})')).toString()).toBe('JSHandle@proxy');
+    });
   });
 };
diff --git a/test/page.spec.js b/test/page.spec.js
index a50afe89..fc1b4781 100644
--- a/test/page.spec.js
+++ b/test/page.spec.js
@@ -71,6 +71,15 @@ module.exports.addTests = function({testRunner, expect, headless}) {
     });
   });
 
+  describe('Page.Events.Load', function() {
+    it('should fire when expected', async({page, server}) => {
+      await Promise.all([
+        page.goto('about:blank'),
+        utils.waitEvent(page, 'load'),
+      ]);
+    });
+  });
+
   (asyncawait ? describe : xdescribe)('Async stacks', () => {
     it('should work', async({page, server}) => {
       server.setRoute('/empty.html', (req, res) => {