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diff --git a/remote/test/puppeteer/test/src/coverage.spec.ts b/remote/test/puppeteer/test/src/coverage.spec.ts
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+++ b/remote/test/puppeteer/test/src/coverage.spec.ts
@@ -0,0 +1,356 @@
+/**
+ * Copyright 2018 Google Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import expect from 'expect';
+
+import {
+  getTestState,
+  setupTestPageAndContextHooks,
+  setupTestBrowserHooks,
+} from './mocha-utils.js';
+
+describe('Coverage specs', function () {
+  describe('JSCoverage', function () {
+    setupTestBrowserHooks();
+    setupTestPageAndContextHooks();
+
+    it('should work', async () => {
+      const {page, server} = getTestState();
+      await page.coverage.startJSCoverage();
+      await page.goto(server.PREFIX + '/jscoverage/simple.html', {
+        waitUntil: 'networkidle0',
+      });
+      const coverage = await page.coverage.stopJSCoverage();
+      expect(coverage).toHaveLength(1);
+      expect(coverage[0]!.url).toContain('/jscoverage/simple.html');
+      expect(coverage[0]!.ranges).toEqual([
+        {start: 0, end: 17},
+        {start: 35, end: 61},
+      ]);
+    });
+    it('should report sourceURLs', async () => {
+      const {page, server} = getTestState();
+
+      await page.coverage.startJSCoverage();
+      await page.goto(server.PREFIX + '/jscoverage/sourceurl.html');
+      const coverage = await page.coverage.stopJSCoverage();
+      expect(coverage).toHaveLength(1);
+      expect(coverage[0]!.url).toBe('nicename.js');
+    });
+    it('should ignore eval() scripts by default', async () => {
+      const {page, server} = getTestState();
+
+      await page.coverage.startJSCoverage();
+      await page.goto(server.PREFIX + '/jscoverage/eval.html');
+      const coverage = await page.coverage.stopJSCoverage();
+      expect(coverage).toHaveLength(1);
+    });
+    it("shouldn't ignore eval() scripts if reportAnonymousScripts is true", async () => {
+      const {page, server} = getTestState();
+
+      await page.coverage.startJSCoverage({reportAnonymousScripts: true});
+      await page.goto(server.PREFIX + '/jscoverage/eval.html');
+      const coverage = await page.coverage.stopJSCoverage();
+      expect(
+        coverage.find(entry => {
+          return entry.url.startsWith('debugger://');
+        })
+      ).not.toBe(null);
+      expect(coverage).toHaveLength(2);
+    });
+    it('should ignore pptr internal scripts if reportAnonymousScripts is true', async () => {
+      const {page, server} = getTestState();
+
+      await page.coverage.startJSCoverage({reportAnonymousScripts: true});
+      await page.goto(server.EMPTY_PAGE);
+      await page.evaluate('console.log("foo")');
+      await page.evaluate(() => {
+        return console.log('bar');
+      });
+      const coverage = await page.coverage.stopJSCoverage();
+      expect(coverage).toHaveLength(0);
+    });
+    it('should report multiple scripts', async () => {
+      const {page, server} = getTestState();
+
+      await page.coverage.startJSCoverage();
+      await page.goto(server.PREFIX + '/jscoverage/multiple.html');
+      const coverage = await page.coverage.stopJSCoverage();
+      expect(coverage).toHaveLength(2);
+      coverage.sort((a, b) => {
+        return a.url.localeCompare(b.url);
+      });
+      expect(coverage[0]!.url).toContain('/jscoverage/script1.js');
+      expect(coverage[1]!.url).toContain('/jscoverage/script2.js');
+    });
+    it('should report right ranges', async () => {
+      const {page, server} = getTestState();
+
+      await page.coverage.startJSCoverage();
+      await page.goto(server.PREFIX + '/jscoverage/ranges.html');
+      const coverage = await page.coverage.stopJSCoverage();
+      expect(coverage).toHaveLength(1);
+      const entry = coverage[0]!;
+      expect(entry.ranges).toHaveLength(2);
+      const range1 = entry.ranges[0]!;
+      expect(entry.text.substring(range1.start, range1.end)).toBe('\n');
+      const range2 = entry.ranges[1]!;
+      expect(entry.text.substring(range2.start, range2.end)).toBe(
+        `console.log('used!');if(true===false)`
+      );
+    });
+    it('should report right ranges for "per function" scope', async () => {
+      const {page, server} = getTestState();
+
+      const coverageOptions = {
+        useBlockCoverage: false,
+      };
+
+      await page.coverage.startJSCoverage(coverageOptions);
+      await page.goto(server.PREFIX + '/jscoverage/ranges.html');
+      const coverage = await page.coverage.stopJSCoverage();
+      expect(coverage).toHaveLength(1);
+      const entry = coverage[0]!;
+      expect(entry.ranges).toHaveLength(2);
+      const range1 = entry.ranges[0]!;
+      expect(entry.text.substring(range1.start, range1.end)).toBe('\n');
+      const range2 = entry.ranges[1]!;
+      expect(entry.text.substring(range2.start, range2.end)).toBe(
+        `console.log('used!');if(true===false)console.log('unused!');`
+      );
+    });
+    it('should report scripts that have no coverage', async () => {
+      const {page, server} = getTestState();
+
+      await page.coverage.startJSCoverage();
+      await page.goto(server.PREFIX + '/jscoverage/unused.html');
+      const coverage = await page.coverage.stopJSCoverage();
+      expect(coverage).toHaveLength(1);
+      const entry = coverage[0]!;
+      expect(entry.url).toContain('unused.html');
+      expect(entry.ranges).toHaveLength(0);
+    });
+    it('should work with conditionals', async () => {
+      const {page, server} = getTestState();
+
+      await page.coverage.startJSCoverage();
+      await page.goto(server.PREFIX + '/jscoverage/involved.html');
+      const coverage = await page.coverage.stopJSCoverage();
+      expect(
+        JSON.stringify(coverage, null, 2).replace(/:\d{4,5}\//g, ':<PORT>/')
+      ).toBeGolden('jscoverage-involved.txt');
+    });
+    // @see https://crbug.com/990945
+    it.skip('should not hang when there is a debugger statement', async () => {
+      const {page, server} = getTestState();
+
+      await page.coverage.startJSCoverage();
+      await page.goto(server.EMPTY_PAGE);
+      await page.evaluate(() => {
+        debugger; // eslint-disable-line no-debugger
+      });
+      await page.coverage.stopJSCoverage();
+    });
+    describe('resetOnNavigation', function () {
+      it('should report scripts across navigations when disabled', async () => {
+        const {page, server} = getTestState();
+
+        await page.coverage.startJSCoverage({resetOnNavigation: false});
+        await page.goto(server.PREFIX + '/jscoverage/multiple.html');
+        await page.goto(server.EMPTY_PAGE);
+        const coverage = await page.coverage.stopJSCoverage();
+        expect(coverage).toHaveLength(2);
+      });
+
+      it('should NOT report scripts across navigations when enabled', async () => {
+        const {page, server} = getTestState();
+
+        await page.coverage.startJSCoverage(); // Enabled by default.
+        await page.goto(server.PREFIX + '/jscoverage/multiple.html');
+        await page.goto(server.EMPTY_PAGE);
+        const coverage = await page.coverage.stopJSCoverage();
+        expect(coverage).toHaveLength(0);
+      });
+    });
+    describe('includeRawScriptCoverage', function () {
+      it('should not include rawScriptCoverage field when disabled', async () => {
+        const {page, server} = getTestState();
+        await page.coverage.startJSCoverage();
+        await page.goto(server.PREFIX + '/jscoverage/simple.html', {
+          waitUntil: 'networkidle0',
+        });
+        const coverage = await page.coverage.stopJSCoverage();
+        expect(coverage).toHaveLength(1);
+        expect(coverage[0]!.rawScriptCoverage).toBeUndefined();
+      });
+      it('should include rawScriptCoverage field when enabled', async () => {
+        const {page, server} = getTestState();
+        await page.coverage.startJSCoverage({
+          includeRawScriptCoverage: true,
+        });
+        await page.goto(server.PREFIX + '/jscoverage/simple.html', {
+          waitUntil: 'networkidle0',
+        });
+        const coverage = await page.coverage.stopJSCoverage();
+        expect(coverage).toHaveLength(1);
+        expect(coverage[0]!.rawScriptCoverage).toBeTruthy();
+      });
+    });
+    // @see https://crbug.com/990945
+    it.skip('should not hang when there is a debugger statement', async () => {
+      const {page, server} = getTestState();
+
+      await page.coverage.startJSCoverage();
+      await page.goto(server.EMPTY_PAGE);
+      await page.evaluate(() => {
+        debugger; // eslint-disable-line no-debugger
+      });
+      await page.coverage.stopJSCoverage();
+    });
+  });
+
+  describe('CSSCoverage', function () {
+    setupTestBrowserHooks();
+    setupTestPageAndContextHooks();
+
+    it('should work', async () => {
+      const {page, server} = getTestState();
+
+      await page.coverage.startCSSCoverage();
+      await page.goto(server.PREFIX + '/csscoverage/simple.html');
+      const coverage = await page.coverage.stopCSSCoverage();
+      expect(coverage).toHaveLength(1);
+      expect(coverage[0]!.url).toContain('/csscoverage/simple.html');
+      expect(coverage[0]!.ranges).toEqual([{start: 1, end: 22}]);
+      const range = coverage[0]!.ranges[0]!;
+      expect(coverage[0]!.text.substring(range.start, range.end)).toBe(
+        'div { color: green; }'
+      );
+    });
+    it('should report sourceURLs', async () => {
+      const {page, server} = getTestState();
+
+      await page.coverage.startCSSCoverage();
+      await page.goto(server.PREFIX + '/csscoverage/sourceurl.html');
+      const coverage = await page.coverage.stopCSSCoverage();
+      expect(coverage).toHaveLength(1);
+      expect(coverage[0]!.url).toBe('nicename.css');
+    });
+    it('should report multiple stylesheets', async () => {
+      const {page, server} = getTestState();
+
+      await page.coverage.startCSSCoverage();
+      await page.goto(server.PREFIX + '/csscoverage/multiple.html');
+      const coverage = await page.coverage.stopCSSCoverage();
+      expect(coverage).toHaveLength(2);
+      coverage.sort((a, b) => {
+        return a.url.localeCompare(b.url);
+      });
+      expect(coverage[0]!.url).toContain('/csscoverage/stylesheet1.css');
+      expect(coverage[1]!.url).toContain('/csscoverage/stylesheet2.css');
+    });
+    it('should report stylesheets that have no coverage', async () => {
+      const {page, server} = getTestState();
+
+      await page.coverage.startCSSCoverage();
+      await page.goto(server.PREFIX + '/csscoverage/unused.html');
+      const coverage = await page.coverage.stopCSSCoverage();
+      expect(coverage).toHaveLength(1);
+      expect(coverage[0]!.url).toBe('unused.css');
+      expect(coverage[0]!.ranges).toHaveLength(0);
+    });
+    it('should work with media queries', async () => {
+      const {page, server} = getTestState();
+
+      await page.coverage.startCSSCoverage();
+      await page.goto(server.PREFIX + '/csscoverage/media.html');
+      const coverage = await page.coverage.stopCSSCoverage();
+      expect(coverage).toHaveLength(1);
+      expect(coverage[0]!.url).toContain('/csscoverage/media.html');
+      expect(coverage[0]!.ranges).toEqual([{start: 8, end: 40}]);
+    });
+    it('should work with complicated usecases', async () => {
+      const {page, server} = getTestState();
+
+      await page.coverage.startCSSCoverage();
+      await page.goto(server.PREFIX + '/csscoverage/involved.html');
+      const coverage = await page.coverage.stopCSSCoverage();
+      expect(
+        JSON.stringify(coverage, null, 2).replace(/:\d{4,5}\//g, ':<PORT>/')
+      ).toBeGolden('csscoverage-involved.txt');
+    });
+    it('should work with empty stylesheets', async () => {
+      const {page, server} = getTestState();
+
+      await page.coverage.startCSSCoverage();
+      await page.goto(server.PREFIX + '/csscoverage/empty.html');
+      const coverage = await page.coverage.stopCSSCoverage();
+      expect(coverage).toHaveLength(1);
+      expect(coverage[0]!.text).toEqual('');
+    });
+    it('should ignore injected stylesheets', async () => {
+      const {page} = getTestState();
+
+      await page.coverage.startCSSCoverage();
+      await page.addStyleTag({content: 'body { margin: 10px;}'});
+      // trigger style recalc
+      const margin = await page.evaluate(() => {
+        return window.getComputedStyle(document.body).margin;
+      });
+      expect(margin).toBe('10px');
+      const coverage = await page.coverage.stopCSSCoverage();
+      expect(coverage).toHaveLength(0);
+    });
+    it('should work with a recently loaded stylesheet', async () => {
+      const {page, server} = getTestState();
+
+      await page.coverage.startCSSCoverage();
+      await page.evaluate(async url => {
+        document.body.textContent = 'hello, world';
+
+        const link = document.createElement('link');
+        link.rel = 'stylesheet';
+        link.href = url;
+        document.head.appendChild(link);
+        await new Promise(x => {
+          return (link.onload = x);
+        });
+      }, server.PREFIX + '/csscoverage/stylesheet1.css');
+      const coverage = await page.coverage.stopCSSCoverage();
+      expect(coverage).toHaveLength(1);
+    });
+    describe('resetOnNavigation', function () {
+      it('should report stylesheets across navigations', async () => {
+        const {page, server} = getTestState();
+
+        await page.coverage.startCSSCoverage({resetOnNavigation: false});
+        await page.goto(server.PREFIX + '/csscoverage/multiple.html');
+        await page.goto(server.EMPTY_PAGE);
+        const coverage = await page.coverage.stopCSSCoverage();
+        expect(coverage).toHaveLength(2);
+      });
+      it('should NOT report scripts across navigations', async () => {
+        const {page, server} = getTestState();
+
+        await page.coverage.startCSSCoverage(); // Enabled by default.
+        await page.goto(server.PREFIX + '/csscoverage/multiple.html');
+        await page.goto(server.EMPTY_PAGE);
+        const coverage = await page.coverage.stopCSSCoverage();
+        expect(coverage).toHaveLength(0);
+      });
+    });
+  });
+});