re-add old tests

restored by checking out the version from
  e7c29f6
and then doing a find/cp retaining the folder structure:
  find . -name 'test.js' -exec cp --parents \{\} /tmp/samples/ \;

src/content/datachannel/basic/js/test.js

@@ -0,0 +1,31 @@
+/*
+ *  Copyright (c) 2018 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree.
+ */
+export default {
+  'It should transfer text over data channel': (browser) => {
+    const path = '/src/content/datachannel/basic/index.html';
+    const url = 'file://' + process.cwd() + path;
+
+    browser
+      .url(url)
+      .click('#startButton')
+      .expect.element('#sendButton').to.be.enabled.before(50);
+    browser.expect.element('#dataChannelSend').to.be.enabled.before(50);
+
+    browser.setValue('#dataChannelSend', 'HELLO, WORLD!');
+    browser
+      .click('#sendButton')
+      .pause(50)
+      .assert.value('#dataChannelReceive', 'HELLO, WORLD!');
+
+    browser
+      .click('#closeButton')
+      .expect.element('#sendButton').to.not.be.enabled.before(50);
+
+    browser.end();
+  }
+};

src/content/datachannel/datatransfer/js/test.js

@@ -0,0 +1,20 @@
+/*
+ *  Copyright (c) 2018 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree.
+ */
+export default {
+  'It should transfer data over data channel': (browser) => {
+    const path = '/src/content/datachannel/datatransfer/index.html';
+    const url = 'file://' + process.cwd() + path;
+
+    browser
+      .url(url)
+      .click('#sendTheData')
+      .pause(1000)
+      .assert.value('#receiveProgress', '16777200')
+      .end();
+  }
+};

src/content/datachannel/filetransfer/js/test.js

@@ -0,0 +1,22 @@
+/*
+ *  Copyright (c) 2018 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree.
+ */
+
+export default {
+  'It should transfer a file over a datachannel': (browser) => {
+    const path = '/src/content/datachannel/filetransfer/index.html';
+    const url = 'file://' + process.cwd() + path;
+
+    browser
+      .url(url)
+      .waitForElementNotVisible('#download', 100, 'File download link is not visible')
+      .waitForElementVisible('#fileInput', 1000)
+      .setValue('#fileInput', process.cwd() + '/src/content/devices/multi/images/poster.jpg')
+      .waitForElementVisible('#download', 10000, 'File download link is visible')
+      .end();
+  }
+};

src/content/devices/input-output/js/test.js

@@ -0,0 +1,20 @@
+/*
+ *  Copyright (c) 2018 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree.
+ */
+export default {
+  'It should have select elements for each media device': (browser) => {
+    const path = '/src/content/devices/input-output/index.html';
+    const url = 'file://' + process.cwd() + path;
+
+    browser
+      .url(url)
+      .waitForElementVisible('#audioSource option:nth-of-type(1)', 1000, 'Check that there is at least one audio source')
+      .waitForElementVisible('#audioOutput option:nth-of-type(1)', 1000, 'Check that there is at least one audio output')
+      .waitForElementVisible('#videoSource option:nth-of-type(1)', 1000, 'Check that there is at least one video source')
+      .end();
+  }
+};

src/content/getusermedia/gum/js/test.js

@@ -0,0 +1,19 @@
+/*
+ *  Copyright (c) 2018 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree.
+ */
+export default {
+  'It should have a video element': (browser) => {
+    const path = '/src/content/getusermedia/gum/index.html';
+    const url = 'file://' + process.cwd() + path;
+
+    browser
+      .url(url)
+      .waitForElementVisible('video', 5000)
+      .waitForClientConnected('video', 5000)
+      .end();
+  }
+};

src/content/getusermedia/resolution/js/test.js

@@ -0,0 +1,29 @@
+/*
+ *  Copyright (c) 2018 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree.
+ */
+export default {
+  'It should have a video element with specific width': (browser) => {
+    const path = '/src/content/getusermedia/resolution/index.html';
+    const url = 'file://' + process.cwd() + path;
+
+    browser
+      .url(url)
+      .click('button#qvga')
+      .waitForElementVisible('video', 5000)
+      .waitForClientConnected('video', 5000)
+      .assert.videoWidth('video', 320, 'Video width is 320 wide.')
+      .click('button#vga')
+      .waitForElementVisible('video', 5000)
+      .waitForClientConnected('video', 5000)
+      .assert.videoWidth('video', 640, 'Video width is 640 wide.')
+      .click('button#hd')
+      .waitForElementVisible('video', 5000)
+      .waitForClientConnected('video', 5000)
+      .assert.videoWidth('video', 1280, 'Video width is 1280 wide.')
+      .end();
+  }
+};

src/content/peerconnection/audio/js/test.js

@@ -0,0 +1,20 @@
+/*
+ *  Copyright (c) 2018 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree.
+ */
+export default {
+  'It should play audio remote': (browser) => {
+    const path = '/src/content/peerconnection/audio/index.html';
+    const url = 'file://' + process.cwd() + path;
+
+    // TODO Test all codecs?
+    browser
+      .url(url)
+      .click('#callButton')
+      .waitForClientConnected('#audio2', 5000, 'Receiving remote audio.')
+      .end();
+  }
+};

src/content/peerconnection/dtmf/js/test.js

@@ -0,0 +1,28 @@
+/*
+ *  Copyright (c) 2018 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree.
+ */
+export default {
+  'It should send DTMF codes': (browser) => {
+    const path = '/src/content/peerconnection/dtmf/index.html';
+    const url = 'file://' + process.cwd() + path;
+
+    // TODO Test all codecs?
+    browser
+      .url(url)
+      .click('#callButton')
+      .waitForClientConnected('audio', 1000, 'Receiving remote audio.')
+      .useXpath()
+      .click('/html/body/div/div[@id=\'dialPad\']/div[1]/button[1]') // 1
+      .click('/html/body/div/div[@id=\'dialPad\']/div[3]/button[1]') // 9
+      .click('/html/body/div/div[@id=\'dialPad\']/div[3]/button[4]') // #
+      .click('/html/body/div/div[@id=\'dialPad\']/div[4]/button[1]') // A
+      .useCss()
+      .assert.value('input#sentTones', '1 9 # A ')
+      .click('#hangupButton')
+      .end();
+  }
+};

src/content/peerconnection/multiple/js/test.js

@@ -0,0 +1,52 @@
+/*
+ *  Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree.
+ */
+/* eslint-env node */
+
+'use strict';
+// This is a basic test file for use with testling.
+// The test script language comes from tape.
+const test = require('tape');
+
+const webdriver = require('selenium-webdriver');
+const seleniumHelpers = require('webrtc-utilities').seleniumLib;
+
+test('PeerConnection multiple sample', t => {
+  const driver = seleniumHelpers.buildDriver();
+  const path = '/src/content/peerconnection/multiple/index.html';
+  const url = (process.env.BASEURL ? process.env.BASEURL : ('file://' + process.cwd())) + path;
+
+  driver.get(url)
+    .then(() => {
+      t.pass('page loaded');
+      return driver.findElement(webdriver.By.id('startButton')).click();
+    })
+    .then(() => {
+      t.pass('got media');
+      return driver.wait(() => driver.findElement(webdriver.By.id('callButton')).isEnabled());
+    })
+    .then(() => {
+      driver.findElement(webdriver.By.id('callButton')).click();
+      return driver.wait(() => driver.executeScript(
+        'return pc1Remote && pc1Remote.iceConnectionState === \'connected\'' +
+        ' && pc2Remote && pc2Remote.iceConnectionState === \'connected\';'), 30 * 1000);
+    })
+    .then(() => {
+      t.pass('multiple connections connected');
+      return driver.findElement(webdriver.By.id('hangupButton')).click();
+    })
+    .then(() => driver.wait(() => driver.executeScript('return pc1Local === null && ' +
+      'pc2Local === null'), 30 * 1000))
+    .then(() => {
+      t.pass('hangup');
+      t.end();
+    })
+    .then(null, err => {
+      t.fail(err);
+      t.end();
+    });
+});

src/content/peerconnection/munge-sdp/js/test.js

@@ -0,0 +1,78 @@
+/*
+ *  Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree.
+ */
+/* eslint-env node */
+
+'use strict';
+// This is a basic test file for use with testling.
+// The test script language comes from tape.
+const test = require('tape');
+
+const webdriver = require('selenium-webdriver');
+const seleniumHelpers = require('webrtc-utilities').seleniumLib;
+
+test('Munge SDP sample', t => {
+  const driver = seleniumHelpers.buildDriver();
+  const path = '/src/content/peerconnection/munge-sdp/index.html';
+  const url = (process.env.BASEURL ? process.env.BASEURL : ('file://' + process.cwd())) + path;
+
+  driver.get(url)
+    .then(() => {
+      t.pass('page loaded');
+      return driver.findElement(webdriver.By.id('getMedia')).click();
+    })
+    .then(() => driver.wait(() => driver.executeScript('return typeof window.localStream !== \'undefined\'')))
+    .then(() => {
+      t.pass('got media');
+      return driver.findElement(webdriver.By.id('createPeerConnection')).click();
+    })
+    .then(() => {
+      return driver.wait(webdriver.until.elementIsVisible(driver.findElement(webdriver.By.id('createOffer')))).click();
+    })
+    .then(() => {
+      // Need to wait for createOffer to succeed which takes some time
+      // on travis.
+      const script = 'return document.querySelector(\'#local>textarea\').value !== \'\'';
+      return driver.wait(() => driver.executeScript(script));
+    })
+    .then(() => driver.findElement(webdriver.By.css('#local>textarea')).getAttribute('value'))
+    .then(value => {
+      t.ok(value !== '', 'local SDP is shown in textarea');
+      return driver.findElement(webdriver.By.id('setOffer')).click();
+    })
+    .then(() => driver.findElement(webdriver.By.id('createAnswer')).click())
+    .then(() => {
+      // Need to wait for createAnswer to succeed which takes some time
+      // on travis.
+      return driver.wait(() => driver.executeScript(
+        'return document.querySelector(\'#remote>textarea\').value !== \'\''));
+    })
+    .then(() => driver.findElement(webdriver.By.css('#remote>textarea'))
+      .getAttribute('value'))
+    .then(value => {
+      t.ok(value !== '', 'remote SDP is shown in textarea');
+      return driver.findElement(webdriver.By.id('setAnswer')).click();
+    })
+    .then(() => driver.wait(() => driver.executeScript(
+      'return remotePeerConnection && ' +
+      'remotePeerConnection.iceConnectionState === \'connected\';'), 30 * 1000))
+    .then(() => {
+      t.pass('remotePeerConnection ICE connected');
+      // Need to make sure some data has had time to transfer.
+      return driver.wait(() => driver.executeScript('return typeof dataChannelDataReceived !== \'undefined\';'));
+    })
+    .then(() => driver.executeScript('return dataChannelDataReceived;'))
+    .then(value => t.ok(value !== '', 'dataChannelDataReceived is not empty.'))
+    .then(() => {
+      t.pass('remotePeerConnection ICE connected');
+      t.end();
+    })
+    .then(null, err => {
+      t.fail(err);
+      t.end();
+    });
+});

src/content/peerconnection/pc1/js/test.js

@@ -0,0 +1,47 @@
+/*
+ *  Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree.
+ */
+/* eslint-env node */
+
+'use strict';
+// This is a basic test file for use with testling.
+// The test script language comes from tape.
+const test = require('tape');
+
+test('PeerConnection pc1 sample', t => {
+  const webdriver = require('selenium-webdriver');
+  const seleniumHelpers = require('webrtc-utilities').seleniumLib;
+  const driver = seleniumHelpers.buildDriver();
+
+  const path = '/src/content/peerconnection/pc1/index.html';
+  const url = (process.env.BASEURL ? process.env.BASEURL : ('file://' + process.cwd())) + path;
+  driver.get(url)
+    .then(() => {
+      t.pass('page loaded');
+      return driver.findElement(webdriver.By.id('startButton')).click();
+    })
+    .then(() => driver.wait(() => driver.executeScript('return localStream !== null'), 30 * 1000))
+    .then(() => {
+      t.pass('got media');
+      return driver.findElement(webdriver.By.id('callButton')).click();
+    })
+    .then(() => driver.wait(() => driver.executeScript(
+      'return pc2 && pc2.iceConnectionState === \'connected\';'), 30 * 1000))
+    .then(() => {
+      t.pass('pc2 ICE connected');
+      return driver.findElement(webdriver.By.id('hangupButton')).click();
+    })
+    .then(() => driver.wait(() => driver.executeScript('return pc1 === null'), 30 * 1000))
+    .then(() => {
+      t.pass('hangup');
+      t.end();
+    })
+    .then(null, err => {
+      t.fail(err);
+      t.end();
+    });
+});