Update Composer, update everything

web/core/tests/Drupal/Nightwatch/Tests/exampleTest.js

@@ -0,0 +1,18 @@
+module.exports = {
+  '@tags': ['core'],
+  before(browser) {
+    browser.drupalInstall({
+      setupFile: 'core/tests/Drupal/TestSite/TestSiteInstallTestScript.php',
+    });
+  },
+  after(browser) {
+    browser.drupalUninstall();
+  },
+  'Test page': browser => {
+    browser
+      .drupalRelativeURL('/test-page')
+      .waitForElementVisible('body', 1000)
+      .assert.containsText('body', 'Test page text')
+      .drupalLogAndEnd({ onlyOnError: false });
+  },
+};

web/core/tests/Drupal/Nightwatch/Tests/loginTest.js

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+module.exports = {
+  '@tags': ['core'],
+
+  before(browser) {
+    browser.drupalInstall();
+  },
+  after(browser) {
+    browser.drupalUninstall();
+  },
+
+  'Test login': browser => {
+    browser
+      .drupalCreateUser({
+        name: 'user',
+        password: '123',
+        permissions: ['access site reports'],
+      })
+      .drupalLogin({ name: 'user', password: '123' })
+      .drupalRelativeURL('/admin/reports')
+      .expect.element('h1.page-title')
+      .text.to.contain('Reports');
+  },
+};

web/core/tests/Drupal/Nightwatch/Tests/statesTest.js

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+module.exports = {
+  '@tags': ['core'],
+  before(browser) {
+    browser.drupalInstall().drupalLoginAsAdmin(() => {
+      browser
+        .drupalRelativeURL('/admin/modules')
+        .setValue('input[type="search"]', 'FormAPI')
+        .waitForElementVisible('input[name="modules[form_test][enable]"]', 1000)
+        .click('input[name="modules[form_test][enable]"]')
+        .click('input[type="submit"]') // Submit module form.
+        .click('input[type="submit"]'); // Confirm installation of dependencies.
+    });
+  },
+  after(browser) {
+    browser.drupalUninstall();
+  },
+  'Test form with state API': browser => {
+    browser
+      .drupalRelativeURL('/form-test/javascript-states-form')
+      .waitForElementVisible('body', 1000)
+      .waitForElementNotVisible('input[name="textfield"]', 1000);
+  },
+};