Nightwatch.js: Use plugin nightwatch-helpers

nightwatch.conf.js

@@ -1,5 +1,5 @@
 module.exports = {
-    "src_folders": ["test"],
+    "src_folders": ["test/e2e/"],
 
     "detailed_output": false,
 
@@ -9,6 +9,9 @@ module.exports = {
         "port": 9515
     },
 
+    "custom_commands_path": ["node_modules/nightwatch-helpers/commands"],
+    "custom_assertions_path": ["node_modules/nightwatch-helpers/assertions"],
+
     "test_settings": {
         "default": {
             "desiredCapabilities": {

package.json

@@ -14,6 +14,7 @@
     "license": "MIT",
     "devDependencies": {
         "chromedriver": "^74.0.0",
-        "nightwatch": "^1.0.19"
+        "nightwatch": "^1.0.19",
+        "nightwatch-helpers": "^1.2.0"
     }
 }

test/test.js → test/e2e/basic.test.js

@@ -1,32 +1,25 @@
-module.exports = {};
-
-function test(name, cb) {
-    module.exports[name] = cb;
-}
+const { afterEach, beforeEach, test } = require('../helpers/')(module);
 
 const PAGE_URL = 'https://piecioshka.pl/blog';
 const PAGE_LOAD_DELAY = 3000;
 
-async function setup(client) {
+beforeEach(async (client) => {
+    console.log('beforeEach');
     await client.url(PAGE_URL);
     await client.waitForElementVisible('body', PAGE_LOAD_DELAY);
-}
+});
 
-async function teardown(client) {
-    // ...
-}
+afterEach(() => {
+    console.log('afterEach');
+});
 
 test('Spr. czy istnieje avatar', async (client) => {
-    await setup(client);
     await client.assert.elementPresent('#me img');
-    // await teardown(client);
 });
 
 test('Spr. czy jest odpowiednia liczba elementów w menu', async (client) => {
-    await setup(client);
     await client.elements('css selector', '.menu-item', (result) => {
         const menuSize = result.value.length;
         client.assert.equal(menuSize, 10);
     });
-    // await teardown(client);
 });

test/e2e/use-plugin.test.js

@@ -0,0 +1,7 @@
+const { test } = require('../helpers/')(module);
+
+test('Spr. czy istnieją wymagane paragrafy?', async (client) => {
+    await client.url('http://example.org');
+    await client.waitForElementVisible('body');
+    await client.assert.count('p', 2);
+});

test/helpers/index.js

@@ -0,0 +1,32 @@
+function test(module) {
+    return (name, cb) => {
+        module.exports[name] = cb;
+    }
+}
+
+function aspectize(name, mod) {
+    return (cb) => {
+        const previous = mod.exports[name];
+        mod.exports[name] = (client) => {
+            if (typeof previous === 'function') {
+                previous(client);
+            }
+            cb(client);
+        };
+    }
+}
+
+function beforeEach(mod) {
+    return aspectize('beforeEach', mod);
+}
+
+function afterEach(mod) {
+    return aspectize('afterEach', mod);
+}
+
+module.exports = (mod) => ({
+    it: test(mod),
+    test: test(mod),
+    beforeEach: beforeEach(mod),
+    afterEach: afterEach(mod),
+});