Merge pull request #282 from core-ds/feature/jest-config

feat(arui-scripts): add in test command ability to use preset from configs

.changeset/happy-numbers-guess.md

@@ -0,0 +1,5 @@
+---
+'arui-scripts': minor
+---
+
+Добавление возможности использовать preset в jest конфигурации приложений, для переопределения настроек тестирования

packages/arui-scripts/package.json

@@ -62,7 +62,9 @@
         "image-minimizer-webpack-plugin": "^3.8.3",
         "imagemin": "^8.0.1",
         "imagemin-svgo": "^10.0.1",
-        "jest": "28.1.3",
+        "jest": "^29.7.0",
+        "jest-config": "^29.7.0",
+        "jest-resolve": "^29.7.0",
         "jest-snapshot-serializer-class-name-to-string": "1.0.0",
         "lodash.merge": "4.6.2",
         "mini-css-extract-plugin": "2.7.6",
@@ -118,7 +120,7 @@
         "@types/case-sensitive-paths-webpack-plugin": "2.1.6",
         "@types/compression-webpack-plugin": "4.0.1",
         "@types/fs-extra": "^9.0.13",
-        "@types/jest": "^26.0.24",
+        "@types/jest": "^29.5.14",
         "@types/lodash.merge": "^4.6.7",
         "@types/node": "12.20.55",
         "@types/react-dev-utils": "9.0.11",

packages/arui-scripts/src/commands/test/get-config.ts

@@ -0,0 +1,70 @@
+import fs from 'fs';
+import path from 'path';
+
+import { replaceRootDirInPath } from 'jest-config';
+import Resolver from 'jest-resolve';
+import merge from 'lodash.merge';
+
+import { configs } from '../../configs/app-configs';
+// eslint-disable-next-line @typescript-eslint/ban-ts-comment
+// @ts-ignore
+import defaultJestConfig from '../../configs/jest/settings';
+
+const PRESET_EXTENSIONS = ['.json', '.js', '.cjs', '.mjs'];
+const PRESET_NAME = 'jest-preset';
+
+export const getJestConfig = async () => {
+    const {preset, ...appJestConfig} = await getAppJestConfig();
+
+    let presetConfig = {};
+
+    if (preset) {
+        presetConfig = await getPresetConfig(preset);
+    }
+
+    return merge(defaultJestConfig, presetConfig, appJestConfig);
+};
+
+async function getAppJestConfig() {
+    const jestConfigPath = path.resolve(process.cwd(), 'jest.config.js');
+
+    if (fs.existsSync(jestConfigPath)) {
+        return (await import(jestConfigPath)).default;
+    }
+
+    if (configs.appPackage.jest) {
+        return configs.appPackage.jest;
+    }
+
+    return {};
+}
+
+async function getPresetConfig(presetPath?: string) {
+    if (!presetPath) {
+        return {};
+    }
+    const rootDir = process.cwd();
+
+    const normalizedPresetPath = replaceRootDirInPath(rootDir, presetPath);
+    const presetModule = Resolver.findNodeModule(
+        normalizedPresetPath.startsWith('.')
+            ? normalizedPresetPath
+            : path.join(normalizedPresetPath, PRESET_NAME),
+        {
+            basedir: rootDir,
+            extensions: PRESET_EXTENSIONS,
+        },
+    );
+
+    if (!presetModule) {
+        throw new Error(`Cannot find module '${normalizedPresetPath}'`);
+    }
+
+    const { preset: subPreset, ...preset } = (await import(presetModule)).default;
+
+    if (subPreset) {
+        console.warn(`Jest can't handle preset chaining. Preset "${subPreset}" will be ignored.`);
+    }
+
+    return preset;
+}

packages/arui-scripts/src/commands/test/index.ts

@@ -1,17 +1,12 @@
-// TODO: remove eslint-disable and eslint-disable-next-line
-/* eslint-disable @typescript-eslint/no-var-requires */
+import * as jestRunner from 'jest';
+
+import { getJestConfig } from './get-config';
+
 // Do this as the first thing so that any code reading it knows the right env.
 process.env.BABEL_ENV = 'test';
 process.env.NODE_ENV = 'test';
 process.env.PUBLIC_URL = '';
 
-// eslint-disable-next-line @typescript-eslint/ban-ts-comment
-// @ts-ignore
-const jestRunner = require('jest');
-// eslint-disable-next-line @typescript-eslint/ban-ts-comment
-// @ts-ignore
-const jestConfig = require('../../configs/jest');
-
 // Makes the script crash on unhandled rejections instead of silently
 // ignoring them. In the future, promise rejections that are not handled will
 // terminate the Node.js process with a non-zero exit code.
@@ -25,6 +20,15 @@ process.on('unhandledRejection', (err) => {
 // @ts-ignore
 const argv = process.argv.slice(3);
 
-argv.push('--config', JSON.stringify(jestConfig));
+const runJest = async () => {
+    const jestConfig = await getJestConfig();
+
+    argv.push('--config', JSON.stringify(jestConfig));
 
-jestRunner.run(argv);
+    jestRunner.run(argv);
+};
+
+runJest().catch((error) => {
+    console.error('Error running Jest:', error);
+    process.exit(1);
+});