feat: add jest tests

.github/workflows/node.js.yml

@@ -0,0 +1,21 @@
+name: Node.js CI
+
+on:
+  push:
+    branches: ["main"]
+  pull_request:
+    branches: ["main"]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+      - name: Use Node.js 18
+        uses: actions/setup-node@v3
+        with:
+          node-version: 18.x
+          cache: "npm"
+      - run: npm ci
+      - run: npm test

.gitignore

@@ -41,3 +41,4 @@ yarn-error.log*
 # typescript
 *.tsbuildinfo
 .idea
+.swc

__tests__/extract-array.test.ts

@@ -0,0 +1,19 @@
+import { extractArray } from "../src/utils/chain";
+
+describe("Strings should be extracted from arrays correctly", () => {
+  it("simple", () => {
+    const modelResult = `
+  \`\`\`json
+[
+  "Research and implement natural language processing techniques to improve task creation accuracy.",
+  "Develop a machine learning model to predict the most relevant tasks for users based on their past activity.",
+  "Integrate with external tools and services to provide users with additional features such as task prioritization and scheduling."
+]
+\`\`\`
+`;
+    expect(extractArray(modelResult).length).toBe(3);
+    expect(extractArray(modelResult).at(2)).toBe(
+      "Integrate with external tools and services to provide users with additional features such as task prioritization and scheduling."
+    );
+  });
+});

jest.config.cjs

@@ -0,0 +1,19 @@
+const nextJest = require("next/jest");
+
+const createJestConfig = nextJest({
+  // Provide the path to your Next.js app to load next.config.js and .env files in your test environment
+  dir: "./",
+});
+
+// Add any custom config to be passed to Jest
+/** @type {import('jest').Config} */
+const customJestConfig = {
+  // Add more setup options before each test is run
+  // setupFilesAfterEnv: ['<rootDir>/jest.setup.js'],
+  // if using TypeScript with a baseUrl set to the root directory then you need the below for alias' to work
+  moduleDirectories: ["node_modules", "<rootDir>/"],
+  testEnvironment: "jest-environment-jsdom",
+};
+
+// createJestConfig is exported this way to ensure that next/jest can load the Next.js config which is async
+module.exports = createJestConfig(customJestConfig);