feat: add React component name, component stack, and file w/line #

.github/workflows/pr-validation.yml

@@ -0,0 +1,29 @@
+name: PR Validation
+
+on:
+  pull_request:
+    branches: [main]
+
+jobs:
+  validate:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Type check
+        run: npm run typecheck
+
+      - name: Build
+        run: npm run build
+
+      - name: Test
+        run: npm run test

jest.config.cjs

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+/** @type {import('jest').Config} */
+const config = {
+  preset: 'ts-jest',
+  testEnvironment: 'node',
+  roots: ['<rootDir>/src'],
+  testMatch: ['**/__tests__/**/*.test.ts'],
+  moduleNameMapper: {
+    '^@/(.*)$': '<rootDir>/src/$1',
+  },
+  setupFilesAfterEnv: ['<rootDir>/jest.setup.ts'],
+  transform: {
+    '^.+\\.tsx?$': [
+      'ts-jest',
+      {
+        useESM: true,
+      },
+    ],
+  },
+  moduleFileExtensions: ['ts', 'tsx', 'js', 'jsx', 'json'],
+  collectCoverageFrom: [
+    'src/exporter/**/*.ts',
+    'src/prompts/**/*.ts',
+    '!src/**/*.d.ts',
+  ],
+};
+
+module.exports = config;

jest.setup.ts

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+// Jest setup file for ClankerContext tests
+// This file runs before each test suite
+
+import type { MatcherFunction } from 'expect';
+
+const toHaveNoUnrenderedTokens: MatcherFunction<[]> = function (received: unknown) {
+  if (typeof received !== 'string') {
+    return {
+      message: () => `Expected a string but received ${typeof received}`,
+      pass: false,
+    };
+  }
+
+  const tokenRegex = /{{[a-zA-Z0-9_.#/]+}}/g;
+  const matches = received.match(tokenRegex);
+
+  if (matches && matches.length > 0) {
+    return {
+      message: () =>
+        `Expected no unrendered tokens but found: ${matches.join(', ')}`,
+      pass: false,
+    };
+  }
+
+  return {
+    message: () => 'Expected unrendered tokens but found none',
+    pass: true,
+  };
+};
+
+expect.extend({
+  toHaveNoUnrenderedTokens,
+});
+
+// Type augmentation for custom matchers
+declare global {
+  namespace jest {
+    interface Matchers<R> {
+      toHaveNoUnrenderedTokens(): R;
+    }
+  }
+}
+
+export {};