test(next-drupal): add tooling to test code coverage

Fixes #609

package.json

@@ -25,7 +25,7 @@
     "sync:starters": "./scripts/sync-starters.sh \"starters/*\"",
     "seed": "NUM_NODES=200 node ./scripts/seed",
     "cy:open": "turbo run cy:open --parallel",
-    "test": "jest",
+    "test": "yarn workspace next-drupal test && yarn workspace next-drupal-query test",
     "pretest": "yarn format:check && yarn lint",
     "test:e2e": "turbo run test:e2e --parallel",
     "test:e2e:ci": "turbo run test:e2e:ci --parallel"

packages/next-drupal-query/jest.config.cjs

@@ -0,0 +1,24 @@
+/** @type {import('ts-jest/dist/types').InitialOptionsTsJest} */
+module.exports = {
+  preset: "ts-jest/presets/js-with-ts",
+  testEnvironment: "node",
+  setupFiles: ["dotenv/config"],
+  setupFilesAfterEnv: ["<rootDir>/jest.setup.ts"],
+  testMatch: ["**/tests/**/*.test.{ts,tsx}"],
+  globals: {
+    "ts-jest": {
+      isolatedModules: true,
+    },
+  },
+  coverageProvider: "v8",
+  collectCoverage: true,
+  collectCoverageFrom: ["./src/**"],
+  coverageThreshold: {
+    global: {
+      statements: 85.11,
+      branches: 58,
+      functions: 70,
+      lines: 85.11,
+    },
+  },
+}

packages/next-drupal-query/package.json

@@ -19,7 +19,7 @@
   "scripts": {
     "prepare": "microbundle --no-compress --jsx React.createElement --format modern,cjs",
     "dev": "microbundle watch --no-compress --jsx React.createElement --format modern,cjs",
-    "test": "jest"
+    "test": "jest --verbose"
   },
   "keywords": [
     "next.js",

packages/next-drupal/jest.config.cjs

@@ -0,0 +1,25 @@
+/** @type {import('ts-jest/dist/types').InitialOptionsTsJest} */
+module.exports = {
+  preset: "ts-jest",
+  testEnvironment: "node",
+  setupFiles: ["dotenv/config"],
+  setupFilesAfterEnv: ["<rootDir>/jest.setup.ts"],
+  testMatch: ["**/tests/**/*.test.{ts,tsx}"],
+  globals: {
+    "ts-jest": {
+      isolatedModules: true,
+    },
+  },
+  coverageProvider: "v8",
+  collectCoverage: true,
+  collectCoverageFrom: ["./src/**"],
+  coveragePathIgnorePatterns: ["./src/get-*"],
+  coverageThreshold: {
+    global: {
+      statements: 58.91,
+      branches: 74.61,
+      functions: 77.77,
+      lines: 58.91,
+    },
+  },
+}

packages/next-drupal/jest.setup.ts

@@ -0,0 +1 @@
+import "isomorphic-fetch"

packages/next-drupal/package.json

@@ -19,7 +19,7 @@
   "scripts": {
     "prepare": "microbundle --no-compress --jsx React.createElement --format modern,cjs",
     "dev": "microbundle watch --no-compress --jsx React.createElement --format modern,cjs",
-    "test": "jest"
+    "test": "jest --verbose"
   },
   "keywords": [
     "next.js",