chore: share test config among packages (#1170)

Author: steveluscher

packages/library/internal/jest/jest-dev.config.ts

@@ -38,15 +38,15 @@
     "scripts": {
         "compile:js": "tsup --config build-scripts/tsup.config.ts",
         "compile:typedefs": "tsc -p ./tsconfig.declarations.json",
-        "dev": "jest -c ./internal/jest/jest-dev.config.ts --watch",
-        "test:lint": "jest -c ./internal/jest/jest-lint.config.ts --silent",
-        "test:prettier": "jest -c ./internal/jest/jest-prettier.config.ts --silent",
+        "dev": "jest -c node_modules/test-config/jest-dev.config.ts --rootDir . --watch",
+        "test:lint": "jest -c node_modules/test-config/jest-lint.config.ts --rootDir . --silent",
+        "test:prettier": "jest -c node_modules/test-config/jest-prettier.config.ts --rootDir . --silent",
         "test:treeshakability:browser": "agadoo dist/index.browser.js",
         "test:treeshakability:native": "agadoo dist/index.node.js",
         "test:treeshakability:node": "agadoo dist/index.native.js",
         "test:typecheck": "tsc --noEmit",
-        "test:unit:browser": "jest -c ./internal/jest/jest-unit.config.browser.ts --silent",
-        "test:unit:node": "jest -c ./internal/jest/jest-unit.config.node.ts --silent"
+        "test:unit:browser": "jest -c node_modules/test-config/jest-unit.config.browser.ts --rootDir . --silent",
+        "test:unit:node": "jest -c node_modules/test-config/jest-unit.config.node.ts --rootDir . --silent"
     },
     "author": "Solana Labs Maintainers <[email protected]>",
     "license": "MIT",
@@ -80,6 +80,7 @@
         "jest-runner-prettier": "^1.0.0",
         "postcss": "^8.4.12",
         "prettier": "^2.7.1",
+        "test-config": "workspace:*",
         "ts-node": "^10.9.1",
         "tsconfig": "workspace:*",
         "tsup": "6.5.0",

packages/library/package.json

@@ -0,0 +1,13 @@
+import type { Config } from 'jest';
+import path from 'path';
+
+const config: Config = {
+    projects: [
+        path.resolve(__dirname, 'jest-lint.config.ts'),
+        path.resolve(__dirname, 'jest-prettier.config.ts'),
+        path.resolve(__dirname, 'jest-unit.config.browser.ts'),
+        path.resolve(__dirname, 'jest-unit.config.node.ts'),
+    ],
+};
+
+export default config;

packages/test-config/jest-dev.config.ts

@@ -2,9 +2,8 @@ import type { Config } from 'jest';
 
 const config: Config = {
     displayName: 'ESLint',
-    rootDir: '../../',
     runner: 'eslint',
-    testMatch: ['<rootDir>src/**/*.ts', '<rootDir>internal/**'],
+    testMatch: ['<rootDir>src/**/*.ts'],
 };
 
 export default config;

packages/library/internal/jest/jest-lint.config.ts renamed to packages/test-config/jest-lint.config.ts

@@ -3,9 +3,8 @@ import type { Config } from 'jest';
 const config: Config = {
     displayName: 'Prettier',
     moduleFileExtensions: ['js', 'ts', 'json', 'md'],
-    rootDir: '../../',
     runner: 'prettier',
-    testMatch: ['<rootDir>README.md', '<rootDir>internal/**', '<rootDir>src/**', '<rootDir>*'],
+    testMatch: ['<rootDir>/src/**', '<rootDir>*'],
 };
 
 export default config;

packages/library/internal/jest/jest-prettier.config.ts renamed to packages/test-config/jest-prettier.config.ts

@@ -4,8 +4,7 @@ const config: Config = {
     globals: {
         __DEV__: false,
     },
-    rootDir: '../../',
-    roots: ['<rootDir>src/'],
+    roots: ['<rootDir>/src/'],
     transform: {
         '^.+\\.(ts|js)$': [
             '@swc/jest',

packages/library/internal/jest/jest-unit.config.browser.ts renamed to packages/test-config/jest-unit.config.browser.ts

@@ -0,0 +1,22 @@
+{
+    "name": "test-config",
+    "version": "0.0.0",
+    "private": true,
+    "files": [
+        "jest-dev.config.ts",
+        "jest-lint.config.ts",
+        "jest-prettier.config.ts",
+        "jest-unit.config.browser.ts",
+        "jest-unit.config.node.ts"
+    ],
+    "peerDependencies": {
+        "jest": "^29.3.1",
+        "jest-environment-jsdom": "^29.3.1",
+        "jest-runner-eslint": "^1.1.0",
+        "jest-runner-prettier": "^1.0.0"
+    },
+    "devDependencies": {
+        "jest": "^29.3.1",
+        "tsconfig": "workspace:*"
+    }
+}

packages/library/internal/jest/jest-unit.config.common.ts renamed to packages/test-config/jest-unit.config.common.ts

@@ -0,0 +1,5 @@
+{
+    "$schema": "https://json.schemastore.org/tsconfig",
+    "display": "Test Config",
+    "extends": "tsconfig/base.json"
+}