separate tsconfig for jest tests

jest.config.ts

@@ -26,6 +26,16 @@ const config: JestConfigWithTsJest = {
     '<rootDir>/jest/setup.ts',
   ],
   testEnvironment: 'jsdom',
+  transform: {
+    // '^.+\\.[tj]sx?$' to process js/ts with `ts-jest`
+    // '^.+\\.m?[tj]sx?$' to process js/ts/mjs/mts with `ts-jest`
+    '^.+\\.tsx?$': [
+      'ts-jest',
+      {
+        tsconfig: 'tsconfig.jest.json',
+      },
+    ],
+  },
 };
 
 export default config;

tsconfig.jest.json

@@ -0,0 +1,21 @@
+{
+  "compilerOptions": {
+    "target": "es6",
+    "lib": ["dom", "dom.iterable", "esnext"],
+    "allowJs": true,
+    "skipLibCheck": true,
+    "strict": true,
+    "forceConsistentCasingInFileNames": true,
+    "noEmit": true,
+    "esModuleInterop": true,
+    "module": "esnext",
+    "moduleResolution": "node",
+    "resolveJsonModule": true,
+    "isolatedModules": true,
+    "jsx": "react",
+    "incremental": true,
+    "baseUrl": ".",
+  },
+  "include": ["next-env.d.ts", "**/*.ts", "**/*.tsx", "decs.d.ts", "global.d.ts"],
+  "exclude": ["node_modules", "node_modules_linux"],
+}

tsconfig.json

@@ -12,7 +12,7 @@
     "moduleResolution": "node",
     "resolveJsonModule": true,
     "isolatedModules": true,
-    "jsx": "react",
+    "jsx": "preserve",
     "incremental": true,
     "baseUrl": ".",
   },