feat: add jest tsconfig paths alias support

Author: Evgeny Zakharov

jest.config.js

@@ -1,6 +1,10 @@
+const { pathsToModuleNameMapper } = require('ts-jest')
+const { compilerOptions } = require('./tsconfig.json')
+
 module.exports = {
   preset: 'ts-jest',
   testEnvironment: 'node',
   passWithNoTests: true,
   snapshotSerializers: ['jest-serializer-path'],
+  moduleNameMapper: pathsToModuleNameMapper(compilerOptions.paths || {}),
 }

tsconfig.json

@@ -6,9 +6,7 @@
     "forceConsistentCasingInFileNames": true,
     "isolatedModules": true,
     "experimentalDecorators": true,
-    "lib": [
-      "esnext"
-    ],
+    "lib": ["esnext"],
     "module": "esnext",
     "moduleResolution": "node",
     "noEmit": true,
@@ -19,15 +17,8 @@
     "declaration": true,
     "declarationDir": "./dist",
     "outDir": "./dist",
-    "typeRoots": [
-      "./node_modules/@types"
-    ]
+    "typeRoots": ["./node_modules/@types"]
   },
-  "exclude": [
-    "./node_modules",
-    "./dist",
-  ],
-  "include": [
-    "src"
-  ]
-}
+  "exclude": ["./node_modules", "./dist"],
+  "include": ["src"]
+}