Fix test configuration

Author: SleeplessByte

jest.config.js

@@ -1,8 +1,22 @@
 module.exports = {
   verbose: true,
-  modulePathIgnorePatterns: ['package.json'],
+  projects: ['<rootDir>'],
+  testMatch: [
+    '**/__tests__/**/*.[jt]s?(x)',
+    '**/test/**/*.[jt]s?(x)',
+    '**/?(*.)+(spec|test).[jt]s?(x)',
+  ],
+  testPathIgnorePatterns: [
+    '/(?:production_)?node_modules/',
+    '.d.ts$',
+    '<rootDir>/test/fixtures',
+    '<rootDir>/test/helpers',
+    '__mocks__',
+  ],
   transform: {
-    '^.+\\.[t|j]sx?$': 'babel-jest',
+    '^.+\\.[jt]sx?$': 'babel-jest',
+  },
+  moduleNameMapper: {
+    '^(\\.\\/.+)\\.js$': '$1',
   },
-  reporters: [],
 };