view data tests

core/eslint-rules/no-index-files.test.js

@@ -0,0 +1,131 @@
+const { RuleTester } = require('eslint');
+const rule = require('./no-index-files');
+
+const ruleTester = new RuleTester({
+  parser: require.resolve('@typescript-eslint/parser'),
+  parserOptions: {
+    ecmaVersion: 2020,
+    sourceType: 'module',
+    ecmaFeatures: {
+      jsx: false,
+    },
+  },
+});
+
+ruleTester.run('no-index-files', rule, {
+  valid: [
+    // Regular file in domain
+    {
+      filename: '/path/to/core/domain/user/User.ts',
+      code: "export class User {}",
+    },
+    // Regular file in application
+    {
+      filename: '/path/to/core/application/user/CreateUser.ts',
+      code: "export class CreateUser {}",
+    },
+    // Regular file in shared
+    {
+      filename: '/path/to/core/shared/ValueObject.ts',
+      code: "export class ValueObject {}",
+    },
+    // Regular file in ports
+    {
+      filename: '/path/to/core/ports/UserRepository.ts',
+      code: "export interface UserRepository {}",
+    },
+    // File with index in the middle of the path
+    {
+      filename: '/path/to/core/domain/user/index/User.ts',
+      code: "export class User {}",
+    },
+    // File with index in the name but not at the end
+    {
+      filename: '/path/to/core/domain/user/indexHelper.ts',
+      code: "export class IndexHelper {}",
+    },
+    // Root index.ts is allowed
+    {
+      filename: '/path/to/core/index.ts',
+      code: "export * from './domain';",
+    },
+    // File with index.ts in the middle of the path
+    {
+      filename: '/path/to/core/domain/index/User.ts',
+      code: "export class User {}",
+    },
+  ],
+
+  invalid: [
+    // index.ts in domain
+    {
+      filename: '/path/to/core/domain/user/index.ts',
+      code: "export * from './User';",
+      errors: [
+        {
+          messageId: 'indexFile',
+        },
+      ],
+    },
+    // index.ts in application
+    {
+      filename: '/path/to/core/application/user/index.ts',
+      code: "export * from './CreateUser';",
+      errors: [
+        {
+          messageId: 'indexFile',
+        },
+      ],
+    },
+    // index.ts in shared
+    {
+      filename: '/path/to/core/shared/index.ts',
+      code: "export * from './ValueObject';",
+      errors: [
+        {
+          messageId: 'indexFile',
+        },
+      ],
+    },
+    // index.ts in ports
+    {
+      filename: '/path/to/core/ports/index.ts',
+      code: "export * from './UserRepository';",
+      errors: [
+        {
+          messageId: 'indexFile',
+        },
+      ],
+    },
+    // index.ts with Windows path separator
+    {
+      filename: 'C:\\path\\to\\core\\domain\\user\\index.ts',
+      code: "export * from './User';",
+      errors: [
+        {
+          messageId: 'indexFile',
+        },
+      ],
+    },
+    // index.ts at the start of path
+    {
+      filename: 'index.ts',
+      code: "export * from './domain';",
+      errors: [
+        {
+          messageId: 'indexFile',
+        },
+      ],
+    },
+    // index.ts in nested directory
+    {
+      filename: '/path/to/core/domain/user/profile/index.ts',
+      code: "export * from './Profile';",
+      errors: [
+        {
+          messageId: 'indexFile',
+        },
+      ],
+    },
+  ],
+});