feat(misc): replace ts-jest transformer with @swc/jest for ts solution setup (#29763)

## Current Behavior

## Expected Behavior

## Related Issue(s)

Fixes #

packages/detox/src/generators/application/application.spec.ts

@@ -252,11 +252,8 @@ describe('detox application generator', () => {
       expect(tree.exists('my-dir/my-app-e2e/.detoxrc.json')).toBeTruthy();
       expect(tree.exists('my-dir/my-app-e2e/src/app.spec.ts')).toBeTruthy();
 
-      const detoxrc = tree.read('my-dir/my-app-e2e/.detoxrc.json').toString();
+      const detoxrcJson = readJson(tree, 'my-dir/my-app-e2e/.detoxrc.json');
-      // Strip trailing commas
+      expect(detoxrcJson.testRunner.args.config).toEqual('./jest.config.json');
-      const detoxrcJson = JSON.parse(
-        detoxrc.replace(/(?<=(true|false|null|["\d}\]])\s*),(?=\s*[}\]])/g, '')
-      );
       const appsDetoxrcJson = detoxrcJson['apps'];
       expect(appsDetoxrcJson).toEqual({
         'android.debug': {
@@ -288,6 +285,32 @@ describe('detox application generator', () => {
           type: 'ios.app',
         },
       });
+      expect(tree.read('my-dir/my-app-e2e/jest.config.json', 'utf-8'))
+        .toMatchInlineSnapshot(`
+        "{
+          "preset": "../../jest.preset",
+          "rootDir": ".",
+          "testMatch": [
+            "<rootDir>/src/**/*.test.ts?(x)",
+            "<rootDir>/src/**/*.spec.ts?(x)"
+          ],
+          "testTimeout": 120000,
+          "maxWorkers": 1,
+          "globalSetup": "detox/runners/jest/globalSetup",
+          "globalTeardown": "detox/runners/jest/globalTeardown",
+          "reporters": ["detox/runners/jest/reporter"],
+          "testEnvironment": "detox/runners/jest/testEnvironment",
+          "verbose": true,
+          "setupFilesAfterEnv": ["<rootDir>/test-setup.ts"],
+          "transform": {
+            "^.+\\\\.(ts|js|html)$": [
+              "ts-jest",
+              { "tsconfig": "<rootDir>/tsconfig.e2e.json" }
+            ]
+          }
+        }
+        "
+      `);
     });
 
     it('should update configuration', async () => {
@@ -558,5 +581,84 @@ describe('detox application generator', () => {
         "
       `);
     });
+
+    it('should generate jest test config with @swc/jest', async () => {
+      writeJson(tree, 'apps/my-app/package.json', {
+        name: 'my-app',
+      });
+
+      await detoxApplicationGenerator(tree, {
+        e2eDirectory: 'apps/my-app-e2e',
+        appProject: 'my-app',
+        linter: Linter.None,
+        framework: 'react-native',
+        addPlugin: true,
+        skipFormat: true,
+      });
+
+      expect(tree.exists('apps/my-app-e2e/test-setup.ts')).toBeTruthy();
+      const detoxrc = readJson(tree, 'apps/my-app-e2e/.detoxrc.json');
+      expect(detoxrc.testRunner.args.config).toEqual('./jest.config.ts');
+      expect(tree.read('apps/my-app-e2e/jest.config.ts', 'utf-8'))
+        .toMatchInlineSnapshot(`
+        "/* eslint-disable */
+        import { readFileSync } from 'fs';
+
+        // Reading the SWC compilation config for the spec files
+        const swcJestConfig = JSON.parse(
+          readFileSync(\`\${__dirname}/.spec.swcrc\`, 'utf-8')
+        );
+
+        // Disable .swcrc look-up by SWC core because we're passing in swcJestConfig ourselves
+        swcJestConfig.swcrc = false;
+
+        export default {
+          preset: "../../jest.preset",
+          rootDir: ".",
+          testMatch: [
+            "<rootDir>/src/**/*.test.ts?(x)",
+            "<rootDir>/src/**/*.spec.ts?(x)"
+          ],
+          testTimeout: 120000,
+          maxWorkers: 1,
+          globalSetup: "detox/runners/jest/globalSetup",
+          globalTeardown: "detox/runners/jest/globalTeardown",
+          reporters: ["detox/runners/jest/reporter"],
+          testEnvironment: "detox/runners/jest/testEnvironment",
+          verbose: true,
+          setupFilesAfterEnv: ["<rootDir>/test-setup.ts"],
+          transform: {
+            "^.+\\\\.(ts|js|html)$": ['@swc/jest', swcJestConfig]
+          }
+        };
+        "
+      `);
+      expect(tree.read('apps/my-app-e2e/.spec.swcrc', 'utf-8'))
+        .toMatchInlineSnapshot(`
+          "{
+            "jsc": {
+              "target": "es2017",
+              "parser": {
+                "syntax": "typescript",
+                "decorators": true,
+                "dynamicImport": true
+              },
+              "transform": {
+                "decoratorMetadata": true,
+                "legacyDecorator": true
+              },
+              "keepClassNames": true,
+              "externalHelpers": true,
+              "loose": true
+            },
+            "module": {
+              "type": "es6"
+            },
+            "sourceMaps": true,
+            "exclude": []
+          }
+          "
+        `);
+    });
   });
 });

packages/detox/src/generators/application/files/app/.detoxrc.json.template

@@ -2,7 +2,7 @@
   "testRunner": {
     "args": {
       "$0": "jest",
-      "config": "./jest.config.json"
+      "config": "./<%= jestConfigFileName %>"
     },
     "jest": {
       "setupTimeout": 120000

packages/detox/src/generators/application/files/non-ts-solution/jest.config.json.template

@@ -19,5 +19,4 @@
       { "tsconfig": "<rootDir>/tsconfig.e2e.json" }
     ]
   }
-  
 }

packages/detox/src/generators/application/files/ts-solution/jest.config.ts.template

@@ -0,0 +1,30 @@
+/* eslint-disable */
+<% if (js) { %>const { readFileSync } = require('fs')<% } else { %>import { readFileSync } from 'fs';<% } %>
+
+// Reading the SWC compilation config for the spec files
+const swcJestConfig = JSON.parse(
+  readFileSync(`${__dirname}/.spec.swcrc`, 'utf-8')
+);
+
+// Disable .swcrc look-up by SWC core because we're passing in swcJestConfig ourselves
+swcJestConfig.swcrc = false;
+
+<% if (js) { %>module.exports =<% } else { %>export default<% } %> {
+  preset: "<%= offsetFromRoot %>jest.preset",
+  rootDir: ".",
+  testMatch: [
+    "<rootDir>/src/**/*.test.ts?(x)",
+    "<rootDir>/src/**/*.spec.ts?(x)"
+  ],
+  testTimeout: 120000,
+  maxWorkers: 1,
+  globalSetup: "detox/runners/jest/globalSetup",
+  globalTeardown: "detox/runners/jest/globalTeardown",
+  reporters: ["detox/runners/jest/reporter"],
+  testEnvironment: "detox/runners/jest/testEnvironment",
+  verbose: true,
+  setupFilesAfterEnv: ["<rootDir>/test-setup.ts"],
+  transform: {
+    "^.+\\.(ts|js|html)$": ['@swc/jest', swcJestConfig]
+  }
+};

packages/detox/src/generators/application/lib/create-files.spec.ts

@@ -28,6 +28,7 @@ describe('Create Files', () => {
     expect(tree.exists('apps/my-app-e2e/.detoxrc.json')).toBeTruthy();
     expect(tree.exists('apps/my-app-e2e/tsconfig.json')).toBeTruthy();
     expect(tree.exists('apps/my-app-e2e/tsconfig.e2e.json')).toBeTruthy();
+    expect(tree.exists('apps/my-app-e2e/jest.config.json')).toBeTruthy();
     expect(tree.exists('apps/my-app-e2e/test-setup.ts')).toBeTruthy();
   });
 });

packages/detox/src/generators/application/lib/create-files.ts

@@ -1,14 +1,15 @@
 import {
+  offsetFromRoot as _offsetFromRoot,
   detectPackageManager,
   generateFiles,
   getPackageManagerCommand,
-  offsetFromRoot as _offsetFromRoot,
+  joinPathFragments,
   toJS,
   Tree,
   writeJson,
-  joinPathFragments,
 } from '@nx/devkit';
 import { getRelativePathToRootTsConfig } from '@nx/js';
+import { addSwcTestConfig } from '@nx/js/src/utils/swc/add-swc-config';
 import { join } from 'path';
 import { NormalizedSchema } from './normalize-options';
 
@@ -23,8 +24,22 @@ export function createFiles(host: Tree, options: NormalizedSchema) {
     exec: getPackageManagerCommand(detectPackageManager(host.root)).exec,
     offsetFromRoot,
     rootTsConfigPath,
+    jestConfigFileName: options.isUsingTsSolutionConfig
+      ? 'jest.config.ts'
+      : 'jest.config.json',
   });
   if (options.isUsingTsSolutionConfig) {
+    addSwcTestConfig(host, options.e2eProjectRoot, 'es6');
+    generateFiles(
+      host,
+      join(__dirname, '../files/ts-solution'),
+      options.e2eProjectRoot,
+      {
+        ...options,
+        exec: getPackageManagerCommand(detectPackageManager(host.root)).exec,
+        offsetFromRoot,
+      }
+    );
     writeJson(
       host,
       joinPathFragments(options.e2eProjectRoot, 'tsconfig.json'),

packages/detox/src/generators/application/lib/normalize-options.spec.ts

@@ -39,6 +39,7 @@ describe('Normalize Options', () => {
       appRoot: 'apps/my-app',
       isUsingTsSolutionConfig: false,
       linter: Linter.EsLint,
+      js: false,
     });
   });
 
@@ -68,6 +69,7 @@ describe('Normalize Options', () => {
       e2eProjectRoot: 'apps/my-app-e2e',
       framework: 'react-native',
       isUsingTsSolutionConfig: false,
+      js: false,
     });
   });
 
@@ -97,6 +99,7 @@ describe('Normalize Options', () => {
       e2eProjectName: 'directory-my-app-e2e',
       framework: 'react-native',
       isUsingTsSolutionConfig: false,
+      js: false,
     });
   });
 });

packages/detox/src/generators/application/lib/normalize-options.ts

@@ -48,5 +48,6 @@ export async function normalizeOptions(
     e2eProjectName,
     e2eProjectRoot,
     isUsingTsSolutionConfig: isUsingTsSolutionSetup(host),
+    js: options.js ?? false,
   };
 }

packages/node/src/generators/e2e-project/e2e-project.spec.ts

@@ -45,6 +45,43 @@ describe('e2eProjectGenerator', () => {
     expect(tree.exists(`e2e/src/server/server.spec.ts`)).toBeTruthy();
   });
 
+  it('should generate jest test config with ts-jest for server app', async () => {
+    await applicationGenerator(tree, {
+      directory: 'api',
+      framework: 'none',
+      e2eTestRunner: 'none',
+      addPlugin: true,
+    });
+    await e2eProjectGenerator(tree, {
+      projectType: 'server',
+      project: 'api',
+      addPlugin: true,
+    });
+
+    expect(tree.read('api-e2e/jest.config.ts', 'utf-8')).toMatchInlineSnapshot(`
+      "export default {
+        displayName: 'api-e2e',
+        preset: '../jest.preset.js',
+        globalSetup: '<rootDir>/src/support/global-setup.ts',
+        globalTeardown: '<rootDir>/src/support/global-teardown.ts',
+        setupFiles: ['<rootDir>/src/support/test-setup.ts'],
+        testEnvironment: 'node',
+        transform: {
+          '^.+\\\\.[tj]s$': [
+            'ts-jest',
+            {
+              tsconfig: '<rootDir>/tsconfig.spec.json',
+            },
+          ],
+        },
+        moduleFileExtensions: ['ts', 'js', 'html'],
+        coverageDirectory: '../coverage/api-e2e',
+      };
+      "
+    `);
+    expect(tree.exists('api-e2e/.spec.swcrc')).toBeFalsy();
+  });
+
   it('should generate cli project', async () => {
     await applicationGenerator(tree, {
       directory: 'api',
@@ -75,6 +112,41 @@ describe('e2eProjectGenerator', () => {
     `);
   });
 
+  it('should generate jest test config with ts-jest for cli project', async () => {
+    await applicationGenerator(tree, {
+      directory: 'cli',
+      framework: 'none',
+      e2eTestRunner: 'none',
+      addPlugin: true,
+    });
+    await e2eProjectGenerator(tree, {
+      projectType: 'cli',
+      project: 'cli',
+      addPlugin: true,
+    });
+
+    expect(tree.read('cli-e2e/jest.config.ts', 'utf-8')).toMatchInlineSnapshot(`
+      "export default {
+        displayName: 'cli-e2e',
+        preset: '../jest.preset.js',
+        setupFiles: ['<rootDir>/src/test-setup.ts'],
+        testEnvironment: 'node',
+        transform: {
+          '^.+\\\\.[tj]s$': [
+            'ts-jest',
+            {
+              tsconfig: '<rootDir>/tsconfig.spec.json',
+            },
+          ],
+        },
+        moduleFileExtensions: ['ts', 'js', 'html'],
+        coverageDirectory: '../coverage/cli-e2e',
+      };
+      "
+    `);
+    expect(tree.exists('cli-e2e/.spec.swcrc')).toBeFalsy();
+  });
+
   describe('TS solution setup', () => {
     beforeEach(() => {
       tree = createTreeWithEmptyWorkspace();
@@ -118,28 +190,6 @@ describe('e2eProjectGenerator', () => {
           },
         ]
       `);
-      expect(tree.read('api-e2e/jest.config.ts', 'utf-8'))
-        .toMatchInlineSnapshot(`
-        "export default {
-          displayName: 'api-e2e',
-          preset: '../jest.preset.js',
-          globalSetup: '<rootDir>/src/support/global-setup.ts',
-          globalTeardown: '<rootDir>/src/support/global-teardown.ts',
-          setupFiles: ['<rootDir>/src/support/test-setup.ts'],
-          testEnvironment: 'node',
-          transform: {
-            '^.+\\\\.[tj]s$': [
-              'ts-jest',
-              {
-                tsconfig: '<rootDir>/tsconfig.json',
-              },
-            ],
-          },
-          moduleFileExtensions: ['ts', 'js', 'html'],
-          coverageDirectory: '../coverage/api-e2e',
-        };
-        "
-      `);
       expect(readJson(tree, 'api-e2e/tsconfig.json')).toMatchInlineSnapshot(`
         {
           "compilerOptions": {
@@ -157,5 +207,139 @@ describe('e2eProjectGenerator', () => {
         }
       `);
     });
+
+    it('should generate jest test config with @swc/jest for server app', async () => {
+      await applicationGenerator(tree, {
+        directory: 'api',
+        framework: 'none',
+        e2eTestRunner: 'none',
+        addPlugin: true,
+      });
+      await e2eProjectGenerator(tree, {
+        projectType: 'server',
+        project: 'api',
+        addPlugin: true,
+      });
+
+      expect(tree.read('api-e2e/jest.config.ts', 'utf-8'))
+        .toMatchInlineSnapshot(`
+        "/* eslint-disable */
+        import { readFileSync } from 'fs';
+
+        // Reading the SWC compilation config for the spec files
+        const swcJestConfig = JSON.parse(
+          readFileSync(\`\${__dirname}/.spec.swcrc\`, 'utf-8')
+        );
+
+        // Disable .swcrc look-up by SWC core because we're passing in swcJestConfig ourselves
+        swcJestConfig.swcrc = false;
+
+        export default {
+          displayName: 'api-e2e',
+          preset: '../jest.preset.js',
+          globalSetup: '<rootDir>/src/support/global-setup.ts',
+          globalTeardown: '<rootDir>/src/support/global-teardown.ts',
+          setupFiles: ['<rootDir>/src/support/test-setup.ts'],
+          testEnvironment: 'node',
+          transform: {
+            '^.+\\\\.[tj]s$': ['@swc/jest', swcJestConfig],
+          },
+          moduleFileExtensions: ['ts', 'js', 'html'],
+          coverageDirectory: 'test-output/jest/coverage',
+        };
+        "
+      `);
+      expect(tree.read('api-e2e/.spec.swcrc', 'utf-8')).toMatchInlineSnapshot(`
+        "{
+          "jsc": {
+            "target": "es2017",
+            "parser": {
+              "syntax": "typescript",
+              "decorators": true,
+              "dynamicImport": true
+            },
+            "transform": {
+              "decoratorMetadata": true,
+              "legacyDecorator": true
+            },
+            "keepClassNames": true,
+            "externalHelpers": true,
+            "loose": true
+          },
+          "module": {
+            "type": "es6"
+          },
+          "sourceMaps": true,
+          "exclude": []
+        }
+        "
+      `);
+    });
+
+    it('should generate jest test config with @swc/jest for cli project', async () => {
+      await applicationGenerator(tree, {
+        directory: 'cli',
+        framework: 'none',
+        e2eTestRunner: 'none',
+        addPlugin: true,
+      });
+      await e2eProjectGenerator(tree, {
+        projectType: 'cli',
+        project: 'cli',
+        addPlugin: true,
+      });
+
+      expect(tree.read('cli-e2e/jest.config.ts', 'utf-8'))
+        .toMatchInlineSnapshot(`
+        "/* eslint-disable */
+        import { readFileSync } from 'fs';
+
+        // Reading the SWC compilation config for the spec files
+        const swcJestConfig = JSON.parse(
+          readFileSync(\`\${__dirname}/.spec.swcrc\`, 'utf-8')
+        );
+
+        // Disable .swcrc look-up by SWC core because we're passing in swcJestConfig ourselves
+        swcJestConfig.swcrc = false;
+
+        export default {
+          displayName: 'cli-e2e',
+          preset: '../jest.preset.js',
+          setupFiles: ['<rootDir>/src/test-setup.ts'],
+          testEnvironment: 'node',
+          transform: {
+            '^.+\\\\.[tj]s$': ['@swc/jest', swcJestConfig],
+          },
+          moduleFileExtensions: ['ts', 'js', 'html'],
+          coverageDirectory: 'test-output/jest/coverage',
+        };
+        "
+      `);
+      expect(tree.read('cli-e2e/.spec.swcrc', 'utf-8')).toMatchInlineSnapshot(`
+        "{
+          "jsc": {
+            "target": "es2017",
+            "parser": {
+              "syntax": "typescript",
+              "decorators": true,
+              "dynamicImport": true
+            },
+            "transform": {
+              "decoratorMetadata": true,
+              "legacyDecorator": true
+            },
+            "keepClassNames": true,
+            "externalHelpers": true,
+            "loose": true
+          },
+          "module": {
+            "type": "es6"
+          },
+          "sourceMaps": true,
+          "exclude": []
+        }
+        "
+      `);
+    });
   });
 });

packages/node/src/generators/e2e-project/e2e-project.ts

@@ -36,6 +36,7 @@ import {
 } from '@nx/js/src/utils/typescript/ts-solution-setup';
 import { getImportPath } from '@nx/js/src/utils/get-import-path';
 import { relative } from 'node:path/posix';
+import { addSwcTestConfig } from '@nx/js/src/utils/swc/add-swc-config';
 
 export async function e2eProjectGenerator(host: Tree, options: Schema) {
   return await e2eProjectGeneratorInternal(host, {
@@ -126,6 +127,10 @@ export async function e2eProjectGeneratorInternal(
   const tsConfigFile = isUsingTsSolutionConfig
     ? 'tsconfig.json'
     : 'tsconfig.spec.json';
+  const rootOffset = offsetFromRoot(options.e2eProjectRoot);
+  const coverageDirectory = isUsingTsSolutionConfig
+    ? 'test-output/jest/coverage'
+    : joinPathFragments(rootOffset, 'coverage', options.e2eProjectName);
   if (options.projectType === 'server') {
     generateFiles(
       host,
@@ -135,8 +140,10 @@ export async function e2eProjectGeneratorInternal(
         ...options,
         ...names(options.rootProject ? 'server' : options.project),
         tsConfigFile,
-        offsetFromRoot: offsetFromRoot(options.e2eProjectRoot),
+        offsetFromRoot: rootOffset,
         jestPreset,
+        coverageDirectory,
+        isUsingTsSolutionConfig,
         tmpl: '',
       }
     );
@@ -150,7 +157,7 @@ export async function e2eProjectGeneratorInternal(
           ...options,
           ...names(options.rootProject ? 'server' : options.project),
           tsConfigFile,
-          offsetFromRoot: offsetFromRoot(options.e2eProjectRoot),
+          offsetFromRoot: rootOffset,
           tmpl: '',
         }
       );
@@ -166,14 +173,17 @@ export async function e2eProjectGeneratorInternal(
         ...names(options.rootProject ? 'cli' : options.project),
         mainFile,
         tsConfigFile,
-        offsetFromRoot: offsetFromRoot(options.e2eProjectRoot),
+        offsetFromRoot: rootOffset,
         jestPreset,
+        coverageDirectory,
+        isUsingTsSolutionConfig,
         tmpl: '',
       }
     );
   }
 
   if (isUsingTsSolutionConfig) {
+    addSwcTestConfig(host, options.e2eProjectRoot, 'es6');
     generateFiles(
       host,
       path.join(__dirname, 'files/ts-solution'),
@@ -184,7 +194,7 @@ export async function e2eProjectGeneratorInternal(
           options.e2eProjectRoot,
           appProject.root
         ),
-        offsetFromRoot: offsetFromRoot(options.e2eProjectRoot),
+        offsetFromRoot: rootOffset,
         tmpl: '',
       }
     );
@@ -195,7 +205,7 @@ export async function e2eProjectGeneratorInternal(
       options.e2eProjectRoot,
       {
         ...options,
-        offsetFromRoot: offsetFromRoot(options.e2eProjectRoot),
+        offsetFromRoot: rootOffset,
         tmpl: '',
       }
     );

packages/node/src/generators/e2e-project/files/cli/jest.config.ts__tmpl__

@@ -1,13 +1,26 @@
+<%_ if (isUsingTsSolutionConfig) { _%>
+/* eslint-disable */
+import { readFileSync } from 'fs';
+
+// Reading the SWC compilation config for the spec files
+const swcJestConfig = JSON.parse(
+  readFileSync(`${__dirname}/.spec.swcrc`, 'utf-8')
+);
+
+// Disable .swcrc look-up by SWC core because we're passing in swcJestConfig ourselves
+swcJestConfig.swcrc = false;
+
+<%_ } _%>
 export default {
   displayName: '<%= e2eProjectName %>',
   preset: '<%= offsetFromRoot %><%= jestPreset %>',
   setupFiles: ['<rootDir>/src/test-setup.ts'],
   testEnvironment: 'node',
   transform: {
-    '^.+\\.[tj]s$': ['ts-jest', {
+    '^.+\\.[tj]s$': <% if (isUsingTsSolutionConfig) { %>['@swc/jest', swcJestConfig]<% } else { %>['ts-jest', {
       tsconfig: '<rootDir>/<%= tsConfigFile %>',
-    }],
+    }]<% } %>,
   },
   moduleFileExtensions: ['ts', 'js', 'html'],
-  coverageDirectory: '<%= offsetFromRoot %>coverage/<%= e2eProjectName %>',
+  coverageDirectory: '<%= coverageDirectory %>',
 };

packages/node/src/generators/e2e-project/files/server/common/jest.config.ts__tmpl__

@@ -1,3 +1,16 @@
+<%_ if (isUsingTsSolutionConfig) { _%>
+/* eslint-disable */
+import { readFileSync } from 'fs';
+
+// Reading the SWC compilation config for the spec files
+const swcJestConfig = JSON.parse(
+  readFileSync(`${__dirname}/.spec.swcrc`, 'utf-8')
+);
+
+// Disable .swcrc look-up by SWC core because we're passing in swcJestConfig ourselves
+swcJestConfig.swcrc = false;
+
+<%_ } _%>
 export default {
   displayName: '<%= e2eProjectName %>',
   preset: '<%= offsetFromRoot %><%= jestPreset %>',
@@ -6,10 +19,10 @@ export default {
   setupFiles: ['<rootDir>/src/support/test-setup.ts'],
   testEnvironment: 'node',
   transform: {
-    '^.+\\.[tj]s$': ['ts-jest', {
+    '^.+\\.[tj]s$': <% if (isUsingTsSolutionConfig) { %>['@swc/jest', swcJestConfig]<% } else { %>['ts-jest', {
       tsconfig: '<rootDir>/<%= tsConfigFile %>',
-    }],
+    }]<% } %>,
   },
   moduleFileExtensions: ['ts', 'js', 'html'],
-  coverageDirectory: '<%= offsetFromRoot %>coverage/<%= e2eProjectName %>',
+  coverageDirectory: '<%= coverageDirectory %>',
 };

packages/remix/src/generators/application/application.impl.spec.ts

@@ -587,6 +587,71 @@ describe('Remix Application', () => {
         JSON.parse(tree.read('myapp/package.json', 'utf-8'))
       ).not.toThrow();
     });
+
+    it('should generate jest test config with @swc/jest', async () => {
+      await applicationGenerator(tree, {
+        directory: 'myapp',
+        unitTestRunner: 'jest',
+        addPlugin: true,
+        skipFormat: true,
+      });
+
+      expect(tree.exists('myapp/tsconfig.spec.json')).toBeTruthy();
+      expect(tree.exists('myapp/tests/routes/_index.spec.tsx')).toBeTruthy();
+      expect(tree.exists('myapp/jest.config.ts')).toBeTruthy();
+      expect(tree.read('myapp/jest.config.ts', 'utf-8')).toMatchInlineSnapshot(`
+        "/* eslint-disable */
+        import { readFileSync } from 'fs';
+
+        // Reading the SWC compilation config for the spec files
+        const swcJestConfig = JSON.parse(
+          readFileSync(\`\${__dirname}/.spec.swcrc\`, 'utf-8')
+        );
+
+        // Disable .swcrc look-up by SWC core because we're passing in swcJestConfig ourselves
+        swcJestConfig.swcrc = false;
+
+        export default {
+          displayName: '@proj/myapp',
+          preset: '../jest.preset.js',
+          transform: {
+            '^.+\\\\.[tj]sx?$': ['@swc/jest', swcJestConfig]
+          },
+          moduleFileExtensions: ['ts', 'tsx', 'js', 'jsx'],
+          coverageDirectory: 'test-output/jest/coverage'
+        };
+        "
+      `);
+      expect(tree.read('myapp/.spec.swcrc', 'utf-8')).toMatchInlineSnapshot(`
+          "{
+            "jsc": {
+              "target": "es2017",
+              "parser": {
+                "syntax": "typescript",
+                "decorators": true,
+                "dynamicImport": true,
+                "tsx": true
+              },
+              "transform": {
+                "decoratorMetadata": true,
+                "legacyDecorator": true,
+                "react": {
+                  "runtime": "automatic"
+                }
+              },
+              "keepClassNames": true,
+              "externalHelpers": true,
+              "loose": true
+            },
+            "module": {
+              "type": "es6"
+            },
+            "sourceMaps": true,
+            "exclude": []
+          }
+          "
+        `);
+    });
   });
 });
 

packages/remix/src/generators/application/application.impl.ts

@@ -207,6 +207,7 @@ export async function remixApplicationGeneratorInternal(
         skipPackageJson: false,
         skipFormat: true,
         addPlugin: true,
+        compiler: options.useTsSolution ? 'swc' : undefined,
       });
       const projectConfig = readProjectConfiguration(tree, options.projectName);
       if (projectConfig.targets?.['test']?.options) {