From cf7082ee78546da59f5f6165f30c2bce538b07d1 Mon Sep 17 00:00:00 2001
From: Simen Bekkhus <sbekkhus91@gmail.com>
Date: Tue, 14 May 2024 15:16:40 +0200
Subject: [PATCH] add test

---
 e2e/__tests__/esmConfigFile.test.ts         | 12 ++++++++++++
 e2e/esm-config/ts-modern/__tests__/test.js  | 10 ++++++++++
 e2e/esm-config/ts-modern/jest.config.ts     | 10 ++++++++++
 e2e/esm-config/ts-modern/package.json       |  3 +++
 e2e/esm-config/ts-modern/some-other-file.ts | 20 ++++++++++++++++++++
 e2e/esm-config/ts-modern/tsconfig.json      |  8 ++++++++
 6 files changed, 63 insertions(+)
 create mode 100644 e2e/esm-config/ts-modern/__tests__/test.js
 create mode 100644 e2e/esm-config/ts-modern/jest.config.ts
 create mode 100644 e2e/esm-config/ts-modern/package.json
 create mode 100644 e2e/esm-config/ts-modern/some-other-file.ts
 create mode 100644 e2e/esm-config/ts-modern/tsconfig.json

diff --git a/e2e/__tests__/esmConfigFile.test.ts b/e2e/__tests__/esmConfigFile.test.ts
index 4e1c5e8e96fe..9c42a3df41ff 100644
--- a/e2e/__tests__/esmConfigFile.test.ts
+++ b/e2e/__tests__/esmConfigFile.test.ts
@@ -54,3 +54,15 @@ test('reads config from ts file when package.json#type=module', () => {
     name: 'Config from ts file',
   });
 });
+
+test('reads config from ts file with modern resolution when package.json#type=module', () => {
+  const {configs} = getConfig('esm-config/ts-modern', [], {
+    skipPkgJsonCheck: true,
+  });
+
+  expect(configs).toHaveLength(1);
+  expect(configs[0].displayName).toEqual({
+    color: 'white',
+    name: 'Config from modern ts file',
+  });
+});
diff --git a/e2e/esm-config/ts-modern/__tests__/test.js b/e2e/esm-config/ts-modern/__tests__/test.js
new file mode 100644
index 000000000000..fc395e3a0f4a
--- /dev/null
+++ b/e2e/esm-config/ts-modern/__tests__/test.js
@@ -0,0 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+test('dummy test', () => {
+  expect(1).toBe(1);
+});
diff --git a/e2e/esm-config/ts-modern/jest.config.ts b/e2e/esm-config/ts-modern/jest.config.ts
new file mode 100644
index 000000000000..e8e204f1da6b
--- /dev/null
+++ b/e2e/esm-config/ts-modern/jest.config.ts
@@ -0,0 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+import config from './some-other-file.js';
+
+export default () => config;
diff --git a/e2e/esm-config/ts-modern/package.json b/e2e/esm-config/ts-modern/package.json
new file mode 100644
index 000000000000..3dbc1ca591c0
--- /dev/null
+++ b/e2e/esm-config/ts-modern/package.json
@@ -0,0 +1,3 @@
+{
+  "type": "module"
+}
diff --git a/e2e/esm-config/ts-modern/some-other-file.ts b/e2e/esm-config/ts-modern/some-other-file.ts
new file mode 100644
index 000000000000..a63db08a433a
--- /dev/null
+++ b/e2e/esm-config/ts-modern/some-other-file.ts
@@ -0,0 +1,20 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+// allows to make sure that `ts-node` compiles the config file without a need to build Jest types
+// integration tests of Jest types run in a separate CI job through `jest.config.ts.mjs`
+type DummyConfig = {
+  displayName: string;
+  testEnvironment: string;
+};
+
+const config: DummyConfig = {
+  displayName: 'Config from modern ts file',
+  testEnvironment: 'node',
+};
+
+export default config;
diff --git a/e2e/esm-config/ts-modern/tsconfig.json b/e2e/esm-config/ts-modern/tsconfig.json
new file mode 100644
index 000000000000..c74b8634308b
--- /dev/null
+++ b/e2e/esm-config/ts-modern/tsconfig.json
@@ -0,0 +1,8 @@
+{
+  "compilerOptions": {
+    "target": "esnext",
+    "module": "ESNext",
+    "moduleResolution": "bundler",
+    "strict": true
+  }
+}