test(backend): APIテストの復活 (#10163)

* Revert 1c5291f818

* APIテストの復活

* apiテストの移行

* moduleNameMapper修正

* simpleGetでthrowしないように

status確認しているので要らない

* longer timeout

* ローカルでは問題ないのになんで

* case sensitive

* Run Nest instance within the current process

* Skip some setIntervals

* wait for 5 seconds

* kill them all!!

* logHeapUsage: true

* detectOpenHandlesがじゃましているらしい

* maxWorkers=1?

* restore drive api tests

* workerIdleMemoryLimit: 500MB

* 1024MiB

* Wait what

packages/backend/jest.config.cjs

@@ -91,7 +91,7 @@ module.exports = {
 		// See https://github.com/swc-project/jest/issues/64#issuecomment-1029753225
 		// TODO: Use `--allowImportingTsExtensions` on TypeScript 5.0 so that we can
 		// directly import `.ts` files without this hack.
-		'^(\\.{1,2}/.*)\\.js$': '$1',
+		'^((?:\\.{1,2}|[A-Z:])*/.*)\\.js$': '$1',
 	},
 
 	// An array of regexp pattern strings, matched against all module paths before considered 'visible' to the module loader
@@ -160,7 +160,7 @@ module.exports = {
 	testMatch: [
 		"<rootDir>/test/unit/**/*.ts",
 		"<rootDir>/src/**/*.test.ts",
-		//"<rootDir>/test/e2e/**/*.ts"
+		"<rootDir>/test/e2e/**/*.ts",
 	],
 
 	// An array of regexp pattern strings that are matched against all test paths, matched tests are skipped
@@ -207,4 +207,13 @@ module.exports = {
 	// watchman: true,
 
 	extensionsToTreatAsEsm: ['.ts'],
+
+	testTimeout: 60000,
+
+	// Let Jest kill the test worker whenever it grows too much
+	// (It seems there's a known memory leak issue in Node.js' vm.Script used by Jest)
+	// https://github.com/facebook/jest/issues/11956
+	maxWorkers: 1, // Make it use worker (that can be killed and restarted)
+	logHeapUsage: true, // To debug when out-of-memory happens on CI
+	workerIdleMemoryLimit: '1GiB', // Limit the worker to 1GB (GitHub Workflows dies at 2GB)
 };