chore(video-http-server): fix jest reporter

修复因 jest 使用 stderr 输出警告而导致的 CI 执行失败
microsoft/rushstack#1329

apps/video-http-server/jest.config.js

@@ -1,7 +1,8 @@
 /** @type {import('ts-jest/dist/types').InitialOptionsTsJest} */
 module.exports = {
   preset: 'ts-jest',
-  setupFilesAfterEnv: ['<rootDir>/setupTests.ts'],
+  setupFilesAfterEnv: ['<rootDir>/jest/setupTests.ts'],
+  reporters: ['./jest/JestReporter.js'],
   testEnvironment: 'node',
   testMatch: ['**/?(*.)+(spec|test).[t]s?(x)'],
 }

apps/video-http-server/jest/JestReporter.js

@@ -0,0 +1,30 @@
+// source: https://github.com/microsoft/just/blob/47ecde0d578b223a8abf26eebd0eff02ff331988/packages/just-scripts/src/jest/JestReporter.ts
+
+// This doesn't have types for some reason
+// eslint-disable-next-line @typescript-eslint/no-var-requires
+const { DefaultReporter } = require('@jest/reporters')
+
+/**
+ * The purpose of this custom reporter is to prevent Jest from logging to stderr
+ * when there are no errors.
+ */
+class JestReporter extends DefaultReporter {
+  _isLoggingError = false
+
+  log(message) {
+    if (this._isLoggingError) {
+      process.stderr.write(message + '\n')
+    } else {
+      process.stdout.write(message + '\n')
+    }
+  }
+
+  printTestFileFailureMessage(...args) {
+    this._isLoggingError = true
+    super.printTestFileFailureMessage(...args)
+    this._isLoggingError = false
+  }
+}
+
+// jest needs this format
+module.exports = JestReporter

apps/video-http-server/tsconfig.build.json

@@ -1,4 +1,5 @@
 {
   "extends": "./tsconfig",
+  "include": ["src/**/*"],
   "exclude": ["**/*.test.ts"]
 }

apps/video-http-server/tsconfig.json

@@ -17,5 +17,5 @@
     "sourceMap": true,
     "target": "ES2020"
   },
-  "include": ["src/**/*"]
+  "include": ["src/**/*", "jest-config/**/*"]
 }