fix test tsconfig and jest config

test

more test

remove duplicated `globals` entry in jest.config after rebase

add `__DEBUG_BUILD__`

Author: Lms24

packages/replay/jest.config.ts

@@ -1,23 +1,24 @@
 import type { Config } from '@jest/types';
 import { pathsToModuleNameMapper } from 'ts-jest';
+import { jsWithTs as jsWithTsPreset } from 'ts-jest/presets';
 
-import { compilerOptions } from './tsconfig.json';
+import { compilerOptions } from './tsconfig.test.json';
 
 export default async (): Promise<Config.InitialOptions> => {
   return {
+    ...jsWithTsPreset,
     verbose: true,
-    preset: 'ts-jest/presets/js-with-ts', // needed when import worker.js
+    globals: {
+      'ts-jest': {
+        tsconfig: '<rootDir>/tsconfig.test.json',
+      },
+      __DEBUG_BUILD__: true,
+    },
     moduleNameMapper: pathsToModuleNameMapper(compilerOptions.paths, {
       prefix: '<rootDir>/',
     }),
     setupFilesAfterEnv: ['./jest.setup.ts'],
     testEnvironment: 'jsdom',
     testMatch: ['<rootDir>/test/**/*(*.)@(spec|test).ts'],
-    globals: {
-      'ts-jest': {
-        tsconfig: '<rootDir>/tsconfig.json',
-      },
-      __DEBUG_BUILD__: true,
-    },
   };
 };

packages/replay/test/unit/tsconfig.json

@@ -0,0 +1,8 @@
+// TODO Once https://github.com/microsoft/TypeScript/issues/33094 is done (if it ever is), this file can disappear, as
+// it's purely a placeholder to satisfy VSCode.
+
+{
+  "extends": "../tsconfig.test.json",
+
+  "include": ["./**/*"]
+}

packages/replay/test/unit/util/isSampled.test.ts

@@ -1,7 +1,7 @@
 import { isSampled } from '../../../src/util/isSampled';
 
 // Note Math.random generates a value from 0 (inclusive) to <1 (1 exclusive).
-const cases = [
+const cases: [number, number, boolean][] = [
   [1.0, 0.9999, true],
   [1.0, 0.0, true],
   [1.0, 0.5, true],

packages/replay/tsconfig.test.json

@@ -4,6 +4,17 @@
   "include": ["test/**/*.ts", "jest.config.ts", "jest.setup.ts"],
 
   "compilerOptions": {
-    "types": ["node", "jest"]
+    "paths": {
+      "@test": ["./test"],
+      "@test/*": ["./test/*"]
+    },
+    "baseUrl": ".",
+    "rootDir": ".",
+    "types": ["node", "jest"],
+    "noImplicitAny": false,
+    "noImplicitThis": false,
+    "strictPropertyInitialization": false,
+    "resolveJsonModule": true,
+    "allowJs": true
   }
 }

packages/replay/worker/src/Compressor.ts

@@ -9,7 +9,7 @@ export class Compressor {
   /**
    * Number of added events
    */
-  public added: number;
+  public added: number = 0;
 
   public constructor() {
     this.init();