chore(test): parallel test execution! 🏎️ (#8919)

Author: mmaietta

.changeset/quick-pigs-invite.md

@@ -0,0 +1,5 @@
+---
+"builder-util": patch
+---
+
+chore(test): parallel test execution! Updates base Logger to squelch noisy/concurrent logging when VITEST env var and DEBUG=electron-builder are set.

packages/builder-util/src/log.ts

@@ -20,7 +20,14 @@ export type LogLevel = "info" | "warn" | "debug" | "notice" | "error"
 export const PADDING = 2
 
 export class Logger {
-  constructor(protected readonly stream: WritableStream) {}
+  // clean up logs since concurrent tests are impossible to track logic execution with console concurrency "noise"
+  private readonly shouldDisableNonErrorLoggingVitest = process.env.VITEST && !this.isDebugEnabled
+
+  constructor(protected readonly stream: WritableStream) {
+    if (this.shouldDisableNonErrorLoggingVitest) {
+      this.log(`non-error logging is silenced during VITEST workfloww when DEBUG=electron-builder flag is not set`)
+    }
+  }
 
   messageTransformer: (message: string, level: LogLevel) => string = it => it
 
@@ -61,6 +68,10 @@ export class Logger {
   }
 
   private _doLog(message: string | Error, fields: Fields | null, level: LogLevel) {
+    if (this.shouldDisableNonErrorLoggingVitest && level !== "error") {
+      return // ignore info/warn message during VITEST workflow if debug flag is disabled
+    }
+
     // noinspection SuspiciousInstanceOfGuard
     if (message instanceof Error) {
       message = message.stack || message.toString()