fix: send stderr header log to stderr (#2736)

Author: sheremet-va

packages/vitest/src/node/reporters/base.ts

@@ -174,8 +174,8 @@ export abstract class BaseReporter implements Reporter {
     if (!this.shouldLog(log))
       return
     const task = log.taskId ? this.ctx.state.idMap.get(log.taskId) : undefined
-    this.ctx.logger.log(c.gray(log.type + c.dim(` | ${task ? getFullName(task, c.dim(' > ')) : 'unknown test'}`)))
-    process[log.type].write(`${log.content}\n`)
+    const header = c.gray(log.type + c.dim(` | ${task ? getFullName(task, c.dim(' > ')) : 'unknown test'}`))
+    process[log.type].write(`${header}\n${log.content}\n`)
   }
 
   shouldLog(log: UserConsoleLog) {

packages/vitest/src/runtime/setup.node.ts

@@ -76,12 +76,10 @@ export async function setupConsoleLogSpy() {
     if (!buffer)
       return
     const content = buffer.map(i => String(i)).join('')
-    if (!content.trim())
-      return
     const timer = timers.get(taskId)!
     rpc().onUserConsoleLog({
       type: 'stdout',
-      content,
+      content: content || '<empty line>',
       taskId,
       time: timer.stdoutTime || RealDate.now(),
       size: buffer.length,
@@ -94,12 +92,10 @@ export async function setupConsoleLogSpy() {
     if (!buffer)
       return
     const content = buffer.map(i => String(i)).join('')
-    if (!content.trim())
-      return
     const timer = timers.get(taskId)!
     rpc().onUserConsoleLog({
       type: 'stderr',
-      content,
+      content: content || '<empty line>',
       taskId,
       time: timer.stderrTime || RealDate.now(),
       size: buffer.length,