[nextest-runner] clarify how progress bar is hidden with piped stderr

sunshowers · sunshowers · commit bbf84b35505f · 2025-05-15T21:52:50.000Z
diff --git a/nextest-runner/src/reporter/displayer/imp.rs b/nextest-runner/src/reporter/displayer/imp.rs
@@ -94,6 +94,8 @@ impl DisplayReporterBuilder {
 
             ReporterStderr::Terminal => {
                 let state = ProgressBarState::new(self.test_count, theme_characters.progress_chars);
+                // Note: even if we create a progress bar here, if stderr is
+                // piped, indicatif will not show it.
                 ReporterStderrImpl::TerminalWithBar { state }
             }
             ReporterStderr::Buffer(buf) => ReporterStderrImpl::Buffer(buf),

Original file line number	Diff line number	Diff line change
`@@ -94,6 +94,8 @@ impl DisplayReporterBuilder {`
`94`	`94`
`95`	`95`	`ReporterStderr::Terminal => {`
`96`	`96`	`let state = ProgressBarState::new(self.test_count, theme_characters.progress_chars);`
	`97`	`+ // Note: even if we create a progress bar here, if stderr is`
	`98`	`+ // piped, indicatif will not show it.`
`97`	`99`	`ReporterStderrImpl::TerminalWithBar { state }`
`98`	`100`	`}`
`99`	`101`	`ReporterStderr::Buffer(buf) => ReporterStderrImpl::Buffer(buf),`