[nextest-runner] add verbose flag to display test command lines

nextest-runner/src/reporter/displayer/imp.rs

@@ -54,6 +54,7 @@ pub(crate) struct DisplayReporterBuilder {
     pub(crate) failure_output: Option<TestOutputDisplay>,
     pub(crate) should_colorize: bool,
     pub(crate) no_capture: bool,
+    pub(crate) verbose: bool,
     pub(crate) show_progress: ShowProgress,
     pub(crate) no_output_indent: bool,
     pub(crate) max_progress_running: MaxProgressRunning,
@@ -141,6 +142,7 @@ impl DisplayReporterBuilder {
                     final_status_level: self.status_levels.final_status_level,
                 },
                 no_capture: self.no_capture,
+                verbose: self.verbose,
                 no_output_indent: self.no_output_indent,
                 counter_width,
                 styles,
@@ -377,6 +379,7 @@ struct DisplayReporterImpl<'a> {
     default_filter: CompiledDefaultFilter,
     status_levels: StatusLevels,
     no_capture: bool,
+    verbose: bool,
     no_output_indent: bool,
     // None if no counter is displayed. If a counter is displayed, this is the
     // width of the total number of tests to run.
@@ -623,6 +626,10 @@ impl<'a> DisplayReporterImpl<'a> {
                         ),
                     )?;
                 }
+
+                if self.verbose {
+                    self.write_test_command_line(test_instance, writer)?;
+                }
             }
             TestEventKind::TestSlow {
                 stress_index,
@@ -1312,6 +1319,28 @@ impl<'a> DisplayReporterImpl<'a> {
         Ok(())
     }
 
+    fn write_test_command_line(
+        &self,
+        test_instance: &TestInstance<'a>,
+        writer: &mut dyn WriteStr,
+    ) -> io::Result<()> {
+        // Display the command line that will be used to run this test.
+        // Format: binary_path --exact test_name --nocapture [--ignored]
+        write!(
+            writer,
+            "{:>12} {} --exact {} --nocapture",
+            "COMMAND".style(self.styles.count),
+            test_instance.suite_info.binary_path,
+            test_instance.name,
+        )?;
+        if test_instance.test_info.ignored {
+            write!(writer, " --ignored")?;
+        }
+        writeln!(writer)?;
+
+        Ok(())
+    }
+
     fn write_setup_script_status_line(
         &self,
         stress_index: Option<StressIndex>,
@@ -2360,10 +2389,29 @@ mod tests {
     use smol_str::SmolStr;
     use std::{num::NonZero, sync::Arc};
 
+    fn default_builder() -> DisplayReporterBuilder {
+        DisplayReporterBuilder {
+            default_filter: CompiledDefaultFilter::for_default_config(),
+            status_levels: StatusLevels {
+                status_level: StatusLevel::Fail,
+                final_status_level: FinalStatusLevel::Fail,
+            },
+            test_count: 5000,
+            success_output: Some(TestOutputDisplay::Immediate),
+            failure_output: Some(TestOutputDisplay::Immediate),
+            should_colorize: false,
+            no_capture: true,
+            verbose: false,
+            show_progress: ShowProgress::Counter,
+            no_output_indent: false,
+            max_progress_running: MaxProgressRunning::default(),
+        }
+    }
+
     /// Creates a test reporter with default settings and calls the given function with it.
     ///
     /// Returns the output written to the reporter.
-    fn with_reporter<'a, F>(f: F, out: &'a mut String)
+    fn with_reporter<'a, F>(builder: DisplayReporterBuilder, f: F, out: &'a mut String)
     where
         F: FnOnce(DisplayReporter<'a>),
     {
@@ -2379,21 +2427,6 @@ mod tests {
         )
         .unwrap();
 
-        let builder = DisplayReporterBuilder {
-            default_filter: CompiledDefaultFilter::for_default_config(),
-            status_levels: StatusLevels {
-                status_level: StatusLevel::Fail,
-                final_status_level: FinalStatusLevel::Fail,
-            },
-            test_count: 5000,
-            success_output: Some(TestOutputDisplay::Immediate),
-            failure_output: Some(TestOutputDisplay::Immediate),
-            should_colorize: false,
-            no_capture: true,
-            show_progress: ShowProgress::Counter,
-            no_output_indent: false,
-            max_progress_running: MaxProgressRunning::default(),
-        };
         let output = ReporterStderr::Buffer(out);
         let reporter = builder.build(&configs, output);
         f(reporter);
@@ -2452,6 +2485,7 @@ mod tests {
         let mut out = String::new();
 
         with_reporter(
+            default_builder(),
             |mut reporter| {
                 // TODO: write a bunch more outputs here.
                 reporter
@@ -2508,6 +2542,7 @@ mod tests {
         let mut out = String::new();
 
         with_reporter(
+            default_builder(),
             |mut reporter| {
                 // Test single run with all passing tests
                 let run_stats_success = RunStats {
@@ -2685,6 +2720,7 @@ mod tests {
         let mut out = String::new();
 
         with_reporter(
+            default_builder(),
             |mut reporter| {
                 // Info started event.
                 reporter
@@ -3130,6 +3166,7 @@ mod tests {
         let mut out = String::new();
 
         with_reporter(
+            default_builder(),
             |reporter| {
                 assert!(reporter.inner.no_capture, "no_capture is true");
                 assert_eq!(
@@ -3151,6 +3188,35 @@ mod tests {
             &mut out,
         );
     }
+
+    #[test]
+    fn test_verbose_flag() {
+        // Test with verbose = false
+        let mut out_non_verbose = String::new();
+        let builder = default_builder();
+        with_reporter(
+            builder,
+            |reporter| {
+                assert!(
+                    !reporter.inner.verbose,
+                    "verbose should be false when not set"
+                );
+            },
+            &mut out_non_verbose,
+        );
+
+        // Test with verbose = true
+        let mut out_verbose = String::new();
+        let mut builder_verbose = default_builder();
+        builder_verbose.verbose = true;
+        with_reporter(
+            builder_verbose,
+            |reporter| {
+                assert!(reporter.inner.verbose, "verbose should be true when set");
+            },
+            &mut out_verbose,
+        );
+    }
 }
 
 #[cfg(all(windows, test))]

nextest-runner/src/reporter/imp.rs

@@ -148,6 +148,7 @@ impl ReporterBuilder {
             failure_output: self.failure_output,
             should_colorize: self.should_colorize,
             no_capture: self.no_capture,
+            verbose: self.verbose,
             show_progress: self.show_progress,
             no_output_indent: self.no_output_indent,
             max_progress_running: self.max_progress_running,