2 files changed, 24 insertions, 6 deletions

diff --git a/test_util/src/builders.rs b/test_util/src/builders.rs
index f0002b52f..862838dcb 100644
--- a/test_util/src/builders.rs
+++ b/test_util/src/builders.rs
@@ -316,6 +316,7 @@ pub struct TestCommandBuilder {
   args_text: String,
   args_vec: Vec<String>,
   split_output: bool,
+  skip_strip_ansi: bool,
 }
 
 impl TestCommandBuilder {
@@ -327,6 +328,7 @@ impl TestCommandBuilder {
       stderr: None,
       stdin_text: None,
       split_output: false,
+      skip_strip_ansi: false,
       cwd: None,
       envs: Default::default(),
       envs_remove: Default::default(),
@@ -410,6 +412,11 @@ impl TestCommandBuilder {
     self
   }
 
+  pub fn skip_strip_ansi(mut self) -> Self {
+    self.skip_strip_ansi = true;
+    self
+  }
+
   pub fn stdin<T: Into<Stdio>>(mut self, cfg: T) -> Self {
     self.stdin = Some(StdioContainer::new(cfg.into()));
     self
@@ -533,8 +540,14 @@ impl TestCommandBuilder {
       output
     }
 
-    fn sanitize_output(text: String, args: &[OsString]) -> String {
-      let mut text = strip_ansi_codes(&text).to_string();
+    fn sanitize_output(
+      mut text: String,
+      args: &[OsString],
+      skip_strip_ansi: bool,
+    ) -> String {
+      if !skip_strip_ansi {
+        text = strip_ansi_codes(&text).to_string();
+      }
       // deno test's output capturing flushes with a zero-width space in order to
       // synchronize the output pipes. Occasionally this zero width space
       // might end up in the output so strip it from the output comparison here.
@@ -581,14 +594,15 @@ impl TestCommandBuilder {
     // and dropping it closes them.
     drop(command);
 
-    let combined = combined_reader
-      .map(|pipe| sanitize_output(read_pipe_to_string(pipe), &args));
+    let combined = combined_reader.map(|pipe| {
+      sanitize_output(read_pipe_to_string(pipe), &args, self.skip_strip_ansi)
+    });
 
     let status = process.wait().unwrap();
     let std_out_err = std_out_err_handle.map(|(stdout, stderr)| {
       (
-        sanitize_output(stdout.join().unwrap(), &args),
-        sanitize_output(stderr.join().unwrap(), &args),
+        sanitize_output(stdout.join().unwrap(), &args, self.skip_strip_ansi),
+        sanitize_output(stderr.join().unwrap(), &args, self.skip_strip_ansi),
       )
     });
     let exit_code = status.code();
diff --git a/test_util/src/lib.rs b/test_util/src/lib.rs
index eda386a82..7bb99a573 100644
--- a/test_util/src/lib.rs
+++ b/test_util/src/lib.rs
@@ -490,6 +490,7 @@ pub struct CheckOutputIntegrationTest<'a> {
   pub http_server: bool,
   pub envs: Vec<(String, String)>,
   pub env_clear: bool,
+  pub skip_strip_ansi: bool,
   pub temp_cwd: bool,
   /// Copies the files at the specified directory in the "testdata" directory
   /// to the temp folder and runs the test from there. This is useful when
@@ -531,6 +532,9 @@ impl<'a> CheckOutputIntegrationTest<'a> {
     if self.env_clear {
       command_builder = command_builder.env_clear();
     }
+    if self.skip_strip_ansi {
+      command_builder = command_builder.skip_strip_ansi();
+    }
     if let Some(cwd) = &self.cwd {
       command_builder = command_builder.current_dir(cwd);
     }