From abf72c5b375205b1d7d3565c7660ef70e464c45d Mon Sep 17 00:00:00 2001
From: David Sherret <dsherret@users.noreply.github.com>
Date: Tue, 10 May 2022 16:24:37 -0400
Subject: chore: fix flaky steps_output_within - part 2 (#14562)

---
 test_util/src/lib.rs | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'test_util/src')

diff --git a/test_util/src/lib.rs b/test_util/src/lib.rs
index 59a777d40..0eea21b04 100644
--- a/test_util/src/lib.rs
+++ b/test_util/src/lib.rs
@@ -1819,6 +1819,13 @@ impl<'a> CheckOutputIntegrationTest<'a> {
 
     actual = strip_ansi_codes(&actual).to_string();
 
+    // deno test's output capturing flushes with a zero-width space in order to
+    // synchronize the output pipes. Occassionally this zero width space
+    // might end up in the output so strip it from the output comparison here.
+    if args.get(0) == Some(&"test") {
+      actual = actual.replace('\u{200B}', "");
+    }
+
     let expected = if let Some(s) = self.output_str {
       s.to_owned()
     } else {
-- 
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