fix(repl): respect --quiet flag (#16875)

This commit changes REPL behavior to respect --quiet flag. Once 
this flag is present REPL will not print a banner at the start.

1 files changed, 17 insertions, 2 deletions

diff --git a/cli/tests/repl_tests.rs b/cli/tests/repl_tests.rs
index edc7918f9..281ae0746 100644
--- a/cli/tests/repl_tests.rs
+++ b/cli/tests/repl_tests.rs
@@ -732,7 +732,7 @@ mod repl {
     );
     assert_contains!(
       test_util::strip_ansi_codes(&out),
-      "error in --eval flag. parse error: Unexpected token `%`."
+      "Error in --eval flag: parse error: Unexpected token `%`."
     );
     assert_contains!(out, "2500"); // should not prevent input
     assert!(err.is_empty());
@@ -747,7 +747,7 @@ mod repl {
       None,
       false,
     );
-    assert_contains!(out, "error in --eval flag. Uncaught Error: Testing");
+    assert_contains!(out, "Error in --eval flag: Uncaught Error: Testing");
     assert_contains!(out, "2500"); // should not prevent input
     assert!(err.is_empty());
   }
@@ -881,4 +881,19 @@ mod repl {
     assert_contains!(out, "AggregateError");
     assert!(err.is_empty());
   }
+
+  #[test]
+  fn repl_with_quiet_flag() {
+    let (out, err) = util::run_and_collect_output_with_args(
+      true,
+      vec!["repl", "--quiet"],
+      Some(vec!["await Promise.resolve('done')"]),
+      Some(vec![("NO_COLOR".to_owned(), "1".to_owned())]),
+      false,
+    );
+    assert!(!out.contains("Deno"));
+    assert!(!out.contains("exit using ctrl+d, ctrl+c, or close()"));
+    assert_ends_with!(out, "\"done\"\n");
+    assert!(err.is_empty());
+  }
 }