From e8dcf1909e8fad46b546bbff3e6712d5ce609bbb Mon Sep 17 00:00:00 2001
From: Brian Quinlan <bquinlan@google.com>
Date: Fri, 16 Feb 2024 15:46:01 -0800
Subject: [PATCH] Implement `lineTerminator` in `MemoryStdout` Fake (#143608)

https://dart-review.googlesource.com/c/sdk/+/326761/24/sdk/lib/io/stdio.dart#380
added a `lineTerminator` field to `Stdout`.

Add that field to the fake in packages/test.

Fixes https://github.com/flutter/flutter/issues/143614

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---
 packages/flutter_tools/test/src/fakes.dart | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/packages/flutter_tools/test/src/fakes.dart b/packages/flutter_tools/test/src/fakes.dart
index 33dfdb554ab..e7f38c93d98 100644
--- a/packages/flutter_tools/test/src/fakes.dart
+++ b/packages/flutter_tools/test/src/fakes.dart
@@ -193,6 +193,13 @@ class MemoryStdout extends MemoryIOSink implements io.Stdout {
   }
   bool _hasTerminal = true;
 
+  @override
+  // ignore: override_on_non_overriding_member
+  String get lineTerminator => '\n';
+  set lineTerminator(String value) {
+    throw UnimplementedError('Setting the line terminator is not supported');
+  }
+
   @override
   io.IOSink get nonBlocking => this;