From 9d87d658bafda70d9cdb02bdce2269f33f49f51c Mon Sep 17 00:00:00 2001
From: Damian Gryski <damian@gryski.com>
Date: Fri, 19 Nov 2021 14:26:51 -0800
Subject: [PATCH] testing: add a stub for CoverMode

This allows the strings package test to compile.
---
 src/testing/testing.go | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/testing/testing.go b/src/testing/testing.go
index bd829dc8..4f12b3d1 100644
--- a/src/testing/testing.go
+++ b/src/testing/testing.go
@@ -302,6 +302,13 @@ func Verbose() bool {
 	return flagVerbose
 }
 
+// CoverMode reports what the test coverage mode is set to.
+//
+// Test coverage is not supported; this returns the empty string.
+func CoverMode() string {
+	return ""
+}
+
 // AllocsPerRun returns the average number of allocations during calls to f.
 // Although the return value has type float64, it will always be an integral
 // value.