From 5bf15b09b1b8a83e2e7fec4eb97b3a339348c28a Mon Sep 17 00:00:00 2001
From: Steven Johnstone <steven.james.johnstone@gmail.com>
Date: Thu, 9 Sep 2021 17:46:45 +0100
Subject: [PATCH] [dev.fuzz] internal/fuzz: always perform logical not on
 booleans when mutating

Flip booleans when mutating rather than keeping the same value
50% of the time.

Updates #48291.
---
 src/internal/fuzz/mutator.go | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/src/internal/fuzz/mutator.go b/src/internal/fuzz/mutator.go
index 9aa56782b0bd05..bab193802a51ef 100644
--- a/src/internal/fuzz/mutator.go
+++ b/src/internal/fuzz/mutator.go
@@ -88,9 +88,7 @@ func (m *mutator) mutate(vals []interface{}, maxBytes int) {
 	case float64:
 		vals[i] = m.mutateFloat(v, math.MaxFloat64)
 	case bool:
-		if m.rand(2) == 1 {
-			vals[i] = !v // 50% chance of flipping the bool
-		}
+		vals[i] = !v
 	case rune: // int32
 		vals[i] = rune(m.mutateInt(int64(v), math.MaxInt32))
 	case byte: // uint8