strings: don't assert on Replace's allocs for ASAN

CL 657935 caused failures on the ASAN builder.

Under ASAN, do not assert on the number of allocations incurred by Replace.

Fixes #72973

Change-Id: I61536be6def6f2489d2a026c943c6e232865b723
GitHub-Last-Rev: 4aee3c2560c9a6fa6ba7c1950acc2172a7cfffe4
GitHub-Pull-Request: golang/go#72975
Reviewed-on: https://go-review.googlesource.com/c/go/+/659696
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Jorropo <jorropo.pgm@gmail.com>
Auto-Submit: Jorropo <jorropo.pgm@gmail.com>

diff --git a/src/strings/strings_test.go b/src/strings/strings_test.go
index 3f228b703f78bbaaa2aa9fe01dc4be32daac7a6b..d058ba7358cd918132de7640b43a2f142c71ee82 100644 (file)
--- a/src/strings/strings_test.go
+++ b/src/strings/strings_test.go
@@ -7,6 +7,7 @@ package strings_test
 import (
        "bytes"
        "fmt"
+       "internal/asan"
        "io"
        "iter"
        "math"
@@ -1473,9 +1474,11 @@ var ReplaceTests = []struct {
 
 func TestReplace(t *testing.T) {
        for _, tt := range ReplaceTests {
-               allocs := testing.AllocsPerRun(10, func() { Replace(tt.in, tt.old, tt.new, tt.n) })
-               if allocs > 1 {
-                       t.Errorf("Replace(%q, %q, %q, %d) allocates %.2f objects", tt.in, tt.old, tt.new, tt.n, allocs)
+               if !asan.Enabled { // See issue #72973.
+                       allocs := testing.AllocsPerRun(10, func() { Replace(tt.in, tt.old, tt.new, tt.n) })
+                       if allocs > 1 {
+                               t.Errorf("Replace(%q, %q, %q, %d) allocates %.2f objects", tt.in, tt.old, tt.new, tt.n, allocs)
+                       }
                }
                if s := Replace(tt.in, tt.old, tt.new, tt.n); s != tt.out {
                        t.Errorf("Replace(%q, %q, %q, %d) = %q, want %q", tt.in, tt.old, tt.new, tt.n, s, tt.out)