From 30aca0674e8c0839101c7d7730ac242fcb589287 Mon Sep 17 00:00:00 2001
From: Constantin Konstantinidis <constantinkonstantinidis@gmail.com>
Date: Sun, 13 Apr 2025 16:21:52 +0200
Subject: [PATCH] strings: duplicate alignment test from bytes package

Fixes #26129

Change-Id: If98f85b458990dbff7ecfeaea6c81699dafa66ef
Reviewed-on: https://go-review.googlesource.com/c/go/+/665275
Reviewed-by: Keith Randall <khr@google.com>
Auto-Submit: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Robert Griesemer <gri@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
---
 src/strings/compare_test.go | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/strings/compare_test.go b/src/strings/compare_test.go
index a43578423d..2fd3df4435 100644
--- a/src/strings/compare_test.go
+++ b/src/strings/compare_test.go
@@ -36,9 +36,13 @@ var compareTests = []struct {
 
 func TestCompare(t *testing.T) {
 	for _, tt := range compareTests {
-		cmp := Compare(tt.a, tt.b)
-		if cmp != tt.i {
-			t.Errorf(`Compare(%q, %q) = %v`, tt.a, tt.b, cmp)
+		numShifts := 16
+		for offset := 0; offset <= numShifts; offset++ {
+			shiftedB := (Repeat("*", offset) + tt.b)[offset:]
+			cmp := Compare(tt.a, shiftedB)
+			if cmp != tt.i {
+				t.Errorf(`Compare(%q, %q), offset %d = %v; want %v`, tt.a, tt.b, offset, cmp, tt.i)
+			}
 		}
 	}
 }
-- 
2.51.0