From 5e93361888e3d2b03e7b6da19517b44e0239fb47 Mon Sep 17 00:00:00 2001
From: Marc Mutz <marc.mutz@kdab.com>
Date: Thu, 6 Apr 2017 18:33:20 +0200
Subject: [PATCH] Add a test for consistency of hash values between
 QString{,Ref,View}

Change-Id: I64a169fd6c8e2444bfe67e3ecd5375ea7b6a81ee
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
---
 .../tools/qhashfunctions/tst_qhashfunctions.cpp      | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/tests/auto/corelib/tools/qhashfunctions/tst_qhashfunctions.cpp b/tests/auto/corelib/tools/qhashfunctions/tst_qhashfunctions.cpp
index 1e09da1fe4..a8ea9ccf27 100644
--- a/tests/auto/corelib/tools/qhashfunctions/tst_qhashfunctions.cpp
+++ b/tests/auto/corelib/tools/qhashfunctions/tst_qhashfunctions.cpp
@@ -38,6 +38,7 @@ class tst_QHashFunctions : public QObject
 {
     Q_OBJECT
 private Q_SLOTS:
+    void consistent();
     void qhash();
     void qhash_of_empty_and_null_qstring();
     void qhash_of_empty_and_null_qbytearray();
@@ -50,6 +51,17 @@ private Q_SLOTS:
     void setGlobalQHashSeed();
 };
 
+void tst_QHashFunctions::consistent()
+{
+    // QString-like
+    {
+        const QString s = QStringLiteral("abcdefghijklmnopqrstuvxyz").repeated(16);
+
+        QCOMPARE(qHash(s), qHash(QStringRef(&s)));
+        QCOMPARE(qHash(s), qHash(QStringView(s)));
+    }
+}
+
 void tst_QHashFunctions::qhash()
 {
     {