tst_QChar: add a check for comparing against int/uint

This is used throughout Qt and resolves to
   operator op(QChar, QChar)

This test makes sure we don't break those
use-cases as we fix missing relational
operators as found by tst_QStringBinOps.

In the other direction, 0 op QChar is
ambiguous, due to op(const char*, QString)
etc, so only test the uint op QChar case.

Change-Id: Ifae7fb65bf3269583898cfea3fc6c95547c75122
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>

1 files changed, 25 insertions, 0 deletions

diff --git a/tests/auto/corelib/tools/qchar/tst_qchar.cpp b/tests/auto/corelib/tools/qchar/tst_qchar.cpp
index 32002fe7ed..29e48a1cc8 100644
--- a/tests/auto/corelib/tools/qchar/tst_qchar.cpp
+++ b/tests/auto/corelib/tools/qchar/tst_qchar.cpp
@@ -44,6 +44,7 @@ class tst_QChar : public QObject
 {
     Q_OBJECT
 private slots:
+    void operator_eqeq_int();
     void operators_data();
     void operators();
     void toUpper();
@@ -79,6 +80,30 @@ private slots:
     void unicodeVersion();
 };
 
+void tst_QChar::operator_eqeq_int()
+{
+    {
+        const QChar ch = QLatin1Char(' ');
+        QVERIFY(ch != 0);
+        QVERIFY(!(ch == 0));
+
+        QVERIFY(ch == 0x20);
+        QVERIFY(!(ch != 0x20));
+        QVERIFY(0x20 == ch);
+        QVERIFY(!(0x20 != ch));
+    }
+    {
+        const QChar ch = QLatin1Char('\0');
+        QVERIFY(ch == 0);
+        QVERIFY(!(ch != 0));
+
+        QVERIFY(ch != 0x20);
+        QVERIFY(!(ch == 0x20));
+        QVERIFY(0x20 != ch);
+        QVERIFY(!(0x20 == ch));
+    }
+}
+
 void tst_QChar::operators_data()
 {
     QTest::addColumn<QChar>("lhs");