Fix XML schema validation failure.

Checking constraining facets for double failed if enumeration
restriction had values INF or NaN.

There were two issues that caused validation to fail:
- wrong conversion function was used when constraining facets for
 double are checked, which caused values to be in lower case
- case when both restriction and default value are NaN was not
 handled correctly

Task-number: QTBUG-21375
Reviewed-by: Honglei Zhang

1 files changed, 5 insertions, 0 deletions

diff --git a/tests/auto/xmlpatternsvalidator/tst_xmlpatternsvalidator.cpp b/tests/auto/xmlpatternsvalidator/tst_xmlpatternsvalidator.cpp
index 817ea1a..60c1fe8 100644
--- a/tests/auto/xmlpatternsvalidator/tst_xmlpatternsvalidator.cpp
+++ b/tests/auto/xmlpatternsvalidator/tst_xmlpatternsvalidator.cpp
@@ -222,6 +222,11 @@ void tst_XmlPatternsValidator::xsdSupport_data() const
         << (QStringList() << QLatin1String("files/dateTime-with-microseconds.xml")
                           << QLatin1String("files/dateTime-with-microseconds.xsd"))
         << QString();
+
+    QTest::newRow("QTBUG-21375 A schema with a xs:double based simple type with non-numeric restrictions")
+        << 0
+        << (QStringList() << QLatin1String("files/schema-with-restrictions.xsd"))
+        << QString();
 }
 
 QTEST_MAIN(tst_XmlPatternsValidator)