From 37f617c405ae4f26cbb6bb4f08d61d6ccc111a98 Mon Sep 17 00:00:00 2001
From: Allan Sandfeld Jensen <allan.jensen@qt.io>
Date: Fri, 9 Nov 2018 14:05:35 +0100
Subject: Add qfloat16 support to QCOMPARE

Change-Id: Ide06f215a888328308a06e7e48edd666f790a5f0
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
---
 src/testlib/qtestcase.cpp | 18 ++++++++++++++++++
 src/testlib/qtestcase.h   |  5 +++++
 2 files changed, 23 insertions(+)

(limited to 'src/testlib')

diff --git a/src/testlib/qtestcase.cpp b/src/testlib/qtestcase.cpp
index 1c3292ead9..a9e2cc5ea3 100644
--- a/src/testlib/qtestcase.cpp
+++ b/src/testlib/qtestcase.cpp
@@ -52,6 +52,7 @@
 #include <QtCore/qfileinfo.h>
 #include <QtCore/qdir.h>
 #include <QtCore/qdebug.h>
+#include <QtCore/qfloat16.h>
 #include <QtCore/qlibraryinfo.h>
 #include <QtCore/private/qtools_p.h>
 #include <QtCore/qdiriterator.h>
@@ -2483,6 +2484,16 @@ bool QTest::compare_helper(bool success, const char *failureMsg,
     return QTestResult::compare(success, failureMsg, val1, val2, actual, expected, file, line);
 }
 
+/*! \fn bool QTest::qCompare(const qfloat16 &t1, const qfloat16 &t2, const char *actual, const char *expected, const char *file, int line)
+    \internal
+ */
+bool QTest::qCompare(qfloat16 const &t1, qfloat16 const &t2, const char *actual, const char *expected,
+                     const char *file, int line)
+{
+    return compare_helper(qFuzzyCompare(t1, t2), "Compared qfloat16s are not the same (fuzzy compare)",
+                          toString(t1), toString(t2), actual, expected, file, line);
+}
+
 /*! \fn bool QTest::qCompare(const float &t1, const float &t2, const char *actual, const char *expected, const char *file, int line)
     \internal
  */
@@ -2547,6 +2558,13 @@ TO_STRING_IMPL(unsigned char, %hhu)
 TO_STRING_IMPL(float, %g)
 TO_STRING_IMPL(double, %lg)
 
+template <> Q_TESTLIB_EXPORT char *QTest::toString<qfloat16>(const qfloat16 &t)
+{
+    char *msg = new char[16];
+    qsnprintf(msg, 16, "%.3g", static_cast<float>(t));
+    return msg;
+}
+
 template <> Q_TESTLIB_EXPORT char *QTest::toString<char>(const char &t)
 {
     unsigned char c = static_cast<unsigned char>(t);
diff --git a/src/testlib/qtestcase.h b/src/testlib/qtestcase.h
index a6f1711230..39364df8ef 100644
--- a/src/testlib/qtestcase.h
+++ b/src/testlib/qtestcase.h
@@ -57,6 +57,7 @@
 
 QT_BEGIN_NAMESPACE
 
+class qfloat16;
 class QRegularExpression;
 
 #define QVERIFY(statement) \
@@ -361,6 +362,9 @@ namespace QTest
     }
 #endif
 
+    Q_TESTLIB_EXPORT bool qCompare(qfloat16 const &t1, qfloat16 const &t2,
+                    const char *actual, const char *expected, const char *file, int line);
+
     Q_TESTLIB_EXPORT bool qCompare(float const &t1, float const &t2,
                     const char *actual, const char *expected, const char *file, int line);
 
@@ -405,6 +409,7 @@ namespace QTest
 
     QTEST_COMPARE_DECL(float)
     QTEST_COMPARE_DECL(double)
+    QTEST_COMPARE_DECL(qfloat16)
     QTEST_COMPARE_DECL(char)
     QTEST_COMPARE_DECL(signed char)
     QTEST_COMPARE_DECL(unsigned char)
-- 
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