tests: better test initializing allowing for better printing (#5379)

Co-authored-by: Nerixyz <nerixdev@outlook.de>

tests/src/Test.cpp

@@ -0,0 +1,42 @@
+#include "Test.hpp"
+
+#include <QString>
+#include <QStringView>
+
+std::ostream &operator<<(std::ostream &os, QStringView str)
+{
+    os << str.toString().toStdString();
+    return os;
+}
+
+std::ostream &operator<<(std::ostream &os, const QByteArray &bytes)
+{
+    os << std::string_view{bytes.data(), static_cast<size_t>(bytes.size())};
+    return os;
+}
+
+std::ostream &operator<<(std::ostream &os, const QString &str)
+{
+    os << str.toStdString();
+    return os;
+}
+
+// The PrintTo overloads use UniversalPrint to print strings in quotes.
+// Even though this uses testing::internal, this is publically documented in
+// gtest/gtest-printers.h.
+
+void PrintTo(const QByteArray &bytes, std::ostream *os)
+{
+    ::testing::internal::UniversalPrint(bytes.toStdString(), os);
+}
+
+void PrintTo(QStringView str, std::ostream *os)
+{
+    ::testing::internal::UniversalPrint(
+        std::u16string{str.utf16(), static_cast<size_t>(str.size())}, os);
+}
+
+void PrintTo(const QString &str, std::ostream *os)
+{
+    ::testing::internal::UniversalPrint(str.toStdU16String(), os);
+}