Merge "Update TypeConverter#ParseFormats to handle DEFAULT format"

        audio_format_t format;

        EXPECT_TRUE(FormatConverter::fromString(stringVal, format))

                << "Conversion of \"" << stringVal << "\" failed";

        EXPECT_TRUE(audio_is_valid_format(format))

                << "Converted format \"" << stringVal << "\" is invalid";

        EXPECT_EQ(enumVal != xsd::AudioFormat::AUDIO_FORMAT_DEFAULT,

                audio_is_valid_format(format))

                << "Validity of \"" << stringVal << "\" is not as expected";

        EXPECT_EQ(stringVal, toString(format));

    }

}