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read autotest: write out data when comparison fails

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This helps with debugging, as we can just grab the data rather than
using imageconvertor.

Reviewed-by: David Faure
This commit is contained in:
Alex Merry 2014-03-01 12:36:28 +00:00
parent b4192f9f8b
commit 6d24f585b1
1 changed files with 26 additions and 0 deletions
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26
autotests/readtest.cpp
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@ -29,6 +29,26 @@
#include <QImageReader>
#include <QTextStream>
static void writeImageData(const char *name, const QString &filename, const QImage &image)
{
QFile file(filename);
if (file.open(QIODevice::WriteOnly)) {
qint64 written = file.write(reinterpret_cast<const char *>(image.bits()), image.byteCount());
if (written == image.byteCount()) {
QTextStream(stdout) << " " << name
<< " written to " << filename << "\n";
} else {
QTextStream(stdout) << " could not write " << name
<< " to " << filename << ":"
<< file.errorString() << "\n";
}
} else {
QTextStream(stdout) << " could not open "
<< filename << ":"
<< file.errorString() << "\n";
}
}
int main(int argc, char ** argv)
{
QCoreApplication app(argc, argv);
@ -99,6 +119,12 @@ int main(int argc, char ** argv)
if (expImage != inputImage) {
QTextStream(stdout) << "FAIL : " << fi.fileName()
<< ": differs from " << expfilename << "\n";
writeImageData("expected data",
fi.fileName() + QLatin1String("-expected.data"),
expImage);
writeImageData("actual data",
fi.fileName() + QLatin1String("-actual.data"),
inputImage);
++failed;
} else {
QTextStream(stdout) << "PASS : " << fi.fileName() << "\n";