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tst_QFile: add a couple more sequential Unix device files

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/dev/zero and /dev/null are expected to always be present in any system
(even containers). Unlike /dev/null, you *can* read from /dev/zero so
test that QIODevice doesn't think it is random-access because of that.

/dev/tty is also always present but has an interesting semantic. Could
also try /dev/full, /dev/random and /dev/urandom.

Change-Id: Ia2aa807ffa8a4c798425fffd15d84b60573f2c26
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
This commit is contained in:
Thiago Macieira 2019-11-18 16:33:29 +01:00
parent 36ccbee34e
commit 928b51704a
1 changed files with 10 additions and 1 deletions
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11
tests/auto/corelib/io/qfile/tst_qfile.cpp
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@ -1825,9 +1825,18 @@ void tst_QFile::bufferedRead()
#ifdef Q_OS_UNIX #ifdef Q_OS_UNIX
void tst_QFile::isSequential() void tst_QFile::isSequential()
{ {
QFile zero("/dev/null"); QFile zero("/dev/zero");
QVERIFY2(zero.open(QFile::ReadOnly), msgOpenFailed(zero).constData()); QVERIFY2(zero.open(QFile::ReadOnly), msgOpenFailed(zero).constData());
QVERIFY(zero.isSequential()); QVERIFY(zero.isSequential());
QFile null("/dev/null");
QVERIFY(null.open(QFile::ReadOnly));
QVERIFY(null.isSequential());
// /dev/tty will fail to open if we don't have a controlling TTY
QFile tty("/dev/tty");
if (tty.open(QFile::ReadOnly))
QVERIFY(tty.isSequential());
} }
#endif #endif