Merge branch 'master' of scm.dev.nokia.troll.no:qt/oslo-staging-1 into master-integration

* 'master' of scm.dev.nokia.troll.no:qt/oslo-staging-1: (33 commits)
  Add inter-process binary shader cache for MeeGo
  Track average wait times under our maximum spin time threshold
  Store and track spin times in nanosecond resolution
  Optimize adaptive spinning mutex code
  Improve QMutex contention performance on Linux
  Improve QMutex contention performance on Mac OS X
  Disable spinning under lock contention on single CPU machines
  Remove unnecessary testAndSetAcquire from QMutex::lockInternal()
  Move contender count maintenance to QMutexPrivate
  test contention when using 2 mutexes
  Ensure that every thread does contend in the contention tests
  Add baseline test data to measure test overhead
  Test contention performance for long (10ms) critical sections
  Add a benchmark for contended and uncontended QMutex performance
  Removed QMutexPrivate::self() declaration
  Add QElapsedTimer::nsecsElapsed() const
  Delay creation of the process manager
  Make the QRasterPaintEngineState copy constructor cheaper.
  Micro-optimization for QSpanData::setup()
  define FSCTL_SET_REPARSE_POINT in test header
  ...

1 files changed, 37 insertions, 0 deletions

diff --git a/tests/auto/qtextstream/tst_qtextstream.cpp b/tests/auto/qtextstream/tst_qtextstream.cpp
index 4c78ef0..005f686 100644
--- a/tests/auto/qtextstream/tst_qtextstream.cpp
+++ b/tests/auto/qtextstream/tst_qtextstream.cpp
@@ -228,6 +228,7 @@ private slots:
     void status_real_read();
     void status_integer_read();
     void status_word_read();
+    void status_write_error();
 
     // use case tests
     void useCase1();
@@ -4176,6 +4177,42 @@ void tst_QTextStream::status_word_read()
     QCOMPARE(s.status(), QTextStream::ReadPastEnd);
 }
 
+class FakeBuffer : public QBuffer
+{
+protected:
+    qint64 writeData(const char *c, qint64 i) { return m_lock ? 0 : QBuffer::writeData(c, i); }
+public:
+    FakeBuffer(bool locked = false) : m_lock(locked) {}
+    void setLocked(bool locked) { m_lock = locked; }
+private:
+    bool m_lock;
+};
+
+void tst_QTextStream::status_write_error()
+{
+    FakeBuffer fb(false);
+    QVERIFY(fb.open(QBuffer::ReadWrite));
+    QTextStream fs(&fb);
+    fs.setCodec(QTextCodec::codecForName("latin1"));
+    /* first write some initial content */
+    fs << "hello";
+    fs.flush();
+    QCOMPARE(fs.status(), QTextStream::Ok);
+    QCOMPARE(fb.data(), QByteArray("hello"));
+    /* then test that writing can cause an error */
+    fb.setLocked(true);
+    fs << "error";
+    fs.flush();
+    QCOMPARE(fs.status(), QTextStream::WriteFailed);
+    QCOMPARE(fb.data(), QByteArray("hello"));
+    /* finally test that writing after an error doesn't change the stream any more */
+    fb.setLocked(false);
+    fs << "can't do that";
+    fs.flush();
+    QCOMPARE(fs.status(), QTextStream::WriteFailed);
+    QCOMPARE(fb.data(), QByteArray("hello"));
+}
+
 void tst_QTextStream::task180679_alignAccountingStyle()
 {
     {