tst_QAbstractTextDocumentLayout::imageAt and formatAt fails

********* Start testing of tst_QAbstractTextDocumentLayout *********
Config: Using QtTest library 5.8.0, Qt 5.8.0 (x86_64-little_endian-lp64 shared (dynamic) debug build; by GCC 4.8.5)
PASS   : tst_QAbstractTextDocumentLayout::initTestCase()
PASS   : tst_QAbstractTextDocumentLayout::getSetCheck()
PASS   : tst_QAbstractTextDocumentLayout::maximumBlockCount()
PASS   : tst_QAbstractTextDocumentLayout::anchorAt()
FAIL!  : tst_QAbstractTextDocumentLayout::imageAt() Compared values are not the same
   Actual   (documentLayout->imageAt(fooPoint)): "image"
   Expected (QString())                        : ""
   Loc: [tst_qabstracttextdocumentlayout.cpp(198)]
FAIL!  : tst_QAbstractTextDocumentLayout::formatAt() '!format.toCharFormat().isAnchor()' returned FALSE. ()
   Loc: [tst_qabstracttextdocumentlayout.cpp(227)]
PASS   : tst_QAbstractTextDocumentLayout::cleanupTestCase()
Totals: 5 passed, 2 failed, 0 skipped, 0 blacklisted, 324ms
********* Finished testing of tst_QAbstractTextDocumentLayout *********