[Development] Code Coverage Statistics for QtBase

S├ębastien Fricker fricker at froglogic.com
Thu Feb 19 15:51:45 CET 2015


Hi,
According http://download.froglogic.com/public/qt5-squishcoco-report/ 
there is a big decrease of the code coverage between Qt5/dev and Qt5.4.
The code coverage from QtBase is decreasing from 56% to 42%.

The first reason of that, is that approximately 100 new files get added 
into the project and the code coverage of this set is near to zero (see 
the HTML attachment and the table below).
This new uncovered files are responsible of a lost of the code coverage 
of 3% approximately.
Question: are these files not tested through an unit test? If they are 
tested, I need to look why they are not taken in account by the code 
coverage analysis.


The main difference are caused by the code coverage of the unit tests 
itself.
The number of unit tests did not decrease, but the code coverage of the 
tests with the status Unknown decrease from 13% (from 43% to 30%) and 
this explain the rest of the code coverage lost.
These tests are in fact the code coverage of the code which is running 
before and after a unit test (setup the GUI, common initializations 
executed before main(), exit code, ...).
Question: are they changes between Qt5.4 and Qt5/dev in QTestLib (in the 
unit tests or in QtBase) which could explain this?

Regards,
S├ębastien

List of new files:
Source 	Coverage (1 means 100%)
action.c 	0
ast-build.c 	0
atom.c 	0
compat.c 	0
context-priv.c 	0
context.c 	0
expr.c 	0
include.c 	0
keycodes.c 	0
keymap-dump.c 	0
keymap-priv.c 	0
keymap.c 	0
keysym-utf.c 	0
keysym.c 	0
keywords.c 	0
parser.c 	0
parser.y 	0
qbasicfontdatabase.cpp 	0
qdbusmenuadaptor.cpp 	0
qdbusmenuconnection.cpp 	0
qdbusmenutypes.cpp 	0
qdbusplatformmenu.cpp 	0
qdbustrayicon.cpp 	0
qdbustraytypes.cpp 	0
qdevicediscovery_udev.cpp 	0
qeglconvenience.cpp 	0
qeglfscontext.cpp 	0
qeglfsdeviceintegration.cpp 	0
qeglfshooks.cpp 	0
qeglfsintegration.cpp 	0
qeglfsoffscreenwindow.cpp 	0
qeglfsscreen.cpp 	0
qeglfswindow.cpp 	0
qeglpbuffer.cpp 	0
qeglplatformcontext.cpp 	0
qeglplatformcursor.cpp 	0
qeglplatformintegration.cpp 	0
qeglplatformscreen.cpp 	0
qeglplatformwindow.cpp 	0
qevdevkeyboardhandler.cpp 	0
qevdevkeyboardmanager.cpp 	0
qevdevmousehandler.cpp 	0
qevdevmousemanager.cpp 	0
qevdevtablet.cpp 	0
qevdevtouch.cpp 	0
qeventdispatcher_glib.cpp 	0
qfbbackingstore.cpp 	0
qfbcursor.cpp 	0
qfbscreen.cpp 	0
qfbvthandler.cpp 	0
qfbwindow.cpp 	0
qfontconfigdatabase.cpp 	0
qfontengine_ft.cpp 	0
qfontenginemultifontconfig.cpp 	0
qgenericunixeventdispatcher.cpp 	0
qgenericunixservices.cpp 	0
qgenericunixthemes.cpp 	0
qglxconvenience.cpp 	0
qinputdevicemanager.cpp 	0
qopenglcompositor.cpp 	0
qopenglcompositorbackingstore.cpp 	0
qopenglfunctions_4_4_compatibility.cpp 	0
qopenglfunctions_4_4_core.cpp 	0
qopenglfunctions_4_5_compatibility.cpp 	0
qopenglfunctions_4_5_core.cpp 	0
qplatformgraphicsbuffer.cpp 	0
qplatformgraphicsbufferhelper.cpp 	0
qsslellipticcurve.cpp 	0
qsslpresharedkeyauthenticator.cpp 	0
qstatusnotifieritemadaptor.cpp 	0
qunixeventdispatcher.cpp 	0
qxcbbackingstore.cpp 	0
qxcbclipboard.cpp 	0
qxcbconnection.cpp 	0
qxcbconnection_xi2.cpp 	0
qxcbcursor.cpp 	0
qxcbdrag.cpp 	0
qxcbglintegration.cpp 	0
qxcbglintegrationfactory.cpp 	0
qxcbimage.cpp 	0
qxcbintegration.cpp 	0
qxcbkeyboard.cpp 	0
qxcbmime.cpp 	0
qxcbnativeinterface.cpp 	0
qxcbnativeinterfacehandler.cpp 	0
qxcbscreen.cpp 	0
qxcbsessionmanager.cpp 	0
qxcbsystemtraytracker.cpp 	0
qxcbwindow.cpp 	0
qxcbwmsupport.cpp 	0
qxcbxsettings.cpp 	0
qxdgnotificationproxy.cpp 	0
qxlibeglintegration.cpp 	0
rules.c 	0
scanner.c 	0
state.c 	0
symbols.c 	0
text.c 	0
types.c 	0
utf8.c 	0
utils.c 	0
vmod.c 	0
xkb-compat.c 	0
xkb-keymap.c 	0
xkbcomp.c 	0
forkfd.c 	0,2841726619
qsharedmemory_systemv.cpp 	0,5789473684
qsystemsemaphore_systemv.cpp 	0,78125
qsslellipticcurve_openssl.cpp 	1


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