Commit Graph

2331 Commits

Author SHA1 Message Date
Edward Welbourne
e21bf5e6b3 QString::replace(): protect sought text and replacement
When replacing each copy of one text with a copy of another, we do so
in batches of 1024; if we get more than one batch, we need to keep a
copy of the sought text and replacement if they're part of the string
we're modifying, for use in later batches.

Also do the replacements in full batches of 1024, not 1023 (which left
the last entry in an array unused); marked some related tests as
(un)likely; and move some repeated code out into a pair of little
local functions to save duplcation.

Those new functions can also serve replace_helper(); and it can shed a
const_cast and some conditioning of free() by using them the same way
replace() now does.  (There was also one place it still used the raw
after, rather than the replacement copy; which could have produced
errors if memcpy were to exercise its right to assume no overlap in
arrays.  This error is what prompted me to notice all of the above.)

Added tests.  The last error proved untestable as my memcpy is in fact
as fussy as memmove.  The first two tests added were attempts to get a
failure out of it.  The third did get a failure, but also tripped over
the problem in replace() itself.  Added to an existing test function
and renamed it to generally cover extra tests for replace.

Change-Id: I9ba6928c84ece266dbbe52b91e333ea54ab6d95e
Reviewed-by: Robin Burchell <robin.burchell@viroteck.net>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
2016-07-12 10:22:25 +00:00
Marc Mutz
e6a5be1d81 QPair: add test for pair of references
std::pair explicitly supports this (cf. std::tie),
so check we do, too.

Change-Id: Idc3c1739a4bc64a0da120dcf953def7e432f6f71
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2016-07-11 20:02:41 +00:00
Marc Mutz
6a7bae9a26 QHashFunctions: test for hash equality of null and empty string types
In Qt, null QStrings compare equal to empty ones, so add an explicit
check that the corresponding hash values are identical, too.

Ditto for QByteArray.

Change-Id: I190fc95a765305928d9b6b0e4955433865b6b247
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2016-07-11 20:02:15 +00:00
Anton Kudryavtsev
e27c07389b QString: adapt chop() auto test as data-driven test
Thiago Macieira asked to do that.

Change-Id: I9a07dad7ff2bfebc2f863e0e9f151aab66450bcf
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2016-07-11 13:22:46 +00:00
Anton Kudryavtsev
b36c6bab8d QString: add auto test for chop()
Change-Id: I8fc65c65776a64cc92e8cba3993d17746be81ba1
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
2016-07-07 15:03:30 +00:00
Marc Mutz
a91d0dd369 Q_(U)INT64_C is not a type, so don't use it as if it was
These expressions only work because they contain no non-parenthesized
commas and an int literal is last.

Fix by wrapping only the integer literal in Q_(U)INT64_C.

Change-Id: I6b8e508b6c7c022f4b3342f65c26aab89ce17702
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2016-07-06 10:34:38 +00:00
Thiago Macieira
4f3eb66173 QUrl: Test that we do correctly accept valid schemes
... and reject invalid ones. There was one error: we accepted schemes
starting with pluses, dashes and dots.

Change-Id: Ie585843cfb684bc3b6e3fffd145cfe12227ec4ad
Reviewed-by: David Faure <david.faure@kdab.com>
2016-07-02 16:36:50 +00:00
David Faure
1af4916e11 QTime: restore Qt3 compatibility in the QDataStream operators
A Qt5 program writing a null QTime() using setVersion(QDataStream::Qt_3_3),
and then a Qt3 program reading that, would lead to a weird QTime,
with isNull=false, isValid=false, hour=1193, minute=2, second=47, ms=295.

This commit restores interoperability, by writing out the expected value
(0) for a null QTime rather than the -1 value used by Qt4 and Qt5.

Change-Id: Icde468a8f6fc9434ef7018296725819b44d672af
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2016-07-02 08:13:44 +00:00
Joerg Bornemann
bd4344a0bd Fix qplugin autotest on Windows
Since Qt 5.0.0 we never built the test plugins on Windows, because we
checked for the existence of QtCore[d]4.dll, and the actual test does
not complain if it cannot find any plugins.
Use the right conditions to check for debug/release Qt builds on
Windows. Use subdirs dependencies on every platform and then actually
pass the right variable to SUBDIRS. Clean up the pro file while we're at
it.

Change-Id: I099f30afd445fbf43dc5677d256ffe55b27639b3
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
2016-06-08 19:40:29 +00:00
Friedemann Kleint
6c0783d107 Revert "Insignifify qfileinfo on Windows, like QDir".
This reverts commit 55655abfaf.

The crashes in release mode cannot be locally reproduced.

Change-Id: I4e7b1defbeac5d5512b2fa82a367d2e04e3c37a4
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@theqtcompany.com>
2016-06-08 19:05:46 +00:00
Friedemann Kleint
19def3d8f1 Revert "Insignifify qdiriterator test"
This reverts commit b373d183de.

The crashes in release mode cannot be locally reproduced.

Change-Id: I38ff5e9e045cff0e94e24ca07fb6e18e88b677c7
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@theqtcompany.com>
2016-06-08 19:05:38 +00:00
Friedemann Kleint
36ffe18f05 Re-enable tst_QDir on Windows.
Partially revert f3939d943e.

Change-Id: I67e4d8973bc18d9cd77750c6379221d34e9484b3
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@theqtcompany.com>
2016-06-08 19:04:36 +00:00
Luca Bellonda
767319a5aa Add support for 8bit encodings not ASCII compatible in QXMLStreamWriter.
When using a 8 bit encoding to write a file, a test discovers if the
encoding is really ASCII compatible by examining a letter and one of the
XML reserved characters. EBCDIC, in the current base, was not well
handled.

[ChangeLog][QtCore][QXmlStreamWriter] Fixed a bug that prevented the
generation of valid XML files when using encoding with 8 bit per
character but not ASCII compatible. QXMLStreamWriter generated XML
markup using always ASCII in this case.

Change-Id: I9c86a122dd91b2290d50c358638442f99777d4ae
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2016-06-08 18:50:25 +00:00
Marc Mutz
5a15545ee2 QDebug: fix streaming of QChars
Commit 9ef3ff30 introduced a new function, putUcs4(), to
output QChar, char16_t, char32_t as a, possibly escaped,
character literal, but got the order of stream modifiers
wrong. Instead of applying the field width to the 'ucs'
streaming, it applied it to the prefix '\u'. The same
problem exists for the pad char, leading to the result
   '00\ue4'
for a QChar containing
  ä (LATIN SMALL LETTER A WITH DIAERESIS)

Fix by reordering the elements streamed so that the
prefixes come last.

Added a test.

Change-Id: I6eaa0586501b9e780aaa3bb5dcec0e5c2f86a219
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2016-06-08 18:29:38 +00:00
Friedemann Kleint
ae0a2fe041 Rewrite test tst_QDir::cdBelowRoot() to be data-driven.
Limit the macro #ifdefery and allow for more test cases.

Task-number: QTBUG-53712
Change-Id: I2c185efc7c3b8fcd0217d2021bd98ab6044b5aee
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2016-06-08 04:08:34 +00:00
Friedemann Kleint
95f1f6f719 tst_QTemporaryFile: Run in temporary directory.
The test leaks a file (named qt_...xxx) in QDir::tempPath(). Moreover,
when tests fail, it can happen that more files are leaked and subsequent
runs do not recover since the check for non-existence of those files fails.

Change-Id: Iaea6d09ee7c271903a1b9c63e263c19f9e90bba9
Reviewed-by: David Faure <david.faure@kdab.com>
2016-06-04 18:48:52 +00:00
Thiago Macieira
32c301e229 Fix crash when connecting a non-PMF with Qt::UniqueConnection...
...if a PMF connection had already happened. Since UniqueConnection
isn't implemented for non-PMFs (functors and lambdas aren't comparable,
even if static member functions or non-member functions are), we pass a
null pointer for comparison argument. The disconnect() code already
protected against a null pointer there, but not the connect code path
with Qt::UniqueConnection

Change-Id: I87e17314d8b24ae983b1fffd145324beced0494d
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
Reviewed-by: Dario Freddi <dario.freddi@ispirata.com>
2016-05-30 00:19:39 +00:00
Thiago Macieira
e9041c7fc1 Fix parsing of tzfile(5) POSIX rule zone names with bracket quotes
POSIX.1-2001 allows quoting a zone name so that it can contain other
characters besides letters, by enclosing it in angle brackets ('<' and
'>'). This hadn't been used until recently (tzdata2016b), when the
Asia/Barnaul rule started using a zone name "+07" (the name variable
contained the value "<+07>-7").

Thanks to Paul Eggert for reporting and investigating the root cause.

Task-number: QTBUG-53071
Change-Id: Id5480807d25e49e78b79ffff1449bc410776cb66
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
2016-05-24 19:31:40 +00:00
Olivier Goffart
45eba73492 Fix QVariant conversion to an enum type.
QVariant::canConvert<Enum> was returning true for everything can can be converted
to integer, but not for integer itself. That's because in QVariant::canConvert
we set the targetType to Int of it's an enum, but the Int->Int case was not
on the conversion matrix. So this commits adds it to the conversion matrix
and now QVariant::canConvert<Enum> returns consistently true for int itself.

But even tough canConvert returned true, it did not actualy do any conversion
to the enum type itself. Fix that by handling the case properlt in 'convert'

[ChangeLog][QtCore][QVariant] Fixed QVariant::canConvert and conversion from
integer types to enumeration types.

Task-number: QTBUG-53384
Change-Id: I6ac066f3900e31bfcea7af77836ddfc7730bd60b
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2016-05-16 15:58:28 +00:00
Thiago Macieira
a26435d65c Print the QStorageInfo dump on test start
So we know what we're looking at if there's a test failure. This is like
QNetworkInterface.

Change-Id: Id75834dab9ed466e94c7ffff1444bf51f615e944
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2016-05-14 01:21:27 +00:00
Thiago Macieira
b168c6c824 QStorageInfo: fix matching of mountpoints to sibling directories
The path "/usrfoo" starts with "/usr", so if you tried to get
QStorageInfo("/usrfoo") when "/usr" is a mount point, you'd get the
wrong filesystem.

[ChangeLog][QtCore][QStorageInfo] Fixed a bug that caused QStorageInfo
to report information for the wrong filesystem if there is a mounted
filesystem at a path that is a prefix of the requested path (e.g., it
would report "/usr" filesystem for "/usrfoo").

Task-number: QTBUG-49498
Change-Id: I3e15a26e0e424169ac2bffff1417b7a27cd0132d
Reviewed-by: Jake Petroules <jake.petroules@qt.io>
2016-05-09 06:04:21 +00:00
Thiago Macieira
e1d0da6526 Fix Clang -Wexpansion-to-defined warning by deprecating QT_SUPPORTS
The C and C++ standards say it's undefined whether the preprocessor
supports macros that expand to defined() will operate as an ifdef.
Clang 3.9 started complaining about that fact.

One solution was to change QT_SUPPORTS to check for zero or one, which
means we need to change the #defines QT_NO_xxx to #define QT_NO_xxx 1.
The C standard says we don't need to #define to 0, as an unknown token
is interpreted as zero. However, that might produce a warning (GCC with
-Wundef), so changing the macro this way is not recommended.

Instead, we deprecate the macro and replace the uses with #ifdef/ndef.

Change-Id: Id75834dab9ed466e94c7ffff1444874d5680b96a
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2016-05-08 04:25:27 +00:00
Jędrzej Nowacki
67509693bd Improve tst_qtimeline::setPaused resilience
The test should not depend on qWait explicitly

Change-Id: I13c01c47c9f7bae8b0c30afa2ac8550dc0fbf028
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Jan Arve Sæther <jan-arve.saether@theqtcompany.com>
2016-05-04 09:26:57 +00:00
Oswald Buddenhagen
be6a92ec09 remove redundant OTHER_FILES assignments
newer versions of qt creator understand QMAKE_EXTRA_COMPILERS and
INSTALLS, so there is no need to list the files twice.

Change-Id: Iccf3cc3248daf3422b8c366c2eb2d2f46c5f08d1
Reviewed-by: Joerg Bornemann <joerg.bornemann@theqtcompany.com>
2016-05-02 18:34:47 +00:00
Thiago Macieira
ab2f768a8f Autotest: fix the QTimeZone::tzTest failure when database contains LMT
On some operating systems, tzdata files carry the Local Mean Time (LMT)
for the city in question, which better represents how time was tracked
before standard, hourly timezones were introduced in the early 20th
century. The test was asking for the data for 1653-02-09 and assumed
that it would find the first Central European Time (CET) rule, which
Germany didn't start using until 1893-04-01.

This fix allows us to remove the blacklist that had been applied to this
test without investigation. It wasn't related to OpenSUSE, aside from
the fact that OpenSUSE tzdata carries the LMT data.

Change-Id: Id5480807d25e49e78b79ffff1449bdaf46901367
Reviewed-by: Simon Hausmann <simon.hausmann@theqtcompany.com>
Reviewed-by: Tony Sarajärvi <tony.sarajarvi@qt.io>
2016-04-29 08:23:11 +00:00
David Faure
16fa29352b QMimeDatabase: fix mimeTypeForUrl for mailto URLs
The "path" of a mailto URL isn't a file, so we shouldn't try to do
glob-based matching. I was getting application/x-ms-dos-executable
for a .com domain and application/x-perl for a .pl domain...

Change-Id: Ifc346c3bba83ba1a8476db3202492f4c2e4d52bb
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2016-04-23 08:44:45 +00:00
Thiago Macieira
77fb9ca271 Fix encoding of IDN hostnames with QUrl::host
When the formatting parameter wasn't exactly QUrl::EncodeUnicode, it
wouldn't encode, despite having to.

Change-Id: Id75834dab9ed466e94c7ffff1444bacc08dd109b
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@theqtcompany.com>
Reviewed-by: Edward Welbourne <edward.welbourne@theqtcompany.com>
2016-04-13 22:08:26 +00:00
Thiago Macieira
7ab0829823 Fix parsing of empty port sections in URLs
The RFC does allow it. It even has examples showing them as valid. In
section 6.2.3, it shows:

      http://example.com
      http://example.com/
      http://example.com:/
      http://example.com:80/

Change-Id: Id75834dab9ed466e94c7ffff1444b7195ad21cab
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@theqtcompany.com>
Reviewed-by: Edward Welbourne <edward.welbourne@theqtcompany.com>
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@theqtcompany.com>
2016-04-13 22:08:22 +00:00
Olivier Goffart
dbe9a8c969 Don't copy the functor object for each signal emission
The behavior was different in the variadic template code and in the C++98
code. The code without variadic template support was not copying the functor
object (e.g. a lambda) before calling it.
However, in the variadic template section, QtPrivate::FunctorCall::call
took the functor by value instead of by reference resulting in a copy.

QtPrivate::FunctorCall::call is a helper function for
QtPrivate::FunctionPointer::call which is only needed for variadic template
expension.

[ChangeLog][QtCore][QObject] If the compiler supports variadic templates,
no longer copy functor connected to a signal each time the signal is
emitted. Restoring the C++98 behavior.

Task-number: QTBUG-52542
Change-Id: I3ca20ef6910893b8a288e70af7de4c7b69502173
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2016-04-13 09:35:13 +00:00
Jesus Fernandez
0f7171f290 Better error message when trying to load an invalid resource
Before this change QFile::errorString function was returning an
"Unknown error". Now it will return the typical ENOENT string.

Task-number: QTBUG-45259
Change-Id: Ib7634f1aa5d91f77151cf92c58d3956e20a4cc6b
Reviewed-by: hjk <hjk@theqtcompany.com>
2016-04-12 10:18:57 +00:00
David Faure
b6eea89b67 Fix crash when using QLockFile in a global destructor
(for instance any global object which writes out to a config file in the
destructor). If the global cache isn't available anymore, don't use it.

Change-Id: I851a6e394d0b073aebf3ffd88b1966d424bfb92e
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
2016-04-10 07:37:51 +00:00
Alexander Grishkov
f39e542eb8 Fix parsing of IPv4 addresses with certain symbols
Add some extra checks to the parser to make sure that addresses
like "300-05" aren't interpreted as valid IPv4 addresses.

Change-Id: I12475eebc9452e060779bb05e2b4ad9512a28281
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
2016-04-08 15:09:50 +00:00
Marc Mutz
f72152381b tst_QStringBuilder: add a check for self-assignment
Change-Id: I78094146bf534163af12d6e265276d987d5ce994
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
2016-04-07 07:02:38 +00:00
Stephen Kelly
bedf0367ac QVariant: Fix flags for type-erased associative iterator key
The flags here are passed to a private QVariant constructor, and they
really represent a boolean - IsPointer or not.

Because the flag for the key_type was incorrectly populated with the
flag for the value_type, memory would be corrupted when using a mapping
type whose value_type is a pointer, but whose key type was not, such as

  QMap<QString, int*>

This typo has been there since the concept was introduced in commit
v5.2.0-alpha1~807 (Add container access functionality for associative
containers in QVariant., 2013-04-05).

Task-number: QTBUG-52246
Change-Id: I9ecb13c603015eed2dc2ca43947fa0ecd6be8b5a
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
2016-04-03 10:58:12 +00:00
Marc Mutz
b7c7beacda QPointer: add a test for const QPointer<X>
People use this, so make sure there's a test for it.

I don't expect this test to fail, but static and
dynamic checkers should be presented with this
use-case, so they have a chance of warning, because
certain implementation strategies of QPointer may
make this code undefined.

Change-Id: I334bd73204ba4e186c4098fc6b7188917407e020
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
2016-04-01 18:57:25 +00:00
Simo Fält
f44d826751 Autotest: Remove blacklistings
Removing blacklistings from tests that are now passing.

Change-Id: I00aa1ce286d3e7715fb4bee4a36d0d77049a29ae
Reviewed-by: Simon Hausmann <simon.hausmann@theqtcompany.com>
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@theqtcompany.com>
Reviewed-by: Tony Sarajärvi <tony.sarajarvi@theqtcompany.com>
2016-04-01 05:41:21 +00:00
M. Moellney
705d29585b Fix qSetMessagePattern to have many time/backtrace parts
The previous implementation overwrote multiple 'time' parts in the
qSetMessagePattern with the last setting in the pattern line.
%{time}%{time process}%{time boot} ended up to be output as if
%{time boot}%{time boot}%{time boot} was set.

This fix keeps the arguments of each individual 'time' part.

The same holds for multiple 'backtrace' parts. The previouse
implementation overwrote multiple 'backtrace' arguments with the
arguments of the last occurrence.

This fix keeps the individual arguments for the 'process' parts.

The individual arguments are applied in qFormatLogMessage.

A new test to verify the individual 'time' arguments application
is added, too.

Task-number: QTBUG-51944
Change-Id: Ib757614a482c5f31ed0a61b550daa2eea4b907b4
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
2016-03-25 11:03:43 +00:00
Marc Mutz
aedda12ef1 tst_QAtomicInteger: fix UBs (signed overflow)
Drop addSub() test. It executes exactly the union of fetchAndAdd()
and fetchAndSub(), which have already had their UBs fixed.

No need to do fixes in duplicated code.

Change-Id: Ib72caab0310fce3ff9a40c261d8a38518f91ecaf
Reviewed-by: David Faure <david.faure@kdab.com>
2016-03-24 16:16:15 +00:00
James McDonnell
005a8bfbf0 Remove QPROCESS_USE_SPAWN and all that it surrounds
The spawn code was only used to make QProcess work on QNX 6.5.0.  Fork
works on QNX 6.6.0.  The QNX spawn implementation has a flaw that causes
a deadlock in certain situations.  When a working directory is specified
for the process, the QNX spawn implementation stops all threads except
the one doing the spawn so that it can temporarily change the process'
working directory.  This can lead to a deadlock if the thread does
anything that conficts with something being done in a stopped thread.
QNX 6.5.0 is no longer supported in Qt 5.6.0 so we can just switch QNX
to the fork implementation and get rid of the spawn implementation.

Made a QNX specific adjustment to the hardExit test.  There's a bug
in the OS that the test can run into because it does something that
normal applications wouldn't.

Task-number: QTBUG-47250
Change-Id: Ib32567d2c15ce651815858000035ac5aa6f35224
Reviewed-by: Dan Cape <dcape@qnx.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
Reviewed-by: Rafael Roquetto <rafael.roquetto@kdab.com>
2016-03-22 15:20:06 +00:00
Maurice Kalinowski
e7cd32274e WinRT: Fix QTimeZone transitions by switching backend
Previously WinRT was using the UTC backend which fails on all platforms
for some QDateTime autotests related to timezone items. Hence switch to
the Windows implementation for WinRT as well.

However, the windows backend does query the registry heavily, which is
not supported on WinRT. Instead use the API version provided by the SDK.

Long-term we might want to switch to this version on desktop windows as
well, as direct registry access would not be required and we could
harmonize the codepaths for both platforms.

Change-Id: I620b614e9994aa77b531e5c34c9be1da7e272a30
Reviewed-by: Oliver Wolff <oliver.wolff@theqtcompany.com>
2016-03-16 10:30:26 +00:00
Maurice Kalinowski
e830fa8fc2 tst_QXmlStream::writerHangs(): Create file in temporary directory
A test should not write to its directory.

Change-Id: I34dfc36387cf5a637b325be29c8a19ff51d9b9c3
Reviewed-by: Oliver Wolff <oliver.wolff@theqtcompany.com>
2016-03-16 08:15:59 +00:00
Maurice Kalinowski
eef3afaa97 QTextStream test: Change current directory
For platforms with builtin testdata/sandboxed platforms we need to
change the current directory to be able to create files.

Change-Id: I440205c95dd6df1308c6bf24b1b0f67fd697feab
Reviewed-by: Oliver Wolff <oliver.wolff@theqtcompany.com>
2016-03-16 08:16:03 +00:00
Marc Mutz
e4c6d73f92 QRect: fix UB (int overflow) in center()
QRect::center() should be defined for any
  QRect(x1,y1,x2,x2), INT_MIN <= x1, x2, y1, y2 <= INT_MAX
because the average of two signed integers is always
representable as a signed integer.

But not when it's calculated as (x1+x2)/2, since that
expression overflows when x1 > INT_MAX - x2.

Instead of playing games with Hacker's Delight-style
expressions, or use Google's patented algorithm, which
requires two divisions, take advantage of the fact that
int is not intmax_t and perform the calculation in the
qint64 domain. The cast back to int is always well-
defined since, as mentioned, the result is always
representable in an int.

Fix a test-case that expected a nonsensical result due
to overflow.

[ChangeLog][QtCore][QRect] Fixed integer overflow in
center(). This fixes the result for some corner-cases
like a 1x1 rectangle at (INT_MIN, INT_MIN), for which
the previous implementation could return anything
(due to invoking undefined behavior), but commonly
returned (0, 0).

Change-Id: I1a885ca6dff770327dd31655c3eb473fcfeb8878
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
2016-03-15 11:23:46 +00:00
Marc Mutz
5784c064a9 tst_QRect: drop a test that depends on int overflow
The compiler can statically check that this is undefined
behavior:

  tst_qrect.cpp:3173:52: warning: integer overflow in expression [-Woverflow]
               << QRect(QPoint(0,0), QPoint(INT_MAX+(0-INT_MIN),INT_MAX+(0-INT_MIN)));
                                                   ~^~
  tst_qrect.cpp:3173:72: warning: integer overflow in expression [-Woverflow]
               << QRect(QPoint(0,0), QPoint(INT_MAX+(0-INT_MIN),INT_MAX+(0-INT_MIN)));
                                                                       ~^~

Fix by skipping the test (like most of the others are
in the block).

Change-Id: I359a5e16db6c660c9f11d7dd8fbb40730bd63887
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
2016-03-15 10:39:38 +00:00
Friedemann Kleint
a8c72b7671 tst_QTextStream::textModeOnEmptyRead(): Create file in temporary directory.
A test should not write to its directory. Amends change
d0b54cede8.

Task-number: QTBUG-47176
Change-Id: If15258b4aed199792fab422b7ac1d74e22a9e322
Reviewed-by: Maurice Kalinowski <maurice.kalinowski@theqtcompany.com>
2016-03-11 11:26:14 +00:00
Maurice Kalinowski
71a36d0b65 Disable tests requiring shared build when compiling statically
Change-Id: I06ec53e46d2f61f1685899b0f8a4d385051095d6
Reviewed-by: Oliver Wolff <oliver.wolff@theqtcompany.com>
2016-03-11 08:30:27 +00:00
Marc Mutz
f647375275 Fix signed integer overflows in tst_QAtomicInteger
Signed integer overflows and underflows are undefined
behavior. A test that invokes UB tests nothing, because
the standard permits any outcome.

Fix by guarding the respective operations so
they are not executed if they would overflow
or underflow.

Change-Id: I40354ee88f40e4b47b70eac7790dc3a79ac70a57
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
2016-03-10 07:17:55 +00:00
Marc Mutz
62e89f4745 tst_QMetaType: fix misleading indention
As found by GCC 6:

  tests/auto/corelib/kernel/qmetatype/tst_qmetatype.cpp:1476:9: warning: statement is indented as if it were guarded by... [-Wmisleading-indentation]
         tn += ">";
         ^~
  tests/auto/corelib/kernel/qmetatype/tst_qmetatype.cpp:1474:5: note: ...this ‘if’ clause, but it is not
     if (tn.endsWith('>'))
     ^~

Fix += argument from char[2] to char as a drive-by.

Change-Id: I814dc58830934cac7fcf81eb7fd7564b2abeb631
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@theqtcompany.com>
2016-03-09 13:18:26 +00:00
Lars Knoll
d0b54cede8 Ensure QTextStream doesn't modify the Text flag on the underlying iodevice
An empty read or a failed write on the underlying QIODevice of the text
stream would lead to an early return where we wouldn't correctly restore
the QIODevice::Text flag of the io device.

Change-Id: I5b632f45dea6ede3f408113556c3dad1b96574e2
Task-number: QTBUG-47176
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
Reviewed-by: Simon Hausmann <simon.hausmann@theqtcompany.com>
2016-03-08 08:59:19 +00:00
Maurice Kalinowski
cb6d751efa Fix tests for platforms without process support
Change-Id: I2d1cefdb5ff574635a75b54499efc392aba84434
Reviewed-by: Oliver Wolff <oliver.wolff@theqtcompany.com>
2016-03-01 09:27:13 +00:00