Tests: Raise minimum supported MSVC version to 2015

Remove code for older versions and streamline #ifdefs.

Task-number: QTBUG-51673
Change-Id: If456567691538b1a1f452111814c5f9eba401c43
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

tests/auto/corelib/global/qrandomgenerator/tst_qrandomgenerator.cpp

@@ -840,10 +840,6 @@ void tst_QRandomGenerator::stdUniformIntDistribution()
 
 void tst_QRandomGenerator::stdGenerateCanonical()
 {
-#if defined(Q_CC_MSVC) && Q_CC_MSVC < 1900
-    // see https://connect.microsoft.com/VisualStudio/feedback/details/811611
-    QSKIP("MSVC 2013's std::generate_canonical is broken");
-#else
     QFETCH(uint, control);
     RandomGenerator rng(control);
 
@@ -858,7 +854,6 @@ void tst_QRandomGenerator::stdGenerateCanonical()
     for (int i = 0; i < 4; ++i)
         QVERIFY_3TIMES(std::generate_canonical<qreal COMMA 32>(rng) !=
                 std::generate_canonical<qreal COMMA 32>(rng));
-#endif
 }
 
 void tst_QRandomGenerator::stdUniformRealDistribution_data()

tests/auto/corelib/kernel/qmetatype/tst_qmetatype.cpp

@@ -39,12 +39,6 @@
 
 #include <algorithm>
 
-// At least these specific versions of MSVC2010 has a severe performance problem with this file,
-// taking about 1 hour to compile if the portion making use of variadic macros is enabled.
-#if defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 160030319) && (_MSC_FULL_VER <= 160040219)
-# define TST_QMETATYPE_BROKEN_COMPILER
-#endif
-
 // mingw gcc 4.8 also takes way too long, letting the CI system abort the test
 #if defined(__MINGW32__)
 # define TST_QMETATYPE_BROKEN_COMPILER

tests/auto/corelib/thread/qatomicinteger/tst_qatomicinteger.cpp

@@ -37,7 +37,7 @@
 #      undef QT_ATOMIC_FORCE_CXX11
 #    endif
 #  elif defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__) >= 407 && (__cplusplus >= 201103L || defined(__GXX_EXPERIMENTAL_CXX0X__))
-#  elif defined(_MSC_VER) && _MSC_VER >= 1900
+#  elif defined(_MSC_VER)
     // We need MSVC 2015 because of: atomics (2012), constexpr (2015), and unrestricted unions (2015).
     // Support for constexpr is not working completely on MSVC 2015 but it's enough for the test.
 #  else

tests/auto/corelib/tools/qversionnumber/tst_qversionnumber.cpp

@@ -586,10 +586,7 @@ void tst_QVersionNumber::serialize()
 
 void tst_QVersionNumber::moveSemantics()
 {
-#if defined(_MSC_VER) && _MSC_VER == 1600
+#ifdef Q_COMPILER_RVALUE_REFS
-#  define Q_MSVC_2010
-#endif
-#if defined(Q_COMPILER_RVALUE_REFS) && !defined(Q_MSVC_2010)
     // QVersionNumber(QVersionNumber &&)
     {
         QVersionNumber v1(1, 2, 3);
@@ -613,7 +610,7 @@ void tst_QVersionNumber::moveSemantics()
         QCOMPARE(v1, v2);
     }
 #endif
-#if defined(Q_COMPILER_REF_QUALIFIERS) && !defined(Q_MSVC_2010)
+#ifdef Q_COMPILER_REF_QUALIFIERS
     // normalized()
     {
         QVersionNumber v(1, 0, 0);
@@ -639,10 +636,8 @@ void tst_QVersionNumber::moveSemantics()
         QVERIFY(!segments.empty());
     }
 #endif
-#if !defined(Q_COMPILER_RVALUE_REFS) && !defined(Q_COMPILER_REF_QUALIFIERS) && !defined(Q_MSVC_2010)
+#if !defined(Q_COMPILER_RVALUE_REFS) && !defined(Q_COMPILER_REF_QUALIFIERS)
     QSKIP("This test requires C++11 move semantics support in the compiler.");
-#elif defined(Q_MSVC_2010)
-    QSKIP("This test requires compiler generated move constructors and operators.");
 #endif
 }
 

tests/auto/other/compiler/tst_compiler.cpp

@@ -1266,8 +1266,6 @@ void tst_Compiler::cxx11_rvalue_refs()
         QCOMPARE(s3, MoveDefinedQString("Hello"));
     }
 
-    // supported by MSVC only from November 2013 CTP, but only check for VC2015:
-# if !defined(Q_CC_MSVC) || defined(Q_CC_INTEL) || _MSC_VER >= 1900 // VS14 == VC2015
     // we require automatic generation of move special member functions:
     {
         struct M { MoveDefinedQString s1, s2; };
@@ -1288,7 +1286,6 @@ void tst_Compiler::cxx11_rvalue_refs()
         QCOMPARE(m3.s1, MoveDefinedQString("Hello"));
         QCOMPARE(m3.s2, MoveDefinedQString("World"));
     }
-# endif // MSVC < 2015
 #endif
 }
 

tests/auto/testlib/selftests/tst_selftests.cpp

@@ -690,8 +690,8 @@ void tst_Selftests::doRunSubTest(QString const& subdir, QStringList const& logge
         QList<QByteArray> res = splitLines(actualOutputs[n]);
         const QString expectedFileName = expectedFileNameFromTest(subdir, logger);
         QList<QByteArray> exp = expectedResult(expectedFileName);
-#if (defined (Q_CC_MSVC) && _MSC_VER < 1900)|| defined(Q_CC_MINGW)
+#ifdef Q_CC_MINGW
-        // MSVC up to MSVC2013, MinGW format double numbers differently
+        // MinGW formats double numbers differently
         if (n == 0 && subdir == QStringLiteral("float")) {
             for (int i = 0; i < exp.size(); ++i) {
                 exp[i].replace("e-07", "e-007");