test: make testsuite compatible with clang

In modern clang versions, we run into gtest#2271.
As it looks like this issue will be there for some time,
we simply apply the proposed workaround.

Author: fmoessbauer

test/.StaticInterfaceTests.cpp.swp

@@ -11,8 +11,8 @@ using namespace libmvc;
 template<typename SOLVER>
 class InterfaceTests: public ::testing::Test { };
 
-typedef ::testing::Types<NuMVC, FastVC, ParallelSolverAdapter<NuMVC>, ParallelSolverAdapter<FastVC>> SolverTypes;
-TYPED_TEST_CASE(InterfaceTests, SolverTypes);
+using SolverTypes = ::testing::Types<NuMVC, FastVC, ParallelSolverAdapter<NuMVC>, ParallelSolverAdapter<FastVC>>;
+TYPED_TEST_SUITE(InterfaceTests, SolverTypes, );
 
 extern std::string filename;
 extern int cover_size;

test/InterfaceTests.cpp

@@ -11,8 +11,8 @@ using namespace libmvc;
 template<typename SOLVER>
 class SolverTests : public ::testing::Test { };
 
-typedef ::testing::Types<NuMVC, FastVC, ParallelSolverAdapter<NuMVC>, ParallelSolverAdapter<FastVC>> SolverTypes;
-TYPED_TEST_CASE(SolverTests, SolverTypes);
+using SolverTypes = ::testing::Types<NuMVC, FastVC, ParallelSolverAdapter<NuMVC>, ParallelSolverAdapter<FastVC>>;
+TYPED_TEST_SUITE(SolverTests, SolverTypes, );
 
 extern std::string filename;
 extern int cover_size;

test/SolverTests.cpp

@@ -0,0 +1,10 @@
+Build started at 2018-05-02T15:32:50.965794
+Main binary: /usr/bin/python3
+Python system: Linux
+The Meson build system
+Version: 0.45.1
+Source dir: /home/felix/repos/github-fmoessbauer/LibMVC/test
+Build dir: /home/felix/repos/github-fmoessbauer/LibMVC/test/build
+Build type: native build
+
+ERROR: First statement must be a call to project