CMake build: Add unittest CMake build files

On MinGW 8.1 I get the following after running ctest -j 40

99% tests passed, 35 tests failed out of 2631

Change-Id: I2c3ce7940b036e52ef393feab5837886355e7b5a
Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>

2 files changed, 184 insertions, 0 deletions

diff --git a/cmake/FindGoogleBenchmark.cmake b/cmake/FindGoogleBenchmark.cmake
new file mode 100644
index 0000000000..ce2cf3f66d
--- /dev/null
+++ b/cmake/FindGoogleBenchmark.cmake
@@ -0,0 +1,82 @@
+#.rst:
+# FindGoogleBenchmark
+# -----------------
+#
+# Try to locate the GoogleBenchmark source files, and then build them as a
+# static library.
+#
+# The ``GOOGLEBENCHMARK_DIR`` (CMake or Environment) variable should be used
+# to pinpoint the GoogleBenchmark source files.
+#
+# If found, this will define the following variables:
+#
+# ``GoogleBenchmark_FOUND``
+#     True if the GoogleBenchmark source package has been found.
+#
+# ``GoogleBenchmark``
+#     Target compiled as static library.
+#
+
+find_path(GOOGLE_BENCHMARK_INCLUDE_DIR
+  NAMES benchmark/benchmark.h
+  PATH_SUFFIXES include
+  HINTS
+    "${GOOGLEBENCHMARK_DIR}" ENV GOOGLEBENCHMARK_DIR
+    "${CMAKE_SOURCE_DIR}/../benchmark"
+    "${CMAKE_SOURCE_DIR}/../../benchmark"
+)
+
+find_path(GOOGLE_BENCHMARK_SRC_DIR
+  NAMES benchmark.cc
+  PATH_SUFFIXES src
+  HINTS
+    "${GOOGLEBENCHMARK_DIR}" ENV GOOGLEBENCHMARK_DIR
+    "${CMAKE_SOURCE_DIR}/../benchmark"
+    "${CMAKE_SOURCE_DIR}/../../benchmark"
+)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(GoogleBenchmark
+  DEFAULT_MSG
+    GOOGLE_BENCHMARK_INCLUDE_DIR GOOGLE_BENCHMARK_SRC_DIR
+)
+
+if(GoogleBenchmark_FOUND AND NOT TARGET GoogleBenchmark)
+  add_library(GoogleBenchmark STATIC
+    "${GOOGLE_BENCHMARK_SRC_DIR}/benchmark.cc"
+    "${GOOGLE_BENCHMARK_SRC_DIR}/benchmark_api_internal.cc"
+    "${GOOGLE_BENCHMARK_SRC_DIR}/benchmark_name.cc"
+    "${GOOGLE_BENCHMARK_SRC_DIR}/benchmark_register.cc"
+    "${GOOGLE_BENCHMARK_SRC_DIR}/benchmark_runner.cc"
+    "${GOOGLE_BENCHMARK_SRC_DIR}/colorprint.cc"
+    "${GOOGLE_BENCHMARK_SRC_DIR}/commandlineflags.cc"
+    "${GOOGLE_BENCHMARK_SRC_DIR}/complexity.cc"
+    "${GOOGLE_BENCHMARK_SRC_DIR}/console_reporter.cc"
+    "${GOOGLE_BENCHMARK_SRC_DIR}/counter.cc"
+    "${GOOGLE_BENCHMARK_SRC_DIR}/csv_reporter.cc"
+    "${GOOGLE_BENCHMARK_SRC_DIR}/json_reporter.cc"
+    "${GOOGLE_BENCHMARK_SRC_DIR}/reporter.cc"
+    "${GOOGLE_BENCHMARK_SRC_DIR}/sleep.cc"
+    "${GOOGLE_BENCHMARK_SRC_DIR}/statistics.cc"
+    "${GOOGLE_BENCHMARK_SRC_DIR}/string_util.cc"
+    "${GOOGLE_BENCHMARK_SRC_DIR}/sysinfo.cc"
+    "${GOOGLE_BENCHMARK_SRC_DIR}/timers.cc"
+  )
+  target_include_directories(GoogleBenchmark
+    PUBLIC
+      "${GOOGLE_BENCHMARK_INCLUDE_DIR}"
+    PRIVATE
+      "${GOOGLE_BENCHMARK_SRC_DIR}"
+  )
+  target_compile_definitions(GoogleBenchmark PRIVATE HAVE_STD_REGEX WITH_BENCHMARKS)
+  if (WIN32)
+    target_link_libraries(GoogleBenchmark PRIVATE shlwapi)
+  endif()
+endif()
+
+mark_as_advanced(GOOGLE_BENCHMARK_INCLUDE_DIR GOOGLE_BENCHMARK_SRC_DIR)
+
+include(FeatureSummary)
+set_package_properties(GoogleBenchmark PROPERTIES
+  URL "https://github.com/google/benchmark"
+  DESCRIPTION "A microbenchmark support library")
diff --git a/cmake/FindGoogletest.cmake b/cmake/FindGoogletest.cmake
new file mode 100644
index 0000000000..b73f7680fc
--- /dev/null
+++ b/cmake/FindGoogletest.cmake
@@ -0,0 +1,102 @@
+#.rst:
+# FindGoogletest
+# -----------------
+#
+# Try to locate the Googletest source files, and then build them as a
+# static library.
+#
+# The ``GOOGLETEST_DIR`` (CMake or Environment) variable should be used
+# to pinpoint the Googletest source files.
+#
+# If found, this will define the following variables:
+#
+# ``Googletest_FOUND``
+#     True if the Googletest source package has been found.
+#
+# ``Googletest``
+#     Target compiled as static library.
+#
+
+find_path(GOOGLE_TEST_INCLUDE_DIR
+  NAMES gtest/gtest.h
+  PATH_SUFFIXES googletest/include
+  HINTS
+    "${GOOGLETEST_DIR}" ENV GOOGLETEST_DIR
+    "${CMAKE_SOURCE_DIR}/../googletest"
+    "${CMAKE_SOURCE_DIR}/../../googletest"
+)
+
+find_path(GOOGLE_TEST_SRC_ALL
+  NAMES gtest-all.cc
+  PATH_SUFFIXES googletest/src
+  HINTS
+    "${GOOGLETEST_DIR}" ENV GOOGLETEST_DIR
+    "${CMAKE_SOURCE_DIR}/../googletest"
+    "${CMAKE_SOURCE_DIR}/../../googletest"
+)
+
+
+find_path(GOOGLE_MOCK_INCLUDE_DIR
+  NAMES gmock/gmock.h
+  PATH_SUFFIXES googlemock/include
+  HINTS
+    "${GOOGLETEST_DIR}" ENV GOOGLETEST_DIR
+    "${CMAKE_SOURCE_DIR}/../googletest"
+    "${CMAKE_SOURCE_DIR}/../../googletest"
+)
+
+find_path(GOOGLE_MOCK_SRC_ALL
+  NAMES gmock-all.cc
+  PATH_SUFFIXES googlemock/src
+  HINTS
+    "${GOOGLETEST_DIR}" ENV GOOGLETEST_DIR
+    "${CMAKE_SOURCE_DIR}/../googletest"
+    "${CMAKE_SOURCE_DIR}/../../googletest"
+)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(Googletest
+  DEFAULT_MSG
+    GOOGLE_TEST_INCLUDE_DIR GOOGLE_MOCK_INCLUDE_DIR
+    GOOGLE_TEST_SRC_ALL GOOGLE_MOCK_SRC_ALL
+)
+
+if(Googletest_FOUND AND NOT TARGET Googletest)
+  add_library(Googletest STATIC
+    "${GOOGLE_TEST_SRC_ALL}/gtest-all.cc"
+    "${GOOGLE_MOCK_SRC_ALL}/gmock-all.cc"
+  )
+  target_include_directories(Googletest
+    PUBLIC
+      "${GOOGLE_TEST_INCLUDE_DIR}"
+      "${GOOGLE_MOCK_INCLUDE_DIR}"
+    PRIVATE
+      "${GOOGLE_TEST_SRC_ALL}/.."
+      "${GOOGLE_MOCK_SRC_ALL}/.."
+  )
+  target_compile_definitions(Googletest
+    PRIVATE
+      GTEST_HAS_STD_INITIALIZER_LIST_
+      GTEST_LANG_CXX11
+      GTEST_HAS_STD_TUPLE_
+      GTEST_HAS_STD_TYPE_TRAITS_
+      GTEST_HAS_STD_FUNCTION_
+      GTEST_HAS_RTTI
+      GTEST_HAS_STD_BEGIN_AND_END_
+      GTEST_HAS_STD_UNIQUE_PTR_
+      GTEST_HAS_EXCEPTIONS
+      GTEST_HAS_STREAM_REDIRECTION
+      GTEST_HAS_TYPED_TEST
+      GTEST_HAS_TYPED_TEST_P
+      GTEST_HAS_PARAM_TEST
+      GTEST_HAS_DEATH_TEST
+   )
+endif()
+
+mark_as_advanced(GOOGLE_TEST_INCLUDE_DIR GOOGLE_MOCK_INCLUDE_DIR
+  GOOGLE_TEST_SRC_ALL GOOGLE_MOCK_SRC_ALL)
+
+include(FeatureSummary)
+set_package_properties(Googletest PROPERTIES
+  URL "https://github.com/google/googletest"
+  DESCRIPTION "Google Testing and Mocking Framework")