Add test module

CMakeLists.txt

@@ -0,0 +1,13 @@
+cmake_minimum_required(VERSION 3.10)
+
+project(dbscan)
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED True)
+
+set(CMAKE_CXX_FLAGS "-std=c++17 -pthread -O3 -fPIC")
+
+add_subdirectory(executable)
+
+enable_testing()
+add_subdirectory(test)

src/dbscan/cell.h

@@ -21,6 +21,8 @@
 
 #pragma once
 
+#include "shared.h"
+#include "point.h"
 #include "grid.h"
 #include "pbbs/ndHash.h"
 

test/CMakeLists.txt

@@ -0,0 +1,57 @@
+cmake_minimum_required(VERSION 3.10)
+set(CMAKE_CXX_STANDARD 17)
+
+# check whether googletest is locally installed, if not download and fetch
+message(STATUS "--------------- GoogleTest -------------")
+find_package(GTest CONFIG)
+if(NOT GTest_FOUND)
+    # new way of including googletest
+    # Download and unpack googletest at configure time
+    configure_file(CMakeLists.txt.in googletest-download/CMakeLists.txt)
+    execute_process(COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}" .
+            RESULT_VARIABLE result
+            WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/test/googletest-download )
+    if(result)
+        message(FATAL_ERROR "CMake step for googletest failed: ${result}")
+    endif()
+    execute_process(COMMAND ${CMAKE_COMMAND} --build .
+            RESULT_VARIABLE result
+            WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/test/googletest-download )
+    if(result)
+        message(FATAL_ERROR "Build step for googletest failed: ${result}")
+    endif()
+
+    # Prevent overriding the parent project's compiler/linker
+    # settings on Windows
+    set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
+
+    # Add googletest directly to our build. This defines
+    # the gtest and gtest_main targets.
+    add_subdirectory(${CMAKE_BINARY_DIR}/googletest-src
+            ${CMAKE_BINARY_DIR}/googletest-build
+            EXCLUDE_FROM_ALL)
+    set(GTest_LIBRARIES "gtest")
+else()
+    message(STATUS "using locally installed GoogleTest")
+    set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
+    set(GTest_LIBRARIES GTest::gtest)
+endif()
+
+include(CTest)
+
+project(sourceFiles)
+add_library(sourceFiles INTERFACE)
+target_include_directories(sourceFiles INTERFACE ../src/)
+
+add_executable(grid_test grid_test.cpp)
+target_link_libraries(grid_test PRIVATE
+  sourceFiles
+  ${GTest_LIBRARIES})
+add_test(NAME grid_test COMMAND grid_test)
+
+# add_executable(dbscan_test dbscan_test.cpp)
+# target_link_libraries(dbscan_test PRIVATE
+#   gridLib
+#   dbscanLib
+#   ${GTest_LIBRARIES})
+# add_test(NAME dbscan_test COMMAND dbscan_test)

test/CMakeLists.txt.in

@@ -0,0 +1,15 @@
+cmake_minimum_required(VERSION 3.7)
+
+project(googletest-download NONE)
+
+include(ExternalProject)
+ExternalProject_Add(googletest
+  GIT_REPOSITORY    https://github.com/google/googletest.git
+  GIT_TAG           main
+  SOURCE_DIR        "${CMAKE_BINARY_DIR}/googletest-src"
+  BINARY_DIR        "${CMAKE_BINARY_DIR}/googletest-build"
+  CONFIGURE_COMMAND ""
+  BUILD_COMMAND     ""
+  INSTALL_COMMAND   ""
+  TEST_COMMAND      ""
+)

test/grid_test.cpp

@@ -0,0 +1,9 @@
+#include "dbscan/grid.h"
+#include "gtest/gtest.h"
+#include <iostream>
+#include <memory.h>
+
+int main(int argc, char **argv) {
+  ::testing::InitGoogleTest(&argc, argv);
+  return RUN_ALL_TESTS();
+}