test: setup gtest for project

Author: jochil

.gitignore

@@ -21,6 +21,7 @@ bld/
 [Bb]in/
 [Oo]bj/
 [Ll]og/
+cmake-build-debug/
 
 # Visual Studio 2015 cache/options directory
 .vs/

CMakeLists.txt

@@ -1,25 +1,24 @@
 cmake_minimum_required(VERSION 3.14 FATAL_ERROR)
 
 # ---- Project ----
-
 # Note: update this to your new project's name and version
 project(
-  Glob
-  VERSION 1.0
-  LANGUAGES CXX
+        Glob
+        VERSION 1.0
+        LANGUAGES CXX
 )
 
 # ---- Options ----
 option(GLOB_USE_GHC_FILESYSTEM "Use ghc::filesystem instead of std::filesystem" OFF)
 
 # ---- Include guards ----
 
-if(PROJECT_SOURCE_DIR STREQUAL PROJECT_BINARY_DIR)
-  message(
-    FATAL_ERROR
-      "In-source builds not allowed. Please make a new directory (called a build directory) and run CMake from there."
-  )
-endif()
+if (PROJECT_SOURCE_DIR STREQUAL PROJECT_BINARY_DIR)
+    message(
+            FATAL_ERROR
+            "In-source builds not allowed. Please make a new directory (called a build directory) and run CMake from there."
+    )
+endif ()
 
 # ---- Add dependencies via CPM ----
 # see https://github.com/TheLartians/CPM.cmake for more info
@@ -28,10 +27,20 @@ include(cmake/CPM.cmake)
 
 # PackageProject.cmake will be used to make our target installable
 CPMAddPackage(
-  NAME PackageProject.cmake
-  GITHUB_REPOSITORY TheLartians/PackageProject.cmake
-  VERSION 1.3
+        NAME PackageProject.cmake
+        GITHUB_REPOSITORY TheLartians/PackageProject.cmake
+        VERSION 1.3
+)
+
+CPMAddPackage(
+        NAME googletest
+        GITHUB_REPOSITORY google/googletest
+        GIT_TAG v1.16.0
+        VERSION 1.16.0
+        OPTIONS "INSTALL_GTEST OFF" "gtest_force_shared_crt"
 )
+# For Windows: Prevent overriding the parent project's compiler/linker settings
+set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
 
 # ---- Add source files ----
 
@@ -47,23 +56,23 @@ file(GLOB_RECURSE sources CONFIGURE_DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/source/
 # INTERFACE_COMPILE_FEATURES cxx_std_17)
 
 add_library(Glob ${headers} ${sources})
-SET_TARGET_PROPERTIES(Glob PROPERTIES OUTPUT_NAME glob)
+set_target_properties(Glob PROPERTIES OUTPUT_NAME glob)
 set_target_properties(Glob PROPERTIES CXX_STANDARD 17)
 
-if ( GLOB_USE_GHC_FILESYSTEM )
-  # Switch to ghc::filesystem.
-  target_link_libraries(Glob PRIVATE ghcFilesystem::ghc_filesystem)
-  target_compile_definitions(Glob PUBLIC GLOB_USE_GHC_FILESYSTEM)
-endif()
+if (GLOB_USE_GHC_FILESYSTEM)
+    # Switch to ghc::filesystem.
+    target_link_libraries(Glob PRIVATE ghcFilesystem::ghc_filesystem)
+    target_compile_definitions(Glob PUBLIC GLOB_USE_GHC_FILESYSTEM)
+endif ()
 
 # being a cross-platform target, we enforce standards conformance on MSVC
 target_compile_options(Glob PUBLIC "$<$<BOOL:${MSVC}>:/permissive->")
 
 # Link dependencies (if required) target_link_libraries(Glob PUBLIC cxxopts)
 
 target_include_directories(
-  Glob PUBLIC $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>
-                 $<INSTALL_INTERFACE:include/${PROJECT_NAME}-${PROJECT_VERSION}>
+        Glob PUBLIC $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>
+        $<INSTALL_INTERFACE:include/${PROJECT_NAME}-${PROJECT_VERSION}>
 )
 
 # ---- Create an installable target ----
@@ -74,11 +83,26 @@ target_include_directories(
 string(TOLOWER ${PROJECT_NAME}/version.h VERSION_HEADER_LOCATION)
 
 packageProject(
-  NAME ${PROJECT_NAME}
-  VERSION ${PROJECT_VERSION}
-  BINARY_DIR ${PROJECT_BINARY_DIR}
-  INCLUDE_DIR ${PROJECT_SOURCE_DIR}/include
-  INCLUDE_DESTINATION include/${PROJECT_NAME}-${PROJECT_VERSION}
-  VERSION_HEADER "${VERSION_HEADER_LOCATION}"
-  DEPENDENCIES ""
+        NAME ${PROJECT_NAME}
+        VERSION ${PROJECT_VERSION}
+        BINARY_DIR ${PROJECT_BINARY_DIR}
+        INCLUDE_DIR ${PROJECT_SOURCE_DIR}/include
+        INCLUDE_DESTINATION include/${PROJECT_NAME}-${PROJECT_VERSION}
+        VERSION_HEADER "${VERSION_HEADER_LOCATION}"
+        DEPENDENCIES ""
 )
+
+# --- setup tests ---
+enable_testing()
+
+add_executable(glob_tests test/rglob_test.cpp)
+set_property(TARGET glob_tests PROPERTY CXX_STANDARD 17)
+target_link_libraries(glob_tests PRIVATE gtest_main ${PROJECT_NAME})
+add_test(NAME glob_tests COMMAND glob_tests)
+
+add_executable(glob_tests_single test/rglob_test.cpp)
+set_property(TARGET glob_tests_single PROPERTY CXX_STANDARD 17)
+target_compile_definitions(glob_tests_single PRIVATE USE_SINGLE_HEADER=1)
+target_link_libraries(glob_tests_single PRIVATE gtest_main)
+target_include_directories(glob_tests_single PRIVATE single_include)
+add_test(NAME glob_tests_single COMMAND glob_tests_single)

test/rglob_test.cpp

@@ -0,0 +1,14 @@
+#include <gtest/gtest.h>
+
+
+#ifdef USE_SINGLE_HEADER
+#include "glob/glob.hpp"
+#else
+#include "glob/glob.h"
+#endif
+
+
+TEST(rglobTest, MatchNonExistent) {
+    auto matches = glob::rglob("non-existent/**");
+    EXPECT_EQ(matches.size(), 0);
+}