add gtest support for xmake

Author: star-hengxing

.gitignore

@@ -30,3 +30,7 @@
 *.exe
 *.out
 *.app
+
+.vscode/
+.xmake/
+build/

xmake.lua

@@ -2,11 +2,13 @@ set_project("magic")
 
 set_version("0.0.1")
 
-set_xmakever("2.8.5")
+set_xmakever("2.8.6")
 
 set_allowedplats("windows")
 set_allowedmodes("debug", "release")
 
+option("test", {showmenu = true,  default = false})
+
 set_languages("c++20")
 
 set_warnings("all")
@@ -17,18 +19,21 @@ if is_plat("windows") then
     add_cxflags("/permissive-", {tools = "cl"})
 end
 
+if has_config("test") then
+    add_requires("gtest", {configs = {main = true, gmock = false}})
+end
+
 target("magic")
     set_kind("headeronly")
     add_includedirs("include", {interface = true})
     add_headerfiles("include/(magic/*.h)")
 
-for _, file in ipairs(os.files("test/*.cpp")) do
-    local name = path.basename(file)
-    target(name)
-        set_kind("object")
-        set_default(false)
-        add_files(file)
+target("test")
+    set_kind("binary")
+    set_default(false)
+    add_files(os.files("test/*.cpp"))
+
+    add_deps("magic")
+    add_packages("gtest")
 
-        add_deps("magic")
-        add_tests("default", {build_should_pass = true})
-end
+    add_tests("default")