refactor: implement mocking functions and tests

magefile.go

@@ -19,7 +19,7 @@ import (
 func Build() error {
 	mg.Deps(InstallDeps)
 	fmt.Println("Building...")
-	cmd := exec.Command("go", "build", "-o", "MyApp", ".")
+	cmd := exec.Command("go", "build", "-o", "system_setup_tool", ".")
 	return cmd.Run()
 }
 
@@ -27,7 +27,7 @@ func Build() error {
 func Install() error {
 	mg.Deps(Build)
 	fmt.Println("Installing...")
-	return os.Rename("./MyApp", "/usr/bin/MyApp")
+	return os.Rename("./system_setup_tool", "/usr/bin/system_setup_tool")
 }
 
 // Manage your deps, or running package managers.
@@ -56,3 +56,10 @@ func Lint() error {
 	cmd := exec.Command("golangci-lint", "./...")
 	return cmd.Run()
 }
+
+// perform all modul tests
+func Test() error {
+	fmt.Println("Testing...")
+	cmd := exec.Command("go", "test", "./...")
+	return cmd.Run()
+}