fixed an issue with first run license validation, tests added

go.mod

@@ -9,7 +9,7 @@ require (
 	github.com/lunixbochs/vtclean v1.0.0
 	github.com/mattn/go-runewidth v0.0.4
 	github.com/mbndr/figlet4go v0.0.0-20190224160619-d6cef5b186ea
-	github.com/mitchellh/go-homedir v1.1.0 // indirect
+	github.com/mitchellh/go-homedir v1.1.0
 	github.com/mitchellh/go-wordwrap v1.0.0 // indirect
 	gopkg.in/yaml.v3 v3.0.0-20190709130402-674ba3eaed22
 )

metadata/license.go

@@ -42,6 +42,8 @@ func GetLicense() *License {
 
 func SaveLicense(license License) {
 
+	initStorage()
+
 	file, err := yaml.Marshal(license)
 	if err != nil {
 		log.Fatalf("Failed to marshal license file: %v", err)

metadata/license_test.go

@@ -0,0 +1,38 @@
+package metadata
+
+import (
+	"os"
+	"testing"
+)
+
+func Test_getEmptyLicense(t *testing.T) {
+
+	cleanupPlatformStorage()
+	license := GetLicense()
+
+	if license != nil {
+		t.Errorf("expected to be nil")
+	}
+}
+
+func Test_saveAndGetExistingLicense(t *testing.T) {
+
+	cleanupPlatformStorage()
+
+	original := License{
+		Valid: true,
+	}
+
+	SaveLicense(original)
+
+	retrieved := *GetLicense()
+
+	if original != retrieved {
+		t.Errorf("read file != saved file")
+	}
+}
+
+func cleanupPlatformStorage() {
+	_ = os.RemoveAll(getPlatformStoragePath(""))
+	_ = os.Remove(getPlatformStoragePath(""))
+}