💣 WIP write test

main.go

@@ -49,7 +49,7 @@ type Translation struct {
 	Text                  string `json:"text"`
 }
 
-func LoadSettings(setting Setting) (Setting, error) {
+func LoadSettings(setting Setting, automake bool) (Setting, error) {
 	if setting.AuthKey == "" {
 		return setting, fmt.Errorf("No deepl token is set.")
 	}
@@ -65,9 +65,11 @@ func LoadSettings(setting Setting) (Setting, error) {
 		bytes, err := ioutil.ReadFile(configPath)
 		if err != nil {
 			errStr := fmt.Errorf("Not exists such file. %s\n\tauto make it, please write it. ", configPath)
-			err := InitializeConfigFile(configPath)
-			if err != nil {
-				return setting, err
+			if automake {
+				err := InitializeConfigFile(configPath)
+				if err != nil {
+					return setting, err
+				}
 			}
 			return setting, errStr
 		}
@@ -133,7 +135,6 @@ func Translate(Text string, setting Setting) ([]string, error) {
 	}
 
 	return results, err
-
 }
 
 func ParseResponse(resp *http.Response) (Response, error) {
@@ -193,7 +194,7 @@ func main() {
 				SourceLang: c.String("source_lang"),
 				TargetLang: c.String("target_lang"),
 				AuthKey:    os.Getenv("DEEPL_TOKEN"),
-			})
+			}, true)
 			if err != nil {
 				return err
 			}

main_test.go

@@ -0,0 +1,58 @@
+package main
+
+import (
+	"testing"
+)
+
+func TestLoadsettings(t *testing.T) {
+	var setting Setting
+	var actual Setting
+	var err error
+	var errorText string
+
+	//
+	errorText = "The function should not overload SourceLang / TargetLang if eigher is not set."
+	setting = Setting{
+		AuthKey:    "test",
+		SourceLang: "EN",
+		TargetLang: "JA",
+	}
+	actual, err = LoadSettings(setting, false)
+	if err != nil {
+		t.Fatalf(errorText+"\n%#v", err)
+	}
+	if setting.AuthKey != actual.AuthKey ||
+		setting.SourceLang != actual.SourceLang ||
+		setting.TargetLang != actual.TargetLang {
+		t.Fatalf(errorText+"\nExpected: %#v\nActual: %#v", setting, actual)
+	}
+
+	//
+	errorText = "The function should occur error if AuthKey is not set."
+	expectedErrorText := "No deepl token is set." // DRY...
+	setting = Setting{
+		AuthKey:    "",
+		SourceLang: "EN",
+		TargetLang: "JA",
+	}
+	actual, err = LoadSettings(setting, false)
+	if err == nil {
+		t.Fatalf(errorText+"\nReturned: %#v", actual)
+	} else if err.Error() != expectedErrorText {
+		t.Fatalf(errorText+"\nExpected: %s\nActual: %s", expectedErrorText, err.Error())
+	}
+
+	//
+	errorText = "The function should occur error if SourceLang == TargetLang"
+	setting = Setting{
+		AuthKey:    "test",
+		SourceLang: "EN",
+		TargetLang: "EN",
+	}
+	actual, err = LoadSettings(setting, false)
+	if err == nil {
+		t.Fatalf(errorText+"\nInputed: %#v", setting)
+	}
+}
+
+func TestTranslate(t *testing.T) {}