author is now on separate table

internal/apitest/post_book_test.go

@@ -11,11 +11,20 @@ import (
 	"github.com/stretchr/testify/assert"
 )
 
-func TestPostBookHandler_Ok(t *testing.T) {
+func TestPostBookHandler_OkAuthorExist(t *testing.T) {
 	bookJson :=
 		`{
-		  "title": "Le château",
-			"author": "Kafka"
+		  "title": "Le Procès",
+			"author": "Franz Kafka"
+		}`
+	testPostBookHandler(t, bookJson, 200)
+}
+
+func TestPostBookHandler_OkNewAuthor(t *testing.T) {
+	bookJson :=
+		`{
+		  "title": "Le joueur d'échecs",
+			"author": "Stefan Zweig"
 		}`
 	testPostBookHandler(t, bookJson, 200)
 }
@@ -23,7 +32,7 @@ func TestPostBookHandler_Ok(t *testing.T) {
 func TestPostBookHandler_OkOnlyTitle(t *testing.T) {
 	bookJson :=
 		`{
-		  "title": "Le château"
+		  "title": "Le Procès"
 		}`
 	testPostBookHandler(t, bookJson, 200)
 }