初始化

API/internal/drama/content.go

@@ -0,0 +1,20 @@
+package drama
+
+import (
+	"fmt"
+	"strings"
+	"unicode/utf8"
+)
+
+const MaxEpisodeCharacters = 5000
+
+func ValidateEpisodeContent(content string) error {
+	count := utf8.RuneCountInString(strings.TrimSpace(content))
+	if count == 0 {
+		return fmt.Errorf("剧集原文不能为空")
+	}
+	if count > MaxEpisodeCharacters {
+		return fmt.Errorf("每集原文不能超过%d字，当前%d字", MaxEpisodeCharacters, count)
+	}
+	return nil
+}

API/internal/drama/content_test.go

@@ -0,0 +1,18 @@
+package drama
+
+import (
+	"strings"
+	"testing"
+)
+
+func TestValidateEpisodeContent(t *testing.T) {
+	if err := ValidateEpisodeContent(strings.Repeat("字", MaxEpisodeCharacters)); err != nil {
+		t.Fatalf("expected content at limit to pass: %v", err)
+	}
+	if err := ValidateEpisodeContent(strings.Repeat("字", MaxEpisodeCharacters+1)); err == nil {
+		t.Fatal("expected over-limit content to fail")
+	}
+	if err := ValidateEpisodeContent("  \n\t"); err == nil {
+		t.Fatal("expected blank content to fail")
+	}
+}