feat(*): 模型计费与渠道目录 - 支持视频 Token 报价结算和稳定模型展示

backend/internal/database/channel_model_description_test.go

@@ -0,0 +1,40 @@
+package database
+
+import "testing"
+
+func TestChannelModelDescriptionMigration(t *testing.T) {
+	db, err := Open(Config{Driver: "sqlite", DSN: ":memory:"})
+	if err != nil {
+		t.Fatal(err)
+	}
+	for _, sql := range []string{
+		`CREATE TABLE channel_models (id TEXT PRIMARY KEY, model_key TEXT, channel_label TEXT, unit_price_microcredits INTEGER)`,
+		`INSERT INTO channel_models VALUES ('model-a', 'seedance-2.0', '优惠渠道-993', 300000)`,
+	} {
+		if err := db.Exec(sql).Error; err != nil {
+			t.Fatal(err)
+		}
+	}
+	for i := 0; i < 2; i++ {
+		if err := migrateChannelModelDescription(db); err != nil {
+			t.Fatal(err)
+		}
+	}
+	var row struct {
+		ModelKey, ChannelLabel, Description string
+		UnitPriceMicrocredits               int64
+	}
+	if err := db.Table("channel_models").Where("id = ?", "model-a").First(&row).Error; err != nil {
+		t.Fatal(err)
+	}
+	if row.ModelKey != "seedance-2.0" || row.ChannelLabel != "优惠渠道-993" || row.UnitPriceMicrocredits != 300000 || row.Description != "" {
+		t.Fatalf("migration changed existing data: %#v", row)
+	}
+	if err := db.Exec(`INSERT INTO channel_models (id) VALUES ('model-b')`).Error; err != nil {
+		t.Fatal(err)
+	}
+	var count int64
+	if err := db.Table("channel_models").Where("description = ''").Count(&count).Error; err != nil || count != 2 {
+		t.Fatalf("description default missing: count=%d err=%v", count, err)
+	}
+}