新增支付配置备份导入

backend/internal/modules/paymentconfig/repository_test.go

@@ -0,0 +1,35 @@
+package paymentconfig
+
+import "testing"
+
+func TestImportCreateRequestKeepsOnlyOneActiveConfig(t *testing.T) {
+	configs := []ConfigDTO{
+		{Provider: "lakala", MerchantID: "M1", Status: "active", IsDefault: true},
+		{Provider: "leshua", MerchantID: "M2", Status: "active", IsDefault: false},
+	}
+	activeKey := backupActiveKey(configs)
+
+	first := importCreateRequest(configs[0], activeKey)
+	second := importCreateRequest(configs[1], activeKey)
+
+	if first.Status != "active" || !first.IsDefault {
+		t.Fatalf("first config status/default = %s/%v, want active/true", first.Status, first.IsDefault)
+	}
+	if second.Status != "disabled" || second.IsDefault {
+		t.Fatalf("second config status/default = %s/%v, want disabled/false", second.Status, second.IsDefault)
+	}
+}
+
+func TestImportCreateRequestPreservesTestingConfig(t *testing.T) {
+	cfg := ConfigDTO{
+		Provider:   "lakala",
+		MerchantID: "M1",
+		Status:     "testing",
+	}
+
+	req := importCreateRequest(cfg, "")
+
+	if req.Status != "testing" || req.IsDefault {
+		t.Fatalf("status/default = %s/%v, want testing/false", req.Status, req.IsDefault)
+	}
+}