错误：suite.go:61：测试恐慌：反射：输入参数太少的调用

Question

我在golang.
但是现在我在运行时遇到错误go test -v。
我想解决这个错误并使测试成功。

article
  ? client
  ? api
  ?  ? main.go
  ?  ? contoroller
  ?  ?    ? contoroller.go
  ?  ?    ? contoroller_test.go
  ?  ? service
  ?  ?    ? service.go
  ?  ?    ? service_test.go
  ?  ? dao
  ?  ?    ? dao.go
  ?  ?    ? dao_test.go
  ?  ? s3
  ?  ?    ? s3.go
  ?  ?    ? s3_test.go
  ?  ? go.mod 
  ?  ? go.sum
  ?  ? Dockerfile
  ? nginx
  ? docker-compose.yml

现在我正在service_test.go为service.go.

service_test.go

article
  ? client
  ? api
  ?  ? main.go
  ?  ? contoroller
  ?  ?    ? contoroller.go
  ?  ?    ? contoroller_test.go
  ?  ? service
  ?  ?    ? service.go
  ?  ?    ? service_test.go
  ?  ? dao
  ?  ?    ? dao.go
  ?  ?    ? dao_test.go
  ?  ? s3
  ?  ?    ? s3.go
  ?  ?    ? s3_test.go
  ?  ? go.mod 
  ?  ? go.sum
  ?  ? Dockerfile
  ? nginx
  ? docker-compose.yml

service.go

package service

// import

type MockDaoInterface struct {
}

func (_m *MockDaoInterface) GetArticleDao() *sql.Rows {
    db, mock, _ := sqlmock.New()
    mockRows := mock.NewRows([]string{"id", "uuid", "title", "content"}).
        AddRow(1, "bea1b24d-0627-4ea0-aa2b-8af4c6c2a41c", "test", "test").
        AddRow(2, "844bc620-7336-41a3-9cb4-552a0024ff1c", "test2", "test2")
    mock.ExpectQuery("select").WillReturnRows(mockRows)
    rows, _ := db.Query("select")
    return rows
}


type ServiceSuite struct {
    suite.Suite
    service *Service
    dao     dao.DaoInterface
}

func (s *ServiceSuite) SetupTest() {
    s.service = NewService(s.dao)
    s.service.dao = &MockDaoInterface{}
}

func (s *ServiceSuite) TestGetArticleService(t *testing.T) {

    articles := s.service.GetArticleService()

    var expectedArticles []util.Article

    expectedArticle1 := util.Article{
        ID:      1,
        UUID:    "bea1b24d-0627-4ea0-aa2b-8af4c6c2a41c",
        TITLE:   "test",
        CONTENT: "test",
    }
    expectedArticles = append(expectedArticles, expectedArticle1)

    expectedArticle2 := util.Article{
        ID:      2,
        UUID:    "844bc620-7336-41a3-9cb4-552a0024ff1c",
        TITLE:   "test2",
        CONTENT: "test2",
    }
    expectedArticles = append(expectedArticles, expectedArticle2)

    assert.Equal(s.T(), expectedArticles, articles)
}

func TestServiceSuite(t *testing.T) {
    suite.Run(t, new(ServiceSuite))
}

道去

package service

// import 

type Service struct {
    dao dao.DaoInterface
}

func NewService(dao dao.DaoInterface) *Service {
    return &Service{dao: dao}
}

func (s Service) GetArticleService() []util.Article {
    var articles []util.Article

    results := s.dao.GetArticleDao()

    article := util.Article{}
    for results.Next() {
        err := results.Scan(&article.ID, &article.UUID, &article.TITLE, &article.CONTENT)
        if err != nil {
            panic(err.Error())
        } else {
            articles = append(articles, article)
        }
    }
    return articles
}

这是完整的源代码（分支：go-test-service）
https://github.com/jpskgc/article/tree/go-test-service

我期待service_test.go成功测试。
但实际情况是它因错误而失败。
我想解决这个错误并成功测试。

$ go test -v
=== RUN   TestServiceSuite
=== RUN   TestServiceSuite/TestGetArticleService
--- FAIL: TestServiceSuite (0.00s)
    --- FAIL: TestServiceSuite/TestGetArticleService (0.00s)
        suite.go:61: test panicked: reflect: Call with too few input arguments
FAIL
exit status 1
FAIL    article/api/service     0.045s

Answer 1

它通过t *testing.T从 aurgument 中删除来解决。

func (s *ServiceSuite) TestGetArticleService() {
// some code
}