github.com/99designs/gqlgen@v0.17.45/codegen/testserver/singlefile/slices_test.go (about)

     1  package singlefile
     2  
     3  import (
     4  	"context"
     5  	"testing"
     6  
     7  	"github.com/stretchr/testify/require"
     8  
     9  	"github.com/99designs/gqlgen/client"
    10  	"github.com/99designs/gqlgen/graphql/handler"
    11  )
    12  
    13  func TestSlices(t *testing.T) {
    14  	resolvers := &Stub{}
    15  
    16  	c := client.New(handler.NewDefaultServer(NewExecutableSchema(Config{Resolvers: resolvers})))
    17  
    18  	t.Run("nulls vs empty slices", func(t *testing.T) {
    19  		resolvers.QueryResolver.Slices = func(ctx context.Context) (slices *Slices, e error) {
    20  			return &Slices{}, nil
    21  		}
    22  
    23  		var resp struct {
    24  			Slices Slices
    25  		}
    26  		c.MustPost(`query { slices { test1, test2, test3, test4 }}`, &resp)
    27  		require.Nil(t, resp.Slices.Test1)
    28  		require.Nil(t, resp.Slices.Test2)
    29  		require.NotNil(t, resp.Slices.Test3)
    30  		require.NotNil(t, resp.Slices.Test4)
    31  	})
    32  
    33  	t.Run("custom scalars to slices work", func(t *testing.T) {
    34  		resolvers.QueryResolver.ScalarSlice = func(ctx context.Context) ([]byte, error) {
    35  			return []byte("testing"), nil
    36  		}
    37  
    38  		var resp struct {
    39  			ScalarSlice string
    40  		}
    41  		c.MustPost(`query { scalarSlice }`, &resp)
    42  		require.Equal(t, "testing", resp.ScalarSlice)
    43  	})
    44  }