github.com/99designs/gqlgen@v0.17.45/codegen/testserver/singlefile/scalar_default_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 TestDefaultScalarImplementation(t *testing.T) {
    14  	resolvers := &Stub{}
    15  
    16  	c := client.New(handler.NewDefaultServer(NewExecutableSchema(Config{Resolvers: resolvers})))
    17  
    18  	resolvers.QueryResolver.DefaultScalar = func(ctx context.Context, arg string) (i string, e error) {
    19  		return arg, nil
    20  	}
    21  
    22  	t.Run("with arg value", func(t *testing.T) {
    23  		var resp struct{ DefaultScalar string }
    24  		c.MustPost(`query { defaultScalar(arg: "fff") }`, &resp)
    25  		require.Equal(t, "fff", resp.DefaultScalar)
    26  	})
    27  
    28  	t.Run("with default value", func(t *testing.T) {
    29  		var resp struct{ DefaultScalar string }
    30  		c.MustPost(`query { defaultScalar  }`, &resp)
    31  		require.Equal(t, "default", resp.DefaultScalar)
    32  	})
    33  }