github.com/mstephano/gqlgen-schemagen@v0.0.0-20230113041936-dd2cd4ea46aa/graphql/handler/apollofederatedtracingv1/tracing_test.go (about)

     1  package apollofederatedtracingv1_test
     2  
     3  import (
     4  	"context"
     5  	"encoding/base64"
     6  	"encoding/json"
     7  	"fmt"
     8  	"net/http"
     9  	"net/http/httptest"
    10  	"strings"
    11  	"testing"
    12  	"time"
    13  
    14  	"github.com/mstephano/gqlgen-schemagen/graphql"
    15  	"github.com/mstephano/gqlgen-schemagen/graphql/handler/apollofederatedtracingv1"
    16  	"github.com/mstephano/gqlgen-schemagen/graphql/handler/apollofederatedtracingv1/generated"
    17  	"github.com/mstephano/gqlgen-schemagen/graphql/handler/apollotracing"
    18  	"github.com/mstephano/gqlgen-schemagen/graphql/handler/extension"
    19  	"github.com/mstephano/gqlgen-schemagen/graphql/handler/lru"
    20  	"github.com/mstephano/gqlgen-schemagen/graphql/handler/testserver"
    21  	"github.com/mstephano/gqlgen-schemagen/graphql/handler/transport"
    22  	"github.com/stretchr/testify/assert"
    23  	"github.com/stretchr/testify/require"
    24  	"github.com/vektah/gqlparser/v2/gqlerror"
    25  	"google.golang.org/protobuf/proto"
    26  )
    27  
    28  func TestApolloTracing(t *testing.T) {
    29  	h := testserver.New()
    30  	h.AddTransport(transport.POST{})
    31  	h.Use(&apollofederatedtracingv1.Tracer{})
    32  	h.Use(&delayMiddleware{})
    33  
    34  	resp := doRequest(h, http.MethodPost, "/graphql", `{"query":"{ name }"}`)
    35  	assert.Equal(t, http.StatusOK, resp.Code, resp.Body.String())
    36  	var respData struct {
    37  		Extensions struct {
    38  			FTV1 string `json:"ftv1"`
    39  		} `json:"extensions"`
    40  	}
    41  	require.NoError(t, json.Unmarshal(resp.Body.Bytes(), &respData))
    42  
    43  	tracing := respData.Extensions.FTV1
    44  	pbuf, err := base64.StdEncoding.DecodeString(tracing)
    45  	require.Nil(t, err)
    46  
    47  	ftv1 := &generated.Trace{}
    48  	err = proto.Unmarshal(pbuf, ftv1)
    49  	require.Nil(t, err)
    50  
    51  	require.NotZero(t, ftv1.StartTime.Nanos)
    52  	require.Less(t, ftv1.StartTime.Nanos, ftv1.EndTime.Nanos)
    53  	require.EqualValues(t, ftv1.EndTime.Nanos-ftv1.StartTime.Nanos, ftv1.DurationNs)
    54  
    55  	fmt.Printf("%#v\n", resp.Body.String())
    56  	require.Equal(t, "Query", ftv1.Root.Child[0].ParentType)
    57  	require.Equal(t, "name", ftv1.Root.Child[0].GetResponseName())
    58  	require.Equal(t, "String!", ftv1.Root.Child[0].Type)
    59  }
    60  
    61  func TestApolloTracing_Concurrent(t *testing.T) {
    62  	h := testserver.New()
    63  	h.AddTransport(transport.POST{})
    64  	h.Use(&apollofederatedtracingv1.Tracer{})
    65  	for i := 0; i < 2; i++ {
    66  		go func() {
    67  			resp := doRequest(h, http.MethodPost, "/graphql", `{"query":"{ name }"}`)
    68  			assert.Equal(t, http.StatusOK, resp.Code, resp.Body.String())
    69  			var respData struct {
    70  				Extensions struct {
    71  					FTV1 string `json:"ftv1"`
    72  				} `json:"extensions"`
    73  			}
    74  			require.NoError(t, json.Unmarshal(resp.Body.Bytes(), &respData))
    75  
    76  			tracing := respData.Extensions.FTV1
    77  			pbuf, err := base64.StdEncoding.DecodeString(tracing)
    78  			require.Nil(t, err)
    79  
    80  			ftv1 := &generated.Trace{}
    81  			err = proto.Unmarshal(pbuf, ftv1)
    82  			require.Nil(t, err)
    83  			require.NotZero(t, ftv1.StartTime.Nanos)
    84  		}()
    85  	}
    86  }
    87  
    88  func TestApolloTracing_withFail(t *testing.T) {
    89  	h := testserver.New()
    90  	h.AddTransport(transport.POST{})
    91  	h.Use(extension.AutomaticPersistedQuery{Cache: lru.New(100)})
    92  	h.Use(apollotracing.Tracer{})
    93  
    94  	resp := doRequest(h, http.MethodPost, "/graphql", `{"operationName":"A","extensions":{"persistedQuery":{"version":1,"sha256Hash":"338bbc16ac780daf81845339fbf0342061c1e9d2b702c96d3958a13a557083a6"}}}`)
    95  	assert.Equal(t, http.StatusOK, resp.Code, resp.Body.String())
    96  	b := resp.Body.Bytes()
    97  	t.Log(string(b))
    98  	var respData struct {
    99  		Errors gqlerror.List
   100  	}
   101  	require.NoError(t, json.Unmarshal(b, &respData))
   102  	require.Len(t, respData.Errors, 1)
   103  	require.Equal(t, "PersistedQueryNotFound", respData.Errors[0].Message)
   104  }
   105  
   106  func doRequest(handler http.Handler, method, target, body string) *httptest.ResponseRecorder {
   107  	r := httptest.NewRequest(method, target, strings.NewReader(body))
   108  	r.Header.Set("Content-Type", "application/json")
   109  	r.Header.Set("apollo-federation-include-trace", "ftv1")
   110  	w := httptest.NewRecorder()
   111  
   112  	handler.ServeHTTP(w, r)
   113  	return w
   114  }
   115  
   116  type delayMiddleware struct{}
   117  
   118  func (*delayMiddleware) InterceptOperation(ctx context.Context, next graphql.OperationHandler) graphql.ResponseHandler {
   119  	time.Sleep(time.Millisecond)
   120  	return next(ctx)
   121  }
   122  
   123  func (*delayMiddleware) ExtensionName() string {
   124  	return "delay"
   125  }
   126  
   127  func (*delayMiddleware) Validate(schema graphql.ExecutableSchema) error {
   128  	return nil
   129  }