github.com/99designs/gqlgen@v0.17.45/graphql/handler/transport/http_graphql_test.go (about)

     1  package transport_test
     2  
     3  import (
     4  	"fmt"
     5  	"net/http"
     6  	"net/http/httptest"
     7  	"strings"
     8  	"testing"
     9  
    10  	"github.com/stretchr/testify/assert"
    11  
    12  	"github.com/99designs/gqlgen/graphql/handler/testserver"
    13  	"github.com/99designs/gqlgen/graphql/handler/transport"
    14  )
    15  
    16  func TestGRAPHQL(t *testing.T) {
    17  	h := testserver.New()
    18  	h.AddTransport(transport.GRAPHQL{})
    19  
    20  	t.Run("success", func(t *testing.T) {
    21  		resp := doGraphqlRequest(h, "POST", "/graphql", `{ name }`)
    22  		assert.Equal(t, http.StatusOK, resp.Code)
    23  		assert.Equal(t, `{"data":{"name":"test"}}`, resp.Body.String())
    24  	})
    25  
    26  	t.Run("success even if url encoded", func(t *testing.T) {
    27  		resp := doGraphqlRequest(h, "POST", "/graphql", `%7B%20name%20%7D`)
    28  		assert.Equal(t, http.StatusOK, resp.Code)
    29  		assert.Equal(t, `{"data":{"name":"test"}}`, resp.Body.String())
    30  	})
    31  
    32  	t.Run("parse failure", func(t *testing.T) {
    33  		resp := doGraphqlRequest(h, "POST", "/graphql", `{"!"}`)
    34  		assert.Equal(t, http.StatusUnprocessableEntity, resp.Code, resp.Body.String())
    35  		assert.Equal(t, resp.Header().Get("Content-Type"), "application/json")
    36  		assert.Equal(t, `{"errors":[{"message":"Expected Name, found String","locations":[{"line":1,"column":3}],"extensions":{"code":"GRAPHQL_PARSE_FAILED"}}],"data":null}`, resp.Body.String())
    37  	})
    38  
    39  	t.Run("parse query failure", func(t *testing.T) {
    40  		resp := doGraphqlRequest(h, "POST", "/graphql", `%7B%H7U6Z`)
    41  		assert.Equal(t, http.StatusUnprocessableEntity, resp.Code, resp.Body.String())
    42  		assert.Equal(t, resp.Header().Get("Content-Type"), "application/json")
    43  		assert.Equal(t, resp.Body.String(), `{"errors":[{"message":"could not cleanup body: invalid URL escape \"%H7\""}],"data":null}`)
    44  	})
    45  
    46  	t.Run("validation failure", func(t *testing.T) {
    47  		resp := doGraphqlRequest(h, "POST", "/graphql", `{ title }`)
    48  		assert.Equal(t, http.StatusUnprocessableEntity, resp.Code, resp.Body.String())
    49  		assert.Equal(t, resp.Header().Get("Content-Type"), "application/json")
    50  		assert.Equal(t, `{"errors":[{"message":"Cannot query field \"title\" on type \"Query\".","locations":[{"line":1,"column":3}],"extensions":{"code":"GRAPHQL_VALIDATION_FAILED"}}],"data":null}`, resp.Body.String())
    51  	})
    52  
    53  	t.Run("execution failure", func(t *testing.T) {
    54  		resp := doGraphqlRequest(h, "POST", "/graphql", `mutation { name }`)
    55  		assert.Equal(t, http.StatusOK, resp.Code, resp.Body.String())
    56  		assert.Equal(t, resp.Header().Get("Content-Type"), "application/json")
    57  		assert.Equal(t, `{"errors":[{"message":"mutations are not supported"}],"data":null}`, resp.Body.String())
    58  	})
    59  
    60  	t.Run("validate content type", func(t *testing.T) {
    61  		doReq := func(handler http.Handler, method string, target string, body string, contentType string) *httptest.ResponseRecorder {
    62  			r := httptest.NewRequest(method, target, strings.NewReader(body))
    63  			if contentType != "" {
    64  				r.Header.Set("Content-Type", contentType)
    65  			}
    66  			w := httptest.NewRecorder()
    67  
    68  			handler.ServeHTTP(w, r)
    69  			return w
    70  		}
    71  
    72  		validContentTypes := []string{
    73  			"application/graphql",
    74  			"application/graphql; charset=utf-8",
    75  		}
    76  
    77  		for _, contentType := range validContentTypes {
    78  			t.Run(fmt.Sprintf("allow for content type %s", contentType), func(t *testing.T) {
    79  				resp := doReq(h, "POST", "/graphql", `{ name }`, contentType)
    80  				assert.Equal(t, http.StatusOK, resp.Code, resp.Body.String())
    81  				assert.Equal(t, `{"data":{"name":"test"}}`, resp.Body.String())
    82  			})
    83  		}
    84  
    85  		invalidContentTypes := []string{
    86  			"",
    87  			"text/plain",
    88  		}
    89  
    90  		for _, tc := range invalidContentTypes {
    91  			t.Run(fmt.Sprintf("reject for content type %s", tc), func(t *testing.T) {
    92  				resp := doReq(h, "POST", "/graphql", `{"query":"{ name }"}`, tc)
    93  				assert.Equal(t, http.StatusBadRequest, resp.Code, resp.Body.String())
    94  				assert.Equal(t, fmt.Sprintf(`{"errors":[{"message":"%s"}],"data":null}`, "transport not supported"), resp.Body.String())
    95  			})
    96  		}
    97  	})
    98  }
    99  
   100  func doGraphqlRequest(handler http.Handler, method string, target string, body string) *httptest.ResponseRecorder {
   101  	r := httptest.NewRequest(method, target, strings.NewReader(body))
   102  	r.Header.Set("Content-Type", "application/graphql")
   103  	w := httptest.NewRecorder()
   104  
   105  	handler.ServeHTTP(w, r)
   106  	return w
   107  }