httproute-backend-protocol-ws.go

Documentation: sigs.k8s.io/gateway-api/conformance/tests

     1  /*
     2  Copyright 2023 The Kubernetes Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package tests
    18  
    19  import (
    20  	"bytes"
    21  	"fmt"
    22  	"testing"
    23  	"time"
    24  
    25  	"golang.org/x/net/websocket"
    26  	"k8s.io/apimachinery/pkg/types"
    27  
    28  	"sigs.k8s.io/gateway-api/conformance/utils/http"
    29  	"sigs.k8s.io/gateway-api/conformance/utils/kubernetes"
    30  	"sigs.k8s.io/gateway-api/conformance/utils/suite"
    31  )
    32  
    33  func init() {
    34  	ConformanceTests = append(ConformanceTests,
    35  		HTTPRouteBackendProtocolWebSocket,
    36  	)
    37  }
    38  
    39  var HTTPRouteBackendProtocolWebSocket = suite.ConformanceTest{
    40  	ShortName:   "HTTPRouteBackendProtocolWebSocket",
    41  	Description: "A HTTPRoute with a BackendRef that has an appProtocol kubernetes.io/ws should be functional",
    42  	Features: []suite.SupportedFeature{
    43  		suite.SupportGateway,
    44  		suite.SupportHTTPRoute,
    45  		suite.SupportHTTPRouteBackendProtocolWebSocket,
    46  	},
    47  	Manifests: []string{
    48  		"tests/httproute-backend-protocol-ws.yaml",
    49  	},
    50  	Test: func(t *testing.T, suite *suite.ConformanceTestSuite) {
    51  		ns := "gateway-conformance-infra"
    52  		routeNN := types.NamespacedName{Name: "backend-protocol-ws", Namespace: ns}
    53  		gwNN := types.NamespacedName{Name: "same-namespace", Namespace: ns}
    54  		gwAddr := kubernetes.GatewayAndHTTPRoutesMustBeAccepted(t, suite.Client, suite.TimeoutConfig, suite.ControllerName, kubernetes.NewGatewayRef(gwNN), routeNN)
    55  
    56  		threshold := suite.TimeoutConfig.RequiredConsecutiveSuccesses
    57  		maxTimeToConsistency := suite.TimeoutConfig.MaxTimeToConsistency
    58  
    59  		t.Run("websocket connection should reach backend", func(t *testing.T) {
    60  			http.AwaitConvergence(t, threshold, maxTimeToConsistency, func(elapsed time.Duration) bool {
    61  				origin := fmt.Sprintf("ws://gateway/%s", t.Name())
    62  				remote := fmt.Sprintf("ws://%s/ws", gwAddr)
    63  
    64  				ws, err := websocket.Dial(remote, "", origin)
    65  				if err != nil {
    66  					t.Log("failed to dial", err)
    67  					return false
    68  				}
    69  				defer ws.Close()
    70  
    71  				// Send text frame
    72  				var (
    73  					textMessage = "Websocket Support!"
    74  					textReply   string
    75  				)
    76  				if err := websocket.Message.Send(ws, textMessage); err != nil {
    77  					t.Log("failed to send text frame", err)
    78  					return false
    79  				}
    80  				if err := websocket.Message.Receive(ws, &textReply); err != nil {
    81  					t.Log("failed to receive text frame", err)
    82  					return false
    83  				}
    84  				if textMessage != textReply {
    85  					t.Logf("unexpected reply - want: %s got: %s", textMessage, textReply)
    86  					return false
    87  				}
    88  
    89  				// Send byte frame
    90  				var (
    91  					binaryMessage = []byte{1, 2, 3, 4, 5, 6, 7}
    92  					binaryReply   []byte
    93  				)
    94  				if err := websocket.Message.Send(ws, binaryMessage); err != nil {
    95  					t.Log("failed to send binary frame", err)
    96  					return false
    97  				}
    98  				if err := websocket.Message.Receive(ws, &binaryReply); err != nil {
    99  					t.Log("failed to receive binary frame", err)
   100  				}
   101  				if !bytes.Equal(binaryMessage, binaryReply) {
   102  					t.Logf("unexpected reply - want: %#v got: %#v", binaryMessage, binaryReply)
   103  					return false
   104  				}
   105  				return true
   106  			})
   107  		})
   108  	},
   109  }
   110
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