github.com/cloudwego/kitex@v0.9.0/pkg/remote/trans/nphttp2/client_handler_test.go (about)

     1  /*
     2   * Copyright 2022 CloudWeGo 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 nphttp2
    18  
    19  import (
    20  	"context"
    21  	"net"
    22  	"testing"
    23  	"time"
    24  
    25  	"github.com/cloudwego/kitex/internal/test"
    26  	"github.com/cloudwego/kitex/pkg/kerrors"
    27  	"github.com/cloudwego/kitex/pkg/remote"
    28  	"github.com/cloudwego/kitex/pkg/remote/trans/nphttp2/metadata"
    29  	"github.com/cloudwego/kitex/pkg/rpcinfo"
    30  	"github.com/cloudwego/kitex/pkg/serviceinfo"
    31  	"github.com/cloudwego/kitex/transport"
    32  )
    33  
    34  func TestClientHandler(t *testing.T) {
    35  	// init
    36  	opt := newMockClientOption()
    37  	ctx := newMockCtxWithRPCInfo()
    38  	msg := newMockNewMessage()
    39  	msg.ProtocolInfoFunc = func() remote.ProtocolInfo {
    40  		return remote.NewProtocolInfo(transport.PurePayload, serviceinfo.Protobuf)
    41  	}
    42  	msg.RPCInfoFunc = func() rpcinfo.RPCInfo {
    43  		return newMockRPCInfo()
    44  	}
    45  	conn, err := opt.ConnPool.Get(ctx, "tcp", mockAddr0, remote.ConnOption{Dialer: opt.Dialer, ConnectTimeout: time.Second})
    46  	test.Assert(t, err == nil, err)
    47  
    48  	// test NewTransHandler()
    49  	cliTransHandler, err := NewCliTransHandlerFactory().NewTransHandler(opt)
    50  	test.Assert(t, err == nil, err)
    51  
    52  	// test Read(): comment now since Read will block until header has been received, which is not suitable for ut.
    53  	// newMockStreamRecvHelloRequest(conn.(*clientConn).s)
    54  	// ctx, err = cliTransHandler.Read(ctx, conn, msg)
    55  	// test.Assert(t, err == nil, err)
    56  
    57  	// test write()
    58  	ctx, err = cliTransHandler.Write(ctx, conn, msg)
    59  	test.Assert(t, ctx != nil, ctx)
    60  	test.Assert(t, err == nil, err)
    61  }
    62  
    63  type mockCodec struct {
    64  	remote.Codec
    65  	encode func(ctx context.Context, msg remote.Message, out remote.ByteBuffer) error
    66  	decode func(ctx context.Context, msg remote.Message, in remote.ByteBuffer) error
    67  }
    68  
    69  func (c *mockCodec) Encode(ctx context.Context, msg remote.Message, out remote.ByteBuffer) error {
    70  	return c.encode(ctx, msg, out)
    71  }
    72  
    73  func (c *mockCodec) Decode(ctx context.Context, msg remote.Message, in remote.ByteBuffer) error {
    74  	return c.decode(ctx, msg, in)
    75  }
    76  
    77  var (
    78  	_ hasTrailer         = (*mockConnForRead)(nil)
    79  	_ hasHeader          = (*mockConnForRead)(nil)
    80  	_ hasGetRecvCompress = (*mockConnForRead)(nil)
    81  	_ GRPCConn           = (*mockConnForRead)(nil)
    82  )
    83  
    84  type mockConnForRead struct {
    85  	net.Conn
    86  }
    87  
    88  func (m *mockConnForRead) WriteFrame(hdr, data []byte) (n int, err error) {
    89  	return 0, nil
    90  }
    91  
    92  func (m *mockConnForRead) ReadFrame() (hdr, data []byte, err error) {
    93  	return nil, nil, nil
    94  }
    95  
    96  func (m *mockConnForRead) GetRecvCompress() string {
    97  	return ""
    98  }
    99  
   100  func (m *mockConnForRead) Header() (metadata.MD, error) {
   101  	return nil, nil
   102  }
   103  
   104  func (m *mockConnForRead) Trailer() metadata.MD {
   105  	return nil
   106  }
   107  
   108  func Test_cliTransHandler_Read(t *testing.T) {
   109  	t.Run("no error", func(t *testing.T) {
   110  		h := &cliTransHandler{
   111  			codec: &mockCodec{
   112  				decode: func(ctx context.Context, msg remote.Message, out remote.ByteBuffer) error {
   113  					return nil
   114  				},
   115  			},
   116  		}
   117  		msg := newMockNewMessage()
   118  		ivk := rpcinfo.NewInvocation("service", "method")
   119  		ri := rpcinfo.NewRPCInfo(nil, nil, ivk, nil, nil)
   120  		msg.RPCInfoFunc = func() rpcinfo.RPCInfo {
   121  			return ri
   122  		}
   123  		_, err := h.Read(context.Background(), &mockConnForRead{}, msg)
   124  		test.Assert(t, err == nil, err)
   125  		test.Assert(t, ivk.BizStatusErr() == nil)
   126  	})
   127  
   128  	t.Run("biz error", func(t *testing.T) {
   129  		h := &cliTransHandler{
   130  			codec: &mockCodec{
   131  				decode: func(ctx context.Context, msg remote.Message, out remote.ByteBuffer) error {
   132  					return kerrors.NewBizStatusError(100, "biz error")
   133  				},
   134  			},
   135  		}
   136  		msg := newMockNewMessage()
   137  		ivk := rpcinfo.NewInvocation("service", "method")
   138  		ri := rpcinfo.NewRPCInfo(nil, nil, ivk, nil, nil)
   139  		msg.RPCInfoFunc = func() rpcinfo.RPCInfo {
   140  			return ri
   141  		}
   142  		_, err := h.Read(context.Background(), &mockConnForRead{}, msg)
   143  		test.Assert(t, err == nil, err)
   144  		test.Assert(t, ivk.BizStatusErr().BizStatusCode() == 100)
   145  	})
   146  }