go.uber.org/yarpc@v1.72.1/api/transport/stream_test.go (about)

     1  // Copyright (c) 2022 Uber Technologies, Inc.
     2  //
     3  // Permission is hereby granted, free of charge, to any person obtaining a copy
     4  // of this software and associated documentation files (the "Software"), to deal
     5  // in the Software without restriction, including without limitation the rights
     6  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     7  // copies of the Software, and to permit persons to whom the Software is
     8  // furnished to do so, subject to the following conditions:
     9  //
    10  // The above copyright notice and this permission notice shall be included in
    11  // all copies or substantial portions of the Software.
    12  //
    13  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    14  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    15  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    16  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    17  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    18  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    19  // THE SOFTWARE.
    20  
    21  package transport_test
    22  
    23  import (
    24  	"testing"
    25  
    26  	"github.com/golang/mock/gomock"
    27  	"github.com/stretchr/testify/assert"
    28  	"github.com/stretchr/testify/require"
    29  	"go.uber.org/yarpc/api/transport"
    30  	"go.uber.org/yarpc/api/transport/transporttest"
    31  )
    32  
    33  func TestServerStreamHeaders(t *testing.T) {
    34  	items := map[string]string{"header-key": "header-value"}
    35  	headers := transport.HeadersFromMap(items)
    36  
    37  	mockCtrl := gomock.NewController(t)
    38  	defer mockCtrl.Finish()
    39  	mockStream := transporttest.NewMockStream(mockCtrl)
    40  
    41  	t.Run("unimplemented", func(t *testing.T) {
    42  		serverStream, err := transport.NewServerStream(mockStream)
    43  		require.NoError(t, err)
    44  
    45  		err = serverStream.SendHeaders(headers)
    46  		assert.Error(t, err)
    47  	})
    48  
    49  	t.Run("send-headers", func(t *testing.T) {
    50  		fakeWriter := &fakeWriter{
    51  			Stream: mockStream,
    52  		}
    53  		serverStream, err := transport.NewServerStream(fakeWriter)
    54  		require.NoError(t, err)
    55  
    56  		err = serverStream.SendHeaders(headers)
    57  		assert.NoError(t, err)
    58  		assert.Equal(t, items, fakeWriter.headers.Items())
    59  	})
    60  }
    61  
    62  var _ transport.StreamHeadersSender = (*fakeWriter)(nil)
    63  
    64  type fakeWriter struct {
    65  	transport.Stream
    66  
    67  	headers transport.Headers
    68  }
    69  
    70  func (fw *fakeWriter) SendHeaders(headers transport.Headers) error {
    71  	fw.headers = headers
    72  	return nil
    73  }
    74  
    75  func TestClientStreamHeaders(t *testing.T) {
    76  	items := map[string]string{"header-key": "header-value"}
    77  	headers := transport.HeadersFromMap(items)
    78  
    79  	mockCtrl := gomock.NewController(t)
    80  	defer mockCtrl.Finish()
    81  	mockStream := transporttest.NewMockStreamCloser(mockCtrl)
    82  
    83  	t.Run("unimplemented", func(t *testing.T) {
    84  		clientStream, err := transport.NewClientStream(mockStream)
    85  		require.NoError(t, err)
    86  
    87  		_, err = clientStream.Headers()
    88  		assert.Error(t, err)
    89  	})
    90  
    91  	t.Run("send-headers", func(t *testing.T) {
    92  		fakeReader := &fakeReader{
    93  			StreamCloser: mockStream,
    94  			headers:      headers,
    95  		}
    96  		clientStream, err := transport.NewClientStream(fakeReader)
    97  		require.NoError(t, err)
    98  
    99  		headers, err = clientStream.Headers()
   100  		assert.NoError(t, err)
   101  		assert.Equal(t, items, fakeReader.headers.Items())
   102  	})
   103  }
   104  
   105  var _ transport.StreamHeadersReader = (*fakeReader)(nil)
   106  
   107  type fakeReader struct {
   108  	transport.StreamCloser
   109  
   110  	headers transport.Headers
   111  }
   112  
   113  func (fr *fakeReader) Headers() (transport.Headers, error) {
   114  	return fr.headers, nil
   115  }