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9853396 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 | package httpclient
import (
"bytes"
"context"
"io"
"maps"
"testing"
"github.com/stretchr/testify/require"
)
// mockStreamDecoder implements StreamDecoder for testing.
type mockStreamDecoder struct {
rc io.ReadCloser
events []*StreamEvent
index int
err error
closed bool
}
func newMockStreamDecoder(ctx context.Context, rc io.ReadCloser, events []*StreamEvent) *mockStreamDecoder {
return &mockStreamDecoder{
rc: rc,
events: events,
index: -1,
}
}
func (m *mockStreamDecoder) Next() bool {
if m.err != nil {
return false
}
m.index++
return m.index < len(m.events)
}
func (m *mockStreamDecoder) Current() *StreamEvent {
if m.index < 0 || m.index >= len(m.events) {
return nil
}
return m.events[m.index]
}
func (m *mockStreamDecoder) Err() error {
return m.err
}
func (m *mockStreamDecoder) Close() error {
m.closed = true
return m.rc.Close()
}
// mockReadCloser for testing.
type mockReadCloser struct {
*bytes.Reader
closed bool
}
func (m *mockReadCloser) Close() error {
m.closed = true
return nil
}
func newMockReadCloser(data []byte) *mockReadCloser {
return &mockReadCloser{
Reader: bytes.NewReader(data),
closed: false,
}
}
func TestRegisterDecoder(t *testing.T) {
// Save original state
originalDecoders := make(map[string]StreamDecoderFactory)
maps.Copy(originalDecoders, globalRegistry.decoders)
// Clean up after test
defer func() {
globalRegistry.mu.Lock()
globalRegistry.decoders = originalDecoders
globalRegistry.mu.Unlock()
}()
// Test registering a new decoder
testContentType := "application/test"
testFactory := func(ctx context.Context, rc io.ReadCloser) StreamDecoder {
return newMockStreamDecoder(ctx, rc, []*StreamEvent{})
}
RegisterDecoder(testContentType, testFactory)
// Verify decoder was registered
factory, exists := GetDecoder(testContentType)
require.True(t, exists)
require.NotNil(t, factory)
// Test that the factory works
ctx := context.Background()
rc := newMockReadCloser([]byte("test"))
decoder := factory(ctx, rc)
require.NotNil(t, decoder)
require.Implements(t, (*StreamDecoder)(nil), decoder)
}
func TestGetDecoder(t *testing.T) {
// Test getting existing decoder (text/event-stream should be registered by default)
factory, exists := GetDecoder("text/event-stream")
require.True(t, exists)
require.NotNil(t, factory)
// Test getting non-existent decoder
factory, exists = GetDecoder("application/non-existent")
require.False(t, exists)
require.Nil(t, factory)
}
func TestDefaultSSEDecoder(t *testing.T) {
// Create a simple SSE stream
sseData := "data: {\"type\": \"test\", \"message\": \"hello\"}\n\n"
rc := newMockReadCloser([]byte(sseData))
// Create decoder
ctx := context.Background()
decoder := NewDefaultSSEDecoder(ctx, rc)
require.NotNil(t, decoder)
require.Implements(t, (*StreamDecoder)(nil), decoder)
// Test Next() and Current()
hasNext := decoder.Next()
require.True(t, hasNext)
require.NoError(t, decoder.Err())
event := decoder.Current()
require.NotNil(t, event)
require.Equal(t, "", event.Type) // Default SSE type
require.Contains(t, string(event.Data), "hello")
// Test Close()
err := decoder.Close()
require.NoError(t, err)
require.True(t, rc.closed)
}
func TestDefaultSSEDecoder_EmptyStream(t *testing.T) {
ctx := context.Background()
rc := newMockReadCloser([]byte(""))
decoder := NewDefaultSSEDecoder(ctx, rc)
// Should return false for empty stream
hasNext := decoder.Next()
require.False(t, hasNext)
// Current should return nil
event := decoder.Current()
require.Nil(t, event)
// Close should work
err := decoder.Close()
require.NoError(t, err)
}
func TestDefaultSSEDecoder_NextAfterClose(t *testing.T) {
// Create a simple SSE stream
sseData := "data: {\"type\": \"test\", \"message\": \"hello\"}\n\n"
rc := newMockReadCloser([]byte(sseData))
ctx := context.Background()
decoder := NewDefaultSSEDecoder(ctx, rc)
err := decoder.Close()
require.NoError(t, err)
require.True(t, rc.closed)
hasNext := decoder.Next()
require.False(t, hasNext)
require.NoError(t, decoder.Err())
}
func TestStreamDecoderInterface(t *testing.T) {
ctx := context.Background()
// Test that our mock decoder implements the interface correctly
events := []*StreamEvent{
{Type: "test1", Data: []byte("data1")},
{Type: "test2", Data: []byte("data2")},
}
rc := newMockReadCloser([]byte("test"))
decoder := newMockStreamDecoder(ctx, rc, events)
// Test Next() and Current() for multiple events
require.True(t, decoder.Next())
event1 := decoder.Current()
require.Equal(t, "test1", event1.Type)
require.Equal(t, []byte("data1"), event1.Data)
require.True(t, decoder.Next())
event2 := decoder.Current()
require.Equal(t, "test2", event2.Type)
require.Equal(t, []byte("data2"), event2.Data)
// No more events
require.False(t, decoder.Next())
require.Nil(t, decoder.Current())
// Test error handling
require.NoError(t, decoder.Err())
// Test close
err := decoder.Close()
require.NoError(t, err)
require.True(t, decoder.closed)
require.True(t, rc.closed)
}
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