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sse_test.go
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sse_test.go
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package openai
import (
"fmt"
"io"
"strings"
"testing"
"testing/iotest"
)
func TestParseEventStream(t *testing.T) {
tests := []struct {
name string
input string
expected string
}{
{
"empty stream",
"",
"",
},
{
"empty message",
"\n\n",
"",
},
{
"empty data, but sent because LF stripping is after empty check",
"data: \n\n",
"# <> []",
},
{
"simple message",
"data: foo\n\n",
"# <> [foo]",
},
{
"multiline message",
"data: foo\ndata: bar\n\n",
"# <> [foo\nbar]",
},
{
"event, multiline message",
"event: test\ndata: foo\ndata: bar\n\n",
"# <test> [foo\nbar]",
},
{
"id, event, multiline message",
"id: 1234\nevent: test\ndata: foo\ndata: bar\n\n",
"#1234 <test> [foo\nbar]",
},
{
"no spaces after fields",
"id:1234\nevent:test\ndata:foo\ndata:bar\n\n",
"#1234 <test> [foo\nbar]",
},
{
"three messages",
"id: 1234\nevent: test\ndata: foo\ndata: bar\n\nid:5\ndata:boz\n\ndata:fubar\nevent:boo\n\n",
"#1234 <test> [foo\nbar] | #5 <> [boz] | # <boo> [fubar]",
},
{
"retry",
"id: 1234\nevent: test\ndata: foo\ndata: bar\n\nid:5\nretry: 500\ndata:boz\n\ndata:fubar\nevent:boo\n\n",
"#1234 <test> [foo\nbar] | retry 500 | #5 <> [boz] | # <boo> [fubar]",
},
{
"unfinished message",
"data: foo\n",
"",
},
{
"unfinished message at the end",
"id: 1234\nevent: test\ndata: foo\ndata: bar\n\nid:5\ndata:boz\n\ndata:fubar\nevent:boo\n\ndata: foo\n",
"#1234 <test> [foo\nbar] | #5 <> [boz] | # <boo> [fubar]",
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
actual := parseEventStreamStr(tt.input)
if actual != tt.expected {
t.Errorf("** ParseStream(%q) == %q, expected %q", tt.input, actual, tt.expected)
}
})
}
}
func parseEventStreamStr(input string) string {
var events []string
parseEventStream(io.NopCloser(iotest.OneByteReader(strings.NewReader(input))), 1024, func(id, event string, data []byte) error {
events = append(events, fmt.Sprintf("#%s <%s> [%s]", id, event, data))
return nil
}, func(ms uint64) {
events = append(events, fmt.Sprintf("retry %d", ms))
})
return strings.Join(events, " | ")
}