Files
ttstd-infinite-canvas/backend/internal/service/finance_token_test.go
MasterChiefCN 3cbbe5d2e9 fix(billing): 文本模型 - 修复流式 Token 用量结算
为 Token 计费的流式 Chat Completions 请求开启 usage 终态块,并解析 Chat Completions 与 Responses SSE 用量。
2026-08-16 13:12:41 +08:00

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package service
import (
"encoding/json"
"testing"
"infinite-canvas/backend/internal/model"
)
func TestSupportsTokenBillingForVolcengineArkVideo(t *testing.T) {
if !supportsTokenBilling("text", model.ChannelInterfaceChatCompletion) {
t.Fatal("text protocol should support Token billing")
}
if !supportsTokenBilling("video", model.ChannelInterfaceVolcengineArkVideo) {
t.Fatal("Volcengine Ark video should support Token billing")
}
if supportsTokenBilling("video", model.ChannelInterfaceNewAPIVideo) {
t.Fatal("video protocols without a final usage contract must not support Token billing")
}
}
func TestEstimateArkVideoTokensUsesPixelFrameEstimate(t *testing.T) {
estimate := estimateArkVideoTokens(map[string]any{
"config": map[string]any{
"model": "doubao-seedance-1-5-pro", "videoSeconds": "5", "vquality": "720", "size": "16:9",
},
})
// 1280*720*(5*24+1)/1024 = 108900,预授权再保留 10% 余量。
if estimate.InputTokens != 0 || estimate.OutputTokens != 119790 {
t.Fatalf("estimateArkVideoTokens() = %#v", estimate)
}
}
func TestEstimateArkVideoTokensIncludesUnknownReferenceVideo(t *testing.T) {
estimate := estimateArkVideoTokens(map[string]any{
"config": map[string]any{
"model": "doubao-seedance-2-0", "videoSeconds": "5", "vquality": "720p", "size": "16:9",
},
"referenceVideos": []any{map[string]any{"id": "video-1"}},
})
if estimate.OutputTokens != 477180 {
t.Fatalf("estimateArkVideoTokens() = %#v", estimate)
}
}
func TestEstimateArkVideoTokensCapsReferenceDuration(t *testing.T) {
estimate := estimateArkVideoTokens(map[string]any{
"config": map[string]any{
"model": "doubao-seedance-2-0", "videoSeconds": "5", "vquality": "720p", "size": "16:9",
},
"referenceVideos": []any{map[string]any{"id": "video-1", "durationMs": int64(60_000)}},
})
if estimate.OutputTokens != 477180 {
t.Fatalf("estimateArkVideoTokens() = %#v", estimate)
}
}
func TestTokenEstimateAmountAllowsVideoOutputOnly(t *testing.T) {
amount, err := tokenEstimateAmount(&model.ChannelModel{OutputTokenPriceMicrocredits: 16_000_000}, tokenBillingEstimate{OutputTokens: 119790}, 10_000)
if err != nil {
t.Fatalf("tokenEstimateAmount() error = %v", err)
}
if amount != 1_916_640 {
t.Fatalf("tokenEstimateAmount() = %d", amount)
}
}
func TestEnrichAPICallLogReadsArkVideoUsage(t *testing.T) {
log := &model.ApiCallLog{Capability: "video", Path: "/api/v3/contents/generations/tasks/cgt-test"}
(&Service{}).EnrichAPICallLog(log, []byte(`{"id":"cgt-test","status":"succeeded","usage":{"completion_tokens":108900,"total_tokens":108900}}`))
if !log.UsageAvailable || log.InputTokens != 0 || log.OutputTokens != 108900 {
t.Fatalf("EnrichAPICallLog() = %#v", log)
}
fallback := &model.ApiCallLog{Capability: "video", Path: "/api/v3/contents/generations/tasks/cgt-test"}
(&Service{}).EnrichAPICallLog(fallback, []byte(`{"usage":{"total_tokens":35800}}`))
if !fallback.UsageAvailable || fallback.OutputTokens != 35800 {
t.Fatalf("EnrichAPICallLog() total_tokens fallback = %#v", fallback)
}
missing := &model.ApiCallLog{Capability: "video", Path: "/api/v3/contents/generations/tasks/cgt-test"}
(&Service{}).EnrichAPICallLog(missing, []byte(`{"usage":{}}`))
if missing.UsageAvailable {
t.Fatalf("EnrichAPICallLog() accepted empty Ark usage: %#v", missing)
}
}
func TestEnrichAPICallLogReadsChatCompletionStreamUsage(t *testing.T) {
log := &model.ApiCallLog{Capability: "text", Path: "/v1/chat/completions"}
stream := []byte("data: {\"id\":\"chatcmpl-test\",\"choices\":[{\"delta\":{\"content\":\"ok\"}}]}\n\n" +
"data: {\"id\":\"chatcmpl-test\",\"choices\":[],\"usage\":{\"prompt_tokens\":23,\"completion_tokens\":7,\"prompt_tokens_details\":{\"cached_tokens\":5}}}\n\n" +
"data: [DONE]\n\n")
(&Service{}).EnrichAPICallLog(log, stream)
if !log.UsageAvailable || log.InputTokens != 23 || log.OutputTokens != 7 || log.CachedTokens != 5 {
t.Fatalf("EnrichAPICallLog() = %#v", log)
}
}
func TestEnrichAPICallLogReadsResponsesStreamUsage(t *testing.T) {
log := &model.ApiCallLog{Capability: "text", Path: "/v1/responses"}
stream := []byte("event: response.output_text.delta\n" +
"data: {\"type\":\"response.output_text.delta\",\"delta\":\"ok\"}\n\n" +
"event: response.completed\n" +
"data: {\"type\":\"response.completed\",\"response\":{\"id\":\"resp-test\",\"status\":\"completed\",\"usage\":{\"input_tokens\":31,\"output_tokens\":11,\"input_tokens_details\":{\"cached_tokens\":9}}}}\n\n")
(&Service{}).EnrichAPICallLog(log, stream)
if !log.UsageAvailable || log.InputTokens != 31 || log.OutputTokens != 11 || log.CachedTokens != 9 || log.ProviderRequestID != "resp-test" {
t.Fatalf("EnrichAPICallLog() = %#v", log)
}
}
func TestEnrichAPICallLogRejectsEmptyTextUsage(t *testing.T) {
log := &model.ApiCallLog{Capability: "text", Path: "/v1/chat/completions"}
(&Service{}).EnrichAPICallLog(log, []byte(`{"usage":{}}`))
if log.UsageAvailable {
t.Fatalf("EnrichAPICallLog() accepted empty text usage: %#v", log)
}
}
func TestEnsureChatCompletionStreamUsageRequest(t *testing.T) {
data, err := EnsureChatCompletionStreamUsageRequest([]byte(`{"model":"gpt-test","stream":true,"stream_options":{"custom":true}}`))
if err != nil {
t.Fatalf("EnsureChatCompletionStreamUsageRequest() error = %v", err)
}
var payload map[string]any
if err := json.Unmarshal(data, &payload); err != nil {
t.Fatalf("json.Unmarshal() error = %v", err)
}
options, _ := payload["stream_options"].(map[string]any)
if options["include_usage"] != true || options["custom"] != true {
t.Fatalf("stream_options = %#v", options)
}
}