b9509e823a
When session long-context pricing is triggered in computeTokenBreakdown (e.g. GPT-5.4 / GPT-5.5 above the 272k token threshold), the multiplier was only being applied to InputPricePerToken and OutputPricePerToken. The cache_read price was left at its base value, so CacheReadCost was silently undercharged whenever a long-context session also had cache hits — which is essentially every long Codex / Claude Code session. Concretely for gpt-5.4 with 300k cache_read tokens, the bug under-billed the request by exactly 1x the LongContextInputMultiplier on the cache portion (e.g. 0.075 instead of 0.150 in the regression test). Cache reads are conceptually input-side replays, so they should scale with LongContextInputMultiplier, matching the treatment of InputPricePerToken. Adds two regression tests: - positive: long-context triggered -> cache_read scaled by 2.0x - negative: below threshold -> cache_read stays at base price Fixes #2293 Co-authored-by: Cursor <cursoragent@cursor.com>
870 lines
32 KiB
Go
870 lines
32 KiB
Go
//go:build unit
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package service
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import (
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"math"
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"testing"
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"github.com/Wei-Shaw/sub2api/internal/config"
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"github.com/stretchr/testify/require"
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)
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func newTestBillingService() *BillingService {
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return NewBillingService(&config.Config{}, nil)
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}
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func TestCalculateCost_BasicComputation(t *testing.T) {
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svc := newTestBillingService()
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// 使用 claude-sonnet-4 的回退价格：Input $3/MTok, Output $15/MTok
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tokens := UsageTokens{
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InputTokens: 1000,
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OutputTokens: 500,
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}
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cost, err := svc.CalculateCost("claude-sonnet-4", tokens, 1.0)
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require.NoError(t, err)
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// 1000 * 3e-6 = 0.003, 500 * 15e-6 = 0.0075
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expectedInput := 1000 * 3e-6
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expectedOutput := 500 * 15e-6
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require.InDelta(t, expectedInput, cost.InputCost, 1e-10)
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require.InDelta(t, expectedOutput, cost.OutputCost, 1e-10)
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require.InDelta(t, expectedInput+expectedOutput, cost.TotalCost, 1e-10)
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require.InDelta(t, expectedInput+expectedOutput, cost.ActualCost, 1e-10)
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}
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func TestCalculateCost_WithCacheTokens(t *testing.T) {
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svc := newTestBillingService()
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tokens := UsageTokens{
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InputTokens: 1000,
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OutputTokens: 500,
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CacheCreationTokens: 2000,
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CacheReadTokens: 3000,
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}
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cost, err := svc.CalculateCost("claude-sonnet-4", tokens, 1.0)
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require.NoError(t, err)
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expectedCacheCreation := 2000 * 3.75e-6
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expectedCacheRead := 3000 * 0.3e-6
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require.InDelta(t, expectedCacheCreation, cost.CacheCreationCost, 1e-10)
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require.InDelta(t, expectedCacheRead, cost.CacheReadCost, 1e-10)
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expectedTotal := cost.InputCost + cost.OutputCost + expectedCacheCreation + expectedCacheRead
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require.InDelta(t, expectedTotal, cost.TotalCost, 1e-10)
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}
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func TestCalculateCost_RateMultiplier(t *testing.T) {
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svc := newTestBillingService()
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tokens := UsageTokens{InputTokens: 1000, OutputTokens: 500}
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cost1x, err := svc.CalculateCost("claude-sonnet-4", tokens, 1.0)
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require.NoError(t, err)
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cost2x, err := svc.CalculateCost("claude-sonnet-4", tokens, 2.0)
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require.NoError(t, err)
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// TotalCost 不受倍率影响，ActualCost 翻倍
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require.InDelta(t, cost1x.TotalCost, cost2x.TotalCost, 1e-10)
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require.InDelta(t, cost1x.ActualCost*2, cost2x.ActualCost, 1e-10)
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}
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func TestGetModelPricing_FallbackMatchesByFamily(t *testing.T) {
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svc := newTestBillingService()
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tests := []struct {
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model string
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expectedInput float64
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}{
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{"claude-opus-4.5-20250101", 5e-6},
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{"claude-3-opus-20240229", 15e-6},
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{"claude-sonnet-4-20250514", 3e-6},
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{"claude-3-5-sonnet-20241022", 3e-6},
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{"claude-3-5-haiku-20241022", 1e-6},
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{"claude-3-haiku-20240307", 0.25e-6},
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}
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for _, tt := range tests {
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pricing, err := svc.GetModelPricing(tt.model)
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require.NoError(t, err, "模型 %s", tt.model)
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require.InDelta(t, tt.expectedInput, pricing.InputPricePerToken, 1e-12, "模型 %s 输入价格", tt.model)
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}
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}
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func TestGetModelPricing_CaseInsensitive(t *testing.T) {
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svc := newTestBillingService()
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p1, err := svc.GetModelPricing("Claude-Sonnet-4")
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require.NoError(t, err)
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p2, err := svc.GetModelPricing("claude-sonnet-4")
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require.NoError(t, err)
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require.Equal(t, p1.InputPricePerToken, p2.InputPricePerToken)
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}
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func TestGetModelPricing_UnknownClaudeModelFallsBackToSonnet(t *testing.T) {
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svc := newTestBillingService()
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// 不包含 opus/sonnet/haiku 关键词的 Claude 模型会走默认 Sonnet 价格
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pricing, err := svc.GetModelPricing("claude-unknown-model")
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require.NoError(t, err)
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require.InDelta(t, 3e-6, pricing.InputPricePerToken, 1e-12)
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}
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func TestGetModelPricing_UnknownOpenAIModelReturnsError(t *testing.T) {
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svc := newTestBillingService()
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pricing, err := svc.GetModelPricing("gpt-unknown-model")
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require.Error(t, err)
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require.Nil(t, pricing)
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require.Contains(t, err.Error(), "pricing not found")
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}
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func TestGetModelPricing_OpenAIGPT54Fallback(t *testing.T) {
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svc := newTestBillingService()
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pricing, err := svc.GetModelPricing("gpt-5.4")
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require.NoError(t, err)
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require.NotNil(t, pricing)
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require.InDelta(t, 2.5e-6, pricing.InputPricePerToken, 1e-12)
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require.InDelta(t, 15e-6, pricing.OutputPricePerToken, 1e-12)
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require.InDelta(t, 0.25e-6, pricing.CacheReadPricePerToken, 1e-12)
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require.Equal(t, 272000, pricing.LongContextInputThreshold)
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require.InDelta(t, 2.0, pricing.LongContextInputMultiplier, 1e-12)
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require.InDelta(t, 1.5, pricing.LongContextOutputMultiplier, 1e-12)
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}
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func TestGetModelPricing_OpenAICompactAliasesFallback(t *testing.T) {
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svc := newTestBillingService()
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tests := []struct {
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model string
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inputPrice float64
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outputPrice float64
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cacheRead float64
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longContext int
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}{
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{model: "gpt5.5", inputPrice: 2.5e-6, outputPrice: 15e-6, cacheRead: 0.25e-6, longContext: 272000},
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{model: "openai/gpt5.4", inputPrice: 2.5e-6, outputPrice: 15e-6, cacheRead: 0.25e-6, longContext: 272000},
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{model: "gpt5.4-mini", inputPrice: 7.5e-7, outputPrice: 4.5e-6, cacheRead: 7.5e-8, longContext: 0},
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{model: "gpt5.3codexspark", inputPrice: 1.5e-6, outputPrice: 12e-6, cacheRead: 0.15e-6, longContext: 0},
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}
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for _, tt := range tests {
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t.Run(tt.model, func(t *testing.T) {
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pricing, err := svc.GetModelPricing(tt.model)
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require.NoError(t, err)
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require.NotNil(t, pricing)
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require.InDelta(t, tt.inputPrice, pricing.InputPricePerToken, 1e-12)
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require.InDelta(t, tt.outputPrice, pricing.OutputPricePerToken, 1e-12)
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require.InDelta(t, tt.cacheRead, pricing.CacheReadPricePerToken, 1e-12)
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require.Equal(t, tt.longContext, pricing.LongContextInputThreshold)
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})
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}
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}
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func TestGetModelPricing_OpenAIGPT54MiniFallback(t *testing.T) {
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svc := newTestBillingService()
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pricing, err := svc.GetModelPricing("gpt-5.4-mini")
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require.NoError(t, err)
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require.NotNil(t, pricing)
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require.InDelta(t, 7.5e-7, pricing.InputPricePerToken, 1e-12)
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require.InDelta(t, 4.5e-6, pricing.OutputPricePerToken, 1e-12)
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require.InDelta(t, 7.5e-8, pricing.CacheReadPricePerToken, 1e-12)
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require.Zero(t, pricing.LongContextInputThreshold)
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}
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func TestCalculateCost_OpenAIGPT54LongContextAppliesWholeSessionMultipliers(t *testing.T) {
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svc := newTestBillingService()
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tokens := UsageTokens{
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InputTokens: 300000,
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OutputTokens: 4000,
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}
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cost, err := svc.CalculateCost("gpt-5.4-2026-03-05", tokens, 1.0)
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require.NoError(t, err)
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expectedInput := float64(tokens.InputTokens) * 2.5e-6 * 2.0
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expectedOutput := float64(tokens.OutputTokens) * 15e-6 * 1.5
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require.InDelta(t, expectedInput, cost.InputCost, 1e-10)
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require.InDelta(t, expectedOutput, cost.OutputCost, 1e-10)
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require.InDelta(t, expectedInput+expectedOutput, cost.TotalCost, 1e-10)
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require.InDelta(t, expectedInput+expectedOutput, cost.ActualCost, 1e-10)
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}
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// 回归测试 #2293：长上下文计费触发时，cache_read_tokens 也应应用 LongContextInputMultiplier。
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// 修复前：CacheReadCost = tokens * 0.25e-6 （漏乘倍率，少计费用）。
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// 修复后：CacheReadCost = tokens * 0.25e-6 * LongContextInputMultiplier(=2.0)。
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func TestCalculateCost_OpenAIGPT54LongContextAppliesMultiplierToCacheRead(t *testing.T) {
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svc := newTestBillingService()
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// InputTokens + CacheReadTokens = 1000 + 300000 = 301000 > 272000 阈值
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tokens := UsageTokens{
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InputTokens: 1000,
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CacheReadTokens: 300000,
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OutputTokens: 1000,
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}
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cost, err := svc.CalculateCost("gpt-5.4-2026-03-05", tokens, 1.0)
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require.NoError(t, err)
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expectedInput := float64(tokens.InputTokens) * 2.5e-6 * 2.0
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expectedOutput := float64(tokens.OutputTokens) * 15e-6 * 1.5
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expectedCacheRead := float64(tokens.CacheReadTokens) * 0.25e-6 * 2.0
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require.InDelta(t, expectedInput, cost.InputCost, 1e-10)
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require.InDelta(t, expectedOutput, cost.OutputCost, 1e-10)
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require.InDelta(t, expectedCacheRead, cost.CacheReadCost, 1e-10,
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"cache_read_cost should be scaled by LongContextInputMultiplier when long-context pricing applies (issue #2293)")
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expectedTotal := expectedInput + expectedOutput + expectedCacheRead
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require.InDelta(t, expectedTotal, cost.TotalCost, 1e-10)
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require.InDelta(t, expectedTotal, cost.ActualCost, 1e-10)
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}
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// 阴性测试：未触发长上下文时，cache_read_price 不应被错误地乘以倍率。
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func TestCalculateCost_OpenAIGPT54NoLongContextKeepsCacheReadAtBasePrice(t *testing.T) {
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svc := newTestBillingService()
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// InputTokens + CacheReadTokens = 1000 + 100000 = 101000 < 272000 阈值，不触发长上下文
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tokens := UsageTokens{
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InputTokens: 1000,
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CacheReadTokens: 100000,
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OutputTokens: 1000,
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}
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cost, err := svc.CalculateCost("gpt-5.4-2026-03-05", tokens, 1.0)
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require.NoError(t, err)
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expectedCacheRead := float64(tokens.CacheReadTokens) * 0.25e-6
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require.InDelta(t, expectedCacheRead, cost.CacheReadCost, 1e-10,
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"cache_read_cost should remain at base price when below long-context threshold")
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}
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func TestGetFallbackPricing_FamilyMatching(t *testing.T) {
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svc := newTestBillingService()
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tests := []struct {
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name string
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model string
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expectedInput float64
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expectNilPricing bool
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}{
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{name: "empty model", model: " ", expectNilPricing: true},
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{name: "claude opus 4.6", model: "claude-opus-4.6-20260201", expectedInput: 5e-6},
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{name: "claude opus 4.5 alt separator", model: "claude-opus-4-5-20260101", expectedInput: 5e-6},
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{name: "claude generic model fallback sonnet", model: "claude-foo-bar", expectedInput: 3e-6},
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{name: "gemini explicit fallback", model: "gemini-3-1-pro", expectedInput: 2e-6},
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{name: "gemini unknown no fallback", model: "gemini-2.0-pro", expectNilPricing: true},
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{name: "openai gpt5.4", model: "gpt-5.4", expectedInput: 2.5e-6},
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{name: "openai gpt5.4 mini", model: "gpt-5.4-mini", expectedInput: 7.5e-7},
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{name: "openai gpt5.3 codex", model: "gpt-5.3-codex", expectedInput: 1.5e-6},
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{name: "openai gpt5.3 codex spark", model: "gpt-5.3-codex-spark", expectedInput: 1.5e-6},
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{name: "openai legacy gpt5.1 falls back to gpt5.4", model: "gpt-5.1", expectedInput: 2.5e-6},
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{name: "openai legacy gpt5.1 codex falls back to gpt5.3 codex", model: "gpt-5.1-codex", expectedInput: 1.5e-6},
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{name: "openai legacy codex mini latest falls back to gpt5.3 codex", model: "codex-mini-latest", expectedInput: 1.5e-6},
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{name: "openai unknown no fallback", model: "gpt-unknown-model", expectNilPricing: true},
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{name: "non supported family", model: "qwen-max", expectNilPricing: true},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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pricing := svc.getFallbackPricing(tt.model)
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if tt.expectNilPricing {
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require.Nil(t, pricing)
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return
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}
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require.NotNil(t, pricing)
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require.InDelta(t, tt.expectedInput, pricing.InputPricePerToken, 1e-12)
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})
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}
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}
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func TestCalculateCostWithLongContext_BelowThreshold(t *testing.T) {
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svc := newTestBillingService()
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tokens := UsageTokens{
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InputTokens: 50000,
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OutputTokens: 1000,
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CacheReadTokens: 100000,
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}
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// 总输入 150k < 200k 阈值，应走正常计费
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cost, err := svc.CalculateCostWithLongContext("claude-sonnet-4", tokens, 1.0, 200000, 2.0)
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require.NoError(t, err)
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normalCost, err := svc.CalculateCost("claude-sonnet-4", tokens, 1.0)
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require.NoError(t, err)
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require.InDelta(t, normalCost.ActualCost, cost.ActualCost, 1e-10)
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}
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func TestCalculateCostWithLongContext_AboveThreshold_CacheExceedsThreshold(t *testing.T) {
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svc := newTestBillingService()
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// 缓存 210k + 输入 10k = 220k > 200k 阈值
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// 缓存已超阈值：范围内 200k 缓存，范围外 10k 缓存 + 10k 输入
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tokens := UsageTokens{
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InputTokens: 10000,
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OutputTokens: 1000,
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CacheReadTokens: 210000,
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}
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cost, err := svc.CalculateCostWithLongContext("claude-sonnet-4", tokens, 1.0, 200000, 2.0)
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require.NoError(t, err)
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// 范围内：200k cache + 0 input + 1k output
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inRange, _ := svc.CalculateCost("claude-sonnet-4", UsageTokens{
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InputTokens: 0,
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OutputTokens: 1000,
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CacheReadTokens: 200000,
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}, 1.0)
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// 范围外：10k cache + 10k input，倍率 2.0
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outRange, _ := svc.CalculateCost("claude-sonnet-4", UsageTokens{
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InputTokens: 10000,
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CacheReadTokens: 10000,
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}, 2.0)
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require.InDelta(t, inRange.ActualCost+outRange.ActualCost, cost.ActualCost, 1e-10)
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}
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func TestCalculateCostWithLongContext_AboveThreshold_CacheBelowThreshold(t *testing.T) {
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svc := newTestBillingService()
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// 缓存 100k + 输入 150k = 250k > 200k 阈值
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// 缓存未超阈值：范围内 100k 缓存 + 100k 输入，范围外 50k 输入
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tokens := UsageTokens{
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InputTokens: 150000,
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OutputTokens: 1000,
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CacheReadTokens: 100000,
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}
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cost, err := svc.CalculateCostWithLongContext("claude-sonnet-4", tokens, 1.0, 200000, 2.0)
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require.NoError(t, err)
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require.True(t, cost.ActualCost > 0, "费用应大于 0")
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// 正常费用不含长上下文
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normalCost, _ := svc.CalculateCost("claude-sonnet-4", tokens, 1.0)
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require.True(t, cost.ActualCost > normalCost.ActualCost, "长上下文费用应高于正常费用")
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}
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func TestCalculateCostWithLongContext_DisabledThreshold(t *testing.T) {
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svc := newTestBillingService()
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tokens := UsageTokens{InputTokens: 300000, CacheReadTokens: 0}
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// threshold <= 0 应禁用长上下文计费
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cost1, err := svc.CalculateCostWithLongContext("claude-sonnet-4", tokens, 1.0, 0, 2.0)
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require.NoError(t, err)
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cost2, err := svc.CalculateCost("claude-sonnet-4", tokens, 1.0)
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require.NoError(t, err)
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require.InDelta(t, cost2.ActualCost, cost1.ActualCost, 1e-10)
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}
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func TestCalculateCostWithLongContext_ExtraMultiplierLessEqualOne(t *testing.T) {
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svc := newTestBillingService()
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tokens := UsageTokens{InputTokens: 300000}
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// extraMultiplier <= 1 应禁用长上下文计费
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cost, err := svc.CalculateCostWithLongContext("claude-sonnet-4", tokens, 1.0, 200000, 1.0)
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require.NoError(t, err)
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normalCost, err := svc.CalculateCost("claude-sonnet-4", tokens, 1.0)
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require.NoError(t, err)
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require.InDelta(t, normalCost.ActualCost, cost.ActualCost, 1e-10)
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}
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func TestCalculateImageCost(t *testing.T) {
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svc := newTestBillingService()
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price := 0.134
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cfg := &ImagePriceConfig{Price1K: &price}
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cost := svc.CalculateImageCost("gpt-image-1", "1K", 3, cfg, 1.0)
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require.InDelta(t, 0.134*3, cost.TotalCost, 1e-10)
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require.InDelta(t, 0.134*3, cost.ActualCost, 1e-10)
|
||
}
|
||
|
||
func TestIsModelSupported(t *testing.T) {
|
||
svc := newTestBillingService()
|
||
|
||
require.True(t, svc.IsModelSupported("claude-sonnet-4"))
|
||
require.True(t, svc.IsModelSupported("Claude-Opus-4.5"))
|
||
require.True(t, svc.IsModelSupported("claude-3-haiku"))
|
||
require.False(t, svc.IsModelSupported("gpt-4o"))
|
||
require.False(t, svc.IsModelSupported("gemini-pro"))
|
||
}
|
||
|
||
func TestCalculateCost_ZeroTokens(t *testing.T) {
|
||
svc := newTestBillingService()
|
||
|
||
cost, err := svc.CalculateCost("claude-sonnet-4", UsageTokens{}, 1.0)
|
||
require.NoError(t, err)
|
||
require.Equal(t, 0.0, cost.TotalCost)
|
||
require.Equal(t, 0.0, cost.ActualCost)
|
||
}
|
||
|
||
func TestCalculateCostWithConfig(t *testing.T) {
|
||
cfg := &config.Config{}
|
||
cfg.Default.RateMultiplier = 1.5
|
||
svc := NewBillingService(cfg, nil)
|
||
|
||
tokens := UsageTokens{InputTokens: 1000, OutputTokens: 500}
|
||
cost, err := svc.CalculateCostWithConfig("claude-sonnet-4", tokens)
|
||
require.NoError(t, err)
|
||
|
||
expected, _ := svc.CalculateCost("claude-sonnet-4", tokens, 1.5)
|
||
require.InDelta(t, expected.ActualCost, cost.ActualCost, 1e-10)
|
||
}
|
||
|
||
func TestCalculateCostWithConfig_ZeroMultiplier(t *testing.T) {
|
||
cfg := &config.Config{}
|
||
cfg.Default.RateMultiplier = 0
|
||
svc := NewBillingService(cfg, nil)
|
||
|
||
tokens := UsageTokens{InputTokens: 1000}
|
||
cost, err := svc.CalculateCostWithConfig("claude-sonnet-4", tokens)
|
||
require.NoError(t, err)
|
||
|
||
// 倍率 <=0 时默认 1.0
|
||
expected, _ := svc.CalculateCost("claude-sonnet-4", tokens, 1.0)
|
||
require.InDelta(t, expected.ActualCost, cost.ActualCost, 1e-10)
|
||
}
|
||
|
||
func TestGetEstimatedCost(t *testing.T) {
|
||
svc := newTestBillingService()
|
||
|
||
est, err := svc.GetEstimatedCost("claude-sonnet-4", 1000, 500)
|
||
require.NoError(t, err)
|
||
require.True(t, est > 0)
|
||
}
|
||
|
||
func TestListSupportedModels(t *testing.T) {
|
||
svc := newTestBillingService()
|
||
|
||
models := svc.ListSupportedModels()
|
||
require.NotEmpty(t, models)
|
||
require.GreaterOrEqual(t, len(models), 6)
|
||
}
|
||
|
||
func TestGetPricingServiceStatus_NilService(t *testing.T) {
|
||
svc := newTestBillingService()
|
||
|
||
status := svc.GetPricingServiceStatus()
|
||
require.NotNil(t, status)
|
||
require.Equal(t, "using fallback", status["last_updated"])
|
||
}
|
||
|
||
func TestForceUpdatePricing_NilService(t *testing.T) {
|
||
svc := newTestBillingService()
|
||
|
||
err := svc.ForceUpdatePricing()
|
||
require.Error(t, err)
|
||
require.Contains(t, err.Error(), "not initialized")
|
||
}
|
||
|
||
func TestCalculateCostWithLongContext_PropagatesError(t *testing.T) {
|
||
// 使用空的 fallback prices 让 GetModelPricing 失败
|
||
svc := &BillingService{
|
||
cfg: &config.Config{},
|
||
fallbackPrices: make(map[string]*ModelPricing),
|
||
}
|
||
|
||
tokens := UsageTokens{InputTokens: 300000, CacheReadTokens: 0}
|
||
_, err := svc.CalculateCostWithLongContext("unknown-model", tokens, 1.0, 200000, 2.0)
|
||
require.Error(t, err)
|
||
require.Contains(t, err.Error(), "pricing not found")
|
||
}
|
||
|
||
func TestCalculateCost_SupportsCacheBreakdown(t *testing.T) {
|
||
svc := &BillingService{
|
||
cfg: &config.Config{},
|
||
fallbackPrices: map[string]*ModelPricing{
|
||
"claude-sonnet-4": {
|
||
InputPricePerToken: 3e-6,
|
||
OutputPricePerToken: 15e-6,
|
||
SupportsCacheBreakdown: true,
|
||
CacheCreation5mPrice: 4e-6, // per token
|
||
CacheCreation1hPrice: 5e-6, // per token
|
||
},
|
||
},
|
||
}
|
||
|
||
tokens := UsageTokens{
|
||
InputTokens: 1000,
|
||
OutputTokens: 500,
|
||
CacheCreation5mTokens: 100000,
|
||
CacheCreation1hTokens: 50000,
|
||
}
|
||
cost, err := svc.CalculateCost("claude-sonnet-4", tokens, 1.0)
|
||
require.NoError(t, err)
|
||
|
||
expected5m := float64(tokens.CacheCreation5mTokens) * 4e-6
|
||
expected1h := float64(tokens.CacheCreation1hTokens) * 5e-6
|
||
require.InDelta(t, expected5m+expected1h, cost.CacheCreationCost, 1e-10)
|
||
}
|
||
|
||
func TestCalculateCost_LargeTokenCount(t *testing.T) {
|
||
svc := newTestBillingService()
|
||
|
||
tokens := UsageTokens{
|
||
InputTokens: 1_000_000,
|
||
OutputTokens: 1_000_000,
|
||
}
|
||
cost, err := svc.CalculateCost("claude-sonnet-4", tokens, 1.0)
|
||
require.NoError(t, err)
|
||
|
||
// Input: 1M * 3e-6 = $3, Output: 1M * 15e-6 = $15
|
||
require.InDelta(t, 3.0, cost.InputCost, 1e-6)
|
||
require.InDelta(t, 15.0, cost.OutputCost, 1e-6)
|
||
require.False(t, math.IsNaN(cost.TotalCost))
|
||
require.False(t, math.IsInf(cost.TotalCost, 0))
|
||
}
|
||
|
||
func TestServiceTierCostMultiplier(t *testing.T) {
|
||
require.InDelta(t, 2.0, serviceTierCostMultiplier("priority"), 1e-12)
|
||
require.InDelta(t, 2.0, serviceTierCostMultiplier(" Priority "), 1e-12)
|
||
require.InDelta(t, 0.5, serviceTierCostMultiplier("flex"), 1e-12)
|
||
require.InDelta(t, 1.0, serviceTierCostMultiplier(""), 1e-12)
|
||
require.InDelta(t, 1.0, serviceTierCostMultiplier("default"), 1e-12)
|
||
}
|
||
|
||
func TestCalculateCostWithServiceTier_OpenAIPriorityUsesPriorityPricing(t *testing.T) {
|
||
svc := newTestBillingService()
|
||
tokens := UsageTokens{InputTokens: 100, OutputTokens: 50, CacheReadTokens: 20}
|
||
|
||
baseCost, err := svc.CalculateCost("gpt-5.1-codex", tokens, 1.0)
|
||
require.NoError(t, err)
|
||
|
||
priorityCost, err := svc.CalculateCostWithServiceTier("gpt-5.1-codex", tokens, 1.0, "priority")
|
||
require.NoError(t, err)
|
||
|
||
require.InDelta(t, baseCost.InputCost*2, priorityCost.InputCost, 1e-10)
|
||
require.InDelta(t, baseCost.OutputCost*2, priorityCost.OutputCost, 1e-10)
|
||
require.InDelta(t, baseCost.CacheReadCost*2, priorityCost.CacheReadCost, 1e-10)
|
||
require.InDelta(t, baseCost.TotalCost*2, priorityCost.TotalCost, 1e-10)
|
||
}
|
||
|
||
func TestCalculateCostWithServiceTier_FlexAppliesHalfMultiplier(t *testing.T) {
|
||
svc := newTestBillingService()
|
||
tokens := UsageTokens{InputTokens: 100, OutputTokens: 50, CacheCreationTokens: 40, CacheReadTokens: 20}
|
||
|
||
baseCost, err := svc.CalculateCost("gpt-5.4", tokens, 1.0)
|
||
require.NoError(t, err)
|
||
|
||
flexCost, err := svc.CalculateCostWithServiceTier("gpt-5.4", tokens, 1.0, "flex")
|
||
require.NoError(t, err)
|
||
|
||
require.InDelta(t, baseCost.InputCost*0.5, flexCost.InputCost, 1e-10)
|
||
require.InDelta(t, baseCost.OutputCost*0.5, flexCost.OutputCost, 1e-10)
|
||
require.InDelta(t, baseCost.CacheCreationCost*0.5, flexCost.CacheCreationCost, 1e-10)
|
||
require.InDelta(t, baseCost.CacheReadCost*0.5, flexCost.CacheReadCost, 1e-10)
|
||
require.InDelta(t, baseCost.TotalCost*0.5, flexCost.TotalCost, 1e-10)
|
||
}
|
||
|
||
func TestCalculateCostWithServiceTier_Gpt54MiniPriorityFallsBackToTierMultiplier(t *testing.T) {
|
||
svc := newTestBillingService()
|
||
tokens := UsageTokens{InputTokens: 120, OutputTokens: 30, CacheCreationTokens: 12, CacheReadTokens: 8}
|
||
|
||
baseCost, err := svc.CalculateCost("gpt-5.4-mini", tokens, 1.0)
|
||
require.NoError(t, err)
|
||
|
||
priorityCost, err := svc.CalculateCostWithServiceTier("gpt-5.4-mini", tokens, 1.0, "priority")
|
||
require.NoError(t, err)
|
||
|
||
require.InDelta(t, baseCost.InputCost*2, priorityCost.InputCost, 1e-10)
|
||
require.InDelta(t, baseCost.OutputCost*2, priorityCost.OutputCost, 1e-10)
|
||
require.InDelta(t, baseCost.CacheCreationCost*2, priorityCost.CacheCreationCost, 1e-10)
|
||
require.InDelta(t, baseCost.CacheReadCost*2, priorityCost.CacheReadCost, 1e-10)
|
||
require.InDelta(t, baseCost.TotalCost*2, priorityCost.TotalCost, 1e-10)
|
||
}
|
||
|
||
func TestCalculateCostWithServiceTier_Gpt54NanoFlexAppliesHalfMultiplier(t *testing.T) {
|
||
svc := newTestBillingService()
|
||
tokens := UsageTokens{InputTokens: 100, OutputTokens: 50, CacheCreationTokens: 40, CacheReadTokens: 20}
|
||
|
||
baseCost, err := svc.CalculateCost("gpt-5.4-nano", tokens, 1.0)
|
||
require.NoError(t, err)
|
||
|
||
flexCost, err := svc.CalculateCostWithServiceTier("gpt-5.4-nano", tokens, 1.0, "flex")
|
||
require.NoError(t, err)
|
||
|
||
require.InDelta(t, baseCost.InputCost*0.5, flexCost.InputCost, 1e-10)
|
||
require.InDelta(t, baseCost.OutputCost*0.5, flexCost.OutputCost, 1e-10)
|
||
require.InDelta(t, baseCost.CacheCreationCost*0.5, flexCost.CacheCreationCost, 1e-10)
|
||
require.InDelta(t, baseCost.CacheReadCost*0.5, flexCost.CacheReadCost, 1e-10)
|
||
require.InDelta(t, baseCost.TotalCost*0.5, flexCost.TotalCost, 1e-10)
|
||
}
|
||
|
||
func TestCalculateCostWithServiceTier_PriorityFallsBackToTierMultiplierWithoutExplicitPriorityPrice(t *testing.T) {
|
||
svc := newTestBillingService()
|
||
tokens := UsageTokens{InputTokens: 120, OutputTokens: 30, CacheCreationTokens: 12, CacheReadTokens: 8}
|
||
|
||
baseCost, err := svc.CalculateCost("claude-sonnet-4", tokens, 1.0)
|
||
require.NoError(t, err)
|
||
|
||
priorityCost, err := svc.CalculateCostWithServiceTier("claude-sonnet-4", tokens, 1.0, "priority")
|
||
require.NoError(t, err)
|
||
|
||
require.InDelta(t, baseCost.InputCost*2, priorityCost.InputCost, 1e-10)
|
||
require.InDelta(t, baseCost.OutputCost*2, priorityCost.OutputCost, 1e-10)
|
||
require.InDelta(t, baseCost.CacheCreationCost*2, priorityCost.CacheCreationCost, 1e-10)
|
||
require.InDelta(t, baseCost.CacheReadCost*2, priorityCost.CacheReadCost, 1e-10)
|
||
require.InDelta(t, baseCost.TotalCost*2, priorityCost.TotalCost, 1e-10)
|
||
}
|
||
|
||
func TestBillingServiceGetModelPricing_UsesDynamicPriorityFields(t *testing.T) {
|
||
pricingSvc := &PricingService{
|
||
pricingData: map[string]*LiteLLMModelPricing{
|
||
"gpt-5.4": {
|
||
InputCostPerToken: 2.5e-6,
|
||
InputCostPerTokenPriority: 5e-6,
|
||
OutputCostPerToken: 15e-6,
|
||
OutputCostPerTokenPriority: 30e-6,
|
||
CacheCreationInputTokenCost: 2.5e-6,
|
||
CacheReadInputTokenCost: 0.25e-6,
|
||
CacheReadInputTokenCostPriority: 0.5e-6,
|
||
LongContextInputTokenThreshold: 272000,
|
||
LongContextInputCostMultiplier: 2.0,
|
||
LongContextOutputCostMultiplier: 1.5,
|
||
},
|
||
},
|
||
}
|
||
svc := NewBillingService(&config.Config{}, pricingSvc)
|
||
|
||
pricing, err := svc.GetModelPricing("gpt-5.4")
|
||
require.NoError(t, err)
|
||
require.InDelta(t, 2.5e-6, pricing.InputPricePerToken, 1e-12)
|
||
require.InDelta(t, 5e-6, pricing.InputPricePerTokenPriority, 1e-12)
|
||
require.InDelta(t, 15e-6, pricing.OutputPricePerToken, 1e-12)
|
||
require.InDelta(t, 30e-6, pricing.OutputPricePerTokenPriority, 1e-12)
|
||
require.InDelta(t, 0.25e-6, pricing.CacheReadPricePerToken, 1e-12)
|
||
require.InDelta(t, 0.5e-6, pricing.CacheReadPricePerTokenPriority, 1e-12)
|
||
require.Equal(t, 272000, pricing.LongContextInputThreshold)
|
||
require.InDelta(t, 2.0, pricing.LongContextInputMultiplier, 1e-12)
|
||
require.InDelta(t, 1.5, pricing.LongContextOutputMultiplier, 1e-12)
|
||
}
|
||
|
||
func TestBillingServiceGetModelPricing_OpenAIFallbackGpt52Variants(t *testing.T) {
|
||
svc := newTestBillingService()
|
||
|
||
gpt52, err := svc.GetModelPricing("gpt-5.2")
|
||
require.NoError(t, err)
|
||
require.NotNil(t, gpt52)
|
||
require.InDelta(t, 1.75e-6, gpt52.InputPricePerToken, 1e-12)
|
||
require.InDelta(t, 3.5e-6, gpt52.InputPricePerTokenPriority, 1e-12)
|
||
|
||
gpt52Codex, err := svc.GetModelPricing("gpt-5.2-codex")
|
||
require.NoError(t, err)
|
||
require.NotNil(t, gpt52Codex)
|
||
require.InDelta(t, 1.75e-6, gpt52Codex.InputPricePerToken, 1e-12)
|
||
require.InDelta(t, 3.5e-6, gpt52Codex.InputPricePerTokenPriority, 1e-12)
|
||
require.InDelta(t, 28e-6, gpt52Codex.OutputPricePerTokenPriority, 1e-12)
|
||
}
|
||
|
||
func TestCalculateCostWithServiceTier_PriorityFallsBackToTierMultiplierWhenExplicitPriceMissing(t *testing.T) {
|
||
svc := NewBillingService(&config.Config{}, &PricingService{
|
||
pricingData: map[string]*LiteLLMModelPricing{
|
||
"custom-no-priority": {
|
||
InputCostPerToken: 1e-6,
|
||
OutputCostPerToken: 2e-6,
|
||
CacheCreationInputTokenCost: 0.5e-6,
|
||
CacheReadInputTokenCost: 0.25e-6,
|
||
},
|
||
},
|
||
})
|
||
tokens := UsageTokens{InputTokens: 100, OutputTokens: 50, CacheCreationTokens: 40, CacheReadTokens: 20}
|
||
|
||
baseCost, err := svc.CalculateCost("custom-no-priority", tokens, 1.0)
|
||
require.NoError(t, err)
|
||
|
||
priorityCost, err := svc.CalculateCostWithServiceTier("custom-no-priority", tokens, 1.0, "priority")
|
||
require.NoError(t, err)
|
||
|
||
require.InDelta(t, baseCost.InputCost*2, priorityCost.InputCost, 1e-10)
|
||
require.InDelta(t, baseCost.OutputCost*2, priorityCost.OutputCost, 1e-10)
|
||
require.InDelta(t, baseCost.CacheCreationCost*2, priorityCost.CacheCreationCost, 1e-10)
|
||
require.InDelta(t, baseCost.CacheReadCost*2, priorityCost.CacheReadCost, 1e-10)
|
||
require.InDelta(t, baseCost.TotalCost*2, priorityCost.TotalCost, 1e-10)
|
||
}
|
||
|
||
func TestGetModelPricing_OpenAIGpt52FallbacksExposePriorityPrices(t *testing.T) {
|
||
svc := newTestBillingService()
|
||
|
||
gpt52, err := svc.GetModelPricing("gpt-5.2")
|
||
require.NoError(t, err)
|
||
require.InDelta(t, 1.75e-6, gpt52.InputPricePerToken, 1e-12)
|
||
require.InDelta(t, 3.5e-6, gpt52.InputPricePerTokenPriority, 1e-12)
|
||
require.InDelta(t, 14e-6, gpt52.OutputPricePerToken, 1e-12)
|
||
require.InDelta(t, 28e-6, gpt52.OutputPricePerTokenPriority, 1e-12)
|
||
|
||
gpt52Codex, err := svc.GetModelPricing("gpt-5.2-codex")
|
||
require.NoError(t, err)
|
||
require.InDelta(t, 1.75e-6, gpt52Codex.InputPricePerToken, 1e-12)
|
||
require.InDelta(t, 3.5e-6, gpt52Codex.InputPricePerTokenPriority, 1e-12)
|
||
require.InDelta(t, 14e-6, gpt52Codex.OutputPricePerToken, 1e-12)
|
||
require.InDelta(t, 28e-6, gpt52Codex.OutputPricePerTokenPriority, 1e-12)
|
||
}
|
||
|
||
func TestGetModelPricing_MapsDynamicPriorityFieldsIntoBillingPricing(t *testing.T) {
|
||
svc := NewBillingService(&config.Config{}, &PricingService{
|
||
pricingData: map[string]*LiteLLMModelPricing{
|
||
"dynamic-tier-model": {
|
||
InputCostPerToken: 1e-6,
|
||
InputCostPerTokenPriority: 2e-6,
|
||
OutputCostPerToken: 3e-6,
|
||
OutputCostPerTokenPriority: 6e-6,
|
||
CacheCreationInputTokenCost: 4e-6,
|
||
CacheCreationInputTokenCostAbove1hr: 5e-6,
|
||
CacheReadInputTokenCost: 7e-7,
|
||
CacheReadInputTokenCostPriority: 8e-7,
|
||
LongContextInputTokenThreshold: 999,
|
||
LongContextInputCostMultiplier: 1.5,
|
||
LongContextOutputCostMultiplier: 1.25,
|
||
},
|
||
},
|
||
})
|
||
|
||
pricing, err := svc.GetModelPricing("dynamic-tier-model")
|
||
require.NoError(t, err)
|
||
require.InDelta(t, 1e-6, pricing.InputPricePerToken, 1e-12)
|
||
require.InDelta(t, 2e-6, pricing.InputPricePerTokenPriority, 1e-12)
|
||
require.InDelta(t, 3e-6, pricing.OutputPricePerToken, 1e-12)
|
||
require.InDelta(t, 6e-6, pricing.OutputPricePerTokenPriority, 1e-12)
|
||
require.InDelta(t, 4e-6, pricing.CacheCreation5mPrice, 1e-12)
|
||
require.InDelta(t, 5e-6, pricing.CacheCreation1hPrice, 1e-12)
|
||
require.True(t, pricing.SupportsCacheBreakdown)
|
||
require.InDelta(t, 7e-7, pricing.CacheReadPricePerToken, 1e-12)
|
||
require.InDelta(t, 8e-7, pricing.CacheReadPricePerTokenPriority, 1e-12)
|
||
require.Equal(t, 999, pricing.LongContextInputThreshold)
|
||
require.InDelta(t, 1.5, pricing.LongContextInputMultiplier, 1e-12)
|
||
require.InDelta(t, 1.25, pricing.LongContextOutputMultiplier, 1e-12)
|
||
}
|
||
|
||
// ---------------------------------------------------------------------------
|
||
// GetModelPricingWithChannel
|
||
// ---------------------------------------------------------------------------
|
||
|
||
func TestGetModelPricingWithChannel_NilChannelPricing_ReturnsOriginal(t *testing.T) {
|
||
svc := newTestBillingService()
|
||
|
||
pricing, err := svc.GetModelPricingWithChannel("claude-sonnet-4", nil)
|
||
require.NoError(t, err)
|
||
require.NotNil(t, pricing)
|
||
|
||
// Should be identical to GetModelPricing
|
||
original, err := svc.GetModelPricing("claude-sonnet-4")
|
||
require.NoError(t, err)
|
||
require.InDelta(t, original.InputPricePerToken, pricing.InputPricePerToken, 1e-12)
|
||
require.InDelta(t, original.OutputPricePerToken, pricing.OutputPricePerToken, 1e-12)
|
||
require.InDelta(t, original.CacheCreationPricePerToken, pricing.CacheCreationPricePerToken, 1e-12)
|
||
require.InDelta(t, original.CacheReadPricePerToken, pricing.CacheReadPricePerToken, 1e-12)
|
||
}
|
||
|
||
func TestGetModelPricingWithChannel_OverrideInputPriceOnly(t *testing.T) {
|
||
svc := newTestBillingService()
|
||
|
||
chPricing := &ChannelModelPricing{
|
||
InputPrice: testPtrFloat64(99e-6),
|
||
}
|
||
pricing, err := svc.GetModelPricingWithChannel("claude-sonnet-4", chPricing)
|
||
require.NoError(t, err)
|
||
|
||
// InputPrice overridden (both normal and priority)
|
||
require.InDelta(t, 99e-6, pricing.InputPricePerToken, 1e-12)
|
||
require.InDelta(t, 99e-6, pricing.InputPricePerTokenPriority, 1e-12)
|
||
|
||
// OutputPrice unchanged (claude-sonnet-4 fallback = 15e-6)
|
||
require.InDelta(t, 15e-6, pricing.OutputPricePerToken, 1e-12)
|
||
}
|
||
|
||
func TestGetModelPricingWithChannel_OverrideOutputPriceOnly(t *testing.T) {
|
||
svc := newTestBillingService()
|
||
|
||
chPricing := &ChannelModelPricing{
|
||
OutputPrice: testPtrFloat64(88e-6),
|
||
}
|
||
pricing, err := svc.GetModelPricingWithChannel("claude-sonnet-4", chPricing)
|
||
require.NoError(t, err)
|
||
|
||
// OutputPrice overridden
|
||
require.InDelta(t, 88e-6, pricing.OutputPricePerToken, 1e-12)
|
||
require.InDelta(t, 88e-6, pricing.OutputPricePerTokenPriority, 1e-12)
|
||
|
||
// InputPrice unchanged (claude-sonnet-4 fallback = 3e-6)
|
||
require.InDelta(t, 3e-6, pricing.InputPricePerToken, 1e-12)
|
||
}
|
||
|
||
func TestGetModelPricingWithChannel_OverrideAllFields(t *testing.T) {
|
||
svc := newTestBillingService()
|
||
|
||
chPricing := &ChannelModelPricing{
|
||
InputPrice: testPtrFloat64(10e-6),
|
||
OutputPrice: testPtrFloat64(20e-6),
|
||
CacheWritePrice: testPtrFloat64(5e-6),
|
||
CacheReadPrice: testPtrFloat64(1e-6),
|
||
ImageOutputPrice: testPtrFloat64(50e-6),
|
||
}
|
||
pricing, err := svc.GetModelPricingWithChannel("claude-sonnet-4", chPricing)
|
||
require.NoError(t, err)
|
||
|
||
require.InDelta(t, 10e-6, pricing.InputPricePerToken, 1e-12)
|
||
require.InDelta(t, 10e-6, pricing.InputPricePerTokenPriority, 1e-12)
|
||
require.InDelta(t, 20e-6, pricing.OutputPricePerToken, 1e-12)
|
||
require.InDelta(t, 20e-6, pricing.OutputPricePerTokenPriority, 1e-12)
|
||
require.InDelta(t, 5e-6, pricing.CacheCreationPricePerToken, 1e-12)
|
||
require.InDelta(t, 5e-6, pricing.CacheCreation5mPrice, 1e-12)
|
||
require.InDelta(t, 5e-6, pricing.CacheCreation1hPrice, 1e-12)
|
||
require.InDelta(t, 1e-6, pricing.CacheReadPricePerToken, 1e-12)
|
||
require.InDelta(t, 1e-6, pricing.CacheReadPricePerTokenPriority, 1e-12)
|
||
require.InDelta(t, 50e-6, pricing.ImageOutputPricePerToken, 1e-12)
|
||
}
|
||
|
||
func TestGetModelPricingWithChannel_CacheWritePriceAffects5mAnd1h(t *testing.T) {
|
||
svc := newTestBillingService()
|
||
|
||
chPricing := &ChannelModelPricing{
|
||
CacheWritePrice: testPtrFloat64(7e-6),
|
||
}
|
||
pricing, err := svc.GetModelPricingWithChannel("claude-sonnet-4", chPricing)
|
||
require.NoError(t, err)
|
||
|
||
// CacheWritePrice should set all three: CacheCreationPricePerToken, 5m, and 1h
|
||
require.InDelta(t, 7e-6, pricing.CacheCreationPricePerToken, 1e-12)
|
||
require.InDelta(t, 7e-6, pricing.CacheCreation5mPrice, 1e-12)
|
||
require.InDelta(t, 7e-6, pricing.CacheCreation1hPrice, 1e-12)
|
||
}
|
||
|
||
func TestGetModelPricingWithChannel_CacheReadPriceAffectsPriority(t *testing.T) {
|
||
svc := newTestBillingService()
|
||
|
||
chPricing := &ChannelModelPricing{
|
||
CacheReadPrice: testPtrFloat64(2e-6),
|
||
}
|
||
pricing, err := svc.GetModelPricingWithChannel("claude-sonnet-4", chPricing)
|
||
require.NoError(t, err)
|
||
|
||
// CacheReadPrice should set both normal and priority
|
||
require.InDelta(t, 2e-6, pricing.CacheReadPricePerToken, 1e-12)
|
||
require.InDelta(t, 2e-6, pricing.CacheReadPricePerTokenPriority, 1e-12)
|
||
}
|
||
|
||
func TestGetModelPricingWithChannel_UnknownModelReturnsError(t *testing.T) {
|
||
svc := newTestBillingService()
|
||
|
||
chPricing := &ChannelModelPricing{
|
||
InputPrice: testPtrFloat64(1e-6),
|
||
}
|
||
pricing, err := svc.GetModelPricingWithChannel("totally-unknown-model", chPricing)
|
||
require.Error(t, err)
|
||
require.Nil(t, pricing)
|
||
require.Contains(t, err.Error(), "pricing not found")
|
||
}
|