| 1 | package billing |
| 2 | |
| 3 | import ( |
| 4 | "testing" |
| 5 | "time" |
| 6 | ) |
| 7 | |
| 8 | func testInput(currency, provider, model string) QuoteInput { |
| 9 | rates := RateCard{CacheHit: 0.10, Input: 3, Output: 9, Currency: currency} |
| 10 | if currency == "USD" { |
| 11 | rates = RateCard{CacheHit: 0.014, Input: 0.44, Output: 1.32, Currency: currency} |
| 12 | } |
| 13 | return QuoteInput{ |
| 14 | Usage: UsageTokens{PromptTokens: 1000, CompletionTokens: 2000}, |
| 15 | Rates: rates, |
| 16 | DisplayCurrency: currency, |
| 17 | ModelRef: model, |
| 18 | ProviderKind: provider, |
| 19 | ModelID: model, |
| 20 | } |
| 21 | } |
| 22 | |
| 23 | func TestBuildQuoteIdentityAndOfficialTableOnly(t *testing.T) { |
| 24 | in := testInput("USD", "deepseek", "deepseek-v4-flash") |
| 25 | in.DisplayCurrency = "CNY" |
| 26 | q := BuildQuote(in) |
| 27 | if q.Original.Currency != "USD" || q.Original.Amount == "0" { |
| 28 | t.Fatalf("original = %+v", q.Original) |
| 29 | } |
| 30 | v, ok := q.Valuations["CNY"] |
| 31 | if !ok || v.Basis != BasisOfficialTable { |
| 32 | t.Fatalf("CNY valuation = %+v, ok=%v", v, ok) |
| 33 | } |
| 34 | if q.Selected == nil || q.Selected.Currency != "CNY" || !q.Complete || !q.CostComplete || !q.DisplayComplete { |
| 35 | t.Fatalf("quote completeness/selection = %+v", q) |
| 36 | } |
| 37 | } |
| 38 | |
| 39 | func TestBuildQuoteCustomPriceFallsBackWithoutFX(t *testing.T) { |
| 40 | in := testInput("CNY", "deepseek", "deepseek-v4-flash") |
| 41 | in.Rates.Input = 99 // no longer matches the official table |
| 42 | in.DisplayCurrency = "USD" |
| 43 | q := BuildQuote(in) |
| 44 | if len(q.Valuations) != 1 || q.Valuations["CNY"].Basis != BasisIdentity { |
| 45 | t.Fatalf("unexpected valuations: %+v", q.Valuations) |
| 46 | } |
| 47 | if q.Selected == nil || q.Selected.Currency != "CNY" || q.Complete || q.DisplayComplete || !q.CostComplete { |
| 48 | t.Fatalf("fallback quote = %+v", q) |
| 49 | } |
| 50 | if q.DisplayStatus != DisplayStatusFallbackOriginal || q.Valuations["USD"].Basis == BasisFX { |
| 51 | t.Fatalf("fallback status/FX = %+v", q) |
| 52 | } |
| 53 | } |
| 54 | |
| 55 | func TestAggregateMixedCurrenciesProducesBuckets(t *testing.T) { |
| 56 | a := BuildQuote(QuoteInput{Usage: UsageTokens{PromptTokens: 1}, Rates: RateCard{Input: 1, Currency: "CNY"}}) |
| 57 | b := BuildQuote(QuoteInput{Usage: UsageTokens{PromptTokens: 1}, Rates: RateCard{Input: 1, Currency: "USD"}}) |
| 58 | q := AggregateQuotes([]CostQuote{a, b}, "") |
| 59 | if q.DisplayStatus != DisplayStatusBucketed || q.AggregateMode != AggregateModeCurrencyBuckets || q.Selected != nil { |
| 60 | t.Fatalf("mixed aggregate = %+v", q) |
| 61 | } |
| 62 | if len(q.OriginalTotals) != 2 || q.OriginalTotals[0].Currency != "CNY" || q.OriginalTotals[1].Currency != "USD" { |
| 63 | t.Fatalf("original totals = %+v", q.OriginalTotals) |
| 64 | } |
| 65 | if !q.CostComplete || q.Complete || q.DisplayComplete { |
| 66 | t.Fatalf("mixed completeness = %+v", q) |
| 67 | } |
| 68 | } |
| 69 | |
| 70 | func TestAggregateExplicitDisplayFallsBackToSameOriginal(t *testing.T) { |
| 71 | a := BuildQuote(QuoteInput{Usage: UsageTokens{PromptTokens: 1}, Rates: RateCard{Input: 1, Currency: "CNY"}}) |
| 72 | b := BuildQuote(QuoteInput{Usage: UsageTokens{PromptTokens: 1}, Rates: RateCard{Input: 2, Currency: "CNY"}}) |
| 73 | q := AggregateQuotes([]CostQuote{a, b}, "USD") |
| 74 | if q.Selected == nil || q.Selected.Currency != "CNY" || q.DisplayStatus != DisplayStatusFallbackOriginal { |
| 75 | t.Fatalf("fallback aggregate = %+v", q) |
| 76 | } |
| 77 | if !q.CostComplete || q.DisplayComplete || q.Complete { |
| 78 | t.Fatalf("fallback completeness = %+v", q) |
| 79 | } |
| 80 | } |
| 81 | |
| 82 | func TestAggregateRateBands(t *testing.T) { |
| 83 | base := func(band string) CostQuote { |
| 84 | return CostQuote{Original: Money{Amount: "1", Currency: "CNY"}, Valuations: map[string]Valuation{ |
| 85 | "CNY": {Money: Money{Amount: "1", Currency: "CNY"}, Basis: BasisIdentity}, |
| 86 | }, CostComplete: true, DisplayComplete: true, Complete: true, RateBand: band} |
| 87 | } |
| 88 | if got := AggregateQuotes([]CostQuote{base(RateBandPeak), base(RateBandPeak)}, ""); got.RateBand != RateBandPeak { |
| 89 | t.Fatalf("same band = %q", got.RateBand) |
| 90 | } |
| 91 | if got := AggregateQuotes([]CostQuote{base(RateBandPeak), base(RateBandOffPeak)}, ""); got.RateBand != RateBandMixed { |
| 92 | t.Fatalf("mixed band = %q", got.RateBand) |
| 93 | } |
| 94 | if got := AggregateQuotes([]CostQuote{base(RateBandPeak), base("")}, ""); got.RateBand != "" { |
| 95 | t.Fatalf("unknown member band = %q", got.RateBand) |
| 96 | } |
| 97 | } |
| 98 | |
| 99 | func TestLedgerBucketAggregationClearsSingleRatedAt(t *testing.T) { |
| 100 | l := NewLedger() |
| 101 | q := CostQuote{ |
| 102 | Original: Money{Amount: "1", Currency: "CNY"}, Valuations: map[string]Valuation{ |
| 103 | "CNY": {Money: Money{Amount: "1", Currency: "CNY"}, Basis: BasisIdentity}, |
| 104 | }, |
| 105 | CostComplete: true, DisplayComplete: true, Complete: true, |
| 106 | PricingFingerprint: "peak-card", RateBand: RateBandPeak, RatedAt: "2026-08-17T01:00:00Z", |
| 107 | } |
| 108 | l.Add(q, UsageTokens{PromptTokens: 1}, time.Date(2026, 8, 17, 1, 0, 0, 0, time.UTC)) |
| 109 | l.Add(q, UsageTokens{PromptTokens: 1}, time.Date(2026, 8, 17, 2, 0, 0, 0, time.UTC)) |
| 110 | for _, entry := range l.Entries { |
| 111 | if entry.Quote.RateBand != RateBandPeak || entry.Quote.RatedAt != "" { |
| 112 | t.Fatalf("aggregated bucket quote = %+v", entry.Quote) |
| 113 | } |
| 114 | } |
| 115 | } |
| 116 | |
| 117 | func TestNormalizeOldQuote(t *testing.T) { |
| 118 | q := NormalizeQuote(CostQuote{Original: MoneyOf(NewAmountFromFloat(1), "USD"), Complete: true}) |
| 119 | if !q.CostComplete || !q.DisplayComplete || !q.Complete || q.DisplayStatus != DisplayStatusMatched { |
| 120 | t.Fatalf("normalized old quote = %+v", q) |
| 121 | } |
| 122 | } |
| 123 | |
| 124 | func TestBuildQuoteNoPriceIsUnavailable(t *testing.T) { |
| 125 | q := CostQuote{Estimated: true, CostComplete: false, DisplayComplete: false, Complete: false, DisplayStatus: DisplayStatusUnavailable, IncompleteReason: "no_price"} |
| 126 | q = NormalizeQuote(q) |
| 127 | if q.DisplayStatus != DisplayStatusUnavailable || q.Complete || q.CostComplete { |
| 128 | t.Fatalf("unavailable = %+v", q) |
| 129 | } |
| 130 | } |
| 131 | |
| 132 | func TestBuildQuoteMissingUsageIsUnavailable(t *testing.T) { |
| 133 | q := BuildQuote(QuoteInput{Rates: RateCard{Input: 1, Currency: "USD"}, DisplayCurrency: "USD"}) |
| 134 | if q.CostComplete || q.DisplayComplete || q.Complete || q.Selected != nil || q.DisplayStatus != DisplayStatusUnavailable { |
| 135 | t.Fatalf("missing usage = %+v", q) |
| 136 | } |
| 137 | } |
| 138 | |
| 139 | func TestAggregateNoUsageIsUnavailable(t *testing.T) { |
| 140 | q := AggregateQuotes(nil, "USD") |
| 141 | if q.CostComplete || q.DisplayComplete || q.Complete || q.Selected != nil || q.DisplayStatus != DisplayStatusUnavailable { |
| 142 | t.Fatalf("empty aggregate = %+v", q) |
| 143 | } |
| 144 | } |
| 145 | |
| 146 | func TestLedgerMixedOriginalBucketsContinueAccumulating(t *testing.T) { |
| 147 | l := NewLedger() |
| 148 | base := func(currency string, amount string) CostQuote { |
| 149 | return CostQuote{ |
| 150 | Original: Money{Amount: amount, Currency: currency}, |
| 151 | Valuations: map[string]Valuation{currency: {Money: Money{Amount: amount, Currency: currency}, Basis: BasisIdentity}}, |
| 152 | CostComplete: true, DisplayComplete: true, Complete: true, |
| 153 | DisplayStatus: DisplayStatusMatched, ModelRef: "m", PricingFingerprint: "same", |
| 154 | } |
| 155 | } |
| 156 | l.Add(base("CNY", "1"), UsageTokens{PromptTokens: 1}, time.Time{}) |
| 157 | l.Add(base("USD", "2"), UsageTokens{PromptTokens: 1}, time.Time{}) |
| 158 | l.Add(base("CNY", "3"), UsageTokens{PromptTokens: 1}, time.Time{}) |
| 159 | q := l.Total("") |
| 160 | if len(q.OriginalTotals) != 2 || q.OriginalTotals[0].Amount != "4" || q.OriginalTotals[1].Amount != "2" || q.Selected != nil { |
| 161 | t.Fatalf("ledger buckets = %+v", q) |
| 162 | } |
| 163 | } |
| 164 |