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# frozen_string_literal: true
RSpec.describe Dispatch::Adapter::Claude::PricingTable do
describe ".known_ids" do
it "returns an Array of Strings" do
expect(described_class.known_ids).to be_an(Array)
expect(described_class.known_ids).to all(be_a(String))
end
it "includes the three required models" do
ids = described_class.known_ids
expect(ids).to include("claude-opus-4-7-20251018")
expect(ids).to include("claude-sonnet-4-5-20250929")
expect(ids).to include("claude-haiku-4-5-20251001")
end
end
describe ".lookup" do
context "with a known model id" do
subject(:pricing) { described_class.lookup("claude-opus-4-7-20251018") }
it "returns a ModelPricing" do
expect(pricing).to be_a(Dispatch::Adapter::ModelPricing)
end
it "has non-zero input_per_mtok" do
expect(pricing.input_per_mtok).to be > 0
end
it "has non-zero output_per_mtok" do
expect(pricing.output_per_mtok).to be > 0
end
it "has non-zero cache_read_per_mtok" do
expect(pricing.cache_read_per_mtok).to be > 0
end
it "has non-zero cache_write_per_mtok" do
expect(pricing.cache_write_per_mtok).to be > 0
end
end
context "with claude-sonnet-4-5-20250929" do
subject(:pricing) { described_class.lookup("claude-sonnet-4-5-20250929") }
it "returns a ModelPricing with correct rates" do
expect(pricing).to be_a(Dispatch::Adapter::ModelPricing)
expect(pricing.input_per_mtok).to eq(3.0)
expect(pricing.output_per_mtok).to eq(15.0)
expect(pricing.cache_read_per_mtok).to eq(0.3)
expect(pricing.cache_write_per_mtok).to eq(3.75)
end
end
context "with claude-haiku-4-5-20251001" do
subject(:pricing) { described_class.lookup("claude-haiku-4-5-20251001") }
it "returns a ModelPricing with non-zero rates" do
expect(pricing).to be_a(Dispatch::Adapter::ModelPricing)
expect(pricing.input_per_mtok).to be > 0
expect(pricing.output_per_mtok).to be > 0
end
end
context "with an unknown model id" do
it "returns nil" do
expect(described_class.lookup("does-not-exist")).to be_nil
end
it "returns nil for empty string" do
expect(described_class.lookup("")).to be_nil
end
end
end
describe ".context_window" do
it "returns an Integer for a known model" do
expect(described_class.context_window("claude-opus-4-7-20251018")).to be_an(Integer)
end
it "returns a positive value" do
expect(described_class.context_window("claude-opus-4-7-20251018")).to be > 0
end
it "returns nil for an unknown model" do
expect(described_class.context_window("unknown-model")).to be_nil
end
end
describe ".max_output_tokens" do
it "returns an Integer for a known model" do
expect(described_class.max_output_tokens("claude-sonnet-4-5-20250929")).to be_an(Integer)
end
it "returns a positive value" do
expect(described_class.max_output_tokens("claude-sonnet-4-5-20250929")).to be > 0
end
it "returns nil for an unknown model" do
expect(described_class.max_output_tokens("unknown-model")).to be_nil
end
end
describe "Pricing.calculate round-trip" do
it "produces a valid UsageCost when fed a ModelInfo built from the table" do
model_id = "claude-sonnet-4-5-20250929"
pricing = described_class.lookup(model_id)
model_info = Dispatch::Adapter::ModelInfo.new(
id: model_id,
name: "Claude Sonnet 4.5",
max_context_tokens: described_class.context_window(model_id),
supports_vision: true,
supports_tool_use: true,
supports_streaming: true,
pricing: pricing
)
usage = Dispatch::Adapter::Usage.new(
input_tokens: 1_000_000,
output_tokens: 1_000_000,
cache_read_tokens: 1_000_000,
cache_creation_tokens: 1_000_000
)
cost = Dispatch::Adapter::Pricing.calculate(usage, model_info)
# input: 1M * $3.0/M = $3.0
# output: 1M * $15.0/M = $15.0
# cache_read: 1M * $0.3/M = $0.3
# cache_write: 1M * $3.75/M = $3.75
# total: $22.05
expect(cost).to be_a(Dispatch::Adapter::UsageCost)
expect(cost.input).to eq(3.0)
expect(cost.output).to eq(15.0)
expect(cost.cache_read).to eq(0.3)
expect(cost.cache_write).to eq(3.75)
expect(cost.total).to eq(22.05)
end
end
end
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