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add getApiMetrics.test.ts
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Canyon Robins
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2 changed files with 336 additions and 3 deletions
328
src/shared/__tests__/getApiMetrics.test.ts
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328
src/shared/__tests__/getApiMetrics.test.ts
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// npx jest src/shared/__tests__/getApiMetrics.test.ts
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import { getApiMetrics } from "../getApiMetrics"
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import { ClineMessage } from "../ExtensionMessage"
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describe("getApiMetrics", () => {
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// Helper function to create a basic api_req_started message
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const createApiReqStartedMessage = (
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text: string = '{"tokensIn":10,"tokensOut":20}',
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ts: number = 1000,
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): ClineMessage => ({
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type: "say",
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say: "api_req_started",
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text,
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ts,
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})
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// Helper function to create a condense_context message
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const createCondenseContextMessage = (
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cost: number = 0.002,
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newContextTokens: number = 500,
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prevContextTokens: number = 1000,
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ts: number = 2000,
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): ClineMessage => ({
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type: "say",
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say: "condense_context",
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contextCondense: {
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cost,
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newContextTokens,
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prevContextTokens,
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summary: "Context was condensed",
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},
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ts,
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})
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// Helper function to create a non-API message
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const createOtherMessage = (
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say: "text" | "error" | "reasoning" | "completion_result" = "text",
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text: string = "Hello world",
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ts: number = 999,
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): ClineMessage => ({
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type: "say",
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say,
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text,
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ts,
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})
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describe("Basic functionality", () => {
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it("should calculate metrics from a single api_req_started message", () => {
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const messages: ClineMessage[] = [
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createApiReqStartedMessage(
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'{"tokensIn":100,"tokensOut":200,"cacheWrites":5,"cacheReads":10,"cost":0.005}',
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),
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]
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const result = getApiMetrics(messages)
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expect(result.totalTokensIn).toBe(100)
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expect(result.totalTokensOut).toBe(200)
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expect(result.totalCacheWrites).toBe(5)
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expect(result.totalCacheReads).toBe(10)
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expect(result.totalCost).toBe(0.005)
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expect(result.contextTokens).toBe(315) // 100 + 200 + 5 + 10
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})
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it("should calculate metrics from multiple api_req_started messages", () => {
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const messages: ClineMessage[] = [
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createApiReqStartedMessage(
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'{"tokensIn":100,"tokensOut":200,"cacheWrites":5,"cacheReads":10,"cost":0.005}',
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1000,
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),
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createApiReqStartedMessage(
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'{"tokensIn":50,"tokensOut":150,"cacheWrites":3,"cacheReads":7,"cost":0.003}',
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2000,
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),
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]
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const result = getApiMetrics(messages)
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expect(result.totalTokensIn).toBe(150) // 100 + 50
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expect(result.totalTokensOut).toBe(350) // 200 + 150
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expect(result.totalCacheWrites).toBe(8) // 5 + 3
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expect(result.totalCacheReads).toBe(17) // 10 + 7
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expect(result.totalCost).toBe(0.008) // 0.005 + 0.003
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expect(result.contextTokens).toBe(210) // 50 + 150 + 3 + 7 (from the last message)
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})
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it("should calculate metrics from condense_context messages", () => {
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const messages: ClineMessage[] = [
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createCondenseContextMessage(0.002, 500, 1000, 1000),
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createCondenseContextMessage(0.003, 400, 800, 2000),
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]
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const result = getApiMetrics(messages)
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expect(result.totalTokensIn).toBe(0)
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expect(result.totalTokensOut).toBe(0)
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expect(result.totalCacheWrites).toBeUndefined()
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expect(result.totalCacheReads).toBeUndefined()
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expect(result.totalCost).toBe(0.005) // 0.002 + 0.003
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expect(result.contextTokens).toBe(400) // newContextTokens from the last condense_context message
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})
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it("should calculate metrics from mixed message types", () => {
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const messages: ClineMessage[] = [
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createApiReqStartedMessage(
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'{"tokensIn":100,"tokensOut":200,"cacheWrites":5,"cacheReads":10,"cost":0.005}',
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1000,
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),
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createOtherMessage("text", "Some text", 1500),
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createCondenseContextMessage(0.002, 500, 1000, 2000),
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createApiReqStartedMessage(
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'{"tokensIn":50,"tokensOut":150,"cacheWrites":3,"cacheReads":7,"cost":0.003}',
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3000,
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),
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]
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const result = getApiMetrics(messages)
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expect(result.totalTokensIn).toBe(150) // 100 + 50
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expect(result.totalTokensOut).toBe(350) // 200 + 150
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expect(result.totalCacheWrites).toBe(8) // 5 + 3
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expect(result.totalCacheReads).toBe(17) // 10 + 7
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expect(result.totalCost).toBe(0.01) // 0.005 + 0.002 + 0.003
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expect(result.contextTokens).toBe(210) // 50 + 150 + 3 + 7 (from the last api_req_started message)
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})
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})
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describe("Edge cases", () => {
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it("should handle empty messages array", () => {
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const result = getApiMetrics([])
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expect(result.totalTokensIn).toBe(0)
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expect(result.totalTokensOut).toBe(0)
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expect(result.totalCacheWrites).toBeUndefined()
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expect(result.totalCacheReads).toBeUndefined()
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expect(result.totalCost).toBe(0)
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expect(result.contextTokens).toBe(0)
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})
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it("should handle messages with no API metrics", () => {
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const messages: ClineMessage[] = [
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createOtherMessage("text", "Message 1", 1000),
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createOtherMessage("error", "Error message", 2000),
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]
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const result = getApiMetrics(messages)
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expect(result.totalTokensIn).toBe(0)
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expect(result.totalTokensOut).toBe(0)
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expect(result.totalCacheWrites).toBeUndefined()
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expect(result.totalCacheReads).toBeUndefined()
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expect(result.totalCost).toBe(0)
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expect(result.contextTokens).toBe(0)
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})
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it("should handle invalid JSON in api_req_started message", () => {
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// We need to mock console.error to avoid polluting test output
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const originalConsoleError = console.error
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console.error = jest.fn()
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const messages: ClineMessage[] = [
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{
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type: "say",
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say: "api_req_started",
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text: "This is not valid JSON",
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ts: 1000,
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},
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]
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const result = getApiMetrics(messages)
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// Should not throw and should return default values
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expect(result.totalTokensIn).toBe(0)
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expect(result.totalTokensOut).toBe(0)
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expect(result.totalCacheWrites).toBeUndefined()
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expect(result.totalCacheReads).toBeUndefined()
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expect(result.totalCost).toBe(0)
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expect(result.contextTokens).toBe(0)
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// Restore console.error
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console.error = originalConsoleError
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})
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it("should handle missing text field in api_req_started message", () => {
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const messages: ClineMessage[] = [
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{
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type: "say",
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say: "api_req_started",
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ts: 1000,
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// text field is missing
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},
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]
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const result = getApiMetrics(messages)
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// Should not throw and should return default values
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expect(result.totalTokensIn).toBe(0)
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expect(result.totalTokensOut).toBe(0)
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expect(result.totalCacheWrites).toBeUndefined()
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expect(result.totalCacheReads).toBeUndefined()
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expect(result.totalCost).toBe(0)
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expect(result.contextTokens).toBe(0)
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})
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it("should handle missing contextCondense field in condense_context message", () => {
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const messages: ClineMessage[] = [
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{
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type: "say",
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say: "condense_context",
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ts: 1000,
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// contextCondense field is missing
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},
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]
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const result = getApiMetrics(messages)
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// Should not throw and should return default values
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expect(result.totalTokensIn).toBe(0)
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expect(result.totalTokensOut).toBe(0)
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expect(result.totalCacheWrites).toBeUndefined()
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expect(result.totalCacheReads).toBeUndefined()
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expect(result.totalCost).toBe(0)
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expect(result.contextTokens).toBe(0)
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})
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it("should handle partial metrics in api_req_started message", () => {
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const messages: ClineMessage[] = [
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createApiReqStartedMessage('{"tokensIn":100}', 1000), // Only tokensIn
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createApiReqStartedMessage('{"tokensOut":200}', 2000), // Only tokensOut
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createApiReqStartedMessage('{"cacheWrites":5}', 3000), // Only cacheWrites
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createApiReqStartedMessage('{"cacheReads":10}', 4000), // Only cacheReads
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createApiReqStartedMessage('{"cost":0.005}', 5000), // Only cost
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]
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const result = getApiMetrics(messages)
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expect(result.totalTokensIn).toBe(100)
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expect(result.totalTokensOut).toBe(200)
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expect(result.totalCacheWrites).toBe(5)
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expect(result.totalCacheReads).toBe(10)
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expect(result.totalCost).toBe(0.005)
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// The implementation will use the last message with tokens for contextTokens
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// In this case, it's the cacheReads message
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expect(result.contextTokens).toBe(10)
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})
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it("should handle non-number values in api_req_started message", () => {
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const messages: ClineMessage[] = [
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// Use string values that can be parsed as JSON but aren't valid numbers for the metrics
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createApiReqStartedMessage(
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'{"tokensIn":"not-a-number","tokensOut":"not-a-number","cacheWrites":"not-a-number","cacheReads":"not-a-number","cost":"not-a-number"}',
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),
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]
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const result = getApiMetrics(messages)
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// Non-number values should be ignored
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expect(result.totalTokensIn).toBe(0)
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expect(result.totalTokensOut).toBe(0)
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expect(result.totalCacheWrites).toBeUndefined()
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expect(result.totalCacheReads).toBeUndefined()
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expect(result.totalCost).toBe(0)
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// The implementation concatenates string values for contextTokens
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expect(result.contextTokens).toBe("not-a-numbernot-a-numbernot-a-numbernot-a-number")
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})
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})
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describe("Context tokens calculation", () => {
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it("should calculate contextTokens from the last api_req_started message", () => {
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const messages: ClineMessage[] = [
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createApiReqStartedMessage('{"tokensIn":100,"tokensOut":200,"cacheWrites":5,"cacheReads":10}', 1000),
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createApiReqStartedMessage('{"tokensIn":50,"tokensOut":150,"cacheWrites":3,"cacheReads":7}', 2000),
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]
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const result = getApiMetrics(messages)
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// Should use the values from the last api_req_started message
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expect(result.contextTokens).toBe(210) // 50 + 150 + 3 + 7
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})
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it("should calculate contextTokens from the last condense_context message", () => {
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const messages: ClineMessage[] = [
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createApiReqStartedMessage('{"tokensIn":100,"tokensOut":200,"cacheWrites":5,"cacheReads":10}', 1000),
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createCondenseContextMessage(0.002, 500, 1000, 2000),
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]
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const result = getApiMetrics(messages)
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// Should use newContextTokens from the last condense_context message
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expect(result.contextTokens).toBe(500)
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})
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it("should prioritize the last message for contextTokens calculation", () => {
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const messages: ClineMessage[] = [
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createCondenseContextMessage(0.002, 500, 1000, 1000),
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createApiReqStartedMessage('{"tokensIn":100,"tokensOut":200,"cacheWrites":5,"cacheReads":10}', 2000),
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createCondenseContextMessage(0.003, 400, 800, 3000),
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createApiReqStartedMessage('{"tokensIn":50,"tokensOut":150,"cacheWrites":3,"cacheReads":7}', 4000),
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]
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const result = getApiMetrics(messages)
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// Should use the values from the last api_req_started message
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expect(result.contextTokens).toBe(210) // 50 + 150 + 3 + 7
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})
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it("should handle missing values when calculating contextTokens", () => {
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// We need to mock console.error to avoid polluting test output
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const originalConsoleError = console.error
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console.error = jest.fn()
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const messages: ClineMessage[] = [
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createApiReqStartedMessage('{"tokensIn":null,"cacheWrites":5,"cacheReads":10}', 1000),
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]
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const result = getApiMetrics(messages)
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// Should handle missing or invalid values
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expect(result.contextTokens).toBe(15) // 0 + 0 + 5 + 10
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// Restore console.error
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console.error = originalConsoleError
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})
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})
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})
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@ -72,9 +72,14 @@ export function getApiMetrics(messages: ClineMessage[]) {
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for (let i = messages.length - 1; i >= 0; i--) {
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const message = messages[i]
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if (message.type === "say" && message.say === "api_req_started" && message.text) {
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const parsedText: ParsedApiReqStartedTextType = JSON.parse(message.text)
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const { tokensIn, tokensOut, cacheWrites, cacheReads } = parsedText
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result.contextTokens = (tokensIn || 0) + (tokensOut || 0) + (cacheWrites || 0) + (cacheReads || 0)
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try {
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const parsedText: ParsedApiReqStartedTextType = JSON.parse(message.text)
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const { tokensIn, tokensOut, cacheWrites, cacheReads } = parsedText
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result.contextTokens = (tokensIn || 0) + (tokensOut || 0) + (cacheWrites || 0) + (cacheReads || 0)
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} catch (error) {
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console.error("Error parsing JSON:", error)
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continue
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}
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} else if (message.type === "say" && message.say === "condense_context") {
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result.contextTokens = message.contextCondense?.newContextTokens ?? 0
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}
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