wehub-resource-sync
31 lines
1.0 KiB
TypeScript
31 lines
1.0 KiB
TypeScript
import { describe, it } from "node:test";
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import assert from "node:assert/strict";
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import { analyzePrefix, generatePromptCacheKey } from "../../src/lib/promptCache";
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describe("prompt cache prefix analyzer", () => {
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it("captures stable system prefixes and derives a cache key", () => {
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const messages = [
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{ role: "system", content: "You are helpful." },
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{ role: "user", content: "Hello" },
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];
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const analysis = analyzePrefix(messages);
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assert.equal(analysis.prefixEndIdx, 0);
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assert.equal(analysis.prefixType, "system_only");
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assert.equal(analysis.confidence, 0.9);
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assert.ok(analysis.prefixTokens > 0);
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assert.match(generatePromptCacheKey(messages), /^omni-[a-f0-9]{32}$/);
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});
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it("keeps the legacy empty-content key when there is no prefix", () => {
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const messages = [{ role: "user", content: "Hello" }];
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const analysis = analyzePrefix(messages);
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assert.equal(analysis.prefixEndIdx, -1);
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assert.equal(generatePromptCacheKey(messages), "omni-e3b0c44298fc1c149afbf4c8996fb924");
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});
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});
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