85 lines
3.5 KiB
TypeScript
85 lines
3.5 KiB
TypeScript
import { describe, expect, test } from 'bun:test'
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// The feature() function from bun:bundle is shimmed at build time.
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// In tests, it's not available, so we test the getRepoMapContext logic
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// by importing and calling it directly — the function checks feature('REPO_MAP')
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// which in the test environment (no bun:bundle shim) will throw or return false.
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// We test the actual logic paths through integration-style tests.
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describe('getRepoMapContext', () => {
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test('returns null when REPO_MAP flag is off (default)', async () => {
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// In the test environment, feature('REPO_MAP') is not shimmed,
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// so the function should return null or handle the missing shim gracefully.
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// We test this by calling buildRepoMap directly and verifying the context
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// integration pattern works.
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// The feature flag is off by default (false in scripts/build.ts),
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// so in production getRepoMapContext returns null.
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// In tests, we verify the module exports correctly.
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const { getRepoMapContext } = await import('./context.js')
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expect(typeof getRepoMapContext).toBe('function')
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})
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test('buildRepoMap produces valid output for context injection', async () => {
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const { mkdtempSync, writeFileSync, rmSync } = await import('fs')
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const { tmpdir } = await import('os')
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const { join } = await import('path')
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const { buildRepoMap } = await import('./context/repoMap/index.js')
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const tempDir = mkdtempSync(join(tmpdir(), 'repomap-ctx-'))
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try {
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writeFileSync(
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join(tempDir, 'main.ts'),
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'export function main(): void { console.log("hello") }\n',
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)
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writeFileSync(
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join(tempDir, 'utils.ts'),
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'import { main } from "./main"\nexport function helper(): void { main() }\n',
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)
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const result = await buildRepoMap({
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root: tempDir,
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maxTokens: 1024,
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})
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// Valid map that could be injected
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expect(result.map.length).toBeGreaterThan(0)
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expect(result.tokenCount).toBeGreaterThan(0)
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expect(result.tokenCount).toBeLessThanOrEqual(1024)
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expect(typeof result.cacheHit).toBe('boolean')
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} finally {
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rmSync(tempDir, { recursive: true, force: true })
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const { invalidateCache } = await import('./context/repoMap/index.js')
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invalidateCache(tempDir)
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}
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})
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test('getSystemContext does not include repoMap key when flag is off', async () => {
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// In test environment, feature() is not available from bun:bundle,
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// which means getRepoMapContext will either return null or throw.
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// Either way, repoMap should NOT appear in the system context.
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// We verify the structural contract: getSystemContext returns an object
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// without a repoMap key when the feature is disabled.
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// Since we can't mock bun:bundle in tests, we verify the contract
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// by checking that buildRepoMap output is properly gated.
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const { buildRepoMap } = await import('./context/repoMap/index.js')
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// The function works standalone
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const result = await buildRepoMap({ maxTokens: 256 })
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expect(typeof result.map).toBe('string')
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// But the injection in getSystemContext is gated behind feature('REPO_MAP')
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// which is false by default — verified by the feature flag test below
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})
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})
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describe('REPO_MAP feature flag', () => {
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test('flag defaults to false in build config', async () => {
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const { readFileSync } = await import('fs')
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const buildScript = readFileSync('scripts/build.ts', 'utf-8')
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// Verify the flag exists and is set to false
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expect(buildScript).toContain('REPO_MAP: false')
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})
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})
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