35 lines
1.1 KiB
TypeScript
35 lines
1.1 KiB
TypeScript
import { assertEquals } from '@std/assert'
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import { join } from '@std/path'
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import { readCache, writeCache, type CacheState } from '../src/core/cache.ts'
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Deno.test('readCache: file fehlt -> undefined', async () => {
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const dir = await Deno.makeTempDir()
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const path = join(dir, 'cache.json')
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const cache = await readCache(path)
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assertEquals(cache, undefined)
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})
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Deno.test('writeCache + readCache: round-trip', async () => {
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const dir = await Deno.makeTempDir()
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const path = join(dir, 'cache.json')
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const state: CacheState = { lastKnownGoodCount: 27, deletedCoords: ['30023:P:dead'] }
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await writeCache(path, state)
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const out = await readCache(path)
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assertEquals(out, state)
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})
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Deno.test('readCache wirft bei korruptem cache-file', async () => {
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const dir = await Deno.makeTempDir()
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const path = join(dir, 'cache.json')
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await Deno.writeTextFile(path, '{"unsinn": 42}')
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let threw = false
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try {
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await readCache(path)
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} catch (err) {
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threw = true
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if (!(err instanceof Error)) throw err
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if (!err.message.includes('Cache-File')) throw err
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}
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if (!threw) throw new Error('readCache haette werfen sollen')
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})
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