Initial commit

test/logger.test.js

@@ -0,0 +1,81 @@
+import assert from 'node:assert/strict'
+import test from 'node:test'
+import { createLogger } from '../src/logger.js'
+
+function capture() {
+  const lines = []
+  return {
+    lines,
+    stream: {
+      write(line) {
+        lines.push(line)
+      },
+    },
+  }
+}
+
+test('writes readable text logs and hides debug lines by default', () => {
+  const sink = capture()
+  const logger = createLogger({
+    level: 'info',
+    format: 'text',
+    stream: sink.stream,
+    bindings: { app: 'test' },
+  })
+
+  logger.debug('hidden detail', { value: 1 })
+  logger.info('server started', { port: 8080, name: 'a b' })
+  logger.warn('careful', { attempt: 2 })
+
+  assert.equal(sink.lines.length, 2)
+  assert.match(sink.lines[0], /^\d{4}-\d{2}-\d{2}T/)
+  assert.match(sink.lines[0], /INFO {2}server started app=test port=8080 name="a b"/)
+  assert.match(sink.lines[1], /WARN {2}careful app=test attempt=2/)
+})
+
+test('redacts credentials but keeps configuration booleans', () => {
+  const sink = capture()
+  const logger = createLogger({ level: 'info', stream: sink.stream })
+
+  logger.info('config', {
+    apiKey: 'secret-value',
+    WIKI_API_KEY: 'secret-value',
+    apiKeyConfigured: true,
+    password: 'hunter2',
+    normal: 'visible',
+  })
+
+  const line = sink.lines.join('')
+  assert.doesNotMatch(line, /secret-value|hunter2/)
+  assert.match(line, /apiKey=\[redacted\]/)
+  assert.match(line, /WIKI_API_KEY=\[redacted\]/)
+  assert.match(line, /apiKeyConfigured=true/)
+  assert.match(line, /normal=visible/)
+})
+
+test('emits one JSON object per line with error details', () => {
+  const sink = capture()
+  const logger = createLogger({ level: 'debug', format: 'json', stream: sink.stream })
+  const error = Object.assign(new Error('request failed'), { code: 'WIKI_ERROR', status: 502 })
+
+  logger.child({ jobId: 'job-1' }).error('export failed', { error, apiKey: 'nope' })
+
+  assert.equal(sink.lines.length, 1)
+  const record = JSON.parse(sink.lines[0])
+  assert.equal(record.level, 'error')
+  assert.equal(record.message, 'export failed')
+  assert.equal(record.jobId, 'job-1')
+  assert.equal(record.apiKey, '[redacted]')
+  assert.equal(record.error.message, 'request failed')
+  assert.equal(record.error.code, 'WIKI_ERROR')
+  assert.match(record.error.stack, /request failed/)
+})
+
+test('silent level disables all output', () => {
+  const sink = capture()
+  const logger = createLogger({ level: 'silent', stream: sink.stream })
+
+  logger.error('nothing here')
+
+  assert.equal(sink.lines.length, 0)
+})