Update load-cluster.js

tests/commands/load-cluster.test.js

@@ -0,0 +1,34 @@
+const fs = require('fs-extra')
+const path = require('path')
+const { execSync } = require('child_process')
+
+beforeEach(() => {
+  fs.emptyDirSync('tests/__data__/output')
+  fs.emptyDirSync('tests/__data__/temp')
+  fs.copyFileSync('tests/__data__/input/database/streams.db', 'tests/__data__/temp/streams.db')
+
+  const stdout = execSync(
+    'DB_DIR=tests/__data__/temp LOGS_DIR=tests/__data__/output/logs/load-cluster node scripts/commands/load-cluster.js --cluster-id=1 --timeout=1',
+    { encoding: 'utf8' }
+  )
+})
+
+it('return results', () => {
+  let output = content('tests/__data__/output/logs/load-cluster/cluster_1.log')
+  let expected = content('tests/__data__/expected/logs/load-cluster/cluster_1.log')
+
+  expect(output).toEqual(expected)
+})
+
+function content(filepath) {
+  const data = fs.readFileSync(path.resolve(filepath), {
+    encoding: 'utf8'
+  })
+
+  return data
+    .split('\n')
+    .filter(l => l)
+    .map(l => {
+      return JSON.parse(l)
+    })
+}