初始化提交：go比特版本精简

tests/workspace_refund_spacing.test.js

@@ -0,0 +1,43 @@
+'use strict';
+
+const assert = require('assert');
+const {
+  MIN_REFUND_SPACING_SECONDS,
+  MAX_REFUND_SPACING_SECONDS,
+  randomRefundSpacingSeconds,
+  waitForRandomRefundSpacing,
+} = require('../src/services/workspace_refund_spacing');
+
+(async () => {
+  assert.strictEqual(randomRefundSpacingSeconds(() => 0), MIN_REFUND_SPACING_SECONDS);
+  assert.strictEqual(randomRefundSpacingSeconds(() => 0.999999), MAX_REFUND_SPACING_SECONDS);
+
+  const waits = [];
+  let logMessage = '';
+  const waited = await waitForRandomRefundSpacing({
+    random: () => 0,
+    delay: async ms => waits.push(ms),
+    onLog: message => { logMessage = message; },
+  });
+  assert.deepStrictEqual(waited, { completed: true, seconds: 15 });
+  assert.deepStrictEqual(waits, [15000]);
+  assert.match(logMessage, /随机间隔 15 秒/);
+
+  let stop = false;
+  const stopAwareWaits = [];
+  const stopped = await waitForRandomRefundSpacing({
+    random: () => 0,
+    shouldStop: () => stop,
+    delay: async ms => {
+      stopAwareWaits.push(ms);
+      stop = true;
+    },
+  });
+  assert.strictEqual(stopped.completed, false);
+  assert.deepStrictEqual(stopAwareWaits, [1000]);
+
+  console.log('workspace_refund_spacing.test.js: PASS');
+})().catch(error => {
+  console.error(error);
+  process.exitCode = 1;
+});