Makelore 2.0 initial clean snapshot

tests/unit/filesystem-retry.test.ts

@@ -0,0 +1,61 @@
+import { describe, expect, it, vi } from 'vitest';
+import { retryTransientFilesystemOperation } from '@electron/opencode/filesystem-retry';
+
+describe('retryTransientFilesystemOperation', () => {
+  it.each(['EIO', 'EPERM', 'EBUSY', 'EACCES'])(
+    'retries transient %s failures within the configured bound',
+    (code) => {
+      const wait = vi.fn();
+      let attempts = 0;
+
+      const result = retryTransientFilesystemOperation(() => {
+        attempts += 1;
+        if (attempts < 3) {
+          throw Object.assign(new Error('temporary filesystem failure'), { code });
+        }
+        return 'installed';
+      }, {
+        retryDelaysMs: [0, 0],
+        wait,
+      });
+
+      expect(result).toBe('installed');
+      expect(attempts).toBe(3);
+      expect(wait).toHaveBeenCalledTimes(2);
+    },
+  );
+
+  it('does not retry a non-transient filesystem failure', () => {
+    const wait = vi.fn();
+    let attempts = 0;
+    const failure = Object.assign(new Error('missing source'), { code: 'ENOENT' });
+
+    expect(() => retryTransientFilesystemOperation(() => {
+      attempts += 1;
+      throw failure;
+    }, {
+      retryDelaysMs: [0, 0],
+      wait,
+    })).toThrow(failure);
+
+    expect(attempts).toBe(1);
+    expect(wait).not.toHaveBeenCalled();
+  });
+
+  it('stops after the configured retry delays are exhausted', () => {
+    const wait = vi.fn();
+    let attempts = 0;
+    const failure = Object.assign(new Error('persistent filesystem failure'), { code: 'EIO' });
+
+    expect(() => retryTransientFilesystemOperation(() => {
+      attempts += 1;
+      throw failure;
+    }, {
+      retryDelaysMs: [0, 0],
+      wait,
+    })).toThrow(failure);
+
+    expect(attempts).toBe(3);
+    expect(wait).toHaveBeenCalledTimes(2);
+  });
+});