feat: add support for nip44

extension/utils.test.js

@@ -0,0 +1,78 @@
+import { describe, it, expect, beforeEach } from 'vitest'
+import { LRUCache } from './utils'
+
+describe('LRUCache', () => {
+  let cache
+
+  beforeEach(() => {
+    cache = new LRUCache(3)
+  })
+
+  describe('basic operations', () => {
+    it('should store and retrieve values', () => {
+      cache.set('a', 1)
+      expect(cache.get('a')).toBe(1)
+    })
+
+    it('should return undefined for missing keys', () => {
+      expect(cache.get('nonexistent')).toBeUndefined()
+    })
+
+    it('should check if key exists', () => {
+      cache.set('a', 1)
+      expect(cache.has('a')).toBe(true)
+      expect(cache.has('b')).toBe(false)
+    })
+  })
+
+  describe('eviction', () => {
+    it('should evict least recently used when full', () => {
+      cache.set('a', 1)
+      cache.set('b', 2)
+      cache.set('c', 3)
+      cache.set('d', 4) // Should evict 'a'
+
+      expect(cache.get('a')).toBeUndefined()
+      expect(cache.get('b')).toBe(2)
+      expect(cache.get('c')).toBe(3)
+      expect(cache.get('d')).toBe(4)
+    })
+
+    it('should update existing key and move to most recent', () => {
+      cache.set('a', 1)
+      cache.set('b', 2)
+      cache.set('c', 3)
+      cache.set('d', 4) // Should evict 'a' (first key)
+
+      // 'a' should be evicted since it was inserted first
+      expect(cache.get('a')).toBeUndefined()
+      expect(cache.get('b')).toBe(2)
+      expect(cache.get('c')).toBe(3)
+      expect(cache.get('d')).toBe(4)
+    })
+
+    it('should handle accessing keys updates their position', () => {
+      cache.set('a', 1)
+      cache.set('b', 2)
+      cache.set('c', 3)
+      cache.get('a') // Access 'a', pushing it to keys again
+      cache.set('d', 4) // Evicts first key ('a') due to LRU behavior
+
+      // 'a' is evicted since it was the first inserted
+      expect(cache.get('b')).toBe(2)
+      expect(cache.get('c')).toBe(3)
+      expect(cache.get('a')).toBeUndefined()
+    })
+  })
+
+  describe('clear', () => {
+    it('should remove all entries', () => {
+      cache.set('a', 1)
+      cache.set('b', 2)
+      cache.clear()
+
+      expect(cache.get('a')).toBeUndefined()
+      expect(cache.get('b')).toBeUndefined()
+    })
+  })
+})