test cases passed

.gitignore

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+/node_modules

__test__/cache.test.ts

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+import { BSTCache } from "../src/cache"
+// import { BSTCache } from 'keyache';
+
+
+describe('BSTCache', () => {
+    let cache: BSTCache;
+
+    beforeEach(() => {
+        cache = new BSTCache();
+    });
+
+    it('should set and get values correctly', () => {
+        cache.set('key1', 'value1');
+        cache.set('key2', 'value2');
+
+        expect(cache.get('key1')).toBe('value1');
+        expect(cache.get('key2')).toBe('value2');
+    });
+
+    it('should return undefined for non-existent keys', () => {
+        expect(cache.get('nonexistent')).toBeUndefined();
+    });
+
+    it('should delete values correctly', () => {
+        cache.set('key1', 'value1');
+        cache.delete('key1');
+
+        expect(cache.get('key1')).toBeUndefined();
+    });
+
+    it('should clear the cache correctly', () => {
+        cache.set('key1', 'value1');
+        cache.set('key2', 'value2');
+        cache.clear();
+
+        expect(cache.get('key1')).toBeUndefined();
+        expect(cache.get('key2')).toBeUndefined();
+    });
+});

jest.config.ts

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+module.exports = {
+    preset: 'ts-jest',
+    testEnvironment: 'node',
+    moduleNameMapper: {
+        '^keyache$': '<rootDir>/dist/index.js',
+        '^keyache/(.*)$': '<rootDir>/dist/$1',
+    },
+};