String[] keys = entrySet.stream().map(Map.Entry::getKey).toArray(String[]::new);

        assertTrue("Should contain all keys", Arrays.asList(keys).contains("lang"));
        assertTrue("Should contain all keys", Arrays.asList(keys).contains("a_key"));
        assertTrue("Should contain all keys", Arrays.asList(keys).contains("b_key"));
        assertTrue("Should contain all keys", Arrays.asList(keys).contains("c_key"));

            Smb2LeaseKey key3 = limitedManager.requestLease("/share/file3.txt", Smb2LeaseState.SMB2_LEASE_READ_CACHING);

            // key3 should definitely exist (just created)
            assertNotNull(limitedManager.getLease(key3));

            // key1 should have been evicted (oldest)
            assertNull(limitedManager.getLease(key1));

            // key2 should still exist (not the oldest)

	lru := lru.NewLRU[string, int](2, nil, time.Hour)
	lru.Add("key1", 1)
	lru.Add("key2", 2)
	lru.Add("key3", 3)

	if _, ok := lru.Get("key1"); ok {
		t.Errorf("Expected key1 to be removed, but it still exists")
	}
}

func TestLRU_Add_UnlimitedSize_NoEviction(t *testing.T) {
	lru := lru.NewLRU[string, int](0, nil, time.Hour)
	lru.Add("key1", 1)
	lru.Add("key2", 2)
	lru.Add("key3", 3)

	if _, ok := lru.Get("key1"); !ok {

    public void test_putAndGet() {
        dataStoreParams.put("key1", "value1");
        assertEquals("value1", dataStoreParams.get("key1"));

        dataStoreParams.put("key2", 123);
        assertEquals(123, dataStoreParams.get("key2"));

        dataStoreParams.put("key3", null);
        assertNull(dataStoreParams.get("key3"));
    }

    // Test get for non-existent key
    public void test_getNonExistentKey() {

        sourceMap.put("key1", "value1");
        sourceMap.put("key2", 123);
        sourceMap.put("key3", true);
        event.setSourceMap(sourceMap);

        Map<String, Object> result = event.toSource();
        assertNotNull(result);
        assertEquals(3, result.size());
        assertEquals("value1", result.get("key1"));
        assertEquals(123, result.get("key2"));

        facetQueryView.addQuery("key1", "query1");
        assertEquals(1, facetQueryView.getQueryMap().size());
        assertEquals("query1", facetQueryView.getQueryMap().get("key1"));

        facetQueryView.addQuery("key2", "query2");
        assertEquals(2, facetQueryView.getQueryMap().size());
        assertEquals("query2", facetQueryView.getQueryMap().get("key2"));

        // Test overwriting existing key

    public void testGenerateRandomKey() {
        byte[] key1 = keyManager.generateRandomKey(32);
        byte[] key2 = keyManager.generateRandomKey(32);

        assertNotNull(key1, "Should generate key 1");
        assertNotNull(key2, "Should generate key 2");
        assertEquals(32, key1.length, "Key 1 should have correct length");
        assertEquals(32, key2.length, "Key 2 should have correct length");

      while (same != 0xffffffff || diff != 0xffffffff) {
        int key1 = rand.nextInt();
        // flip input bit for key2
        int key2 = key1 ^ (1 << i);
        // get hashes
        int hash1 = function.hashInt(key1).asInt();
        int hash2 = function.hashInt(key2).asInt();
        // test whether the hash values have same output bits
        same |= ~(hash1 ^ hash2);

        paramMap = ParameterUtil.parse(value);
        assertEquals(3, paramMap.size());
        assertEquals("value1", paramMap.get("key1"));
        assertEquals("value2", paramMap.get("key2"));
        assertEquals("value3", paramMap.get("key3"));

        // Test with special characters in keys and values

        DirectoryLeaseContext context = new DirectoryLeaseContext(key1, 0, DirectoryCacheScope.IMMEDIATE_CHILDREN);

        context.setLeaseKey(key2);
        assertEquals(key2, context.getLeaseKey());

        context.setLeaseState(DirectoryLeaseState.DIRECTORY_FULL);
        assertEquals(DirectoryLeaseState.DIRECTORY_FULL, context.getLeaseState());

        context.setCacheScope(DirectoryCacheScope.RECURSIVE_TREE);