| /* |
| * Copyright (C) 2019, Matthias Sohn <matthias.sohn@sap.com> and others |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Distribution License v. 1.0 which is available at |
| * https://www.eclipse.org/org/documents/edl-v10.php. |
| * |
| * SPDX-License-Identifier: BSD-3-Clause |
| */ |
| package org.eclipse.jgit.util; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertNotNull; |
| import static org.junit.Assert.assertNull; |
| |
| import java.io.IOException; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| public class SimpleLruCacheTest { |
| |
| private Path trash; |
| |
| private SimpleLruCache<String, String> cache; |
| |
| |
| @Before |
| public void setup() throws IOException { |
| trash = Files.createTempDirectory("tmp_"); |
| cache = new SimpleLruCache<>(100, 0.2f); |
| } |
| |
| @Before |
| @After |
| public void tearDown() throws Exception { |
| FileUtils.delete(trash.toFile(), |
| FileUtils.RECURSIVE | FileUtils.SKIP_MISSING); |
| } |
| |
| @Test |
| public void testPutGet() { |
| cache.put("a", "A"); |
| cache.put("z", "Z"); |
| assertEquals("A", cache.get("a")); |
| assertEquals("Z", cache.get("z")); |
| } |
| |
| @Test(expected = IllegalArgumentException.class) |
| public void testPurgeFactorTooLarge() { |
| cache.configure(5, 1.01f); |
| } |
| |
| @Test(expected = IllegalArgumentException.class) |
| public void testPurgeFactorTooLarge2() { |
| cache.configure(5, 100); |
| } |
| |
| @Test(expected = IllegalArgumentException.class) |
| public void testPurgeFactorTooSmall() { |
| cache.configure(5, 0); |
| } |
| |
| @Test(expected = IllegalArgumentException.class) |
| public void testPurgeFactorTooSmall2() { |
| cache.configure(5, -100); |
| } |
| |
| @Test |
| public void testGetMissing() { |
| assertEquals(null, cache.get("a")); |
| } |
| |
| @Test |
| public void testPurge() { |
| for (int i = 0; i < 101; i++) { |
| cache.put("a" + i, "a" + i); |
| } |
| assertEquals(80, cache.size()); |
| assertNull(cache.get("a0")); |
| assertNull(cache.get("a20")); |
| assertNotNull(cache.get("a21")); |
| assertNotNull(cache.get("a99")); |
| } |
| |
| @Test |
| public void testConfigure() { |
| for (int i = 0; i < 100; i++) { |
| cache.put("a" + i, "a" + i); |
| } |
| assertEquals(100, cache.size()); |
| cache.configure(10, 0.3f); |
| assertEquals(7, cache.size()); |
| assertNull(cache.get("a0")); |
| assertNull(cache.get("a92")); |
| assertNotNull(cache.get("a93")); |
| assertNotNull(cache.get("a99")); |
| } |
| } |