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/*
* 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"));
}
}
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