| /******************************************************************************* |
| * Copyright (c) 2005, 2015 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.core.tests.filesystem; |
| |
| import java.io.*; |
| import junit.framework.Test; |
| import junit.framework.TestSuite; |
| import org.eclipse.core.filesystem.EFS; |
| import org.eclipse.core.filesystem.IFileStore; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.Path; |
| import org.eclipse.core.tests.internal.filesystem.ram.MemoryFileStore; |
| import org.eclipse.core.tests.internal.filesystem.ram.MemoryTree; |
| |
| /** |
| * Tests the file caching provided by FileStore.toLocalFile. |
| */ |
| public class FileCacheTest extends FileSystemTest { |
| |
| public static Test suite() { |
| return new TestSuite(FileCacheTest.class); |
| } |
| |
| public FileCacheTest(String name) { |
| super(name); |
| } |
| |
| /** |
| * Overrides generic method from Assert to perform proper array equality test. |
| */ |
| public void assertEquals(String message, byte[] expected, byte[] actual) { |
| if (expected.length != actual.length) { |
| fail(message + " arrays of different length"); |
| } |
| assertEquals(message + " different length", expected.length, actual.length); |
| for (int i = 0; i < actual.length; i++) { |
| if (expected[i] != actual[i]) { |
| fail(message + " arrays differ at position " + i + "; expected: " + expected[i] + " but was: " + actual[i]); |
| } |
| } |
| } |
| |
| /** |
| * Overrides generic method from Assert to perform proper array equality test. |
| */ |
| public void assertNotSame(String message, byte[] expected, byte[] actual) { |
| if (expected.length != actual.length) { |
| return; |
| } |
| for (int i = 0; i < actual.length; i++) { |
| if (expected[i] != actual[i]) { |
| return; |
| } |
| } |
| fail(message + " arrays should be different, but they are not: " + expected); |
| } |
| |
| /** |
| * Returns the byte[] contents of the given file. |
| */ |
| private byte[] getBytes(File cachedFile) { |
| FileInputStream in = null; |
| ByteArrayOutputStream out = null; |
| try { |
| in = new FileInputStream(cachedFile); |
| out = new ByteArrayOutputStream(); |
| transferData(in, out); |
| in.close(); |
| out.close(); |
| return out.toByteArray(); |
| } catch (IOException e) { |
| fail("Exception in FileCacheTest.getBytes", e); |
| } |
| return new byte[0]; |
| } |
| |
| @Override |
| protected void setUp() throws Exception { |
| super.setUp(); |
| MemoryTree.TREE.deleteAll(); |
| } |
| |
| @Override |
| protected void tearDown() throws Exception { |
| super.tearDown(); |
| MemoryTree.TREE.deleteAll(); |
| } |
| |
| public void testCacheFile() { |
| try { |
| IFileStore store = new MemoryFileStore(new Path("testCacheFile")); |
| OutputStream out = store.openOutputStream(EFS.NONE, getMonitor()); |
| byte[] contents = "test".getBytes(); |
| out.write(contents); |
| out.close(); |
| File cachedFile = store.toLocalFile(EFS.CACHE, getMonitor()); |
| assertTrue("1.0", cachedFile.exists()); |
| assertTrue("1.1", !cachedFile.isDirectory()); |
| assertEquals("1.2", contents, getBytes(cachedFile)); |
| |
| //write out new file contents |
| byte[] newContents = "newContents".getBytes(); |
| out = store.openOutputStream(EFS.NONE, getMonitor()); |
| out.write(newContents); |
| out.close(); |
| |
| //old cache will be out of date |
| assertNotSame("2.0", newContents, getBytes(cachedFile)); |
| |
| //fetching the cache again should return up to date file |
| cachedFile = store.toLocalFile(EFS.CACHE, getMonitor()); |
| assertTrue("3.0", cachedFile.exists()); |
| assertTrue("3.1", !cachedFile.isDirectory()); |
| assertEquals("3.2", newContents, getBytes(cachedFile)); |
| |
| } catch (IOException e) { |
| fail("1.99", e); |
| } catch (CoreException e) { |
| fail("1.99", e); |
| } |
| } |
| |
| public void testCacheFolder() { |
| try { |
| IFileStore store = new MemoryFileStore(new Path("testCacheFolder")); |
| store.mkdir(EFS.NONE, getMonitor()); |
| File cachedFile = store.toLocalFile(EFS.CACHE, getMonitor()); |
| assertTrue("1.0", cachedFile.exists()); |
| assertTrue("1.1", cachedFile.isDirectory()); |
| } catch (CoreException e) { |
| fail("1.99", e); |
| } |
| } |
| |
| /** |
| * Tests invoking the toLocalFile method without the CACHE option flag. |
| */ |
| public void testNoCacheFlag() { |
| try { |
| IFileStore store = new MemoryFileStore(new Path("testNoCacheFlag")); |
| store.mkdir(EFS.NONE, getMonitor()); |
| File cachedFile = store.toLocalFile(EFS.NONE, getMonitor()); |
| assertNull("1.0", cachedFile); |
| } catch (CoreException e) { |
| fail("4.99", e); |
| } |
| } |
| |
| /** |
| * Tests caching a non-existing file |
| */ |
| public void testNonExisting() { |
| try { |
| IFileStore store = new MemoryFileStore(new Path("testNonExisting")); |
| File cachedFile = store.toLocalFile(EFS.CACHE, getMonitor()); |
| assertTrue("1.0", !cachedFile.exists()); |
| } catch (CoreException e) { |
| fail("4.99", e); |
| } |
| } |
| } |