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/*
* Copyright 2015 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.common.jimfs;
import static com.google.common.base.StandardSystemProperty.LINE_SEPARATOR;
import static com.google.common.truth.Truth.assertThat;
import static java.nio.charset.StandardCharsets.UTF_8;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.Range;
import com.google.common.io.Resources;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.nio.file.FileSystem;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.attribute.FileTime;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/**
* Tests that {@link URL} instances can be created and used from jimfs URIs.
*
* @author Colin Decker
*/
@RunWith(JUnit4.class)
public class UrlTest {
private final FileSystem fs = Jimfs.newFileSystem(Configuration.unix());
private Path path = fs.getPath("foo");
@Test
public void creatUrl() throws MalformedURLException {
URL url = path.toUri().toURL();
assertThat(url).isNotNull();
}
@Test
public void readFromUrl() throws IOException {
Files.write(path, ImmutableList.of("Hello World"), UTF_8);
URL url = path.toUri().toURL();
assertThat(Resources.asCharSource(url, UTF_8).read())
.isEqualTo("Hello World" + LINE_SEPARATOR.value());
}
@Test
public void readDirectoryContents() throws IOException {
Files.createDirectory(path);
Files.createFile(path.resolve("a.txt"));
Files.createFile(path.resolve("b.txt"));
Files.createDirectory(path.resolve("c"));
URL url = path.toUri().toURL();
assertThat(Resources.asCharSource(url, UTF_8).read()).isEqualTo("a.txt\nb.txt\nc\n");
}
@Test
public void headers() throws IOException {
byte[] bytes = {1, 2, 3};
Files.write(path, bytes);
FileTime lastModified = Files.getLastModifiedTime(path);
URL url = path.toUri().toURL();
URLConnection conn = url.openConnection();
// read header fields directly
assertThat(conn.getHeaderFields()).containsEntry("content-length", ImmutableList.of("3"));
assertThat(conn.getHeaderFields())
.containsEntry("content-type", ImmutableList.of("application/octet-stream"));
if (lastModified != null) {
assertThat(conn.getHeaderFields()).containsKey("last-modified");
assertThat(conn.getHeaderFields()).hasSize(3);
} else {
assertThat(conn.getHeaderFields()).hasSize(2);
}
// use the specific methods for reading the expected headers
assertThat(conn.getContentLengthLong()).isEqualTo(Files.size(path));
assertThat(conn.getContentType()).isEqualTo("application/octet-stream");
if (lastModified != null) {
// The HTTP date format does not include milliseconds, which means that the last modified time
// returned from the connection may not be exactly the same as that of the file system itself.
// The difference should less than 1000ms though, and should never be greater.
long difference = lastModified.toMillis() - conn.getLastModified();
assertThat(difference).isIn(Range.closedOpen(0L, 1000L));
} else {
assertThat(conn.getLastModified()).isEqualTo(0L);
}
}
@Test
public void contentType() throws IOException {
path = fs.getPath("foo.txt");
Files.write(path, ImmutableList.of("Hello World"), UTF_8);
URL url = path.toUri().toURL();
URLConnection conn = url.openConnection();
// Should be text/plain, but this is entirely dependent on the installed FileTypeDetectors
String detectedContentType = Files.probeContentType(path);
if (detectedContentType == null) {
assertThat(conn.getContentType()).isEqualTo("application/octet-stream");
} else {
assertThat(conn.getContentType()).isEqualTo(detectedContentType);
}
}
}
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