/*
* Copyright 2013 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.truth.Truth.assertThat;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.fail;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSet;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.file.attribute.UserDefinedFileAttributeView;
import java.util.Arrays;
import java.util.Set;
/**
* Tests for {@link UserDefinedAttributeProvider}.
*
* @author Colin Decker
*/
@RunWith(JUnit4.class)
public class UserDefinedAttributeProviderTest
extends AbstractAttributeProviderTest<UserDefinedAttributeProvider> {
@Override
protected UserDefinedAttributeProvider createProvider() {
return new UserDefinedAttributeProvider();
}
@Override
protected Set<? extends AttributeProvider> createInheritedProviders() {
return ImmutableSet.of();
}
@Test
public void testInitialAttributes() {
// no initial attributes
assertThat(ImmutableList.copyOf(file.getAttributeKeys())).isEmpty();
assertThat(provider.attributes(file)).isEmpty();
}
@Test
public void testGettingAndSetting() {
byte[] bytes = {0, 1, 2, 3};
provider.set(file, "user", "one", bytes, false);
provider.set(file, "user", "two", ByteBuffer.wrap(bytes), false);
byte[] one = (byte[]) provider.get(file, "one");
byte[] two = (byte[]) provider.get(file, "two");
assertThat(Arrays.equals(one, bytes)).isTrue();
assertThat(Arrays.equals(two, bytes)).isTrue();
assertSetFails("foo", "hello");
assertThat(provider.attributes(file)).containsExactly("one", "two");
}
@Test
public void testSetOnCreate() {
assertSetFailsOnCreate("anything", new byte[0]);
}
@Test
public void testView() throws IOException {
UserDefinedFileAttributeView view = provider.view(fileLookup(), NO_INHERITED_VIEWS);
assertNotNull(view);
assertThat(view.name()).isEqualTo("user");
assertThat(view.list()).isEmpty();
byte[] b1 = {0, 1, 2};
byte[] b2 = {0, 1, 2, 3, 4};
view.write("b1", ByteBuffer.wrap(b1));
view.write("b2", ByteBuffer.wrap(b2));
assertThat(view.list()).containsAllOf("b1", "b2");
assertThat(file.getAttributeKeys()).containsExactly("user:b1", "user:b2");
assertThat(view.size("b1")).is(3);
assertThat(view.size("b2")).is(5);
ByteBuffer buf1 = ByteBuffer.allocate(view.size("b1"));
ByteBuffer buf2 = ByteBuffer.allocate(view.size("b2"));
view.read("b1", buf1);
view.read("b2", buf2);
assertThat(Arrays.equals(b1, buf1.array())).isTrue();
assertThat(Arrays.equals(b2, buf2.array())).isTrue();
view.delete("b2");
assertThat(view.list()).containsExactly("b1");
assertThat(file.getAttributeKeys()).containsExactly("user:b1");
try {
view.size("b2");
fail();
} catch (IllegalArgumentException expected) {
assertThat(expected.getMessage()).contains("not set");
}
try {
view.read("b2", ByteBuffer.allocate(10));
fail();
} catch (IllegalArgumentException expected) {
assertThat(expected.getMessage()).contains("not set");
}
view.write("b1", ByteBuffer.wrap(b2));
assertThat(view.size("b1")).is(5);
view.delete("b2"); // succeeds
}
}