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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.hosted.node.admin.task.util.file;
import com.yahoo.vespa.test.file.TestFileSystem;
import com.yahoo.vespa.hosted.node.admin.component.TaskContext;
import org.junit.jupiter.api.Test;
import java.nio.file.FileSystem;
import java.nio.file.Path;
import java.time.Instant;
import static org.junit.jupiter.api.Assertions.*;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.ArgumentMatchers.eq;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
public class FileWriterTest {
private final FileSystem fileSystem = TestFileSystem.create();
private final TaskContext context = mock(TaskContext.class);
@Test
void testWrite() {
final String content = "content";
final String permissions = "rwxr-xr-x";
final int owner = 123;
final int group = 456;
Path path = fileSystem.getPath("/opt/vespa/tmp/file.txt");
FileWriter writer = new FileWriter(path, () -> content)
.withPermissions(permissions)
.withOwnerId(owner)
.withGroupId(group)
.onlyIfFileDoesNotAlreadyExist();
assertTrue(writer.converge(context));
verify(context, times(1)).recordSystemModification(any(), eq("Creating file " + path));
UnixPath unixPath = new UnixPath(path);
assertEquals(content, unixPath.readUtf8File());
assertEquals(permissions, unixPath.getPermissions());
assertEquals(owner, unixPath.getOwnerId());
assertEquals(group, unixPath.getGroupId());
Instant fileTime = unixPath.getLastModifiedTime();
// Second time is a no-op.
assertFalse(writer.converge(context));
assertEquals(fileTime, unixPath.getLastModifiedTime());
}
@Test
void testAtomicWrite() {
FileWriter writer = new FileWriter(fileSystem.getPath("/foo/bar"))
.atomicWrite(true);
assertTrue(writer.converge(context, "content"));
verify(context).recordSystemModification(any(), eq("Creating file /foo/bar"));
assertEquals("content", new UnixPath(writer.path()).readUtf8File());
}
}
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