package com.github.marschall.memoryfilesystem;
import java.nio.file.FileSystem;
import java.nio.file.attribute.PosixFilePermission;
import java.util.EnumSet;
import java.util.Set;
import org.junit.rules.TestRule;
import org.junit.runner.Description;
import org.junit.runners.model.Statement;
final class PosixFileSystemRule implements TestRule {
private FileSystem fileSystem;
private final Set<PosixFilePermission> umask;
PosixFileSystemRule(Set<PosixFilePermission> umask) {
this.umask = umask;
}
PosixFileSystemRule() {
this(EnumSet.noneOf(PosixFilePermission.class));
}
FileSystem getFileSystem() {
return this.fileSystem;
}
@Override
public Statement apply(final Statement base, Description description) {
return new Statement() {
@Override
public void evaluate() throws Throwable {
PosixFileSystemRule.this.fileSystem = MemoryFileSystemBuilder.newLinux()
.setUmask(PosixFileSystemRule.this.umask)
.build("PosixFileSystemRule");
try {
base.evaluate();
} finally {
PosixFileSystemRule.this.fileSystem.close();
}
}
};
}
}