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LUCENE-9083: throw assumption if you try to remap /dev to /dev with this test mock

This commit is contained in:
Robert Muir 2020-01-22 21:58:26 -05:00
parent e0820acc45
commit aa504fe295
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1 changed files with 9 additions and 1 deletions
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10
lucene/core/src/test/org/apache/lucene/util/TestIOUtils.java
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@ -48,6 +48,7 @@ import java.util.UUID;
import org.apache.lucene.mockfile.FilterFileSystem;
import org.apache.lucene.mockfile.FilterFileSystemProvider;
import org.apache.lucene.mockfile.FilterPath;
import org.junit.AssumptionViolatedException;
/** Simple test methods for IOUtils */
public class TestIOUtils extends LuceneTestCase {
@ -212,6 +213,9 @@ public class TestIOUtils extends LuceneTestCase {
public MockLinuxFileSystemProvider(FileSystem delegateInstance, final Map<String,FileStore> filesToStore, Path root) {
super("mocklinux://", delegateInstance);
if (mockedPath(root)) {
throw new AssumptionViolatedException("can't mock /sys and /dev inside of /sys or /dev!");
}
final Collection<FileStore> allStores = new HashSet<>(filesToStore.values());
this.fileSystem = new FilterFileSystem(this, delegateInstance) {
@Override
@ -242,8 +246,12 @@ public class TestIOUtils extends LuceneTestCase {
return ret;
}
static boolean mockedPath(Path path) {
return path.toAbsolutePath().startsWith("/sys") || path.toAbsolutePath().startsWith("/dev");
}
Path maybeChroot(Path path) {
if (path.toAbsolutePath().startsWith("/sys") || path.toAbsolutePath().startsWith("/dev")) {
if (mockedPath(path)) {
// map to our chrooted location;
return path.getRoot().resolve(root).resolve(path.toString().substring(1));
} else {