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/* @test
* @bug 8073061
* @requires (os.family == "linux") | (os.family == "mac")
* @summary Test Files.copy and Files.move with numerous parameters
* @run junit CopyMoveVariations
*/
import java.io.IOException;
import java.io.UncheckedIOException;
import java.nio.file.AccessDeniedException;
import java.nio.file.CopyOption;
import java.nio.file.FileAlreadyExistsException;
import java.nio.file.Files;
import java.nio.file.LinkOption;
import java.nio.file.Path;
import java.nio.file.attribute.PosixFilePermission;
import java.nio.file.attribute.PosixFilePermissions;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.stream.Stream;
import static java.nio.file.LinkOption.*;
import static java.nio.file.StandardCopyOption.*;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.condition.EnabledIf;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.Arguments;
import org.junit.jupiter.params.provider.MethodSource;
import org.junit.jupiter.params.provider.ValueSource;
import static org.junit.jupiter.api.Assertions.*;
public class CopyMoveVariations {
enum OpType {
COPY,
MOVE
}
enum PathType {
FILE,
DIR,
LINK
}
private static final boolean SUPPORTS_POSIX_PERMISSIONS;
static {
Path tmp = null;
try {
tmp = Files.createTempFile("this", "that");
SUPPORTS_POSIX_PERMISSIONS =
Files.getFileStore(tmp).supportsFileAttributeView("posix");
} catch (IOException cause) {
throw new UncheckedIOException(cause);
} finally {
if (tmp != null) {
try {
Files.delete(tmp);
} catch (IOException ignore) {
}
}
}
}
private static boolean supportsPosixPermissions() {
return SUPPORTS_POSIX_PERMISSIONS;
}
private static Stream<Arguments> params() {
List<Arguments> list = new ArrayList<Arguments>();
boolean[] falseAndTrue = new boolean[] {false, true};
for (PathType type : PathType.values()) {
String[] modes = new String[] {
"---------", "r--r--r--", "-w--w--w-", "rw-rw-rw-"
};
for (String mode : modes) {
for (boolean replaceExisting : falseAndTrue) {
for (boolean targetExists : falseAndTrue) {
list.add(Arguments.of(type, mode, replaceExisting,
targetExists));
}
}
}
}
return list.stream();
}
@ParameterizedTest
@EnabledIf("supportsPosixPermissions")
@MethodSource("params")
void copyFollow(PathType type, String mode, boolean replaceExisting,
boolean targetExists) throws IOException {
op(OpType.COPY, type, mode, replaceExisting, targetExists, true);
}
@ParameterizedTest
@EnabledIf("supportsPosixPermissions")
@MethodSource("params")
void copyNoFollow(PathType type, String mode, boolean replaceExisting,
boolean targetExists) throws IOException {
op(OpType.COPY, type, mode, replaceExisting, targetExists, false);
}
@ParameterizedTest
@EnabledIf("supportsPosixPermissions")
@MethodSource("params")
void move(PathType type, String mode, boolean replaceExisting,
boolean targetExists) throws IOException {
op(OpType.MOVE, type, mode, replaceExisting, targetExists, false);
}
void op(OpType op, PathType type, String mode, boolean replaceExisting,
boolean targetExists, boolean followLinks) throws IOException {
Path source = null;
Path target = null;
Path linkTarget = null;
try {
switch (type) {
case FILE ->
source = Files.createTempFile("file", "dat");
case DIR ->
source = Files.createTempDirectory("dir");
case LINK -> {
linkTarget = Files.createTempFile("link", "target");
Path link = Path.of("link");
source = Files.createSymbolicLink(link, linkTarget);
}
}
Set<PosixFilePermission> perms =
PosixFilePermissions.fromString(mode);
if (op == OpType.COPY && type == PathType.LINK && followLinks)
Files.setPosixFilePermissions(linkTarget, perms);
else
Files.setPosixFilePermissions(source, perms);
if (targetExists)
target = Files.createTempFile("file", "target");
else
target = Path.of("target");
Set<CopyOption> optionSet = new HashSet();
if (replaceExisting)
optionSet.add(REPLACE_EXISTING);
if (op == OpType.COPY && !followLinks)
optionSet.add(NOFOLLOW_LINKS);
CopyOption[] options = optionSet.toArray(new CopyOption[0]);
final Path src = source;
final Path dst = target;
if (type == PathType.FILE) {
if (op == OpType.COPY) {
try {
Files.copy(source, target, options);
assert Files.exists(target);
} catch (AccessDeniedException ade) {
assertTrue(mode.charAt(0) != 'r');
} catch (FileAlreadyExistsException faee) {
assertTrue(targetExists && !replaceExisting);
}
if (targetExists && mode.charAt(0) == '-')
assertTrue(Files.exists(target));
} else if (!replaceExisting && targetExists) {
assertThrows(FileAlreadyExistsException.class,
() -> Files.move(src, dst, options));
} else {
Files.move(source, target, options);
assert Files.exists(target);
}
} else if (type == PathType.DIR) {
if (op == OpType.COPY) {
try {
Files.copy(source, target, options);
assert Files.exists(target);
} catch (AccessDeniedException ade) {
assertTrue(mode.charAt(0) != 'r');
} catch (FileAlreadyExistsException faee) {
assertTrue(targetExists && !replaceExisting);
}
if (targetExists && mode.charAt(0) == '-')
assertTrue(Files.exists(target));
} else {
try {
Files.move(source, target, options);
assert Files.exists(target);
} catch (AccessDeniedException ade) {
assertTrue(mode.charAt(1) != 'w');
} catch (FileAlreadyExistsException faee) {
assertTrue(targetExists && !replaceExisting);
}
}
} else if (type == PathType.LINK) {
if (op == OpType.COPY) {
try {
Files.copy(source, target, options);
assert Files.exists(target);
} catch (AccessDeniedException ade) {
assertTrue(mode.charAt(0) != 'r');
} catch (FileAlreadyExistsException faee) {
assertTrue(targetExists && !replaceExisting);
}
} else {
try {
Files.move(source, target, options);
assert Files.exists(target);
} catch (AccessDeniedException ade) {
assertTrue(mode.charAt(0) != 'r');
} catch (FileAlreadyExistsException faee) {
assertTrue(targetExists && !replaceExisting);
}
}
} else {
assert false;
}
} finally {
try {
if (source != null)
Files.deleteIfExists(source);
} catch (IOException x) {
}
try {
if (target != null)
Files.deleteIfExists(target);
} catch (IOException x) {
}
try {
if (linkTarget != null)
Files.deleteIfExists(linkTarget);
} catch (IOException x) {
}
}
}
}