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/* @test
* @bug 4313887 6838333 7017446
* @summary Unit test for java.nio.file.Files
* @library ..
*/
import java.nio.file.*;
import java.nio.file.attribute.*;
import java.io.IOException;
import java.util.*;
import java.util.concurrent.TimeUnit;
/**
* Exercises getAttribute/setAttribute/readAttributes methods.
*/
public class FileAttributes {
static void assertTrue(boolean okay) {
if (!okay)
throw new RuntimeException("Assertion Failed");
}
static void checkEqual(Object o1, Object o2) {
if (o1 == null) {
assertTrue(o2 == null);
} else {
assertTrue (o1.equals(o2));
}
}
// Exercise getAttribute/setAttribute/readAttributes on basic attributes
static void checkBasicAttributes(Path file, BasicFileAttributes attrs)
throws IOException
{
// getAttribute
checkEqual(attrs.size(), Files.getAttribute(file, "size"));
checkEqual(attrs.lastModifiedTime(), Files.getAttribute(file, "basic:lastModifiedTime"));
checkEqual(attrs.lastAccessTime(), Files.getAttribute(file, "lastAccessTime"));
checkEqual(attrs.creationTime(), Files.getAttribute(file, "basic:creationTime"));
assertTrue((Boolean)Files.getAttribute(file, "isRegularFile"));
assertTrue(!(Boolean)Files.getAttribute(file, "basic:isDirectory"));
assertTrue(!(Boolean)Files.getAttribute(file, "isSymbolicLink"));
assertTrue(!(Boolean)Files.getAttribute(file, "basic:isOther"));
checkEqual(attrs.fileKey(), Files.getAttribute(file, "basic:fileKey"));
// setAttribute
FileTime modTime = attrs.lastModifiedTime();
Files.setAttribute(file, "basic:lastModifiedTime", FileTime.fromMillis(0L));
checkEqual(Files.getLastModifiedTime(file),
FileTime.fromMillis(0L));
Files.setAttribute(file, "lastModifiedTime", modTime);
checkEqual(Files.getLastModifiedTime(file), modTime);
Map<String,Object> map;
map = Files.readAttributes(file, "*");
assertTrue(map.size() >= 9);
checkEqual(attrs.isRegularFile(), map.get("isRegularFile")); // check one
map = Files.readAttributes(file, "basic:*");
assertTrue(map.size() >= 9);
checkEqual(attrs.lastAccessTime(), map.get("lastAccessTime")); // check one
map = Files.readAttributes(file, "size,lastModifiedTime");
assertTrue(map.size() == 2);
checkEqual(attrs.size(), map.get("size"));
checkEqual(attrs.lastModifiedTime(), map.get("lastModifiedTime"));
}
// Exercise getAttribute/setAttribute/readAttributes on posix attributes
static void checkPosixAttributes(Path file, PosixFileAttributes attrs)
throws IOException
{
checkBasicAttributes(file, attrs);
// getAttribute
checkEqual(attrs.permissions(), Files.getAttribute(file, "posix:permissions"));
checkEqual(attrs.owner(), Files.getAttribute(file, "posix:owner"));
checkEqual(attrs.group(), Files.getAttribute(file, "posix:group"));
// setAttribute
Set<PosixFilePermission> orig = attrs.permissions();
Set<PosixFilePermission> newPerms = new HashSet<>(orig);
newPerms.remove(PosixFilePermission.OTHERS_READ);
newPerms.remove(PosixFilePermission.OTHERS_WRITE);
newPerms.remove(PosixFilePermission.OTHERS_EXECUTE);
Files.setAttribute(file, "posix:permissions", newPerms);
checkEqual(Files.getPosixFilePermissions(file), newPerms);
Files.setAttribute(file, "posix:permissions", orig);
checkEqual(Files.getPosixFilePermissions(file), orig);
Files.setAttribute(file, "posix:owner", attrs.owner());
Files.setAttribute(file, "posix:group", attrs.group());
// readAttributes
Map<String,Object> map;
map = Files.readAttributes(file, "posix:*");
assertTrue(map.size() >= 12);
checkEqual(attrs.permissions(), map.get("permissions")); // check one
map = Files.readAttributes(file, "posix:size,owner");
assertTrue(map.size() == 2);
checkEqual(attrs.size(), map.get("size"));
checkEqual(attrs.owner(), map.get("owner"));
}
// Exercise getAttribute/readAttributes on unix attributes
static void checkUnixAttributes(Path file) throws IOException {
// getAttribute
int mode = (Integer)Files.getAttribute(file, "unix:mode");
long ino = (Long)Files.getAttribute(file, "unix:ino");
long dev = (Long)Files.getAttribute(file, "unix:dev");
long rdev = (Long)Files.getAttribute(file, "unix:rdev");
int nlink = (Integer)Files.getAttribute(file, "unix:nlink");
int uid = (Integer)Files.getAttribute(file, "unix:uid");
int gid = (Integer)Files.getAttribute(file, "unix:gid");
FileTime ctime = (FileTime)Files.getAttribute(file, "unix:ctime");
// readAttributes
Map<String,Object> map;
map = Files.readAttributes(file, "unix:*");
assertTrue(map.size() >= 20);
map = Files.readAttributes(file, "unix:size,uid,gid");
assertTrue(map.size() == 3);
checkEqual(map.get("size"),
Files.readAttributes(file, BasicFileAttributes.class).size());
}
// Exercise getAttribute/setAttribute on dos attributes
static void checkDosAttributes(Path file, DosFileAttributes attrs)
throws IOException
{
checkBasicAttributes(file, attrs);
// getAttribute
checkEqual(attrs.isReadOnly(), Files.getAttribute(file, "dos:readonly"));
checkEqual(attrs.isHidden(), Files.getAttribute(file, "dos:hidden"));
checkEqual(attrs.isSystem(), Files.getAttribute(file, "dos:system"));
checkEqual(attrs.isArchive(), Files.getAttribute(file, "dos:archive"));
// setAttribute
boolean value;
value = attrs.isReadOnly();
Files.setAttribute(file, "dos:readonly", !value);
checkEqual(Files.readAttributes(file, DosFileAttributes.class).isReadOnly(), !value);
Files.setAttribute(file, "dos:readonly", value);
checkEqual(Files.readAttributes(file, DosFileAttributes.class).isReadOnly(), value);
value = attrs.isHidden();
Files.setAttribute(file, "dos:hidden", !value);
checkEqual(Files.readAttributes(file, DosFileAttributes.class).isHidden(), !value);
Files.setAttribute(file, "dos:hidden", value);
checkEqual(Files.readAttributes(file, DosFileAttributes.class).isHidden(), value);
value = attrs.isSystem();
Files.setAttribute(file, "dos:system", !value);
checkEqual(Files.readAttributes(file, DosFileAttributes.class).isSystem(), !value);
Files.setAttribute(file, "dos:system", value);
checkEqual(Files.readAttributes(file, DosFileAttributes.class).isSystem(), value);
value = attrs.isArchive();
Files.setAttribute(file, "dos:archive", !value);
checkEqual(Files.readAttributes(file, DosFileAttributes.class).isArchive(), !value);
Files.setAttribute(file, "dos:archive", value);
checkEqual(Files.readAttributes(file, DosFileAttributes.class).isArchive(), value);
// readAttributes
Map<String,Object> map;
map = Files.readAttributes(file, "dos:*");
assertTrue(map.size() >= 13);
checkEqual(attrs.isReadOnly(), map.get("readonly")); // check one
map = Files.readAttributes(file, "dos:size,hidden");
assertTrue(map.size() == 2);
checkEqual(attrs.size(), map.get("size"));
checkEqual(attrs.isHidden(), map.get("hidden"));
}
static void checkBadSet(Path file, String attribute, Object value)
throws IOException
{
try {
Files.setAttribute(file, attribute, 0);
throw new RuntimeException("IllegalArgumentException expected");
} catch (IllegalArgumentException ignore) { }
}
static void checkBadGet(Path file, String attribute) throws IOException {
try {
Files.getAttribute(file, attribute);
throw new RuntimeException("IllegalArgumentException expected");
} catch (IllegalArgumentException ignore) { }
}
static void checkBadRead(Path file, String attribute) throws IOException {
try {
Files.readAttributes(file, attribute);
throw new RuntimeException("IllegalArgumentException expected");
} catch (IllegalArgumentException ignore) { }
}
static void miscTests(Path file) throws IOException {
// unsupported views
try {
Files.setAttribute(file, "foo:bar", 0);
throw new RuntimeException("UnsupportedOperationException expected");
} catch (UnsupportedOperationException ignore) { }
try {
Files.getAttribute(file, "foo:bar");
throw new RuntimeException("UnsupportedOperationException expected");
} catch (UnsupportedOperationException ignore) { }
try {
Files.readAttributes(file, "foo:*");
throw new RuntimeException("UnsupportedOperationException expected");
} catch (UnsupportedOperationException ignore) { }
// bad args
checkBadSet(file, "", 0);
checkBadSet(file, "basic:", 0);
checkBadSet(file, "basic:foobar", 0);
checkBadGet(file, "");
checkBadGet(file, "basic:");
checkBadGet(file, "basic:foobar");
checkBadGet(file, "basic:size,lastModifiedTime");
checkBadGet(file, "basic:*");
checkBadRead(file, "");
checkBadRead(file, "basic:");
checkBadRead(file, "basic:foobar");
checkBadRead(file, "basic:size,foobar");
// nulls
try {
Files.getAttribute(file, null);
throw new RuntimeException("NullPointerException expected");
} catch (NullPointerException npe) { }
try {
Files.getAttribute(file, "isRegularFile", (LinkOption[])null);
throw new RuntimeException("NullPointerException expected");
} catch (NullPointerException npe) { }
try {
Files.setAttribute(file, null, 0L);
throw new RuntimeException("NullPointerException expected");
} catch (NullPointerException npe) { }
}
static void doTests(Path dir) throws IOException {
Path file = dir.resolve("foo");
Files.createFile(file);
FileStore store = Files.getFileStore(file);
try {
checkBasicAttributes(file,
Files.readAttributes(file, BasicFileAttributes.class));
if (store.supportsFileAttributeView("posix"))
checkPosixAttributes(file,
Files.readAttributes(file, PosixFileAttributes.class));
if (store.supportsFileAttributeView("unix"))
checkUnixAttributes(file);
if (store.supportsFileAttributeView("dos"))
checkDosAttributes(file,
Files.readAttributes(file, DosFileAttributes.class));
miscTests(file);
} finally {
Files.delete(file);
}
}
public static void main(String[] args) throws IOException {
Path dir = TestUtil.createTemporaryDirectory();
try {
doTests(dir);
} finally {
TestUtil.removeAll(dir);
}
}
}