test/java/nio/file/DirectoryStream/Basic.java
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--- 26,36 ----
* @summary Unit test for java.nio.file.DirectoryStream
* @library ..
*/
import java.nio.file.*;
+ import static java.nio.file.Files.*;
import java.util.*;
import java.io.IOException;
public class Basic {
static boolean found;
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static void doTest(final Path dir) throws IOException {
DirectoryStream<Path> stream;
// test that directory is empty
! stream = dir.newDirectoryStream();
! try {
! if (stream.iterator().hasNext())
throw new RuntimeException("directory not empty");
- } finally {
- stream.close();
}
// create file in directory
final Path foo = Paths.get("foo");
! dir.resolve(foo).createFile();
// iterate over directory and check there is one entry
! stream = dir.newDirectoryStream();
found = false;
try {
for (Path entry: stream) {
! if (entry.getName().equals(foo)) {
if (found)
throw new RuntimeException("entry already found");
found = true;
} else {
! throw new RuntimeException("entry " + entry.getName() +
" not expected");
}
}
} finally {
stream.close();
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static void doTest(final Path dir) throws IOException {
DirectoryStream<Path> stream;
// test that directory is empty
! try (DirectoryStream<Path> ds = newDirectoryStream(dir)) {
! if (ds.iterator().hasNext())
throw new RuntimeException("directory not empty");
}
// create file in directory
final Path foo = Paths.get("foo");
! createFile(dir.resolve(foo));
// iterate over directory and check there is one entry
! stream = newDirectoryStream(dir);
found = false;
try {
for (Path entry: stream) {
! if (entry.getFileName().equals(foo)) {
if (found)
throw new RuntimeException("entry already found");
found = true;
} else {
! throw new RuntimeException("entry " + entry.getFileName() +
" not expected");
}
}
} finally {
stream.close();
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}
if (!found)
throw new RuntimeException("entry not found");
// check filtering: f* should match foo
! DirectoryStream.Filter<Path> filter = new DirectoryStream.Filter<Path>() {
private PathMatcher matcher =
dir.getFileSystem().getPathMatcher("glob:f*");
public boolean accept(Path file) {
return matcher.matches(file);
}
};
! stream = dir.newDirectoryStream(filter);
! try {
! for (Path entry: stream) {
! if (!entry.getName().equals(foo))
throw new RuntimeException("entry not expected");
}
- } finally {
- stream.close();
}
// check filtering: z* should not match any files
filter = new DirectoryStream.Filter<Path>() {
private PathMatcher matcher =
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}
if (!found)
throw new RuntimeException("entry not found");
// check filtering: f* should match foo
! DirectoryStream.Filter<Path> filter = new DirectoryStream.Filter<>() {
private PathMatcher matcher =
dir.getFileSystem().getPathMatcher("glob:f*");
public boolean accept(Path file) {
return matcher.matches(file);
}
};
! try (DirectoryStream<Path> ds = newDirectoryStream(dir, filter)) {
! for (Path entry: ds) {
! if (!entry.getFileName().equals(foo))
throw new RuntimeException("entry not expected");
}
}
// check filtering: z* should not match any files
filter = new DirectoryStream.Filter<Path>() {
private PathMatcher matcher =
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dir.getFileSystem().getPathMatcher("glob:z*");
public boolean accept(Path file) {
return matcher.matches(file);
}
};
! stream = dir.newDirectoryStream(filter);
! try {
! if (stream.iterator().hasNext())
throw new RuntimeException("no matching entries expected");
- } finally {
- stream.close();
}
// check that an IOException thrown by a filter is propagated
filter = new DirectoryStream.Filter<Path>() {
public boolean accept(Path file) throws IOException {
throw new java.util.zip.ZipException();
}
};
! stream = dir.newDirectoryStream(filter);
try {
stream.iterator().hasNext();
throw new RuntimeException("DirectoryIteratorException expected");
} catch (DirectoryIteratorException x) {
IOException cause = x.getCause();
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dir.getFileSystem().getPathMatcher("glob:z*");
public boolean accept(Path file) {
return matcher.matches(file);
}
};
! try (DirectoryStream<Path> ds = newDirectoryStream(dir, filter)) {
! if (ds.iterator().hasNext())
throw new RuntimeException("no matching entries expected");
}
// check that an IOException thrown by a filter is propagated
filter = new DirectoryStream.Filter<Path>() {
public boolean accept(Path file) throws IOException {
throw new java.util.zip.ZipException();
}
};
! stream = newDirectoryStream(dir, filter);
try {
stream.iterator().hasNext();
throw new RuntimeException("DirectoryIteratorException expected");
} catch (DirectoryIteratorException x) {
IOException cause = x.getCause();
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stream.close();
}
// check that exception or error thrown by filter is not thrown
// by newDirectoryStream or iterator method.
! stream = dir.newDirectoryStream(new DirectoryStream.Filter<Path>() {
public boolean accept(Path file) {
throw new RuntimeException("Should not be visible");
}
});
try {
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stream.close();
}
// check that exception or error thrown by filter is not thrown
// by newDirectoryStream or iterator method.
! stream = newDirectoryStream(dir, new DirectoryStream.Filter<Path>() {
public boolean accept(Path file) {
throw new RuntimeException("Should not be visible");
}
});
try {
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stream.close();
}
// test NotDirectoryException
try {
! dir.resolve(foo).newDirectoryStream();
throw new RuntimeException("NotDirectoryException not thrown");
} catch (NotDirectoryException x) {
}
// test UnsupportedOperationException
! stream = dir.newDirectoryStream();
Iterator<Path> i = stream.iterator();
i.next();
try {
i.remove();
throw new RuntimeException("UnsupportedOperationException expected");
} catch (UnsupportedOperationException uoe) {
}
// test IllegalStateException
! stream = dir.newDirectoryStream();
stream.iterator();
try {
// attempt to obtain second iterator
stream.iterator();
throw new RuntimeException("IllegalStateException not thrown as expected");
} catch (IllegalStateException x) {
}
stream.close();
! stream = dir.newDirectoryStream();
stream.close();
try {
// attempt to obtain iterator after stream is closed
stream.iterator();
throw new RuntimeException("IllegalStateException not thrown as expected");
} catch (IllegalStateException x) {
}
// test that iterator reads to end of stream when closed
! stream = dir.newDirectoryStream();
i = stream.iterator();
stream.close();
while (i.hasNext())
i.next();
! stream = dir.newDirectoryStream();
i = stream.iterator();
stream.close();
try {
for (;;) i.next();
} catch (NoSuchElementException expected) { }
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stream.close();
}
// test NotDirectoryException
try {
! newDirectoryStream(dir.resolve(foo));
throw new RuntimeException("NotDirectoryException not thrown");
} catch (NotDirectoryException x) {
}
// test UnsupportedOperationException
! stream = newDirectoryStream(dir);
Iterator<Path> i = stream.iterator();
i.next();
try {
i.remove();
throw new RuntimeException("UnsupportedOperationException expected");
} catch (UnsupportedOperationException uoe) {
}
// test IllegalStateException
! stream = newDirectoryStream(dir);
stream.iterator();
try {
// attempt to obtain second iterator
stream.iterator();
throw new RuntimeException("IllegalStateException not thrown as expected");
} catch (IllegalStateException x) {
}
stream.close();
! stream = newDirectoryStream(dir);
stream.close();
try {
// attempt to obtain iterator after stream is closed
stream.iterator();
throw new RuntimeException("IllegalStateException not thrown as expected");
} catch (IllegalStateException x) {
}
// test that iterator reads to end of stream when closed
! stream = newDirectoryStream(dir);
i = stream.iterator();
stream.close();
while (i.hasNext())
i.next();
! stream = newDirectoryStream(dir);
i = stream.iterator();
stream.close();
try {
for (;;) i.next();
} catch (NoSuchElementException expected) { }