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/*
* @test
* @bug 8251496 8268960
* @summary Tests for methods in Headers class
* @modules jdk.httpserver/com.sun.net.httpserver:+open
* jdk.httpserver/sun.net.httpserver:+open
* @library /test/lib
* @build jdk.test.lib.net.URIBuilder
* @run testng/othervm HeadersTest
*/
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.concurrent.CompletableFuture;
import com.sun.net.httpserver.Headers;
import com.sun.net.httpserver.HttpExchange;
import com.sun.net.httpserver.HttpHandler;
import com.sun.net.httpserver.HttpServer;
import jdk.test.lib.net.URIBuilder;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;
import sun.net.httpserver.UnmodifiableHeaders;
import static java.net.http.HttpClient.Builder.NO_PROXY;
import static org.testng.Assert .assertEquals;
import static org.testng.Assert .assertFalse;
import static org.testng.Assert .assertNotEquals;
import static org.testng.Assert .assertThrows;
import static org.testng.Assert .assertTrue;
public class HeadersTest {
static final Class <IllegalArgumentException> IAE = IllegalArgumentException.class ;
static final Class <IOException> IOE = IOException.class ;
static final Class <NullPointerException> NPE = NullPointerException.class ;
@Test
public static void testDefaultConstructor() {
var headers = new Headers();
assertTrue(headers.isEmpty());
}
@Test
public static void testNull() {
final Headers h = new Headers();
h.put("Foo" , List.of("Bar" ));
final var mapNullKey = new HashMap<String, List<String>>();
mapNullKey.put(null , List.of("Bar" ));
final var mapNullList = new HashMap<String, List<String>>();
mapNullList.put("Foo" , null );
final var listWithNull = new LinkedList<String>();
listWithNull.add(null );
final var mapNullInList = new HashMap<String, List<String>>();
mapNullInList.put("Foo" , listWithNull);
assertThrows(NPE, () -> h.add(null , "Bar" ));
assertThrows(NPE, () -> h.add("Foo" , null ));
assertThrows(NPE, () -> h.compute(null , (k, v) -> List.of("Bar" )));
assertThrows(NPE, () -> h.compute("Foo" , (k, v) -> listWithNull));
assertThrows(NPE, () -> h.computeIfAbsent(null , (k) -> List.of("Bar" )));
assertThrows(NPE, () -> h.computeIfAbsent("Foo-foo" , (k) -> listWithNull));
assertThrows(NPE, () -> h.computeIfPresent(null , (k, v) -> List.of("Bar" )));
assertThrows(NPE, () -> h.computeIfPresent("Foo" , (k, v) -> listWithNull));
assertThrows(NPE, () -> h.containsKey(null ));
assertThrows(NPE, () -> h.containsValue(null ));
assertThrows(NPE, () -> h.get(null ));
assertThrows(NPE, () -> h.getFirst(null ));
assertThrows(NPE, () -> h.getOrDefault(null , List.of("Bar" )));
assertThrows(NPE, () -> h.merge(null , List.of("Bar" ), (k, v) -> List.of("Bar" )));
assertThrows(NPE, () -> h.merge("Foo-foo" , null , (k, v) -> List.of("Bar" )));
assertThrows(NPE, () -> h.merge("Foo-foo" , listWithNull, (k, v) -> List.of("Bar" )));
assertThrows(NPE, () -> h.merge("Foo" , List.of("Bar" ), (k, v) -> listWithNull));
assertThrows(NPE, () -> h.put(null , List.of("Bar" )));
assertThrows(NPE, () -> h.put("Foo" , null ));
assertThrows(NPE, () -> h.put("Foo" , listWithNull));
assertThrows(NPE, () -> h.putAll(mapNullKey));
assertThrows(NPE, () -> h.putAll(mapNullList));
assertThrows(NPE, () -> h.putAll(mapNullInList));
assertThrows(NPE, () -> h.putIfAbsent(null , List.of("Bar" )));
assertThrows(NPE, () -> h.putIfAbsent("Foo-foo" , null ));
assertThrows(NPE, () -> h.putIfAbsent("Foo-foo" , listWithNull));
assertThrows(NPE, () -> h.remove(null ));
assertThrows(NPE, () -> h.remove(null , List.of("Bar" )));
assertThrows(NPE, () -> h.replace(null , List.of("Bar" )));
assertThrows(NPE, () -> h.replace("Foo" , null ));
assertThrows(NPE, () -> h.replace("Foo" , listWithNull));
assertThrows(NPE, () -> h.replace(null , List.of("Bar" ), List.of("Bar" )));
assertThrows(NPE, () -> h.replace("Foo" , List.of("Bar" ), null ));
assertThrows(NPE, () -> h.replace("Foo" , List.of("Bar" ), listWithNull));
assertThrows(NPE, () -> h.replaceAll((k, v) -> listWithNull));
assertThrows(NPE, () -> h.replaceAll((k, v) -> null ));
assertThrows(NPE, () -> h.set(null , "Bar" ));
assertThrows(NPE, () -> h.set("Foo" , null ));
}
@DataProvider
public Object[][] responseHeaders() {
final var listWithNull = new LinkedList<String>();
listWithNull.add(null );
return new Object[][] {
{null , List.of("Bar" )},
{"Foo" , null },
{"Foo" , listWithNull}
};
}
/**
* Confirms HttpExchange::sendResponseHeaders throws NPE if response headers
* contain a null key or value.
*/
@Test(dataProvider = "responseHeaders" )
public void testNullResponseHeaders(String headerKey, List<String> headerVal)
throws Exception {
var handler = new Handler(headerKey, headerVal);
var server = HttpServer.create(new InetSocketAddress(InetAddress.getLoopbackAddress(), 0), 0);
server.createContext("/" , handler);
server.start();
try {
var client = HttpClient.newBuilder().proxy(NO_PROXY).build();
var request = HttpRequest.newBuilder(uri(server, "" )).build();
assertThrows(IOE, () -> client.send(request, HttpResponse.BodyHandlers.ofString()));
assertEquals(throwable.get().getClass(), NPE);
assertTrue(Arrays.stream(throwable.get().getStackTrace())
.anyMatch(e -> e.getClassName().equals("sun.net.httpserver.HttpExchangeImpl" )
|| e.getMethodName().equals("sendResponseHeaders" )));
} finally {
server.stop(0);
}
}
private static CompletableFuture<Throwable> throwable = new CompletableFuture<>();
private record Handler(String headerKey, List<String> headerVal) implements HttpHandler {
@Override
public void handle(HttpExchange exchange) throws IOException {
try (InputStream is = exchange.getRequestBody();
OutputStream os = exchange.getResponseBody()) {
is.readAllBytes();
var resp = "hello world" .getBytes(StandardCharsets.UTF_8);
putHeaders(exchange.getResponseHeaders(), headerKey, headerVal);
try {
exchange.sendResponseHeaders(200, resp.length);
} catch (Throwable t) { // expect NPE
throwable.complete(t);
throw t;
}
os.write(resp);
}
}
}
private static URI uri(HttpServer server, String path) {
return URIBuilder.newBuilder()
.host("localhost" )
.port(server.getAddress().getPort())
.scheme("http" )
.path("/" + path)
.buildUnchecked();
}
/**
* Sets headers reflectively to be able to set a null key or value.
*/
private static void putHeaders(Headers headers,
String headerKey,
List<String> headerVal) {
try {
final var map = new HashMap<String, List<String>>();
map.put(headerKey, headerVal);
var mapField = Headers.class .getDeclaredField("map" );
mapField.setAccessible(true );
mapField.set(headers, map);
} catch (Exception e) {
throw new RuntimeException("Could not set headers reflectively" , e);
}
}
@DataProvider
public static Object[][] headerPairs() {
final var h1 = new Headers();
final var h2 = new Headers();
final var h3 = new Headers();
final var h4 = new Headers();
final var h5 = new Headers();
h1.put("Accept-Encoding" , List.of("gzip, deflate" ));
h2.put("accept-encoding" , List.of("gzip, deflate" ));
h3.put("AccePT-ENCoding" , List.of("gzip, deflate" ));
h4.put("ACCept-EncodING" , List.of("gzip, deflate" ));
h5.put("ACCEPT-ENCODING" , List.of("gzip, deflate" ));
final var headers = List.of(h1, h2, h3, h4, h5);
return headers.stream() // cartesian product of headers
.flatMap(header1 -> headers.stream().map(header2 -> new Headers[] { header1, header2 }))
.toArray(Object[][]::new );
}
@Test(dataProvider = "headerPairs" )
public static void testEqualsAndHashCode(Headers h1, Headers h2) {
// avoid testng's asserts(Map, Map) as they don't call Headers::equals
assertTrue(h1.equals(h2), "Headers differ" );
assertEquals(h1.hashCode(), h2.hashCode(), "hashCode differ for "
+ List.of(h1, h2));
}
@Test
public static void testEqualsMap() {
final var h = new Headers();
final var m = new HashMap<String, List<String>>();
assertTrue(h.equals(m));
assertTrue(m.equals(h));
assertFalse(h.equals(null ), "null cannot be equal to Headers" );
}
@Test
public static void testToString() {
final var h = new Headers();
h.put("Accept-Encoding" , List.of("gzip, deflate" ));
assertTrue(h.toString().equals("Headers { {Accept-encoding=[gzip, deflate]} }" ));
}
@Test
public static void testPutAll() {
final var h0 = new Headers();
final var map = new HashMap<String, List<String>>();
map.put("a" , null );
assertThrows(NPE, () -> h0.putAll(map));
final var list = new ArrayList<String>();
list.add(null );
assertThrows(NPE, () -> h0.putAll(Map.of("a" , list)));
assertThrows(IAE, () -> h0.putAll(Map.of("a" , List.of("\n" ))));
final var h1 = new Headers();
h1.put("a" , List.of("1" ));
h1.put("b" , List.of("2" ));
final var h2 = new Headers();
h2.putAll(Map.of("a" , List.of("1" ), "b" , List.of("2" )));
assertTrue(h1.equals(h2));
}
@Test
public static void testReplaceAll() {
final var h1 = new Headers();
h1.put("a" , List.of("1" ));
h1.put("b" , List.of("2" ));
final var list = new ArrayList<String>();
list.add(null );
assertThrows(NPE, () -> h1.replaceAll((k, v) -> list));
assertThrows(IAE, () -> h1.replaceAll((k, v) -> List.of("\n" )));
h1.replaceAll((k, v) -> {
String s = h1.get(k).get(0);
return List.of(s+s);
});
final var h2 = new Headers();
h2.put("a" , List.of("11" ));
h2.put("b" , List.of("22" ));
assertTrue(h1.equals(h2));
}
@Test
public static void test1ArgConstructorNull() {
assertThrows(NPE, () -> new Headers(null ));
{
final var m = new HashMap<String, List<String>>();
m.put(null , List.of("Bar" ));
assertThrows(NPE, () -> new Headers(m));
}
{
final var m = new HashMap<String, List<String>>();
m.put("Foo" , null );
assertThrows(NPE, () -> new Headers(m));
}
{
final var m = new HashMap<String, List<String>>();
final var list = new LinkedList<String>();
list.add(null );
m.put("Foo" , list);
assertThrows(NPE, () -> new Headers(m));
}
}
@Test
public static void test1ArgConstructor() {
{
var h = new Headers(new Headers());
assertTrue(h.isEmpty());
}
{
var h = new Headers(Map.of("Foo" , List.of("Bar" )));
assertEquals(h.get("Foo" ), List.of("Bar" ));
assertEquals(h.size(), 1);
}
{
var h1 = new Headers(new UnmodifiableHeaders(new Headers()));
assertTrue(h1.isEmpty());
h1.put("Foo" , List.of("Bar" )); // modifiable
assertEquals(h1.get("Foo" ), List.of("Bar" ));
assertEquals(h1.size(), 1);
var h2 = new Headers(h1);
assertEquals(h2.get("Foo" ), List.of("Bar" ));
assertEquals(h2.size(), 1);
assertEquals(h1, h2);
h1.set("Foo" , "Barbar" );
assertNotEquals(h1, h2);
}
}
@Test
public static void testMutableHeaders() {
{
var h = new Headers();
h.add("Foo" , "Bar" );
h.add("Foo" , "Bazz" );
h.get("Foo" ).remove(0);
h.remove("Foo" );
h.clear();
}
{
var h = new Headers(Map.of("Foo" , List.of("Bar" )));
h.get("Foo" ).add("Bazz" );
h.get("Foo" ).remove(0);
h.remove("Foo" );
h.clear();
}
}
@Test
public static void testOfNull() {
assertThrows(NPE, () -> Headers.of((String[])null ));
assertThrows(NPE, () -> Headers.of(null , "Bar" ));
assertThrows(NPE, () -> Headers.of("Foo" , null ));
assertThrows(NPE, () -> Headers.of((Map<String, List<String>>) null ));
{
final var m = new HashMap<String, List<String>>();
m.put(null , List.of("Bar" ));
assertThrows(NPE, () -> Headers.of(m));
}
{
final var m = new HashMap<String, List<String>>();
m.put("Foo" , null );
assertThrows(NPE, () -> Headers.of(m));
}
{
final var m = new HashMap<String, List<String>>();
final var list = new LinkedList<String>();
list.add(null );
m.put("Foo" , list);
assertThrows(NPE, () -> Headers.of(m));
}
}
@Test
public static void testOf() {
final var h = Headers.of("a" , "1" , "b" , "2" );
assertEquals(h.size(), 2);
List.of("a" , "b" ).forEach(n -> assertTrue(h.containsKey(n)));
List.of("1" , "2" ).forEach(v -> assertTrue(h.containsValue(List.of(v))));
}
@Test
public static void testOfEmpty() {
for (var h : List.of(Headers.of(), Headers.of(new String[] { }))) {
assertEquals(h.size(), 0);
assertTrue(h.isEmpty());
}
}
@Test
public static void testOfNumberOfElements() {
assertThrows(IAE, () -> Headers.of("a" ));
assertThrows(IAE, () -> Headers.of("a" , "1" , "b" ));
}
@Test
public static void testOfMultipleValues() {
final var h = Headers.of("a" , "1" , "b" , "1" , "b" , "2" , "b" , "3" );
assertEquals(h.size(), 2);
List.of("a" , "b" ).forEach(n -> assertTrue(h.containsKey(n)));
List.of(List.of("1" ), List.of("1" , "2" , "3" )).forEach(v -> assertTrue(h.containsValue(v)));
}
// Immutability tests in UnmodifiableHeadersTest.java
}
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