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[BAEL-9555] - Created a core-java-modules folder

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amit2103
2019-05-05 17:22:09 +05:30
parent 8b63b0d90a
commit 3bae5e5334
1480 changed files with 25600 additions and 5594 deletions
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112
core-java-modules/core-java-networking/src/test/java/com/baeldung/encoderdecoder/EncoderDecoderUnitTest.java Normal file
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package com.baeldung.encoderdecoder;
import static java.util.stream.Collectors.joining;
import static org.hamcrest.CoreMatchers.is;
import java.io.UnsupportedEncodingException;
import java.net.URL;
import java.net.URLDecoder;
import java.net.URLEncoder;
import java.nio.charset.StandardCharsets;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import org.hamcrest.CoreMatchers;
import org.junit.Assert;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.util.UriUtils;
public class EncoderDecoderUnitTest {
private static final Logger LOGGER = LoggerFactory.getLogger(EncoderDecoderUnitTest.class);
private static final String testUrl = "http://www.baeldung.com?key1=value+1&key2=value%40%21%242&key3=value%253";
private static final String testUrlWithPath = "http://www.baeldung.com/path+1?key1=value+1&key2=value%40%21%242&key3=value%253";
private String encodeValue(String value) {
String encoded = null;
try {
encoded = URLEncoder.encode(value, StandardCharsets.UTF_8.toString());
} catch (UnsupportedEncodingException e) {
LOGGER.error("Error encoding parameter {}", e.getMessage(), e);
}
return encoded;
}
private String decode(String value) {
String decoded = null;
try {
decoded = URLDecoder.decode(value, StandardCharsets.UTF_8.toString());
} catch (UnsupportedEncodingException e) {
LOGGER.error("Error encoding parameter {}", e.getMessage(), e);
}
return decoded;
}
@Test
public void givenURL_whenAnalyze_thenCorrect() throws Exception {
URL url = new URL(testUrl);
Assert.assertThat(url.getProtocol(), is("http"));
Assert.assertThat(url.getHost(), is("www.baeldung.com"));
Assert.assertThat(url.getQuery(), is("key1=value+1&key2=value%40%21%242&key3=value%253"));
}
@Test
public void givenRequestParam_whenUTF8Scheme_thenEncode() throws Exception {
Map<String, String> requestParams = new HashMap<>();
requestParams.put("key1", "value 1");
requestParams.put("key2", "value@!$2");
requestParams.put("key3", "value%3");
String encodedURL = requestParams.keySet().stream().map(key -> key + "=" + encodeValue(requestParams.get(key))).collect(joining("&", "http://www.baeldung.com?", ""));
Assert.assertThat(testUrl, is(encodedURL));
}
@Test
public void givenRequestParam_whenUTF8Scheme_thenDecodeRequestParams() throws Exception {
URL url = new URL(testUrl);
String query = url.getQuery();
String decodedQuery = Arrays.stream(query.split("&")).map(param -> param.split("=")[0] + "=" + decode(param.split("=")[1])).collect(joining("&"));
Assert.assertEquals("http://www.baeldung.com?key1=value 1&key2=value@!$2&key3=value%3", url.getProtocol() + "://" + url.getHost() + "?" + decodedQuery);
}
private String encodePath(String path) {
try {
path = UriUtils.encodePath(path, "UTF-8");
} catch (UnsupportedEncodingException e) {
LOGGER.error("Error encoding parameter {}", e.getMessage(), e);
}
return path;
}
@Test
public void givenPathSegment_thenEncodeDecode() throws UnsupportedEncodingException {
String pathSegment = "/Path 1/Path+2";
String encodedPathSegment = encodePath(pathSegment);
String decodedPathSegment = UriUtils.decode(encodedPathSegment, "UTF-8");
Assert.assertEquals("/Path%201/Path+2", encodedPathSegment);
Assert.assertEquals("/Path 1/Path+2", decodedPathSegment);
}
@Test
public void givenPathAndRequestParam_whenUTF8Scheme_thenEncode() throws Exception {
Map<String, String> requestParams = new HashMap<>();
requestParams.put("key1", "value 1");
requestParams.put("key2", "value@!$2");
requestParams.put("key3", "value%3");
String path = "path+1";
String encodedURL = requestParams.keySet().stream().map(key -> key + "=" + encodeValue(requestParams.get(key))).collect(joining("&", "http://www.baeldung.com/" + encodePath(path) + "?", ""));
Assert.assertThat(testUrlWithPath, is(encodedURL));
}
}

188
core-java-modules/core-java-networking/src/test/java/com/baeldung/http/HttpRequestLiveTest.java Normal file
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package com.baeldung.http;
import org.apache.commons.lang3.StringUtils;
import org.junit.Test;
import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.Reader;
import java.net.CookieManager;
import java.net.HttpCookie;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
public class HttpRequestLiveTest {
@Test
public void whenGetRequest_thenOk() throws IOException {
URL url = new URL("http://example.com");
HttpURLConnection con = (HttpURLConnection) url.openConnection();
con.setRequestMethod("GET");
Map<String, String> parameters = new HashMap<>();
parameters.put("param1", "val");
con.setDoOutput(true);
DataOutputStream out = new DataOutputStream(con.getOutputStream());
out.writeBytes(ParameterStringBuilder.getParamsString(parameters));
out.flush();
out.close();
con.setConnectTimeout(5000);
con.setReadTimeout(5000);
int status = con.getResponseCode();
BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));
String inputLine;
StringBuilder content = new StringBuilder();
while ((inputLine = in.readLine()) != null) {
content.append(inputLine);
}
in.close();
assertEquals("status code incorrect", status, 200);
assertTrue("content incorrect", content.toString()
.contains("Example Domain"));
}
@Test
public void whenPostRequest_thenOk() throws IOException {
URL url = new URL("http://example.com");
HttpURLConnection con = (HttpURLConnection) url.openConnection();
con.setRequestMethod("POST");
con.setRequestProperty("Content-Type", "application/json");
Map<String, String> parameters = new HashMap<>();
parameters.put("param1", "val");
con.setDoOutput(true);
DataOutputStream out = new DataOutputStream(con.getOutputStream());
out.writeBytes(ParameterStringBuilder.getParamsString(parameters));
out.flush();
out.close();
int status = con.getResponseCode();
BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));
String inputLine;
StringBuilder content = new StringBuilder();
while ((inputLine = in.readLine()) != null) {
content.append(inputLine);
}
in.close();
assertEquals("status code incorrect", status, 200);
}
@Test
public void whenGetCookies_thenOk() throws IOException {
URL url = new URL("http://example.com");
HttpURLConnection con = (HttpURLConnection) url.openConnection();
con.setRequestMethod("GET");
CookieManager cookieManager = new CookieManager();
String cookiesHeader = con.getHeaderField("Set-Cookie");
Optional<HttpCookie> usernameCookie = null;
if (cookiesHeader != null) {
List<HttpCookie> cookies = HttpCookie.parse(cookiesHeader);
cookies.forEach(cookie -> cookieManager.getCookieStore()
.add(null, cookie));
usernameCookie = cookies.stream()
.findAny()
.filter(cookie -> cookie.getName()
.equals("username"));
}
if (usernameCookie == null) {
cookieManager.getCookieStore()
.add(null, new HttpCookie("username", "john"));
}
con.disconnect();
con = (HttpURLConnection) url.openConnection();
con.setRequestProperty("Cookie", StringUtils.join(cookieManager.getCookieStore()
.getCookies(), ";"));
int status = con.getResponseCode();
assertEquals("status code incorrect", status, 200);
}
@Test
public void whenRedirect_thenOk() throws IOException {
URL url = new URL("http://example.com");
HttpURLConnection con = (HttpURLConnection) url.openConnection();
con.setRequestMethod("GET");
con.setInstanceFollowRedirects(true);
int status = con.getResponseCode();
if (status == HttpURLConnection.HTTP_MOVED_TEMP || status == HttpURLConnection.HTTP_MOVED_PERM) {
String location = con.getHeaderField("Location");
URL newUrl = new URL(location);
con = (HttpURLConnection) newUrl.openConnection();
}
assertEquals("status code incorrect", con.getResponseCode(), 200);
}
@Test
public void whenFailedRequest_thenOk() throws IOException {
URL url = new URL("http://example.com");
HttpURLConnection con = (HttpURLConnection) url.openConnection();
con.setRequestMethod("POST");
con.setConnectTimeout(5000);
con.setReadTimeout(5000);
int status = con.getResponseCode();
Reader streamReader = null;
if (status > 299) {
streamReader = new InputStreamReader(con.getErrorStream());
} else {
streamReader = new InputStreamReader(con.getInputStream());
}
BufferedReader in = new BufferedReader(streamReader);
String inputLine;
StringBuilder content = new StringBuilder();
while ((inputLine = in.readLine()) != null) {
content.append(inputLine);
}
in.close();
con.disconnect();
assertEquals("status code incorrect", status, 411);
assertTrue("error content", content.toString()
.contains("411 - Length Required"));
}
@Test
public void whenGetRequestFullResponse_thenOk() throws IOException {
URL url = new URL("http://example.com");
HttpURLConnection con = (HttpURLConnection) url.openConnection();
con.setRequestMethod("GET");
con.setConnectTimeout(5000);
con.setReadTimeout(5000);
String fullResponse = FullResponseBuilder.getFullResponse(con);
con.disconnect();
assertEquals("status code incorrect", con.getResponseCode(), 200);
assertTrue("header incorrect", fullResponse.contains("Content-Type: text/html; charset=UTF-8"));
assertTrue("response incorrect", fullResponse.contains("<!doctype html><html><head>"));
}
}

118
core-java-modules/core-java-networking/src/test/java/com/baeldung/networking/interfaces/NetworkInterfaceManualTest.java Normal file
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package com.baeldung.networking.interfaces;
import org.junit.Test;
import java.net.*;
import java.util.Enumeration;
import java.util.List;
import static org.junit.Assert.*;
public class NetworkInterfaceManualTest {
@Test
public void givenName_whenReturnsNetworkInterface_thenCorrect() throws SocketException {
NetworkInterface nif = NetworkInterface.getByName("lo");
assertNotNull(nif);
}
@Test
public void givenInExistentName_whenReturnsNull_thenCorrect() throws SocketException {
NetworkInterface nif = NetworkInterface.getByName("inexistent_name");
assertNull(nif);
}
@Test
public void givenIP_whenReturnsNetworkInterface_thenCorrect() throws SocketException, UnknownHostException {
byte[] ip = new byte[] { 127, 0, 0, 1 };
NetworkInterface nif = NetworkInterface.getByInetAddress(InetAddress.getByAddress(ip));
assertNotNull(nif);
}
@Test
public void givenHostName_whenReturnsNetworkInterface_thenCorrect() throws SocketException, UnknownHostException {
NetworkInterface nif = NetworkInterface.getByInetAddress(InetAddress.getByName("localhost"));
assertNotNull(nif);
}
@Test
public void givenLocalHost_whenReturnsNetworkInterface_thenCorrect() throws SocketException, UnknownHostException {
NetworkInterface nif = NetworkInterface.getByInetAddress(InetAddress.getLocalHost());
assertNotNull(nif);
}
@Test
public void givenLoopBack_whenReturnsNetworkInterface_thenCorrect() throws SocketException, UnknownHostException {
NetworkInterface nif = NetworkInterface.getByInetAddress(InetAddress.getLoopbackAddress());
assertNotNull(nif);
}
@Test
public void givenIndex_whenReturnsNetworkInterface_thenCorrect() throws SocketException, UnknownHostException {
NetworkInterface nif = NetworkInterface.getByIndex(0);
assertNotNull(nif);
}
@Test
public void givenInterface_whenReturnsInetAddresses_thenCorrect() throws SocketException, UnknownHostException {
NetworkInterface nif = NetworkInterface.getByName("lo");
Enumeration<InetAddress> addressEnum = nif.getInetAddresses();
InetAddress address = addressEnum.nextElement();
assertEquals("127.0.0.1", address.getHostAddress());
}
@Test
public void givenInterface_whenReturnsInterfaceAddresses_thenCorrect() throws SocketException, UnknownHostException {
NetworkInterface nif = NetworkInterface.getByName("lo");
List<InterfaceAddress> addressEnum = nif.getInterfaceAddresses();
InterfaceAddress address = addressEnum.get(0);
InetAddress localAddress = address.getAddress();
InetAddress broadCastAddress = address.getBroadcast();
assertEquals("127.0.0.1", localAddress.getHostAddress());
assertEquals("127.255.255.255", broadCastAddress.getHostAddress());
}
@Test
public void givenInterface_whenChecksIfLoopback_thenCorrect() throws SocketException, UnknownHostException {
NetworkInterface nif = NetworkInterface.getByName("lo");
assertTrue(nif.isLoopback());
}
@Test
public void givenInterface_whenChecksIfUp_thenCorrect() throws SocketException, UnknownHostException {
NetworkInterface nif = NetworkInterface.getByName("lo");
assertTrue(nif.isUp());
}
@Test
public void givenInterface_whenChecksIfPointToPoint_thenCorrect() throws SocketException, UnknownHostException {
NetworkInterface nif = NetworkInterface.getByName("lo");
assertFalse(nif.isPointToPoint());
}
@Test
public void givenInterface_whenChecksIfVirtual_thenCorrect() throws SocketException, UnknownHostException {
NetworkInterface nif = NetworkInterface.getByName("lo");
assertFalse(nif.isVirtual());
}
@Test
public void givenInterface_whenChecksMulticastSupport_thenCorrect() throws SocketException, UnknownHostException {
NetworkInterface nif = NetworkInterface.getByName("lo");
assertTrue(nif.supportsMulticast());
}
@Test
public void givenInterface_whenGetsMacAddress_thenCorrect() throws SocketException, UnknownHostException {
NetworkInterface nif = NetworkInterface.getByName("lo");
byte[] bytes = nif.getHardwareAddress();
assertNotNull(bytes);
}
@Test
public void givenInterface_whenGetsMTU_thenCorrect() throws SocketException, UnknownHostException {
NetworkInterface nif = NetworkInterface.getByName("net0");
int mtu = nif.getMTU();
assertEquals(1500, mtu);
}
}

38
core-java-modules/core-java-networking/src/test/java/com/baeldung/networking/udp/UDPLiveTest.java Normal file
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package com.baeldung.networking.udp;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import java.io.IOException;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
public class UDPLiveTest {
private EchoClient client;
@Before
public void setup() throws IOException {
new EchoServer().start();
client = new EchoClient();
}
@Test
public void whenCanSendAndReceivePacket_thenCorrect1() {
String echo = client.sendEcho("hello server");
assertEquals("hello server", echo);
echo = client.sendEcho("server is working");
assertFalse(echo.equals("hello server"));
}
@After
public void tearDown() {
stopEchoServer();
client.close();
}
private void stopEchoServer() {
client.sendEcho("end");
}
}

39
core-java-modules/core-java-networking/src/test/java/com/baeldung/networking/udp/broadcast/BroadcastLiveTest.java Normal file
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package com.baeldung.networking.udp.broadcast;
import org.junit.After;
import org.junit.Test;
import java.io.IOException;
import static org.junit.Assert.assertEquals;
public class BroadcastLiveTest {
private BroadcastingClient client;
@Test
public void whenBroadcasting_thenDiscoverExpectedServers() throws Exception {
int expectedServers = 4;
initializeForExpectedServers(expectedServers);
int serversDiscovered = client.discoverServers("hello server");
assertEquals(expectedServers, serversDiscovered);
}
private void initializeForExpectedServers(int expectedServers) throws Exception {
for (int i = 0; i < expectedServers; i++) {
new BroadcastingEchoServer().start();
}
client = new BroadcastingClient(expectedServers);
}
@After
public void tearDown() throws IOException {
stopEchoServer();
client.close();
}
private void stopEchoServer() throws IOException {
client.discoverServers("end");
}
}

39
core-java-modules/core-java-networking/src/test/java/com/baeldung/networking/udp/multicast/MulticastLiveTest.java Normal file
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package com.baeldung.networking.udp.multicast;
import org.junit.After;
import org.junit.Test;
import java.io.IOException;
import static org.junit.Assert.assertEquals;
public class MulticastLiveTest {
private MulticastingClient client;
@Test
public void whenBroadcasting_thenDiscoverExpectedServers() throws Exception {
int expectedServers = 4;
initializeForExpectedServers(expectedServers);
int serversDiscovered = client.discoverServers("hello server");
assertEquals(expectedServers, serversDiscovered);
}
private void initializeForExpectedServers(int expectedServers) throws Exception {
for (int i = 0; i < expectedServers; i++) {
new MulticastEchoServer().start();
}
client = new MulticastingClient(expectedServers);
}
@After
public void tearDown() throws IOException {
stopEchoServer();
client.close();
}
private void stopEchoServer() throws IOException {
client.discoverServers("end");
}
}

65
core-java-modules/core-java-networking/src/test/java/com/baeldung/networking/uriurl/URIDemoLiveTest.java Normal file
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package com.baeldung.networking.uriurl;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.URL;
import java.net.URLConnection;
import org.junit.BeforeClass;
import org.junit.FixMethodOrder;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.baeldung.networking.uriurl.URLDemo;
@FixMethodOrder
public class URIDemoLiveTest {
private final Logger log = LoggerFactory.getLogger(URIDemoLiveTest.class);
String URISTRING = "https://wordpress.org:443/support/topic/page-jumps-within-wordpress/?replies=3#post-2278484";
// parsed locator
static String URISCHEME = "https";
String URISCHEMESPECIFIC;
static String URIHOST = "wordpress.org";
static String URIAUTHORITY = "wordpress.org:443";
static String URIPATH = "/support/topic/page-jumps-within-wordpress/";
int URIPORT = 443;
static int URIDEFAULTPORT = 443;
static String URIQUERY = "replies=3";
static String URIFRAGMENT = "post-2278484";
static String URICOMPOUND = URISCHEME + "://" + URIHOST + ":" + URIDEFAULTPORT + URIPATH + "?" + URIQUERY + "#" + URIFRAGMENT;
static URI uri;
URL url;
BufferedReader in = null;
String URIContent = "";
@BeforeClass
public static void givenEmplyURL_whenInitializeURL_thenSuccess() throws URISyntaxException {
uri = new URI(URICOMPOUND);
}
// check parsed URL
@Test
public void givenURI_whenURIIsParsed_thenSuccess() {
assertNotNull("URI is null", uri);
assertEquals("URI string is not equal", uri.toString(), URISTRING);
assertEquals("Scheme is not equal", uri.getScheme(), URISCHEME);
assertEquals("Authority is not equal", uri.getAuthority(), URIAUTHORITY);
assertEquals("Host string is not equal", uri.getHost(), URIHOST);
assertEquals("Path string is not equal", uri.getPath(), URIPATH);
assertEquals("Port number is not equal", uri.getPort(), URIPORT);
assertEquals("Query string is not equal", uri.getQuery(), URIQUERY);
assertEquals("Fragment string is not equal", uri.getFragment(), URIFRAGMENT);
}
}

75
core-java-modules/core-java-networking/src/test/java/com/baeldung/networking/uriurl/URIvsURLUnitTest.java Normal file
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package com.baeldung.networking.uriurl;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.URL;
import org.apache.commons.io.IOUtils;
import static org.junit.Assert.*;
import org.junit.Test;
public class URIvsURLUnitTest {
@Test
public void whenCreatingURIs_thenSameInfo() throws URISyntaxException {
URI firstURI = new URI("somescheme://theuser:thepassword@someauthority:80/some/path?thequery#somefragment");
URI secondURI = new URI("somescheme", "theuser:thepassword", "someuthority", 80, "/some/path", "thequery", "somefragment");
assertEquals(firstURI.getScheme(), secondURI.getScheme());
assertEquals(firstURI.getPath(), secondURI.getPath());
}
@Test
public void whenCreatingURLs_thenSameInfo() throws MalformedURLException {
URL firstURL = new URL("http://theuser:thepassword@somehost:80/path/to/file?thequery#somefragment");
URL secondURL = new URL("http", "somehost", 80, "/path/to/file");
assertEquals(firstURL.getHost(), secondURL.getHost());
assertEquals(firstURL.getPath(), secondURL.getPath());
}
@Test
public void whenCreatingURI_thenCorrect() {
URI uri = URI.create("urn:isbn:1234567890");
assertNotNull(uri);
}
@Test(expected = MalformedURLException.class)
public void whenCreatingURLs_thenException() throws MalformedURLException {
URL theURL = new URL("otherprotocol://somehost/path/to/file");
assertNotNull(theURL);
}
@Test
public void givenObjects_whenConverting_thenCorrect() throws MalformedURLException, URISyntaxException {
String aURIString = "http://somehost:80/path?thequery";
URI uri = new URI(aURIString);
URL url = new URL(aURIString);
URL toURL = uri.toURL();
URI toURI = url.toURI();
assertNotNull(url);
assertNotNull(uri);
assertEquals(toURL.toString(), toURI.toString());
}
@Test(expected = MalformedURLException.class)
public void givenURI_whenConvertingToURL_thenException() throws MalformedURLException, URISyntaxException {
URI uri = new URI("somescheme://someauthority/path?thequery");
URL url = uri.toURL();
assertNotNull(url);
}
@Test
public void givenURL_whenGettingContents_thenCorrect() throws MalformedURLException, IOException {
URL url = new URL("http://courses.baeldung.com");
String contents = IOUtils.toString(url.openStream());
}
}

106
core-java-modules/core-java-networking/src/test/java/com/baeldung/networking/uriurl/URLDemoLiveTest.java Normal file
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package com.baeldung.networking.uriurl;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import org.junit.BeforeClass;
import org.junit.FixMethodOrder;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.baeldung.networking.uriurl.URLDemo;
@FixMethodOrder
public class URLDemoLiveTest {
private final Logger log = LoggerFactory.getLogger(URLDemoLiveTest.class);
static String URLSTRING = "https://wordpress.org:443/support/topic/page-jumps-within-wordpress/?replies=3#post-2278484";
// parsed locator
static String URLPROTOCOL = "https";
String URLAUTHORITY = "wordpress.org:443";
static String URLHOST = "wordpress.org";
static String URLPATH = "/support/topic/page-jumps-within-wordpress/";
String URLFILENAME = "/support/topic/page-jumps-within-wordpress/?replies=3";
int URLPORT = 443;
static int URLDEFAULTPORT = 443;
static String URLQUERY = "replies=3";
static String URLREFERENCE = "post-2278484";
static String URLCOMPOUND = URLPROTOCOL + "://" + URLHOST + ":" + URLDEFAULTPORT + URLPATH + "?" + URLQUERY + "#" + URLREFERENCE;
static URL url;
URLConnection urlConnection = null;
HttpURLConnection connection = null;
BufferedReader in = null;
String urlContent = "";
@BeforeClass
public static void givenEmplyURL_whenInitializeURL_thenSuccess() throws MalformedURLException {
url = new URL(URLCOMPOUND);
}
// check parsed URL
@Test
public void givenURL_whenURLIsParsed_thenSuccess() {
assertNotNull("URL is null", url);
assertEquals("URL string is not equal", url.toString(), URLSTRING);
assertEquals("Protocol is not equal", url.getProtocol(), URLPROTOCOL);
assertEquals("Authority is not equal", url.getAuthority(), URLAUTHORITY);
assertEquals("Host string is not equal", url.getHost(), URLHOST);
assertEquals("Path string is not equal", url.getPath(), URLPATH);
assertEquals("File string is not equal", url.getFile(), URLFILENAME);
assertEquals("Port number is not equal", url.getPort(), URLPORT);
assertEquals("Default port number is not equal", url.getDefaultPort(), URLDEFAULTPORT);
assertEquals("Query string is not equal", url.getQuery(), URLQUERY);
assertEquals("Reference string is not equal", url.getRef(), URLREFERENCE);
}
// Obtain the content from location
@Test
public void givenURL_whenOpenConnectionAndContentIsNotEmpty_thenSuccess() throws IOException {
try {
urlConnection = url.openConnection();
} catch (IOException ex) {
urlConnection = null;
ex.printStackTrace();
}
assertNotNull("URL Connection is null", urlConnection);
connection = null;
assertTrue("URLConnection is not HttpURLConnection", urlConnection instanceof HttpURLConnection);
if (urlConnection instanceof HttpURLConnection) {
connection = (HttpURLConnection) urlConnection;
}
assertNotNull("Connection is null", connection);
log.info(connection.getResponseCode() + " " + connection.getResponseMessage());
try {
in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
} catch (IOException ex) {
in = null;
ex.printStackTrace();
}
assertNotNull("Input stream failed", in);
String current;
try {
while ((current = in.readLine()) != null) {
urlContent += current;
}
} catch (IOException ex) {
urlContent = null;
ex.printStackTrace();
}
assertNotNull("Content is null", urlContent);
assertTrue("Content is empty", urlContent.length() > 0);
}
}

104
core-java-modules/core-java-networking/src/test/java/com/baeldung/networking/url/UrlUnitTest.java Normal file
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package com.baeldung.networking.url;
import static org.junit.Assert.assertEquals;
import java.net.MalformedURLException;
import java.net.URL;
import org.junit.Test;
public class UrlUnitTest {
@Test
public void givenUrl_whenCanIdentifyProtocol_thenCorrect() throws MalformedURLException {
final URL url = new URL("http://baeldung.com");
assertEquals("http", url.getProtocol());
}
@Test
public void givenUrl_whenCanGetHost_thenCorrect() throws MalformedURLException {
final URL url = new URL("http://baeldung.com");
assertEquals("baeldung.com", url.getHost());
}
@Test
public void givenUrl_whenCanGetFileName_thenCorrect2() throws MalformedURLException {
final URL url = new URL("http://baeldung.com/articles?topic=java&version=8");
assertEquals("/articles?topic=java&version=8", url.getFile());
}
@Test
public void givenUrl_whenCanGetFileName_thenCorrect1() throws MalformedURLException {
final URL url = new URL("http://baeldung.com/guidelines.txt");
assertEquals("/guidelines.txt", url.getFile());
}
@Test
public void givenUrl_whenCanGetPathParams_thenCorrect() throws MalformedURLException {
final URL url = new URL("http://baeldung.com/articles?topic=java&version=8");
assertEquals("/articles", url.getPath());
}
@Test
public void givenUrl_whenCanGetQueryParams_thenCorrect() throws MalformedURLException {
final URL url = new URL("http://baeldung.com/articles?topic=java");
assertEquals("topic=java", url.getQuery());
}
@Test
public void givenUrl_whenGetsDefaultPort_thenCorrect() throws MalformedURLException {
final URL url = new URL("http://baeldung.com");
assertEquals(-1, url.getPort());
assertEquals(80, url.getDefaultPort());
}
@Test
public void givenUrl_whenGetsPort_thenCorrect() throws MalformedURLException {
final URL url = new URL("http://baeldung.com:8090");
assertEquals(8090, url.getPort());
assertEquals(80, url.getDefaultPort());
}
@Test
public void givenBaseUrl_whenCreatesRelativeUrl_thenCorrect() throws MalformedURLException {
final URL baseUrl = new URL("http://baeldung.com");
final URL relativeUrl = new URL(baseUrl, "a-guide-to-java-sockets");
assertEquals("http://baeldung.com/a-guide-to-java-sockets", relativeUrl.toString());
}
@Test
public void givenAbsoluteUrl_whenIgnoresBaseUrl_thenCorrect() throws MalformedURLException {
final URL baseUrl = new URL("http://baeldung.com");
final URL relativeUrl = new URL(baseUrl, "http://baeldung.com/a-guide-to-java-sockets");
assertEquals("http://baeldung.com/a-guide-to-java-sockets", relativeUrl.toString());
}
@Test
public void givenUrlComponents_whenConstructsCompleteUrl_thenCorrect() throws MalformedURLException {
final String protocol = "http";
final String host = "baeldung.com";
final String file = "/guidelines.txt";
final URL url = new URL(protocol, host, file);
assertEquals("http://baeldung.com/guidelines.txt", url.toString());
}
@Test
public void givenUrlComponents_whenConstructsCompleteUrl_thenCorrect2() throws MalformedURLException {
final String protocol = "http";
final String host = "baeldung.com";
final String file = "/articles?topic=java&version=8";
final URL url = new URL(protocol, host, file);
assertEquals("http://baeldung.com/articles?topic=java&version=8", url.toString());
}
@Test
public void givenUrlComponentsWithPort_whenConstructsCompleteUrl_thenCorrect() throws MalformedURLException {
final String protocol = "http";
final String host = "baeldung.com";
final int port = 9000;
final String file = "/guidelines.txt";
final URL url = new URL(protocol, host, port, file);
assertEquals("http://baeldung.com:9000/guidelines.txt", url.toString());
}
}

56
core-java-modules/core-java-networking/src/test/java/com/baeldung/socket/EchoIntegrationTest.java Normal file
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package com.baeldung.socket;
import static org.junit.Assert.assertEquals;
import java.io.IOException;
import java.net.ServerSocket;
import java.util.concurrent.Executors;
import org.junit.After;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
public class EchoIntegrationTest {
private static int port;
@BeforeClass
public static void start() throws InterruptedException, IOException {
// Take an available port
ServerSocket s = new ServerSocket(0);
port = s.getLocalPort();
s.close();
Executors.newSingleThreadExecutor()
.submit(() -> new EchoServer().start(port));
Thread.sleep(500);
}
private EchoClient client = new EchoClient();
@Before
public void init() {
client.startConnection("127.0.0.1", port);
}
@After
public void tearDown() {
client.stopConnection();
}
//
@Test
public void givenClient_whenServerEchosMessage_thenCorrect() {
String resp1 = client.sendMessage("hello");
String resp2 = client.sendMessage("world");
String resp3 = client.sendMessage("!");
String resp4 = client.sendMessage(".");
assertEquals("hello", resp1);
assertEquals("world", resp2);
assertEquals("!", resp3);
assertEquals("good bye", resp4);
}
}

50
core-java-modules/core-java-networking/src/test/java/com/baeldung/socket/GreetServerIntegrationTest.java Normal file
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package com.baeldung.socket;
import static org.junit.Assert.assertEquals;
import java.io.IOException;
import java.net.ServerSocket;
import java.util.concurrent.Executors;
import org.junit.After;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
public class GreetServerIntegrationTest {
private GreetClient client;
private static int port;
@BeforeClass
public static void start() throws InterruptedException, IOException {
// Take an available port
ServerSocket s = new ServerSocket(0);
port = s.getLocalPort();
s.close();
Executors.newSingleThreadExecutor()
.submit(() -> new GreetServer().start(port));
Thread.sleep(500);
}
@Before
public void init() {
client = new GreetClient();
client.startConnection("127.0.0.1", port);
}
@Test
public void givenGreetingClient_whenServerRespondsWhenStarted_thenCorrect() {
String response = client.sendMessage("hello server");
assertEquals("hello client", response);
}
@After
public void finish() {
client.stopConnection();
}
}

68
core-java-modules/core-java-networking/src/test/java/com/baeldung/socket/SocketEchoMultiIntegrationTest.java Normal file
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package com.baeldung.socket;
import org.junit.BeforeClass;
import org.junit.Ignore;
import org.junit.Test;
import java.io.IOException;
import java.net.ServerSocket;
import java.util.concurrent.Executors;
import static org.junit.Assert.assertEquals;
public class SocketEchoMultiIntegrationTest {
private static int port;
@BeforeClass
public static void start() throws InterruptedException, IOException {
// Take an available port
ServerSocket s = new ServerSocket(0);
port = s.getLocalPort();
s.close();
Executors.newSingleThreadExecutor().submit(() -> new EchoMultiServer().start(port));
Thread.sleep(500);
}
@Test
public void givenClient1_whenServerResponds_thenCorrect() {
EchoClient client = new EchoClient();
client.startConnection("127.0.0.1", port);
String msg1 = client.sendMessage("hello");
String msg2 = client.sendMessage("world");
String terminate = client.sendMessage(".");
assertEquals(msg1, "hello");
assertEquals(msg2, "world");
assertEquals(terminate, "bye");
client.stopConnection();
}
@Test
public void givenClient2_whenServerResponds_thenCorrect() {
EchoClient client = new EchoClient();
client.startConnection("127.0.0.1", port);
String msg1 = client.sendMessage("hello");
String msg2 = client.sendMessage("world");
String terminate = client.sendMessage(".");
assertEquals(msg1, "hello");
assertEquals(msg2, "world");
assertEquals(terminate, "bye");
client.stopConnection();
}
@Test
public void givenClient3_whenServerResponds_thenCorrect() {
EchoClient client = new EchoClient();
client.startConnection("127.0.0.1", port);
String msg1 = client.sendMessage("hello");
String msg2 = client.sendMessage("world");
String terminate = client.sendMessage(".");
assertEquals(msg1, "hello");
assertEquals(msg2, "world");
assertEquals(terminate, "bye");
client.stopConnection();
}
}

37
core-java-modules/core-java-networking/src/test/java/com/baeldung/socket/read/SocketReadAllDataLiveTest.java Normal file
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package com.baeldung.socket.read;
import java.util.concurrent.TimeUnit;
import org.junit.jupiter.api.Test;
public class SocketReadAllDataLiveTest {
@Test
public void givenServerAndClient_whenClientSendsAndServerReceivesData_thenCorrect() {
//Run server in new thread
Runnable runnable1 = () -> { runServer(); };
Thread thread1 = new Thread(runnable1);
thread1.start();
//Wait for 10 seconds
try {
TimeUnit.SECONDS.sleep(10);
} catch (InterruptedException e) {
e.printStackTrace();
}
//Run client in a new thread
Runnable runnable2 = () -> { runClient(); };
Thread thread2 = new Thread(runnable2);
thread2.start();
}
public static void runServer() {
//Run Server
Server server = new Server();
server.runServer(5555);
}
public static void runClient() {
//Run Client
Client client = new Client();
client.runClient("127.0.0.1", 5555);
}
}

13
core-java-modules/core-java-networking/src/test/resources/.gitignore vendored Normal file
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*.class
#folders#
/target
/neoDb*
/data
/src/main/webapp/WEB-INF/classes
*/META-INF/*
# Packaged files #
*.jar
*.war
*.ear