Merge pull request #24 from ideoplex/work

Addition of unit tests using jersey-client 1.x

Author: ideoplex

README.md

@@ -1,14 +1,16 @@
 jersey-gson
 ===========
 
-Sample java web application with jersey and gson that displays a list of users in a [Datatables](http://datatables.net/) table.
+Sample java web application with jersey and custom gson serialiation/deserialization
+to displays a list of users in a [Datatables](http://datatables.net/) table.
 The application retrieves the users via Datatables ajax.
 User edits are submitted to the server and successful response is applied to the local data set in the browser.
 Long cell text will be truncated with an ellipsis.
 
 Users can be added via a [Bootstrap](http://getbootstrap.com/) Modal dialog. Users are kept in memory and are not persisted.
 
-The application tests demonstrate the use of [Selenium](http://www.seleniumhq.org/) automation for the addition of users.
+The application tests demonstrate the use of [Selenium](http://www.seleniumhq.org/) automation for the addition of users
+and the use of jersey-client with gson.
 
 The application can be run from the command line via:
 
@@ -17,7 +19,7 @@ mvn jetty:run
 ```
 
 [Maven](https://maven.apache.org/) is configured to autostart/autostop jetty
-for the selenium test. Please halt any "mvn jetty:run" invocations before
+for tests. Please halt any "mvn jetty:run" invocations before
 running the tests via:
 
 ```
@@ -32,6 +34,7 @@ mvn test -Dbrowser=chrome
 
 Read about the project (from most recent to oldest):
 
+1. [Jersey Client with Gson](https://ideoplex.com/2015/11/01/jersey-client-with-gson/)
 1. [jersey-gson Content-Type Woes](https://ideoplex.com/2015/10/31/jersey-gson-content-type-woes/)
 1. [Autostart Jetty in Maven](https://ideoplex.com/2015/10/25/autostart-jetty-in-maven/)
 1. [DataTables, Bootstrap and Text Overflow](https://ideoplex.com/2015/08/16/datatables-bootstrap-and-text-overflow/)

pom.xml

@@ -122,9 +122,16 @@
           <version>${selenium.version}</version>
           <scope>test</scope>
         </dependency>
+        <dependency>
+          <groupId>com.sun.jersey</groupId>
+          <artifactId>jersey-client</artifactId>
+          <version>${jersey.client.version}</version>
+          <scope>test</scope>
+        </dependency>
     </dependencies>
     <properties>
         <jersey.version>2.12</jersey.version>
+        <jersey.client.version>1.18</jersey.client.version>
         <jetty.version>9.3.0.M2</jetty.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <testng.version>6.9.4</testng.version>

src/main/java/com/ideoplex/tutorial/GsonReader.java

@@ -28,12 +28,16 @@
 
 
 import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
 
 
 @Provider
 @Consumes(MediaType.APPLICATION_JSON)
 @Singleton
 public class GsonReader<T> implements MessageBodyReader<T> {
+    protected static Gson gson = new GsonBuilder()
+        .registerTypeAdapter(UserMap.class,new UserMapUnmarshall())
+        .create();
 
     @Override
     public boolean isReadable(Class<?> type, Type genericType,
@@ -46,8 +50,7 @@ public T readFrom(Class<T> type, Type genericType,
             Annotation[] antns, MediaType mt,
             MultivaluedMap<String, String> mm, InputStream in)
             throws IOException, WebApplicationException {
-        Gson g = new Gson();
-        return g.fromJson(_convertStreamToString(in), type);
+        return gson.fromJson(_convertStreamToString(in), type);
     }
 
     private String _convertStreamToString(InputStream inputStream)

src/main/java/com/ideoplex/tutorial/MyResource.java

@@ -1,8 +1,10 @@
 package com.ideoplex.tutorial;
 
+import javax.ws.rs.DELETE;
 import javax.ws.rs.GET;
 import javax.ws.rs.POST;
 import javax.ws.rs.Path;
+import javax.ws.rs.PathParam;
 import javax.ws.rs.QueryParam;
 import javax.ws.rs.Consumes;
 import javax.ws.rs.Produces;
@@ -61,6 +63,32 @@ public User getUserTemplate() {
         return user;
     }
 
+    @GET
+    @Path("user/get/{email}")
+    @Produces(MediaType.APPLICATION_JSON)
+    public User getUser(@PathParam("email") String email) {
+        User  rVal   = users.get(email);
+        if ( rVal == null ) {
+            throw new WebApplicationException(Response
+                                              .status(Response.Status.NOT_FOUND)
+                                              .build());
+        }
+        return rVal;
+    }
+
+    @DELETE
+    @Path("user/delete/{email}")
+    @Produces(MediaType.APPLICATION_JSON)
+    public User deleteUser(@PathParam("email") String email) {
+        User  rVal   = users.remove(email);
+        if ( rVal == null ) {
+            throw new WebApplicationException(Response
+                                              .status(Response.Status.NOT_FOUND)
+                                              .build());
+        }
+        return rVal;
+    }
+
     @POST
     @Path("user/post")
     @Consumes(MediaType.APPLICATION_JSON)

src/main/java/com/ideoplex/tutorial/UserMapUnmarshall.java

@@ -0,0 +1,41 @@
+package com.ideoplex.tutorial;
+
+
+import java.lang.reflect.Type;
+
+import java.util.Collection;
+import java.util.Iterator;
+import java.util.Map;
+
+import com.google.gson.Gson;
+import com.google.gson.JsonArray;
+import com.google.gson.JsonObject;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonDeserializer;
+import com.google.gson.JsonDeserializationContext;
+
+
+public class UserMapUnmarshall implements JsonDeserializer<UserMap> {
+    private static Gson gson = new Gson();
+
+    @Override
+    public UserMap deserialize(JsonElement mapFormat, Type typeOfSrc, JsonDeserializationContext context) {
+        Iterator<JsonElement>  iterate = mapFormat.getAsJsonObject()
+            .get("data")
+            .getAsJsonArray()
+            .iterator();
+
+        UserMap  users = new UserMap();
+        while( iterate.hasNext() ) {
+            JsonObject user     = ((JsonElement) iterate.next()).getAsJsonObject();
+            String     email    = user.get("email").getAsString();
+            User       add      = new User();
+            add.setEmail( email );
+            add.setSurname( user.get("surname").getAsString() );
+            add.setGivenName( user.get("givenName").getAsString() );
+            users.put( email, add );
+        }
+
+        return users;
+    }
+}

src/test/java/com/ideoplex/tutorial/BrowserTest.java

@@ -76,7 +76,7 @@ public void addUsers( WebDriver driver )
     }
 
     @Parameters({"browser","baseurl","waitajax"})
-    @Test(invocationCount = 2, groups="browser")
+    @Test(invocationCount = 2, dependsOnGroups="client", groups="browser")
     public void userCreate( String browser, String baseurl, String waitajax )
     {
         WebDriver driver = "chrome".equalsIgnoreCase(browser)

src/test/java/com/ideoplex/tutorial/ClientTest.java

@@ -0,0 +1,90 @@
+package com.ideoplex.tutorial;
+
+
+import javax.ws.rs.core.MediaType;
+
+import com.sun.jersey.api.client.Client;
+import com.sun.jersey.api.client.ClientResponse;
+import com.sun.jersey.api.client.WebResource;
+import com.sun.jersey.api.client.config.ClientConfig;
+import com.sun.jersey.api.client.config.DefaultClientConfig;
+
+import org.testng.Assert;
+import org.testng.annotations.Parameters;
+import org.testng.annotations.Test;
+
+
+public class ClientTest {
+
+    public static final String className = ClientTest.class.getName();
+
+    @Parameters({"baseurl"})
+    @Test(groups="client")
+    public void userCreate( String baseurl )
+    {
+        final User      sample;
+        final String    email;
+        final String    url;
+
+        Client          client;
+        WebResource     resource;
+        ClientResponse  response;
+
+        {
+            email    = "test@" + className;
+            sample   = new User();
+            sample.setEmail(email);
+            sample.setGivenName("John Q.");
+            sample.setSurname("Public");
+
+            url      = baseurl + "webapi/myresource/user";
+
+            ClientConfig config = new DefaultClientConfig();
+            config.getClasses().add(GsonReader.class);
+            config.getClasses().add(GsonWriter.class);
+
+            client   = Client.create(config);
+        }
+
+        {
+            System.out.println("Verify that " + email + " is not available yet");
+            resource  = client.resource( url + "/get/" + email );
+            response  = resource.accept(MediaType.APPLICATION_JSON)
+                .get(ClientResponse.class);
+            assert( response.getStatus() == 404 );
+        }
+
+        {
+            System.out.println("Verify that user/post on " + email + " succeeds");
+            resource  = client.resource( url + "/post" );
+            response  = resource.accept(MediaType.APPLICATION_JSON)
+                .type(MediaType.APPLICATION_JSON)
+                .post(ClientResponse.class,sample);
+            assert( response.getStatus() == 200 );
+            User  rVal  = response.getEntity(User.class);
+            assert( email.equals(rVal.getEmail()) );
+        }
+
+        {
+            System.out.println("Verify that " + email + " is in the userMap");
+            resource  = client.resource( url + "/map" );
+            response  = resource.accept(MediaType.APPLICATION_JSON)
+                .get(ClientResponse.class);
+            assert( response.getStatus() == 200 );
+            UserMap  rVal  = response.getEntity(UserMap.class);
+            assert( rVal != null );
+            User     look   = rVal.get(email);
+            assert( look != null );
+        }
+
+        {
+            System.out.println("Verify that delete on " + email + " succeeds");
+            resource  = client.resource( url + "/delete/" + email );
+            response  = resource.accept(MediaType.APPLICATION_JSON)
+                .delete(ClientResponse.class);
+            assert( response.getStatus() == 200 );
+            User  rVal  = response.getEntity(User.class);
+            assert( email.equals(rVal.getEmail()) );
+        }
+    }
+}