add testing for AlgorithmsPage

frontend/src/main/java/de/uni_potsdam/hpi/metanome/frontend/client/algorithms/AlgorithmsPage.java

@@ -199,10 +199,8 @@ public void onSuccess(Void result) {
         }
       }
     });
-
   }
 
-
   /*
    * (non-Javadoc)
    * 

frontend/src/test/java/de/uni_potsdam/hpi/metanome/frontend/client/algorithms/GwtTestAlgorithmsPage.java

@@ -0,0 +1,110 @@
+/*
+ * Copyright 2014 by the Metanome project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package de.uni_potsdam.hpi.metanome.frontend.client.algorithms;
+
+import java.util.Iterator;
+import java.util.LinkedList;
+import java.util.List;
+
+import org.junit.Test;
+
+import com.google.gwt.junit.client.GWTTestCase;
+import com.google.gwt.user.client.rpc.AsyncCallback;
+import com.google.gwt.user.client.ui.FlexTable;
+import com.google.gwt.user.client.ui.Widget;
+
+import de.uni_potsdam.hpi.metanome.frontend.client.BasePage;
+import de.uni_potsdam.hpi.metanome.frontend.client.TabWrapper;
+import de.uni_potsdam.hpi.metanome.results_db.Algorithm;
+
+public class GwtTestAlgorithmsPage extends GWTTestCase {
+
+  /**
+   * Test method for {@link de.uni_potsdam.hpi.metanome.frontend.client.algorithms.AlgorithmsPage}
+   * <p/>
+   * When a new AlgorithmsPage is created, an edit form should be present, and service as well as
+   * parent set.
+   */
+  @Test
+  public void testSetup() {
+    boolean editFormPresent = false;
+    BasePage basePage = new BasePage();
+
+    // Create the page
+    AlgorithmsPage algorithmPage = new AlgorithmsPage(basePage);
+
+    // Check for edit form
+    for (Iterator<Widget> i = algorithmPage.iterator(); i.hasNext();) {
+      if (i.next() instanceof AlgorithmEditForm) {
+        editFormPresent = true;
+      }
+    }
+    assertTrue(editFormPresent);
+
+    assertNotNull(algorithmPage.finderService);
+    assertEquals(basePage, algorithmPage.basePage);
+  }
+
+  /**
+   * Test method for
+   * {@link de.uni_potsdam.hpi.metanome.frontend.client.algorithms.AlgorithmsPage#getCallback(FlexTable)}
+   * <p/>
+   * After failure is called on the constructed callback, the tab should be in error.
+   */
+  @Test
+  public void testCallbackFailure() {
+    AlgorithmsPage algorithmsPage = new AlgorithmsPage(new BasePage());
+    TabWrapper tab = new TabWrapper();
+    algorithmsPage.setErrorReceiver(tab);
+
+    // Construct and execute failure on the callback
+    AsyncCallback<List<Algorithm>> callback = algorithmsPage.getCallback(new FlexTable());
+    callback.onFailure(new Throwable());
+
+    assertTrue(tab.isInError());
+  }
+
+  /**
+   * Test method for
+   * {@link de.uni_potsdam.hpi.metanome.frontend.client.algorithms.AlgorithmsPage#getCallback(FlexTable)}
+   * <p/>
+   * After success is called on the constructed callback, the UI element given as argument should
+   * contain all the elements of the result.
+   */
+  @Test
+  public void testCallbackSuccess() {
+    AlgorithmsPage algorithmsPage = new AlgorithmsPage(new BasePage());
+    FlexTable list = new FlexTable();
+
+    // Create a list of algorithms as result
+    LinkedList<Algorithm> result = new LinkedList<Algorithm>();
+    // String fileName = "fileName", name = "name", author = "author";
+    Algorithm a1 = new Algorithm("fileName");
+    result.add(a1);
+
+    AsyncCallback<List<Algorithm>> callback = algorithmsPage.getCallback(list);
+    callback.onSuccess(result);
+
+    assertEquals(result.size(), list.getRowCount());
+  }
+
+  @Override
+  public String getModuleName() {
+    return "de.uni_potsdam.hpi.metanome.frontend.MetanomeTest";
+  }
+
+}