3 files changed, 284 insertions, 0 deletions
diff --git a/app/src/androidTest/java/org/rssin/neurons/FeedSorterTest.java b/app/src/androidTest/java/org/rssin/neurons/FeedSorterTest.java
new file mode 100755
index 0000000..a6e3581
--- /dev/null
+++ b/app/src/androidTest/java/org/rssin/neurons/FeedSorterTest.java
@@ -0,0 +1,128 @@
+package org.rssin.neurons;
+
+import android.util.Log;
+
+import junit.framework.Assert;
+import junit.framework.TestCase;
+
+import org.rssin.rss.FeedItem;
+
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.LinkedList;
+import java.util.List;
+
+public class FeedSorterTest extends TestCase {
+
+    public void testFeedback() throws Exception {
+        Log.d("FeedSorterTest", "Dit is een test");
+        Assert.assertTrue(true);
+    }
+
+    public void testSortItemsByCategory() throws Exception {
+        List<String> gameList = new ArrayList<>();
+        gameList.add("Games");
+        List<String> sportList = new ArrayList<>();
+        sportList.add("Sport");
+
+        FeedItem[] likedItems = new FeedItem[]
+                {
+                        new FeedItem("", new Date(), "TITEL", "DESCRIPTION", "", "Randy", gameList, "", "", ""),
+                };
+
+        FeedItem[] dislikedItems = new FeedItem[]
+                {
+                        new FeedItem("", new Date(), "TITEL", "DESCRIPTION", "", "Randy", sportList, "", "", ""),
+                };
+
+        FeedSorter s = new FeedSorter();
+
+        //I like games & I hate sports
+        trainNetwork(likedItems, dislikedItems, s);
+
+        FeedItem sportsItem = new FeedItem("", new Date(2014, 1, 1, 1, 2, 1), "SPORT ARTICLE", "DESCRIPTION", "", "Randy", sportList, "", "", "");
+        FeedItem gamesItem = new FeedItem("", new Date(2014, 1, 1, 1, 1, 1), "GAME ARTICLE", "DESCRIPTION", "", "Randy", gameList, "", "", "");
+
+        testSortingOrder(s, sportsItem, gamesItem);
+    }
+
+    public void testSortItemsByTitle() throws Exception {
+        List<String> emptyList = new ArrayList<>();
+
+        FeedItem[] likedItems = new FeedItem[]
+                {
+                        new FeedItem("", new Date(), "Video games are cool", "DESCRIPTION", "", "Randy", emptyList, "", "", ""),
+                        new FeedItem("", new Date(), "The new video game", "DESCRIPTION", "", "Camil", emptyList, "", "", ""),
+                        new FeedItem("", new Date(), "Best games of 2015", "DESCRIPTION", "", "Jos", emptyList, "", "", ""),
+                };
+
+        FeedItem[] dislikedItems = new FeedItem[]
+                {
+                        new FeedItem("", new Date(), "Video of a cat", "DESCRIPTION", "", "Randy", emptyList, "", "", ""),
+                        new FeedItem("", new Date(), "It's raining", "DESCRIPTION", "", "Joep", emptyList, "", "", ""),
+                        new FeedItem("", new Date(), "Shocking video of a cat in the rain.", "DESCRIPTION", "", "Joep", emptyList, "", "", ""),
+                };
+
+        FeedSorter s = new FeedSorter();
+
+        //I like games & I hate sports
+        trainNetwork(likedItems, dislikedItems, s);
+
+        FeedItem dislikedItem = new FeedItem("", new Date(2014, 1, 1, 1, 2, 1), "Another cool video of a cat in the sun.", "DESCRIPTION", "", "Randy", emptyList, "", "", "");
+        FeedItem likedItem = new FeedItem("", new Date(2014, 1, 1, 1, 1, 1), "Coolest retro games", "DESCRIPTION", "", "Jos", emptyList, "", "", "");
+
+        testSortingOrder(s, dislikedItem, likedItem);
+    }
+
+    public void testSortItemsByAuthor() throws Exception {
+        List<String> emptyList = new ArrayList<>();
+
+        FeedItem[] likedItems = new FeedItem[]
+                {
+                        new FeedItem("", new Date(), "Best games of 2015", "DESCRIPTION", "", "Jos", emptyList, "", "", ""),
+                        new FeedItem("", new Date(), "It's raining cats and dogs!", "DESCRIPTION", "", "Jos", emptyList, "", "", ""),
+                };
+
+        FeedItem[] dislikedItems = new FeedItem[]
+                {
+                        new FeedItem("", new Date(), "Video of a cat", "DESCRIPTION", "", "Randy", emptyList, "", "", ""),
+                        new FeedItem("", new Date(), "It's raining", "DESCRIPTION", "", "Joep", emptyList, "", "", ""),
+                        new FeedItem("", new Date(), "Shocking video of a cat in the rain.", "DESCRIPTION", "", "Joep", emptyList, "", "", ""),
+                        new FeedItem("", new Date(), "Video games are cool", "DESCRIPTION", "", "Randy", emptyList, "", "", ""),
+                        new FeedItem("", new Date(), "The new video game", "DESCRIPTION", "", "Camil", emptyList, "", "", ""),
+                };
+
+        FeedSorter s = new FeedSorter();
+
+        //I like games & I hate sports
+        trainNetwork(likedItems, dislikedItems, s);
+
+        FeedItem dislikedItem = new FeedItem("", new Date(2014, 1, 1, 1, 2, 1), "Another cool video of a cat in the sun.", "DESCRIPTION", "", "Randy", emptyList, "", "", "");
+        FeedItem likedItem = new FeedItem("", new Date(2014, 1, 1, 1, 1, 1), "Coolest retro games", "DESCRIPTION", "", "Jos", emptyList, "", "", "");
+
+        testSortingOrder(s, dislikedItem, likedItem);
+    }
+
+    private void testSortingOrder(FeedSorter s, FeedItem dislikedItem, FeedItem likedItem) {
+        List<FeedItem> testItems = new LinkedList<>();
+        testItems.add(dislikedItem);
+        testItems.add(likedItem);
+
+        List<FeedItem> sortedItems = s.sortItems(testItems);
+        Assert.assertEquals(sortedItems.get(0), likedItem);
+        Assert.assertEquals(sortedItems.get(1), dislikedItem);
+    }
+
+    private void trainNetwork(FeedItem[] likedItems, FeedItem[] dislikedItems, FeedSorter s) {
+        for(int i = 0; i < 200; i++) {
+            for (FeedItem item : likedItems) {
+                s.feedback(item, Feedback.Like);
+            }
+
+            for (FeedItem item : dislikedItems) {
+                s.feedback(item, Feedback.Dislike);
+            }
+        }
+    }
+}
+\ No newline at end of file
diff --git a/app/src/androidTest/java/org/rssin/neurons/NeuralNetworkTest.java b/app/src/androidTest/java/org/rssin/neurons/NeuralNetworkTest.java
new file mode 100755
index 0000000..57776f3
--- /dev/null
+++ b/app/src/androidTest/java/org/rssin/neurons/NeuralNetworkTest.java
@@ -0,0 +1,133 @@
+package org.rssin.neurons;
+
+import junit.framework.Assert;
+import junit.framework.TestCase;
+
+public class NeuralNetworkTest extends TestCase {
+
+    public void testAnd() throws Exception {
+        MultiNeuralNetwork nn = new MultiNeuralNetwork(10, 2);
+        nn.addInput();//bias
+        nn.addInput();//inputA
+        nn.addInput();//inputB
+
+        //Simple AND
+        for (int i = 0; i < 300; i++)
+        {
+            PredictionInterface p1 = nn.computeOutput(new double[] {
+                    1,
+                    -1,
+                    -1,
+            });
+            p1.learn(-1);
+
+            PredictionInterface p2 = nn.computeOutput(new double[] {
+                    1,
+                    -1,
+                    1,
+            });
+            p2.learn(-1);
+
+            PredictionInterface p3 = nn.computeOutput(new double[] {
+                    1,
+                    1,
+                    -1,
+            });
+            p3.learn(-1);
+
+            PredictionInterface p4 = nn.computeOutput(new double[] {
+                    1,
+                    1,
+                    1,
+            });
+            p4.learn(1);
+        }
+
+        Assert.assertTrue(nn.computeOutput(new double[] {
+                1,
+                -1,
+                -1,
+        }).getOutput() < 0);
+
+        Assert.assertTrue(nn.computeOutput(new double[] {
+                1,
+                1,
+                -1,
+        }).getOutput() < 0);
+
+        Assert.assertTrue(nn.computeOutput(new double[] {
+                1,
+                -1,
+                1,
+        }).getOutput() < 0);
+
+        Assert.assertTrue(nn.computeOutput(new double[] {
+                1,
+                1,
+                1,
+        }).getOutput() > 0);
+    }
+
+    public void testXor() throws Exception {
+        MultiNeuralNetwork nn = new MultiNeuralNetwork(10, 2);
+        nn.addInput();
+        nn.addInput();
+        nn.addInput();
+
+        //Simple AND
+        for (int i = 0; i < 300; i++)
+        {
+            PredictionInterface p1 = nn.computeOutput(new double[] {
+                    1,
+                    -1,
+                    -1,
+            });
+            p1.learn(-1);
+
+            PredictionInterface p2 = nn.computeOutput(new double[] {
+                    1,
+                    -1,
+                    1,
+            });
+            p2.learn(1);
+
+            PredictionInterface p3 = nn.computeOutput(new double[] {
+                    1,
+                    1,
+                    -1,
+            });
+            p3.learn(1);
+
+            PredictionInterface p4 = nn.computeOutput(new double[] {
+                    1,
+                    1,
+                    1,
+            });
+            p4.learn(-1);
+        }
+
+        Assert.assertTrue(nn.computeOutput(new double[] {
+                1,
+                -1,
+                -1,
+        }).getOutput() < 0);
+
+        Assert.assertTrue(nn.computeOutput(new double[] {
+                1,
+                1,
+                -1,
+        }).getOutput() > 0);
+
+        Assert.assertTrue(nn.computeOutput(new double[] {
+                1,
+                -1,
+                1,
+        }).getOutput() > 0);
+
+        Assert.assertTrue(nn.computeOutput(new double[] {
+                1,
+                1,
+                1,
+        }).getOutput() < 0);
+    }
+}
+\ No newline at end of file
diff --git a/app/src/androidTest/java/org/rssin/rss/FeedLoaderTest.java b/app/src/androidTest/java/org/rssin/rss/FeedLoaderTest.java
new file mode 100644
index 0000000..f4bbfdd
--- /dev/null
+++ b/app/src/androidTest/java/org/rssin/rss/FeedLoaderTest.java
@@ -0,0 +1,23 @@
+package org.rssin.rss;
+
+import junit.framework.Assert;
+import junit.framework.TestCase;
+
+import java.net.URL;
+
+/**
+ * Created by Randy on 21-5-2015.
+ */
+public class FeedLoaderTest extends TestCase {
+
+
+    public void testFetchXML() throws Exception {
+        String urlstring = "http://www.pcworld.com/index.rss";
+        URL url = new URL(urlstring);
+        FeedLoader loader = new FeedLoader(url);
+        loader.fetchXML();
+        FeedItem f = loader.getFeed().getPosts().get(0);
+        Assert.assertEquals(f.getTitle(), "Amazon adds local groceries and meals to one-hour Prime Now delivery service");
+    }
+
+}
+\ No newline at end of file