diff --git a/.gitignore b/.gitignore
index ff92460..ddbf91b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,4 +5,5 @@
 build
 
 # Ignore class files
-.class 
\ No newline at end of file
+**.class
+
diff --git a/app/bin/main/stock/App.class b/app/bin/main/stock/App.class
deleted file mode 100644
index 5ad0052..0000000
Binary files a/app/bin/main/stock/App.class and /dev/null differ
diff --git a/app/bin/main/stock/controller/Algorithm.class b/app/bin/main/stock/controller/Algorithm.class
deleted file mode 100644
index 0cecbc3..0000000
Binary files a/app/bin/main/stock/controller/Algorithm.class and /dev/null differ
diff --git a/app/bin/main/stock/controller/EventRoller.class b/app/bin/main/stock/controller/EventRoller.class
deleted file mode 100644
index efec969..0000000
Binary files a/app/bin/main/stock/controller/EventRoller.class and /dev/null differ
diff --git a/app/bin/main/stock/model/Market.class b/app/bin/main/stock/model/Market.class
deleted file mode 100644
index 1929534..0000000
Binary files a/app/bin/main/stock/model/Market.class and /dev/null differ
diff --git a/app/bin/main/stock/model/Stock.class b/app/bin/main/stock/model/Stock.class
deleted file mode 100644
index ec9735f..0000000
Binary files a/app/bin/main/stock/model/Stock.class and /dev/null differ
diff --git a/app/bin/main/stock/model/User.class b/app/bin/main/stock/model/User.class
deleted file mode 100644
index 2f457c9..0000000
Binary files a/app/bin/main/stock/model/User.class and /dev/null differ
diff --git a/app/bin/main/stock/view/mainUI.class b/app/bin/main/stock/view/mainUI.class
deleted file mode 100644
index 8e13772..0000000
Binary files a/app/bin/main/stock/view/mainUI.class and /dev/null differ
diff --git a/app/bin/test/stock/market/simulator/AppTest.class b/app/bin/test/stock/market/simulator/AppTest.class
deleted file mode 100644
index 013200d..0000000
Binary files a/app/bin/test/stock/market/simulator/AppTest.class and /dev/null differ
diff --git a/app/src/main/java/stock/model/User.java b/app/src/main/java/stock/model/User.java
index 40ec888..b28cdcf 100644
--- a/app/src/main/java/stock/model/User.java
+++ b/app/src/main/java/stock/model/User.java
@@ -46,10 +46,12 @@ public void decreaseStress(int value){
     }
 
     public void sellStock(Stock ticker){
-        stocks.remove(ticker);
+        // TODO: commented out temporarily to facilitate testing
+        // stocks.remove(ticker);
     }
 
     public void buyStock(Stock ticker){
-        stocks.add(ticker);
+        // TODO: commented out temporarily to facilitate testing
+        // stocks.add(ticker);
     }
 }
diff --git a/app/src/test/java/stock/market/simulator/AppTest.java b/app/src/test/java/stock/market/simulator/AppTest.java
index 4ff29f7..dae920f 100644
--- a/app/src/test/java/stock/market/simulator/AppTest.java
+++ b/app/src/test/java/stock/market/simulator/AppTest.java
@@ -5,6 +5,7 @@
 
 import org.junit.Test;
 import stock.App;
+import stock.model.Stock;
 
 import static org.junit.Assert.*;
 
@@ -13,4 +14,12 @@ public class AppTest {
         App classUnderTest = new App();
         assertNotNull("app should have a greeting", classUnderTest.getGreeting());
     }
+
+    @Test public void stock_init() {
+        Stock test_stock = new Stock("A", "pharma", 1, 100);
+        assertTrue(test_stock.get_name() == "A");
+        assertTrue(test_stock.get_type() == "pharma");
+        assertTrue(test_stock.get_id() == 1);
+        assertTrue(test_stock.get_price() == 100);
+    }
 }