Re-add Junit for UnitTests
diff --git a/app/build.gradle b/app/build.gradle
index ff2d4fa..8462e2d 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -34,4 +34,8 @@
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
     }
+
+    dependencies {
+        testCompile 'junit:junit:4.12'
+    }
 }
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