diff --git a/.gitignore b/.gitignore
index 6143e53..65a3a1c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -20,3 +20,8 @@
 
 # virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
 hs_err_pid*
+
+
+.idea/
+.gradle/
+build/
diff --git a/src/main/java/Personnummer.java b/src/main/java/Personnummer.java
new file mode 100644
index 0000000..33f451d
--- /dev/null
+++ b/src/main/java/Personnummer.java
@@ -0,0 +1,10 @@
+public class Personnummer {
+
+    public boolean verify(String value) {
+        return false;
+    }
+
+    public boolean verify(Long value) {
+        return false;
+    }
+}
diff --git a/src/test/java/PersonnummerTest.java b/src/test/java/PersonnummerTest.java
new file mode 100644
index 0000000..2d8ed19
--- /dev/null
+++ b/src/test/java/PersonnummerTest.java
@@ -0,0 +1,12 @@
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+public class PersonnummerTest {
+
+    @Test
+    public void testVerifySuccess() {}
+
+    @Test
+    public void testVerifyFail() {}
+}