diff --git a/tests/src/files/Ausleihe.java b/tests/src/files/Ausleihe.java
new file mode 100644
index 0000000..184167d
--- /dev/null
+++ b/tests/src/files/Ausleihe.java
@@ -0,0 +1,23 @@
+package files;
+
+public class Ausleihe {
+    public boolean isSignedIn;
+    public boolean mediumAvailable;
+
+    public Ausleihe (boolean isSignedIn, boolean mediumAvailable) {
+        this.isSignedIn = isSignedIn;
+        this.mediumAvailable = mediumAvailable;
+    }
+
+    public String borrowMedium() {
+        if (!isSignedIn) {
+            return "Not signed in, returning";
+        }
+
+        if (!mediumAvailable) {
+            return "Medium is not available, pick a different one";
+        }
+
+        return "Borrowed medium!";
+    }
+}
diff --git a/tests/tests/files/tests.java b/tests/tests/files/tests.java
new file mode 100644
index 0000000..3a3d388
--- /dev/null
+++ b/tests/tests/files/tests.java
@@ -0,0 +1,14 @@
+package files;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+public class tests {
+    @org.junit.jupiter.api.Test
+    void unitTest() {
+        Ausleihe ausleihe = new Ausleihe(true, true);
+
+        String expectedString = "Borrowed medium!";
+
+        assertTrue(ausleihe.borrowMedium().equals(expectedString));
+    }
+}