first test

src/test/java/djmil/cashcard/CashCardJsonTest.java

@@ -0,0 +1,13 @@
+package djmil.cashcard;
+
+import org.junit.jupiter.api.Test;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+public class CashCardJsonTest {
+
+@Test
+    public void myFirstTest() {
+        assertThat(1).isEqualTo(42);
+    }
+}