demointegration added

src/test/java/de/rwth/swc/sqa/DemoIntegrationTest.java

+package de.rwth.swc.sqa;
+
+import io.restassured.RestAssured;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.web.server.LocalServerPort;
+
+import static io.restassured.RestAssured.given;
+import static org.springframework.boot.test.context.SpringBootTest.WebEnvironment.RANDOM_PORT;
+
+@SpringBootTest(webEnvironment = RANDOM_PORT)
+public class DemoIntegrationTest {
+    private static final String PATH = "/customers/1/discountcards";
+
+    @LocalServerPort
+    private int port;
+    @BeforeEach
+    public void setUp() {
+        RestAssured.port = port;
+    }
+
+    @Test
+    public void whenReadAll_thenStatusIsNotImplemented() {
+        given().get(PATH).then().statusCode(501);
+    }
+}
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