X-Git-Url: https://juplo.de/gitweb/?a=blobdiff_plain;f=src%2Ftest%2Fjava%2Fde%2Fjuplo%2Fkafka%2FSumBusinessLogicTest.java;fp=src%2Ftest%2Fjava%2Fde%2Fjuplo%2Fkafka%2FSumBusinessLogicTest.java;h=27c317aae19806e779931c60cb0f9e1a58232446;hb=e9f30aead5b4456b51944436961891d9a4962612;hp=0000000000000000000000000000000000000000;hpb=53c63296c53bfe30bd50eb52a6e455beb6792015;p=demos%2Fkafka%2Ftraining

diff --git a/src/test/java/de/juplo/kafka/SumBusinessLogicTest.java b/src/test/java/de/juplo/kafka/SumBusinessLogicTest.java
new file mode 100644
index 0000000..27c317a
--- /dev/null
+++ b/src/test/java/de/juplo/kafka/SumBusinessLogicTest.java
@@ -0,0 +1,27 @@
+package de.juplo.kafka;
+
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+
+import static org.assertj.core.api.Assertions.*;
+
+
+public class SumBusinessLogicTest
+{
+  @Test
+  @DisplayName("A new sum can be started, if it does not exist")
+  public void testCanStartSumIfNotExists()
+  {
+    SumBusinessLogic sumBusinessLogic = new SumBusinessLogic();
+    assertThatNoException().isThrownBy(() -> sumBusinessLogic.startSum("foo"));
+  }
+
+  @Test
+  @DisplayName("Starting an already existing sum again, causes an IllegalStateException")
+  public void testStartSumCausesExceptionIfExists()
+  {
+    SumBusinessLogic sumBusinessLogic = new SumBusinessLogic();
+    sumBusinessLogic.startSum("foo");
+    assertThatIllegalStateException().isThrownBy(() -> sumBusinessLogic.startSum("foo"));
+  }
+}