X-Git-Url: https://juplo.de/gitweb/?a=blobdiff_plain;f=src%2Ftest%2Fjava%2Fde%2Fjuplo%2Fkafka%2FSumBusinessLogicTest.java;h=e65ee83939c2532c10404ae6bc211506b7a69909;hb=5592437b9ad0caa7c9dd28b6248cc786fae625d3;hp=27c317aae19806e779931c60cb0f9e1a58232446;hpb=e9f30aead5b4456b51944436961891d9a4962612;p=demos%2Fkafka%2Ftraining

diff --git a/src/test/java/de/juplo/kafka/SumBusinessLogicTest.java b/src/test/java/de/juplo/kafka/SumBusinessLogicTest.java
index 27c317a..e65ee83 100644
--- a/src/test/java/de/juplo/kafka/SumBusinessLogicTest.java
+++ b/src/test/java/de/juplo/kafka/SumBusinessLogicTest.java
@@ -24,4 +24,56 @@ public class SumBusinessLogicTest
     sumBusinessLogic.startSum("foo");
     assertThatIllegalStateException().isThrownBy(() -> sumBusinessLogic.startSum("foo"));
   }
+
+  @Test
+  @DisplayName("An empty Optional should be returned, for a non-existing sum")
+  public void testEmptyOptionalForNonExistingSum()
+  {
+    SumBusinessLogic sumBusinessLogic = new SumBusinessLogic();
+    assertThat(sumBusinessLogic.getSum("foo")).isEmpty();
+  }
+
+  @Test
+  @DisplayName("A non-empty Optional should be returned, for an existing sum")
+  public void testNonEmptyOptionalForExistingSum()
+  {
+    SumBusinessLogic sumBusinessLogic = new SumBusinessLogic();
+    sumBusinessLogic.startSum("foo");
+    assertThat(sumBusinessLogic.getSum("foo")).isNotEmpty();
+  }
+
+  @Test
+  @DisplayName("A sum can be ended, if it does exist")
+  public void testCanEndIfSumExists()
+  {
+    SumBusinessLogic sumBusinessLogic = new SumBusinessLogic();
+    sumBusinessLogic.startSum("foo");
+    assertThatNoException().isThrownBy(() -> sumBusinessLogic.endSum("foo"));
+  }
+
+  @Test
+  @DisplayName("An existing Sum returns a non-null value, if ended")
+  public void testEndSumReturnsNonNullValueIfSumExists()
+  {
+    SumBusinessLogic sumBusinessLogic = new SumBusinessLogic();
+    sumBusinessLogic.startSum("foo");
+    assertThat(sumBusinessLogic.endSum("foo")).isNotNull();
+  }
+
+  @Test
+  @DisplayName("An existing Sum returns a non-negative value, if ended")
+  public void testEndSumReturnsNonNegativeValueIfSumExists()
+  {
+    SumBusinessLogic sumBusinessLogic = new SumBusinessLogic();
+    sumBusinessLogic.startSum("foo");
+    assertThat(sumBusinessLogic.endSum("foo")).isNotNegative();
+  }
+
+  @Test
+  @DisplayName("Ending a non-existing sum, causes an IllegalStateException")
+  public void testEndSumCausesExceptionIfNotExists()
+  {
+    SumBusinessLogic sumBusinessLogic = new SumBusinessLogic();
+    assertThatIllegalStateException().isThrownBy(() -> sumBusinessLogic.endSum("foo"));
+  }
 }