1 files changed, 68 insertions, 0 deletions
diff --git a/sleepingcelldetector/src/test/java/org/onap/rapp/sleepingcelldetector/service/scd/CalculationUtilTest.java b/sleepingcelldetector/src/test/java/org/onap/rapp/sleepingcelldetector/service/scd/CalculationUtilTest.java
new file mode 100644
index 0000000..f402fe9
--- /dev/null
+++ b/sleepingcelldetector/src/test/java/org/onap/rapp/sleepingcelldetector/service/scd/CalculationUtilTest.java
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2021 Samsung Electronics
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package org.onap.rapp.sleepingcelldetector.service.scd;
+
+import org.assertj.core.util.Lists;
+import org.junit.Assert;
+import org.junit.Test;
+import java.util.List;
+
+public class CalculationUtilTest {
+
+    @Test
+    public void calculateAverageTest(){
+        List<Integer> integers = Lists.list(1,2,3,4,5,6,7,8,9);
+        Assert.assertEquals(CalculationUtil.calculateAverage(integers), Integer.valueOf(5));
+    }
+
+    @Test
+    public void calculateAverageWithSameValuesTest(){
+        List<Integer> integers = Lists.list(1,1,1,1,1,1,1,1,1);
+        Assert.assertEquals(CalculationUtil.calculateAverage(integers), Integer.valueOf(1));
+    }
+
+    @Test
+    public void fillGapsInBeginningTest(){
+        List<Integer> integers = Lists.list(null,null,null,1,2,3,4,5,6,7,8,9);
+        List<Integer> integersToCompare = List.of(5,5,5,1,2,3,4,5,6,7,8,9);
+        Assert.assertEquals(CalculationUtil.fillGaps(integers), integersToCompare);
+    }
+
+    @Test
+    public void fillGapsInMiddleTest(){
+        List<Integer> integers = Lists.list(1,2,3,4,null,null,null,5,6,7,8,9);
+        List<Integer> integersToCompare = List.of(1,2,3,4,5,5,5,5,6,7,8,9);
+        Assert.assertEquals(CalculationUtil.fillGaps(integers), integersToCompare);
+    }
+
+    @Test
+    public void fillGapsInEndTest(){
+        List<Integer> integers = Lists.list(1,2,3,4,5,6,7,8,9,null,null,null);
+        List<Integer> integersToCompare = List.of(1,2,3,4,5,6,7,8,9,5,5,5);
+        Assert.assertEquals(CalculationUtil.fillGaps(integers), integersToCompare);
+    }
+
+    @Test
+    public void fillGapsWithNotEnoughDataTest(){
+        List<Integer> integers = Lists.list(1,2,3,null,null,null,null,null,null,null,null,null);
+        Exception exception = Assert.assertThrows(ArithmeticException.class, () -> CalculationUtil.fillGaps(integers));
+
+        String expectedMessage = "Not enough performance data for prediction, data filling: 25.0%";
+        String actualMessage = exception.getMessage();
+
+        Assert.assertEquals(actualMessage, expectedMessage);
+    }
+
+
+}