1 files changed, 55 insertions, 2 deletions

diff --git a/components/kpi-computation-ms/src/test/java/org/onap/dcaegen2/kpi/computation/KpiComputationTest.java b/components/kpi-computation-ms/src/test/java/org/onap/dcaegen2/kpi/computation/KpiComputationTest.java
index 4320981b..dc1becb3 100644
--- a/components/kpi-computation-ms/src/test/java/org/onap/dcaegen2/kpi/computation/KpiComputationTest.java
+++ b/components/kpi-computation-ms/src/test/java/org/onap/dcaegen2/kpi/computation/KpiComputationTest.java
@@ -26,12 +26,21 @@ import static org.junit.Assert.assertEquals;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.when;
 
+import java.util.ArrayList;
 import java.util.List;
+import java.util.Map;
 
 import org.junit.Test;
+import org.junit.jupiter.api.Assertions;
+import org.mockito.Spy;
 import org.onap.dcaegen2.kpi.computation.KpiComputation;
+import org.onap.dcaegen2.kpi.exception.KpiComputationException;
 import org.onap.dcaegen2.kpi.models.Configuration;
+import org.onap.dcaegen2.kpi.models.KpiOperand;
+import org.onap.dcaegen2.kpi.models.MeasDataCollection;
 import org.onap.dcaegen2.kpi.models.VesEvent;
+import org.powermock.core.classloader.annotations.PrepareForTest;
+import org.powermock.reflect.Whitebox;
 
 import java.math.BigDecimal;
 import java.math.RoundingMode;
@@ -47,7 +56,9 @@ public class KpiComputationTest {
     private static final String VES_MESSAGE_NULL_FILE = "kpi/ves_message_null.json";
     private static final String VES_MESSAGE_SLICING_FILE = "kpi/ves_message_slicing.json";
     private static final String VES_MESSAGE_EVENTNAME_FILE = "kpi/ves_message_eventname.json";
-
+    private static final String VES_MESSAGE_FIELD_MISSING ="kpi/ves_message_missing_field.json";
+    
+    
     @Test
     public void testKpiComputation() {
 
@@ -88,7 +99,7 @@ public class KpiComputationTest {
         assertEquals(vesEvent.getEvent().getPerf3gppFields().getMeasDataCollection().getMeasInfoList().get(0)
                      .getMeasValuesList().get(0).getMeasResults().get(0).getSvalue(), "158");
     }
-
+    
     @Test
     public void testKpiComputationSumRatio() {
 
@@ -134,5 +145,47 @@ public class KpiComputationTest {
         List<VesEvent> vesList = new KpiComputation().checkAndDoComputation(vesMessage, config);
         assertEquals(null, vesList);
     }
+    
+    @Test
+    public void testKpiComputationException() {
+        String strKpiConfigSumRatio = FileUtils.getFileContents(KPI_CONFIG_SUMRATIO_FILE);
 
+        String vesMessage = FileUtils.getFileContents(VES_MESSAGE_FIELD_MISSING);
+        Configuration config = mock(Configuration.class);
+        when(config.getKpiConfig()).thenReturn(strKpiConfigSumRatio);
+        KpiComputationException kpiException = Assertions.assertThrows(KpiComputationException.class, () -> {
+        	List<VesEvent>  vesList = new KpiComputation().checkAndDoComputation(vesMessage, config);
+        });
+        Assertions.assertEquals("Required Field: EventName not present", kpiException.getMessage());
+    }
+    @Test
+    public void testNullOperands() throws Exception {
+        Map<String, List<KpiOperand>> operands = null;
+        operands = Whitebox.invokeMethod(new KpiComputation(), "getOperands", new MeasDataCollection(), null);
+        Assertions.assertNull(operands);
+    }
+    @Test
+    public void testEmptyOperands() throws Exception {
+    	 Map<String, List<KpiOperand>> operands = null;
+    	 List<String> inputOperands = new ArrayList<String>();
+         operands = Whitebox.invokeMethod(new KpiComputation(), "getOperands", new MeasDataCollection(), inputOperands);
+         Assertions.assertNull(operands);
+    }
+    @Test
+    public void testNullVESMessage() {
+    	String strKpiConfigSumRatio = FileUtils.getFileContents(KPI_CONFIG_FILE);
+    	Configuration config = mock(Configuration.class);
+        when(config.getKpiConfig()).thenReturn(strKpiConfigSumRatio);
+        List<VesEvent> vesList = new KpiComputation().checkAndDoComputation(null, config);
+        Assertions.assertNull(vesList);
+    }
+    @Test
+    public void testEmptyVESMessage() {
+    	String strKpiConfigSumRatio = FileUtils.getFileContents(KPI_CONFIG_FILE);
+    	Configuration config = mock(Configuration.class);
+        when(config.getKpiConfig()).thenReturn(strKpiConfigSumRatio);
+        String vesMessage = "{}";
+        List<VesEvent> vesList = new KpiComputation().checkAndDoComputation(vesMessage, config);
+        Assertions.assertNull(vesList);
+    }
 }