Fix unit tests

Add asserts where required, fix tiny issues.

Change-Id: Ie88a39642fd574745d9fa1f0eeee301ff8e19e23
Issue-ID: SDC-2838
Signed-off-by: Dmitry Puzikov <d.puzikov2@partner.samsung.com>
diff --git a/catalog-be/src/test/java/org/openecomp/sdc/be/components/merge/instance/ComponentInstanceArtifactsMergeTest.java b/catalog-be/src/test/java/org/openecomp/sdc/be/components/merge/instance/ComponentInstanceArtifactsMergeTest.java
index 07b2ca6..06b06b0 100644
--- a/catalog-be/src/test/java/org/openecomp/sdc/be/components/merge/instance/ComponentInstanceArtifactsMergeTest.java
+++ b/catalog-be/src/test/java/org/openecomp/sdc/be/components/merge/instance/ComponentInstanceArtifactsMergeTest.java
@@ -79,7 +79,7 @@
 				.getComponentInstanceDeploymentArtifactsTimeOut();
         assertThat(originalComponentDeploymentArtifactsCreatedOnTheInstance.size()).isEqualTo(1);
 		assertThat(componentInstanceDeploymentArtifactsTimeOut.size()).isEqualTo(3);
-		assert (originalComponentDeploymentArtifactsCreatedOnTheInstance.containsKey("artifactTwo"));
+		assertThat(originalComponentDeploymentArtifactsCreatedOnTheInstance.containsKey("artifactTwo")).isTrue();
 	}
 
 	@Test
@@ -141,8 +141,8 @@
 		when(artifactsBusinessLogicMock.updateResourceInstanceArtifactNoContent(Mockito.anyString(), Mockito.any(Component.class), Mockito.any(User.class),
 				Mockito.any(Map.class), Mockito.any(ArtifactOperationInfo.class), Mockito.any(ArtifactDefinition.class))).thenReturn(left);
 
-		testInstance.mergeDataAfterCreate(user, dataForMergeHolder, originComponent, "mock");
-
+		Component result = testInstance.mergeDataAfterCreate(user, dataForMergeHolder, originComponent, "mock");
+		assertThat(result.getDeploymentArtifacts()).isEqualTo(originComponent.getDeploymentArtifacts());
 	}
 
 	private Map<String, ArtifactDefinition> buildDeploymentArtifacts() {
diff --git a/catalog-be/src/test/java/org/openecomp/sdc/be/components/merge/instance/ComponentInstanceCapabilitiesPropertiesMergeTest.java b/catalog-be/src/test/java/org/openecomp/sdc/be/components/merge/instance/ComponentInstanceCapabilitiesPropertiesMergeTest.java
index d3bc590..3e64e52 100644
--- a/catalog-be/src/test/java/org/openecomp/sdc/be/components/merge/instance/ComponentInstanceCapabilitiesPropertiesMergeTest.java
+++ b/catalog-be/src/test/java/org/openecomp/sdc/be/components/merge/instance/ComponentInstanceCapabilitiesPropertiesMergeTest.java
@@ -42,7 +42,7 @@
 import org.openecomp.sdc.common.impl.ExternalConfiguration;
 import org.openecomp.sdc.common.impl.FSConfigurationSource;
 
-import static org.junit.Assert.assertTrue;
+import static org.assertj.core.api.Assertions.assertThat;
 import static org.mockito.Mockito.when;
 
 @RunWith(MockitoJUnitRunner.class)
@@ -78,7 +78,7 @@
         when(capabilitiesPropertiesMergeBL.mergeComponentInstanceCapabilities(currentComponent, origInstanceNode, "instId", origInstanceCapabilities))
             .thenReturn(ActionStatus.OK);
         Component mergeResult = testInstance.mergeDataAfterCreate(new User(), mergeHolder, currentComponent, "instId");
-        assertTrue(mergeResult != null);
+        assertThat(mergeResult).isNotNull();
     }
 
     @Test(expected = ComponentException.class)
@@ -96,5 +96,7 @@
 		ComponentInstance currentResourceInstance = new ComponentInstance();
 		Component originComponent = new Resource();
 		testInstance.saveDataBeforeMerge(dataHolder, containerComponent, currentResourceInstance, originComponent);
+		assertThat(dataHolder.getOrigInstanceCapabilities().size()).isEqualTo(originComponent.getCapabilities().size());
+		assertThat(dataHolder.getOrigInstanceNode()).isEqualTo(originComponent);
     }
 }
diff --git a/catalog-be/src/test/java/org/openecomp/sdc/be/components/merge/instance/ComponentInstanceHeatEnvMergeTest.java b/catalog-be/src/test/java/org/openecomp/sdc/be/components/merge/instance/ComponentInstanceHeatEnvMergeTest.java
index f5317bb..5f70d9d 100644
--- a/catalog-be/src/test/java/org/openecomp/sdc/be/components/merge/instance/ComponentInstanceHeatEnvMergeTest.java
+++ b/catalog-be/src/test/java/org/openecomp/sdc/be/components/merge/instance/ComponentInstanceHeatEnvMergeTest.java
@@ -34,6 +34,7 @@
 import org.openecomp.sdc.be.components.utils.ResourceBuilder;
 import org.openecomp.sdc.be.impl.ComponentsUtils;
 import org.openecomp.sdc.be.model.ArtifactDefinition;
+import org.openecomp.sdc.be.model.Component;
 import org.openecomp.sdc.be.model.Resource;
 import org.openecomp.sdc.be.model.User;
 import org.openecomp.sdc.common.api.ArtifactGroupTypeEnum;
@@ -45,6 +46,7 @@
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
+import static org.assertj.core.api.Assertions.assertThat;
 import static org.mockito.ArgumentMatchers.isNull;
 import static org.mockito.Mockito.when;
 
@@ -80,7 +82,8 @@
         when(heatEnvArtifactsMergeBusinessLogicMock.mergeInstanceHeatEnvArtifacts(dataHolder.getOrigComponentInstanceHeatEnvArtifacts(), resource.safeGetComponentInstanceHeatArtifacts(instanceId)))
                                                    .thenReturn(mergedArtifacts);
         expectMergedArtifactsToBePersisted(mergedArtifacts, instanceId, resource);
-        testInstance.mergeDataAfterCreate(USER, dataHolder, resource, instanceId);
+        Component result = testInstance.mergeDataAfterCreate(USER, dataHolder, resource, instanceId);
+        assertThat(result.getDeploymentArtifacts()).isEqualTo(resource.getDeploymentArtifacts());
     }
 
     private void expectMergedArtifactsToBePersisted(List<ArtifactDefinition> mergedArtifacts, String instanceId, Resource resource) {