Improve formatting.

Author: yuri-sergiichuk

datastore/src/test/java/io/spine/server/storage/datastore/NewBoundedContextBuilderTest.java

@@ -21,7 +21,6 @@
 package io.spine.server.storage.datastore;
 
 import com.google.cloud.datastore.Datastore;
-import com.google.common.truth.Truth;
 import io.spine.server.BoundedContext;
 import io.spine.server.BoundedContextBuilder;
 import io.spine.server.storage.datastore.tenant.TestNamespaceIndex;
@@ -32,6 +31,7 @@
 
 import java.util.Optional;
 
+import static com.google.common.truth.Truth.assertThat;
 import static com.google.common.truth.Truth8.assertThat;
 
 @DisplayName("DatastoreStorageFactory should")
@@ -42,15 +42,18 @@ class NewBoundedContextBuilderTest {
     void testProduceBCBuilder() {
         DatastoreStorageFactory factory = givenFactory();
         BoundedContextBuilder builder = BoundedContext.multitenant(
-                NewBoundedContextBuilderTest.class.getName());
-        assertThat(builder.tenantIndex()).isEmpty();
+                NewBoundedContextBuilderTest.class.getName()
+        );
+        assertThat(builder.tenantIndex())
+                .isEmpty();
 
         Optional<? extends TenantIndex> updatedIndex =
                 factory.configureTenantIndex(builder)
                        .tenantIndex();
-        assertThat(updatedIndex).isPresent();
-        Truth.assertThat(updatedIndex.get())
-             .isInstanceOf(TestNamespaceIndex.getType());
+        assertThat(updatedIndex)
+                .isPresent();
+        assertThat(updatedIndex.get())
+                .isInstanceOf(TestNamespaceIndex.getType());
     }
 
     private static DatastoreStorageFactory givenFactory() {

datastore/src/test/java/io/spine/server/storage/datastore/tenant/SingleTenantNamespaceSupplierTest.java

@@ -28,7 +28,6 @@
 
 import static com.google.common.truth.Truth.assertThat;
 import static io.spine.protobuf.Messages.isDefault;
-import static org.junit.jupiter.api.Assertions.assertNotNull;
 
 @DisplayName("`SingleTenantNamespaceSupplier` should")
 class SingleTenantNamespaceSupplierTest {
@@ -38,10 +37,13 @@ class SingleTenantNamespaceSupplierTest {
     void testProduceEmpty() {
         NamespaceSupplier supplier = NamespaceSupplier.singleTenant();
         Namespace namespace = supplier.get();
-        assertNotNull(namespace);
-        assertThat(namespace.value()).isEmpty();
+        assertThat(namespace)
+                .isNotNull();
+        assertThat(namespace.value())
+                .isEmpty();
         TenantId tenant = namespace.toTenantId();
-        assertThat(isEffectivelyDefault(tenant)).isTrue();
+        assertThat(isEffectivelyDefault(tenant))
+                .isTrue();
     }
 
     @Test
@@ -50,12 +52,16 @@ void testProduceCustom() {
         String namespaceValue = "my-custom-namespace";
         NamespaceSupplier supplier = NamespaceSupplier.singleTenant(namespaceValue);
         Namespace namespace = supplier.get();
-        assertThat(namespace).isNotNull();
-        assertThat(namespace.value()).isEqualTo(namespaceValue);
+        assertThat(namespace)
+                .isNotNull();
+        assertThat(namespace.value())
+                .isEqualTo(namespaceValue);
 
         TenantId tenant = namespace.toTenantId();
-        assertThat(isEffectivelyDefault(tenant)).isFalse();
-        assertThat(tenant.getValue()).isEqualTo(namespaceValue);
+        assertThat(isEffectivelyDefault(tenant))
+                .isFalse();
+        assertThat(tenant.getValue())
+                .isEqualTo(namespaceValue);
     }
 
     private static boolean isEffectivelyDefault(TenantId tenant) {