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  package com.jcabi.dynamo;
  
  import com.amazonaws.services.dynamodbv2.AmazonDynamoDB;
  import com.amazonaws.services.dynamodbv2.model.AttributeValue;
  import com.amazonaws.services.dynamodbv2.model.ConsumedCapacity;
  import com.amazonaws.services.dynamodbv2.model.DeleteItemRequest;
  import com.amazonaws.services.dynamodbv2.model.DeleteItemResult;
  import com.amazonaws.services.dynamodbv2.model.DescribeTableRequest;
  import com.amazonaws.services.dynamodbv2.model.DescribeTableResult;
  import com.amazonaws.services.dynamodbv2.model.KeySchemaElement;
  import com.amazonaws.services.dynamodbv2.model.PutItemRequest;
  import com.amazonaws.services.dynamodbv2.model.PutItemResult;
  import com.amazonaws.services.dynamodbv2.model.TableDescription;
  import org.hamcrest.Matchers;
  import org.junit.jupiter.api.Test;
  import org.mockito.Mockito;
  import org.mockito.hamcrest.MockitoHamcrest;
  
  /**
   * Test case for {@link AwsTable}.
   * @since 0.1
   */
  final class AwsTableTest {
  
      /**
       * Constant for 'tableName' attribute.
       */
      private static final String TABLE_NAME = "tableName";
  
      /**
       * Constant for 'key' attribute.
       */
      private static final String KEY = "key";
  
      @Test
      void savesItemToDynamo() throws Exception {
          final Credentials credentials = Mockito.mock(Credentials.class);
          final AmazonDynamoDB aws = Mockito.mock(AmazonDynamoDB.class);
          Mockito.doReturn(aws).when(credentials).aws();
          Mockito.doReturn(
              new PutItemResult().withConsumedCapacity(
                  new ConsumedCapacity().withCapacityUnits(1.0d)
              )
          ).when(aws).putItem(Mockito.any(PutItemRequest.class));
          Mockito.doReturn(
              new DescribeTableResult().withTable(
                  new TableDescription().withKeySchema(
                      new KeySchemaElement().withAttributeName(AwsTableTest.KEY)
                  )
              )
          ).when(aws).describeTable(Mockito.any(DescribeTableRequest.class));
          final String attr = "attribute-1";
          final AttributeValue value = new AttributeValue("value-1");
          final String name = "table-name";
          final Table table = new AwsTable(
              credentials, Mockito.mock(Region.class), name
          );
          table.put(new Attributes().with(attr, value));
          Mockito.verify(aws).putItem(
              (PutItemRequest) MockitoHamcrest.argThat(
                  Matchers.allOf(
                      Matchers.hasProperty(
                          AwsTableTest.TABLE_NAME,
                          Matchers.equalTo(name)
                      ),
                      Matchers.hasProperty(
                          "item",
                          Matchers.hasEntry(
                              Matchers.equalTo(attr),
                              Matchers.equalTo(value)
                         )
                     )
                 )
             )
         );
     }
 
     @Test
     void deletesItemFromDynamo() throws Exception {
         final Credentials credentials = Mockito.mock(Credentials.class);
         final AmazonDynamoDB aws = Mockito.mock(AmazonDynamoDB.class);
         Mockito.doReturn(aws).when(credentials).aws();
         Mockito.doReturn(
             new DeleteItemResult().withConsumedCapacity(
                 new ConsumedCapacity().withCapacityUnits(1.0d)
             )
         ).when(aws).deleteItem(Mockito.any(DeleteItemRequest.class));
         Mockito.doReturn(
             new DescribeTableResult().withTable(
                 new TableDescription().withKeySchema(
                     new KeySchemaElement().withAttributeName(AwsTableTest.KEY)
                 )
             )
         ).when(aws).describeTable(Mockito.any(DescribeTableRequest.class));
         final String attr = "attribute-2";
         final AttributeValue value = new AttributeValue("value-2");
         final String name = "table-name-2";
         final Table table = new AwsTable(
             credentials, Mockito.mock(Region.class), name
         );
         table.delete(new Attributes().with(attr, value));
         Mockito.verify(aws).deleteItem(
             (DeleteItemRequest) MockitoHamcrest.argThat(
                 Matchers.allOf(
                     Matchers.hasProperty(
                         AwsTableTest.TABLE_NAME,
                         Matchers.equalTo(name)
                     ),
                     Matchers.hasProperty(
                         AwsTableTest.KEY,
                         Matchers.hasEntry(
                             Matchers.equalTo(attr),
                             Matchers.equalTo(value)
                         )
                     )
                 )
             )
         );
     }
 }