DATAES-363 - Polishing.

Original pull request: spring-projects#183.

Author: odrotbohm

src/test/java/org/springframework/data/elasticsearch/repository/support/SimpleElasticsearchRepositoryTests.java

@@ -277,14 +277,15 @@ public void shouldReturnTrueGivenDocumentWithIdExists() {
 
 	@Test // DATAES-363
 	public void shouldReturnFalseGivenDocumentWithIdDoesNotExist() {
+		
 		// given
 		String documentId = randomNumeric(5);
 
 		// when
 		boolean exist = repository.existsById(documentId);
 
 		// then
-		assertEquals(exist, false);
+		assertThat(exist, is(false));
 	}
 
 	@Test

src/test/java/org/springframework/data/elasticsearch/repository/support/UUIDElasticsearchRepositoryTests.java

@@ -265,14 +265,15 @@ public void shouldReturnTrueGivenDocumentWithIdExists() {
 
 	@Test // DATAES-363
 	public void shouldReturnFalseGivenDocumentWithIdDoesNotExist() {
+		
 		// given
 		UUID documentId = UUID.randomUUID();
 
 		// when
 		boolean exist = repository.existsById(documentId);
 
 		// then
-		assertEquals(exist, false);
+		assertThat(exist, is(false));
 	}
 
 	@Test