Do not use mock for Rename Operation Exception Test

Issue gh-2645

Author: marcusdacoregio

spring-session-data-redis/src/integration-test/java/org/springframework/session/data/redis/RedisIndexedSessionRepositoryDynamicITests.java

@@ -47,6 +47,7 @@
 import org.springframework.test.context.web.WebAppConfiguration;
 
 import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatNoException;
 
 /**
  * Integration tests for {@link RedisIndexedSessionRepository}.
@@ -682,6 +683,20 @@ void changeSessionIdSaveConcurrently() {
 		assertThat(this.repository.findById(copy2.getId())).isNull();
 	}
 
+	// gh-1743
+	@Test
+	void saveChangeSessionIdWhenFailedRenameOperationExceptionThenIgnoreError() {
+		RedisSession toSave = this.repository.createSession();
+		String sessionId = toSave.getId();
+
+		this.repository.save(toSave);
+		RedisSession session = this.repository.findById(sessionId);
+		this.repository.deleteById(sessionId);
+		session.changeSessionId();
+
+		assertThatNoException().isThrownBy(() -> this.repository.save(session));
+	}
+
 	private String getSecurityName() {
 		return this.context.getAuthentication().getName();
 	}