Cleanup all SSL configuration and state in Apache Geode.

spring-data-geode-test/src/test/java/org/springframework/data/gemfire/tests/integration/SslConfigurationIntegrationTests.java

@@ -0,0 +1,69 @@
+/*
+ *  Copyright 2019 the original author or authors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *       https://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+ *  or implied. See the License for the specific language governing
+ *  permissions and limitations under the License.
+ */
+package org.springframework.data.gemfire.tests.integration;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import java.lang.reflect.Method;
+import java.util.Optional;
+
+import org.apache.geode.internal.net.SSLConfigurationFactory;
+
+import org.junit.Test;
+
+import org.springframework.util.ReflectionUtils;
+
+/**
+ * Integration Tests asserting that {@link IntegrationTestsSupport} clears the SSL configuration of Apache Geode
+ * between test case runs.
+ *
+ * @author John Blum
+ * @see org.apache.geode.internal.net.SSLConfigurationFactory
+ * @see org.springframework.data.gemfire.tests.integration.IntegrationTestsSupport
+ * @since 0.0.8
+ */
+public class SslConfigurationIntegrationTests {
+
+	private SSLConfigurationFactory getInstance() {
+
+		Method getInstance = ReflectionUtils.findMethod(SSLConfigurationFactory.class, "getInstance");
+
+		return Optional.ofNullable(getInstance)
+			.map(method -> {
+
+				ReflectionUtils.makeAccessible(method);
+
+				return (SSLConfigurationFactory) ReflectionUtils.invokeMethod(method, null);
+			})
+			.orElse(null);
+	}
+
+	@Test
+	public void getInstanceReturnsSameReferenceBeforeCloseThenReturnsDifferentReferenceAfterClose() {
+
+		SSLConfigurationFactory sslConfigurationFactoryOne = getInstance();
+
+		assertThat(sslConfigurationFactoryOne).isNotNull();
+		assertThat(getInstance()).isSameAs(sslConfigurationFactoryOne);
+
+		IntegrationTestsSupport.closeAnyExistingSslConfigurationBeforeTestExecution();
+
+		SSLConfigurationFactory sslConfigurationFactoryTwo = getInstance();
+
+		assertThat(sslConfigurationFactoryTwo).isNotNull();
+		assertThat(sslConfigurationFactoryTwo).isNotSameAs(sslConfigurationFactoryOne);
+	}
+}