Create enumeration of all Spring TestContext framework, TestContextEvent types.

Resolves gh-20.

spring-data-geode-test/src/main/java/org/springframework/data/gemfire/tests/mock/test/context/event/TestContextEventType.java

@@ -0,0 +1,91 @@
+/*
+ *  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.mock.test.context.event;
+
+import org.springframework.lang.NonNull;
+import org.springframework.lang.Nullable;
+import org.springframework.test.context.TestContext;
+import org.springframework.test.context.event.AfterTestClassEvent;
+import org.springframework.test.context.event.AfterTestExecutionEvent;
+import org.springframework.test.context.event.AfterTestMethodEvent;
+import org.springframework.test.context.event.BeforeTestClassEvent;
+import org.springframework.test.context.event.BeforeTestExecutionEvent;
+import org.springframework.test.context.event.BeforeTestMethodEvent;
+import org.springframework.test.context.event.PrepareTestInstanceEvent;
+import org.springframework.test.context.event.TestContextEvent;
+import org.springframework.util.Assert;
+
+/**
+ * An enumeration of {@link TestContextEvent} types in the Spring {@link TestContext} test framework.
+ *
+ * @author John Blum
+ * @see org.springframework.test.context.TestContext
+ * @see org.springframework.test.context.event.TestContextEvent
+ * @since 0.0.16
+ */
+@SuppressWarnings("unused")
+public enum TestContextEventType {
+
+	BEFORE_TEST_CLASS(BeforeTestClassEvent.class),
+	PREPARE_TEST_INSTANCE(PrepareTestInstanceEvent.class),
+	BEFORE_TEST_METHOD(BeforeTestMethodEvent.class),
+	BEFORE_TEST_EXECUTION(BeforeTestExecutionEvent.class),
+	AFTER_TEST_EXECUTION(AfterTestExecutionEvent.class),
+	AFTER_TEST_METHOD(AfterTestMethodEvent.class),
+	AFTER_TEST_CLASS(AfterTestClassEvent.class);
+
+
+	public static @Nullable TestContextEventType from(@Nullable TestContextEvent event) {
+
+		for (TestContextEventType eventType : values()) {
+			if (eventType.getTestContextEventType().isInstance(event)) {
+				return eventType;
+			}
+		}
+
+		return null;
+	}
+
+	private final Class<? extends TestContextEvent> eventType;
+
+	/**
+	 * Constructs a new instance of the {@link TestContextEventType} enumeration creating a new enumerated value
+	 * initialized with a {@link TestContextEvent} {@link Class type}.
+	 *
+	 * @param eventType {@link TestContextEvent} {@link Class type} on which this enumerated type is based.
+	 * @throws IllegalArgumentException if the {@link TestContextEvent} {@link Class type} is {@literal null}.
+	 * @see org.springframework.test.context.event.TestContextEvent
+	 * @see java.lang.Class
+	 */
+	TestContextEventType(Class<? extends TestContextEvent> eventType) {
+
+		Assert.notNull(eventType,
+			"The Class type of the TestContextEvent for this enumerated value must not be null");
+
+		this.eventType = eventType;
+	}
+
+	/**
+	 * Returns the {@link TestContextEvent} {@link Class type} on which this enumerated type is based.
+	 *
+	 * @return the {@link TestContextEvent} {@link Class type} on which this enumerated type is based.
+	 * @see org.springframework.test.context.event.TestContextEvent
+	 * @see java.lang.Class
+	 */
+	public @NonNull Class<? extends TestContextEvent> getTestContextEventType() {
+		return eventType;
+	}
+}

spring-data-geode-test/src/test/java/org/springframework/data/gemfire/tests/mock/test/context/event/TestContextEventTypeUnitTest.java

@@ -0,0 +1,78 @@
+/*
+ *  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.mock.test.context.event;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.Mockito.mock;
+
+import java.util.Arrays;
+import java.util.List;
+
+import org.junit.Test;
+
+import org.springframework.test.context.event.AfterTestClassEvent;
+import org.springframework.test.context.event.AfterTestExecutionEvent;
+import org.springframework.test.context.event.AfterTestMethodEvent;
+import org.springframework.test.context.event.BeforeTestClassEvent;
+import org.springframework.test.context.event.BeforeTestExecutionEvent;
+import org.springframework.test.context.event.BeforeTestMethodEvent;
+import org.springframework.test.context.event.PrepareTestInstanceEvent;
+import org.springframework.test.context.event.TestContextEvent;
+
+/**
+ * Unit Tests for {@link TestContextEventType}.
+ *
+ * @author John Blum
+ * @see org.junit.Test
+ * @see org.mockito.Mockito
+ * @see org.springframework.data.gemfire.tests.mock.test.context.event.TestContextEventType
+ * @see org.springframework.test.context.event.TestContextEvent
+ * @since 0.0.16
+ */
+public class TestContextEventTypeUnitTest {
+
+	@Test
+	public void fromTestContextEventToEnum() {
+
+		List<TestContextEvent> events = Arrays.asList(
+			mock(BeforeTestClassEvent.class),
+			mock(PrepareTestInstanceEvent.class),
+			mock(BeforeTestMethodEvent.class),
+			mock(BeforeTestExecutionEvent.class),
+			mock(AfterTestExecutionEvent.class),
+			mock(AfterTestMethodEvent.class),
+			mock(AfterTestClassEvent.class)
+		);
+
+		events.forEach(event -> {
+
+			TestContextEventType eventType = TestContextEventType.from(event);
+
+			assertThat(eventType).isNotNull();
+			assertThat(eventType.getTestContextEventType()).isAssignableFrom(event.getClass());
+		});
+	}
+
+	@Test
+	public void fromTestContextEventReturnsNull() {
+		assertThat(TestContextEventType.from(mock(TestContextEvent.class))).isNull();
+	}
+
+	@Test
+	public void fromNullIsNullSafeAndReturnsNull() {
+		assertThat(TestContextEventType.from(null)).isNull();
+	}
+}