Expand scope of SpringFailOnTimeoutTests

Issue: SPR-16716

Author: sbrannen

spring-test/src/main/java/org/springframework/test/context/junit4/statements/SpringFailOnTimeout.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2002-2018 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.

spring-test/src/test/java/org/springframework/test/context/junit4/spr16716/SpringFailOnTimeoutExceptionTest.java

@@ -0,0 +1,90 @@
+/*
+ * Copyright 2002-2018 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
+ *
+ *      http://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.test.context.junit4.spr16716;
+
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
+
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.ExpectedException;
+import org.junit.runners.model.Statement;
+import org.mockito.stubbing.Answer;
+
+import org.springframework.test.context.junit4.statements.SpringFailOnTimeout;
+
+import static org.mockito.Mockito.*;
+
+/**
+ * Unit tests for {@link SpringFailOnTimeout}.
+ *
+ * @author Igor Suhorukov
+ * @author Sam Brannen
+ * @since 4.3.17
+ */
+public class SpringFailOnTimeoutTests {
+
+	private Statement statement = mock(Statement.class);
+
+	@Rule
+	public final ExpectedException exception = ExpectedException.none();
+
+
+	@Test
+	public void nullNextStatement() throws Throwable {
+		exception.expect(IllegalArgumentException.class);
+		new SpringFailOnTimeout(null, 1);
+	}
+
+	@Test
+	public void negativeTimeout() throws Throwable {
+		exception.expect(IllegalArgumentException.class);
+		new SpringFailOnTimeout(statement, -1);
+	}
+
+	@Test
+	public void userExceptionPropagates() throws Throwable {
+		doThrow(new Boom()).when(statement).evaluate();
+
+		exception.expect(Boom.class);
+		new SpringFailOnTimeout(statement, 1).evaluate();
+	}
+
+	@Test
+	public void timeoutExceptionThrownIfNoUserException() throws Throwable {
+		doAnswer((Answer<Void>) invocation -> {
+			TimeUnit.MILLISECONDS.sleep(50);
+			return null;
+		}).when(statement).evaluate();
+
+		exception.expect(TimeoutException.class);
+		new SpringFailOnTimeout(statement, 1).evaluate();
+	}
+
+	@Test
+	public void noExceptionThrownIfNoUserExceptionAndTimeoutDoesNotOccur() throws Throwable {
+		doAnswer((Answer<Void>) invocation -> {
+			return null;
+		}).when(statement).evaluate();
+
+		new SpringFailOnTimeout(statement, 100).evaluate();
+	}
+
+	private static class Boom extends RuntimeException {
+	}
+
+}