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package org.junit.internal.runners;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.util.ArrayList;
import java.util.List;
import org.junit.After;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.runners.BlockJUnit4ClassRunner;
/**
* @deprecated Included for backwards compatibility with JUnit 4.4. Will be
* removed in the next major release. Please use
* {@link BlockJUnit4ClassRunner} in place of {@link JUnit4ClassRunner}.
*/
@Deprecated
public class MethodValidator {
private final List<Throwable> errors = new ArrayList<Throwable>();
private TestClass testClass;
public MethodValidator(TestClass testClass) {
this.testClass = testClass;
}
public void validateInstanceMethods() {
validateTestMethods(After.class, false);
validateTestMethods(Before.class, false);
validateTestMethods(Test.class, false);
List<Method> methods = testClass.getAnnotatedMethods(Test.class);
if (methods.size() == 0) {
errors.add(new Exception("No runnable methods"));
}
}
public void validateStaticMethods() {
validateTestMethods(BeforeClass.class, true);
validateTestMethods(AfterClass.class, true);
}
public List<Throwable> validateMethodsForDefaultRunner() {
validateNoArgConstructor();
validateStaticMethods();
validateInstanceMethods();
return errors;
}
public void assertValid() throws InitializationError {
if (!errors.isEmpty()) {
throw new InitializationError(errors);
}
}
public void validateNoArgConstructor() {
try {
testClass.getConstructor();
} catch (Exception e) {
errors.add(new Exception("Test class should have public zero-argument constructor", e));
}
}
private void validateTestMethods(Class<? extends Annotation> annotation,
boolean isStatic) {
List<Method> methods = testClass.getAnnotatedMethods(annotation);
for (Method each : methods) {
if (Modifier.isStatic(each.getModifiers()) != isStatic) {
String state = isStatic ? "should" : "should not";
errors.add(new Exception("Method " + each.getName() + "() "
+ state + " be static"));
}
if (!Modifier.isPublic(each.getDeclaringClass().getModifiers())) {
errors.add(new Exception("Class " + each.getDeclaringClass().getName()
+ " should be public"));
}
if (!Modifier.isPublic(each.getModifiers())) {
errors.add(new Exception("Method " + each.getName()
+ " should be public"));
}
if (each.getReturnType() != Void.TYPE) {
errors.add(new Exception("Method " + each.getName()
+ " should be void"));
}
if (each.getParameterTypes().length != 0) {
errors.add(new Exception("Method " + each.getName()
+ " should have no parameters"));
}
}
}
}
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