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package com.vaadin.tests.design;
import java.beans.BeanInfo;
import java.beans.Introspector;
import java.beans.PropertyDescriptor;
import java.lang.reflect.Method;
import java.util.HashMap;
import java.util.Map;
import org.junit.Assert;
import com.vaadin.shared.Connector;
import com.vaadin.ui.Component;
import com.vaadin.ui.Flash;
public abstract class DeclarativeTestBase<T extends Component>
extends DeclarativeTestBaseBase<T> {
private static final boolean debug = false;
private final Map<Class<?>, EqualsAsserter<?>> comparators = new HashMap<>();
private static final EqualsAsserter standardEqualsComparator = (EqualsAsserter<Object>) Assert::assertEquals;
public class IntrospectorEqualsAsserter<C> implements EqualsAsserter<C> {
private final Class<C> clazz;
public IntrospectorEqualsAsserter(Class<C> clazz) {
this.clazz = clazz;
}
@Override
public void assertObjectEquals(C object1, C object2) {
try {
BeanInfo bi = Introspector.getBeanInfo(clazz);
for (PropertyDescriptor pd : bi.getPropertyDescriptors()) {
Method readMethod = pd.getReadMethod();
Method writeMethod = pd.getWriteMethod();
if (acceptProperty(clazz, readMethod, writeMethod)) {
Object property1 = readMethod.invoke(object1);
Object property2 = readMethod.invoke(object2);
assertEquals(pd.getDisplayName(), property1, property2);
}
}
} catch (Exception e) {
throw new RuntimeException(e);
}
}
}
{
comparators.put(Flash.class,
new IntrospectorEqualsAsserter<Flash>(Flash.class) {
@Override
public void assertObjectEquals(Flash o1, Flash o2) {
super.assertObjectEquals(o1, o2);
assertEquals("parameterNames", o1.getParameterNames(),
o2.getParameterNames());
for (String name : o1.getParameterNames()) {
assertEquals("Parameter " + name,
o1.getParameter(name),
o2.getParameter(name));
}
}
});
}
protected boolean acceptProperty(Class<?> clazz, Method readMethod,
Method writeMethod) {
if (readMethod == null || writeMethod == null) {
return false;
}
// Needed to access public properties inherited from a
// nonpublic superclass, see #17425
readMethod.setAccessible(true);
writeMethod.setAccessible(true);
if (Connector.class.isAssignableFrom(clazz)
&& readMethod.getName().equals("getParent")) {
// Hack to break cycles in the connector hierarchy
return false;
}
try {
clazz.getDeclaredMethod(readMethod.getName());
} catch (Exception e) {
// Not declared in this class, will be tested by parent
// class tester
if (debug) {
System.out.println("Skipped " + clazz.getSimpleName() + "."
+ readMethod.getName());
}
return false;
}
if (debug) {
System.out.println("Testing " + clazz.getSimpleName() + "."
+ readMethod.getName());
}
return true;
}
@Override
protected EqualsAsserter getComparator(Class c) {
com.vaadin.tests.design.DeclarativeTestBaseBase.EqualsAsserter<?> comp = comparators
.get(c);
if (comp == null) {
if (c.isEnum()) {
return standardEqualsComparator;
}
if (debug) {
System.out.println("No comparator found for " + c.getName()
+ ". Using introspector.");
}
return new IntrospectorEqualsAsserter<>(c);
}
return comp;
}
}
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