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//
// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you 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 com.cloud.utils;
import static com.cloud.utils.ReflectUtil.flattenProperties;
import static com.google.common.collect.Lists.newArrayList;
import static java.lang.Boolean.TRUE;
import static java.util.Collections.emptyList;
import static org.junit.Assert.assertEquals;
import java.lang.reflect.Field;
import java.util.List;
import java.util.Set;
import org.junit.Assert;
import org.junit.Test;
public final class ReflectUtilTest {
@Test
public void testFlattenNonNullProperties() throws Exception {
final List<String> expectedResult = newArrayList("booleanProperty", TRUE.toString(), "intProperty", "1", "stringProperty", "foo");
final Bean bean = new Bean(1, true, "foo");
assertEquals(expectedResult, flattenProperties(bean, Bean.class));
}
@Test
public void testFlattenNullProperties() throws Exception {
final List<String> expectedResult = newArrayList("booleanProperty", TRUE.toString(), "intProperty", "1", "stringProperty", "null");
final Bean bean = new Bean(1, true, null);
assertEquals(expectedResult, flattenProperties(bean, Bean.class));
}
@Test
public void testFlattenPropertiesNullTarget() throws Exception {
assertEquals(emptyList(), flattenProperties(null, Bean.class));
}
public static final class Bean {
private final int intProperty;
private final boolean booleanProperty;
private final String stringProperty;
private Bean(final int intProperty, final boolean booleanProperty, final String stringProperty) {
super();
this.intProperty = intProperty;
this.booleanProperty = booleanProperty;
this.stringProperty = stringProperty;
}
public int getIntProperty() {
return intProperty;
}
public boolean isBooleanProperty() {
return booleanProperty;
}
public String getStringProperty() {
return stringProperty;
}
}
static class Empty {
}
static class Foo {
String fooField;
int fooIntField;
}
static class Bar extends Foo {
String barField;
int barIntField;
}
static class Baz extends Foo {
String bazField;
int bazIntField;
}
@Test
public void getAllFieldsForClassWithFoo() throws NoSuchFieldException, SecurityException {
Set<Field> fooFields = ReflectUtil.getAllFieldsForClass(Foo.class, new Class<?>[] {});
Assert.assertNotNull(fooFields);
Assert.assertTrue(fooFields.contains(Foo.class.getDeclaredField("fooField")));
Assert.assertTrue(fooFields.contains(Foo.class.getDeclaredField("fooIntField")));
}
@Test
public void getAllFieldsForClassWithBar() throws NoSuchFieldException, SecurityException {
Set<Field> barFields = ReflectUtil.getAllFieldsForClass(Bar.class, new Class<?>[] {});
Assert.assertNotNull(barFields);
Assert.assertTrue(barFields.contains(Foo.class.getDeclaredField("fooField")));
Assert.assertTrue(barFields.contains(Foo.class.getDeclaredField("fooIntField")));
Assert.assertTrue(barFields.contains(Bar.class.getDeclaredField("barField")));
Assert.assertTrue(barFields.contains(Bar.class.getDeclaredField("barIntField")));
}
@Test
public void getAllFieldsForClassWithBarWithoutFoo() throws NoSuchFieldException, SecurityException {
Set<Field> barFields = ReflectUtil.getAllFieldsForClass(Bar.class, new Class<?>[] {Foo.class});
Assert.assertNotNull(barFields);
Assert.assertTrue(barFields.contains(Bar.class.getDeclaredField("barField")));
Assert.assertTrue(barFields.contains(Bar.class.getDeclaredField("barIntField")));
}
@Test
public void getAllFieldsForClassWithBazWithoutBar() throws NoSuchFieldException, SecurityException {
Set<Field> bazFields = ReflectUtil.getAllFieldsForClass(Baz.class, new Class<?>[] {Bar.class});
Assert.assertNotNull(bazFields);
Assert.assertTrue(bazFields.contains(Foo.class.getDeclaredField("fooField")));
Assert.assertTrue(bazFields.contains(Foo.class.getDeclaredField("fooIntField")));
Assert.assertTrue(bazFields.contains(Baz.class.getDeclaredField("bazField")));
Assert.assertTrue(bazFields.contains(Baz.class.getDeclaredField("bazIntField")));
}
}