org.thelq.stackexchange.api.model.types.EntryFormatTest.java Source code

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Here is the source code for org.thelq.stackexchange.api.model.types.EntryFormatTest.java

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/**
 * Copyright (C) 2013 Leon Blakey <lord.quackstar at gmail.com>
 *
 * This file is part of stackapi2java.
 *
 * 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.thelq.stackexchange.api.model.types;

import com.google.common.base.Predicate;
import com.google.common.collect.ImmutableList;
import java.io.IOException;
import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.List;
import org.apache.commons.lang3.StringUtils;
import org.apache.commons.lang3.SystemUtils;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;
import static org.testng.Assert.*;
import org.thelq.stackexchange.api.TestUtils;

/**
 *
 * @author Leon Blakey <lord dot quackstar at gmail dot com>
 */
public class EntryFormatTest {
    protected static final Predicate<Class<?>> NO_ENUMS_FILTER = new Predicate<Class<?>>() {
        public boolean apply(Class<?> input) {
            return !input.isEnum();
        }
    };

    protected static ImmutableList<Field> getEntriesFields(Predicate<Field> allowedFilter) throws IOException {
        ImmutableList.Builder<Field> fields = ImmutableList.builder();
        for (Class<?> curClass : TestUtils.loadClasses(PostEntry.class, NO_ENUMS_FILTER))
            for (Field curField : curClass.getDeclaredFields()) {
                if (allowedFilter != null && !allowedFilter.apply(curField))
                    continue;
                fields.add(new Field[] { curField });
            }
        return fields.build();
    }

    @DataProvider
    public Object[][] enumsInFieldsAreNotFromAnotherClassDataProvider() throws IOException {
        return TestUtils.toTestParameters(getEntriesFields(new Predicate<Field>() {
            public boolean apply(Field input) {
                Class type = input.getType();
                return type.isEnum() && type.getDeclaringClass() != null;
            }
        }));
    }

    @Test(dataProvider = "enumsInFieldsAreNotFromAnotherClassDataProvider")
    public void enumsInFieldsAreNotFromAnotherClass(Field curField) {
        assertEquals(curField.getDeclaringClass(), curField.getType().getDeclaringClass(), "Classes do not match");
    }

    @DataProvider
    public Object[][] fieldsAllDataProvider() throws IOException {
        return TestUtils.toTestParameters(getEntriesFields(null));
    }

    @Test(dataProvider = "fieldsAllDataProvider")
    public void noPrimatives(Field curField) {
        assertFalse(curField.getType().isPrimitive(), "No primatives allowed for " + curField);
    }

    @Test(dataProvider = "fieldsAllDataProvider")
    public void noLong(Field curField) {
        assertNotEquals(curField.getType(), Long.class);
    }

    @DataProvider
    public Object[][] noExtraEnumMethods() throws IOException {
        List<Class<?>> enumClasses = new ArrayList<Class<?>>();
        for (Class<?> curClass : TestUtils.loadClasses(PostEntry.class, null)) {
            if (curClass.isEnum())
                enumClasses.add(curClass);
            //Load subtypes
            for (Class<?> curSubClass : curClass.getDeclaredClasses())
                if (curSubClass.isEnum())
                    enumClasses.add(curSubClass);
        }
        return TestUtils.toTestParameters(enumClasses);
    }

    @Test(dataProvider = "noToStringEnumDataProvider")
    public void noExtraEnumMethods(Class<?> curEnum) throws NoSuchMethodException {
        assertEquals(curEnum.getDeclaredMethods().length, 2,
                "Enum " + curEnum.getName() + " has extra methods: " + SystemUtils.LINE_SEPARATOR
                        + StringUtils.join(curEnum.getDeclaredMethods(), SystemUtils.LINE_SEPARATOR));
    }
}