at.porscheinformatik.common.spring.web.extended.template.chunk.ChunkTemplateTest.java Source code

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Here is the source code for at.porscheinformatik.common.spring.web.extended.template.chunk.ChunkTemplateTest.java

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/**
 * Copyright 2014 Daniel Furtlehner
 *
 * 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 at.porscheinformatik.common.spring.web.extended.template.chunk;

import java.io.IOException;
import java.io.InputStreamReader;
import java.io.Reader;
import java.nio.charset.Charset;
import java.util.Locale;

import org.apache.commons.io.IOUtils;
import org.hamcrest.CoreMatchers;
import org.junit.Assert;
import org.springframework.core.io.DefaultResourceLoader;
import org.springframework.core.io.Resource;
import org.springframework.core.io.ResourceLoader;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;

import at.porscheinformatik.common.spring.web.extended.io.ResourceType;
import at.porscheinformatik.common.spring.web.extended.template.DefaultTemplateRenderContext;
import at.porscheinformatik.common.spring.web.extended.template.Template;
import at.porscheinformatik.common.spring.web.extended.template.TemplateFactory;
import at.porscheinformatik.common.spring.web.extended.template.TemplateRenderContextHolder;
import at.porscheinformatik.common.spring.web.extended.template.TestExpressionHandlers;

public class ChunkTemplateTest {

    private TemplateFactory factory;
    private ResourceLoader loader = new DefaultResourceLoader();

    @BeforeClass
    public void setupFactory() {
        factory = new ChunkTemplateFactory();

        ((ChunkTemplateFactory) factory).setExpressionHandlers(new TestExpressionHandlers());
        ((ChunkTemplateFactory) factory).buildTheme();

        TemplateRenderContextHolder
                .setCurrentContext(new DefaultTemplateRenderContext(Locale.getDefault(), ResourceType.HTML));
    }

    @Test(dataProvider = "renderTemplateData")
    public void renderTemplate(Resource resource, String templateName, ResourceType type, String expected)
            throws Exception {
        Template t = factory.createTemplate(resource, templateName, resource.getDescription(), type, false);

        String actual = t.render();

        Assert.assertThat(actual, CoreMatchers.equalTo(expected));
    }

    @Test(dataProvider = "renderTemplateData")
    public void performanceTest(Resource resource, String templateName, ResourceType type, String expected)
            throws Exception {
        Template t = factory.createTemplate(resource, templateName, resource.getDescription(), type, false);

        for (int i = 0; i < 1000; i++) {
            Assert.assertThat(t.render(), CoreMatchers.equalTo(expected));
        }
    }

    @DataProvider
    public Object[][] renderTemplateData() {
        return new Object[][] { {
                loader.getResource(
                        "classpath:at/porscheinformatik/common/spring/web/extended/template/chunk/Index.html"),
                "index.html", ResourceType.HTML, templateContent(loader.getResource(
                        "classpath:at/porscheinformatik/common/spring/web/extended/template/chunk/Index_expected.html")) } };
    }

    private String templateContent(Resource resource) {
        try (Reader in = new InputStreamReader(resource.getInputStream(), Charset.forName("UTF-8"))) {
            return IOUtils.toString(in);
        } catch (IOException ex) {
            throw new RuntimeException(ex);
        }
    }
}