org.commonjava.maven.ext.io.JSONIOTest.java Source code

Introduction

Here is the source code for org.commonjava.maven.ext.io.JSONIOTest.java

Source

/*
 * Copyright (C) 2012 Red Hat, Inc. (jcasey@redhat.com)
 *
 * 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.commonjava.maven.ext.io;

import com.jayway.jsonpath.DocumentContext;
import com.jayway.jsonpath.JsonPathException;
import org.apache.commons.io.FileUtils;
import org.commonjava.maven.ext.common.ManipulationException;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TemporaryFolder;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.File;
import java.io.IOException;
import java.net.URL;
import java.util.List;

import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotEquals;
import static org.junit.Assert.assertTrue;

public class JSONIOTest {
    private final Logger logger = LoggerFactory.getLogger(getClass());

    private JSONIO jsonIO = new JSONIO();
    private File npmFile;
    private File pluginFile;

    @Rule
    public TemporaryFolder tf = new TemporaryFolder();

    @Before
    public void setup() throws IOException {
        jsonIO = new JSONIO();
        URL resource = this.getClass().getResource("npm-shrinkwrap.json");
        npmFile = new File(resource.getFile());

        URL resource2 = this.getClass().getResource("amg-plugin-registry.json");
        pluginFile = new File(resource2.getFile());
    }

    @Test
    public void readFile() throws ManipulationException, IOException {
        DocumentContext o = jsonIO.parseJSON(npmFile);
        logger.debug("Read {} ", o.jsonString());
        logger.debug("File {}", FileUtils.readFileToString(npmFile));
        // They won't be equal as jsonString is not pretty printed.
        assertNotEquals(o.jsonString(), FileUtils.readFileToString(npmFile));
        assertTrue(o != null);
    }

    @Test
    public void writeFile() throws ManipulationException, IOException {
        DocumentContext doc = jsonIO.parseJSON(npmFile);

        File target = tf.newFile();

        jsonIO.writeJSON(target, doc.jsonString());

        assertTrue(FileUtils.contentEquals(npmFile, target));
    }

    @Test
    public void modifyFile() throws ManipulationException, IOException {
        String deletePath = "$..resolved";
        DocumentContext doc = jsonIO.parseJSON(npmFile);
        doc.delete(deletePath);

        File target = tf.newFile();

        jsonIO.writeJSON(target, doc.jsonString());

        assertFalse(FileUtils.contentEquals(npmFile, target));
    }

    @Test
    public void modifyPartialFile() throws ManipulationException, IOException {
        String deletePath = "$.dependencies.agent-base..resolved";
        DocumentContext doc = jsonIO.parseJSON(npmFile);
        doc.delete(deletePath);

        File target = tf.newFile();

        jsonIO.writeJSON(target, doc.jsonString());

        assertFalse(doc.jsonString().contains("https://registry.npmjs.org/agent-base/-/agent-base-2.0.1.tgz"));
        assertTrue(doc.jsonString().contains("resolved"));
    }

    @Test
    public void updateVersions() throws ManipulationException, IOException {
        String modifyPath = "$..version";
        DocumentContext doc = jsonIO.parseJSON(pluginFile);
        doc.set(modifyPath, "1.3.0.rebuild-1");

        logger.debug("Modified {} ", doc.jsonString());

        File target = tf.newFile();

        jsonIO.writeJSON(target, doc.jsonString());

        assertTrue(!doc.jsonString().contains("1.2.2-SNAPSHOT"));
        assertTrue(doc.jsonString().contains("1.3.0.rebuild-1"));
        assertFalse(FileUtils.contentEquals(pluginFile, target));
    }

    @Test
    public void updateURL() throws ManipulationException, IOException {
        String modifyPath = "$.repository.url";
        DocumentContext doc = jsonIO.parseJSON(pluginFile);
        doc.set(modifyPath, "https://maven.repository.redhat.com/ga/");

        logger.debug("Modified {} ", doc.jsonString());

        File target = tf.newFile();

        jsonIO.writeJSON(target, doc.jsonString());

        assertTrue(doc.jsonString().contains("https://maven.repository.redhat.com/ga/"));
        assertTrue(doc.jsonString().contains("1.2.2-SNAPSHOT"));
        assertFalse(FileUtils.contentEquals(pluginFile, target));
    }

    @Test(expected = ManipulationException.class)
    public void updateWithInvalidPath() throws ManipulationException, IOException {
        String modifyPath = "$.I.really.do.not.exist.repository.url";
        try {
            DocumentContext doc = jsonIO.parseJSON(pluginFile);
            doc.set(modifyPath, "https://maven.repository.redhat.com/ga/");
        } catch (JsonPathException e) {
            throw new ManipulationException("Caught JsonPath", e);
        }
    }

    @Test
    public void countMatches() throws ManipulationException, IOException {
        String pluginsPath = "$..plugins";
        String reposURLPath = "$.repository.url";
        try {
            DocumentContext doc = jsonIO.parseJSON(pluginFile);

            List o = doc.read(pluginsPath);
            assertTrue(o.size() == 1);

            o = doc.read(reposURLPath);
            assertTrue(o.size() == 1);
        } catch (JsonPathException e) {
            throw new ManipulationException("Caught JsonPath", e);
        }
    }
}