com.github.fge.jsonpatch.mergepatch.NonObjectMergePatchTest.java Source code

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Here is the source code for com.github.fge.jsonpatch.mergepatch.NonObjectMergePatchTest.java

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/*
 * Copyright (c) 2014, Francis Galiegue (fgaliegue@gmail.com)
 *
 * This software is dual-licensed under:
 *
 * - the Lesser General Public License (LGPL) version 3.0 or, at your option, any
 *   later version;
 * - the Apache Software License (ASL) version 2.0.
 *
 * The text of this file and of both licenses is available at the root of this
 * project or, if you have the jar distribution, in directory META-INF/, under
 * the names LGPL-3.0.txt and ASL-2.0.txt respectively.
 *
 * Direct link to the sources:
 *
 * - LGPL 3.0: https://www.gnu.org/licenses/lgpl-3.0.txt
 * - ASL 2.0: http://www.apache.org/licenses/LICENSE-2.0.txt
 */

package com.github.fge.jsonpatch.mergepatch;

import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.node.JsonNodeFactory;
import com.github.fge.jackson.JsonLoader;
import com.github.fge.jackson.JsonNumEquals;
import com.github.fge.jsonpatch.JsonPatchException;
import com.github.fge.jsonpatch.JsonPatchMessages;
import com.github.fge.msgsimple.bundle.MessageBundle;
import com.github.fge.msgsimple.load.MessageBundles;
import com.google.common.base.Equivalence;
import com.google.common.collect.Lists;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;

import java.io.IOException;
import java.util.Iterator;
import java.util.List;

import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertTrue;
import static org.testng.Assert.fail;

public final class NonObjectMergePatchTest {
    private static final Equivalence<JsonNode> EQUIVALENCE = JsonNumEquals.getInstance();
    private static final MessageBundle BUNDLE = MessageBundles.getBundle(JsonPatchMessages.class);

    private final JsonNode testData;

    public NonObjectMergePatchTest() throws IOException {
        final String resource = "/jsonpatch/mergepatch/patch-nonobject.json";
        testData = JsonLoader.fromResource(resource);
    }

    @Test
    public void patchYellsOnNullInput() throws JsonPatchException {
        try {
            JsonMergePatch.fromJson(JsonNodeFactory.instance.arrayNode()).apply(null);
            fail("No exception thrown!");
        } catch (NullPointerException e) {
            assertEquals(e.getMessage(), BUNDLE.getMessage("jsonPatch.nullValue"));
        }
    }

    @DataProvider
    public Iterator<Object[]> getData() {
        final List<Object[]> list = Lists.newArrayList();

        for (final JsonNode node : testData)
            list.add(new Object[] { node.get("patch"), node.get("victim") });

        return list.iterator();
    }

    @Test(dataProvider = "getData")
    public void patchingWorksAsExpected(final JsonNode input, final JsonNode victim) throws JsonPatchException {
        final JsonMergePatch patch = JsonMergePatch.fromJson(input);
        final JsonNode patched = patch.apply(victim);

        assertTrue(EQUIVALENCE.equivalent(input, patched));
    }
}