com.doitnext.swing.widgets.json.JSONJTreeNodeTest.java Source code

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Here is the source code for com.doitnext.swing.widgets.json.JSONJTreeNodeTest.java

Source

package com.doitnext.swing.widgets.json;

import java.io.InputStream;
import java.io.StringWriter;
import java.util.Arrays;
import java.util.Collection;

import org.apache.commons.io.IOUtils;
import org.junit.Assert;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameters;

import com.google.gson.JsonElement;
import com.google.gson.JsonParser;

/**
 * @author Stephen Owens
 *
 *
 * <p>
 * Copyright 2011 Stephen P. Owens : steve@doitnext.com
 * </p>
 * <p>
 * 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
 * </p>
 * <p>
 *   http://www.apache.org/licenses/LICENSE-2.0
 * </p>
 * <p>
 * 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.
 * </p>
 */
@RunWith(value = Parameterized.class)
public class JSONJTreeNodeTest {
    private final String fileName;
    private final Exception expectedError;

    public JSONJTreeNodeTest(String fileName, Exception expectedError) {
        this.fileName = fileName;
        this.expectedError = expectedError;
    }

    @Parameters
    public static Collection<Object[]> data() {
        Object[][] data = new Object[][] { { "com/doitnext/swing/widgets/json/array-of-ints.txt", null },
                { "com/doitnext/swing/widgets/json/array-of-strings.txt", null },
                { "com/doitnext/swing/widgets/json/empty-array.txt", null },
                { "com/doitnext/swing/widgets/json/simple-object.txt", null },
                { "com/doitnext/swing/widgets/json/array-of-arrays.txt", null } };
        return Arrays.asList(data);
    }

    @Test
    public void pushTest() throws Exception {
        InputStream resource = null;
        StringWriter sw = null;
        try {
            resource = this.getClass().getClassLoader().getResourceAsStream(fileName);
            sw = new StringWriter();
            IOUtils.copy(resource, sw);
            String json = sw.toString();
            sw.close();
            sw = null;
            resource.close();
            resource = null;
            JsonElement rootElt = new JsonParser().parse(json);
            JSONJTreeNode root = new JSONJTreeNode(null, -1, rootElt);

            JsonElement converted = root.asJsonElement();
            String expected = rootElt.toString();
            String actual = converted.toString();

            Assert.assertEquals("Json does not match", expected, actual);
            if (expectedError != null)
                throw new IllegalArgumentException(
                        "We didnt' get an " + expectedError.getClass().getName() + " exception as expected.",
                        expectedError);

        } catch (Exception e) {
            if (!e.getClass().isInstance(expectedError))
                throw e;
        } finally {
            if (resource != null)
                resource.close();
            if (sw != null)
                sw.close();
        }
    }
}