org.xchain.namespaces.csv.CsvXChainTestCase.java Source code

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Here is the source code for org.xchain.namespaces.csv.CsvXChainTestCase.java

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/**
 *    Copyright 2011 meltmedia
 *
 *    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.xchain.namespaces.csv;

import static org.junit.Assert.*;

import java.io.ByteArrayOutputStream;

import org.apache.commons.jxpath.JXPathContext;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
import org.xchain.Catalog;
import org.xchain.Command;
import org.xchain.framework.factory.CatalogFactory;
import org.xchain.framework.lifecycle.Lifecycle;

/**
 * @author John Trimble
 */
public class CsvXChainTestCase {
    private static final String CATALOG_URI = "resource://context-class-loader/org/xchain/namespaces/csv/csv-test-basic.xchain";

    @BeforeClass
    public static void setupLifecycle() throws Exception {
        Lifecycle.startLifecycle();
    }

    @AfterClass
    public static void tearDownLifecycle() throws Exception {
        Lifecycle.stopLifecycle();
    }

    protected void declareTestVariables(JXPathContext context) {
        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
        context.getVariables().declareVariable("output", outputStream);
        context.getVariables().declareVariable("double-quote", "\"");
        context.getVariables().declareVariable("single-quote", "'");
    }

    protected JXPathContext createTestContext() {
        JXPathContext context = JXPathContext.newContext(new Object());
        declareTestVariables(context);
        return context;
    }

    protected String getOutputString(JXPathContext context) {
        return ((ByteArrayOutputStream) context.getVariables().getVariable("output")).toString();
    }

    protected JXPathContext runTestChain(String testChain) throws Exception {
        Catalog catalog = CatalogFactory.getInstance().getCatalog(CATALOG_URI);
        Command command = catalog.getCommand(testChain);
        JXPathContext context = createTestContext();
        command.execute(context);
        return context;
    }

    @Test
    public void testBasic() throws Exception {
        JXPathContext context = runTestChain("test00");
        assertEquals(getOutputString(context), "\"cell 1\",\"cell 2\"\n\"cell 3\",\"cell 4\"\n");
    }

    @Test
    public void testEscape() throws Exception {
        JXPathContext context = runTestChain("test01");
        assertEquals(getOutputString(context),
                "\"a double quote\"\"\",\"a single quote'\",\"\"\n\"Comma ,\",\"a non column\"\",\"\"another non column\",\"just another cell\"\n");
    }

    @Test
    public void testVariableRowLengths() throws Exception {
        JXPathContext context = runTestChain("test02");
        assertEquals(getOutputString(context), "\"00\"\n\"10\",\"11\"\n\"20\",\"21\",\"22\"\n");
    }

    @Test
    public void testObjectStringCoercion() throws Exception {
        JXPathContext context = runTestChain("test03");
        assertEquals(getOutputString(context), "\"5\"\n");
    }
}