package org.opensolaris.opengrok.analysis.php;

import static org.junit.Assert.assertEquals;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.StringReader;
import java.io.StringWriter;
import java.io.Writer;
import java.util.ArrayList;

import org.junit.Test;
import org.opensolaris.opengrok.analysis.XrefWriter;

/**
 * Tests the {@link PhpXref} class.
 * @author Gustavo Lopes
 */
public class PhpXrefTest {
    static InputStream getTestFile(String name) throws FileNotFoundException {
        File f = new File("test/" 
            + PhpXrefTest.class.getPackage().getName().replace('.', '/')
            + "/" + name);
        return new FileInputStream(f);
    }
    /**
     * Xref output test for a sample string.
     * @throws IOException
     */
    @SuppressWarnings("static-method")
    @Test
    public void basicTest() throws IOException {
        String s = "<?php foo bar";
        StringWriter w = new StringWriter();
        XrefWriter out = new XrefWriter(w);
        PhpAnalyzer.writeXref(new StringReader(s), out, null, null, null);
        assertEquals("<div id='lines'\n><div><strong>&lt;"
            + "?php</strong> <a href=\"/source/s?defs=foo\">foo</a> "
            + "<a href=\"/source/s?defs=bar\">bar</a></div\n></div\n>",
            w.toString());
        out.close();
    }

    /**
     * Xref output test for {@code sample.php}.
     * @throws IOException
     */
    @SuppressWarnings("static-method")
    @Test
    public void sampleTest() throws IOException {
        // produce
        InputStreamReader in = 
            new InputStreamReader(getTestFile("sample.php"), "UTF-8");
        Writer w = new StringWriter();
        XrefWriter out = new XrefWriter(w);
        PhpAnalyzer.writeXref(in, out, null, null, null);
        out.close();
        in.close();
        
        // get expected
        in = new InputStreamReader(getTestFile("sampleXrefRes.html"), "UTF-8");
        ArrayList<String> expected = new ArrayList<String>(64);
        BufferedReader bir = new BufferedReader(in);
        String s;
        while ((s = bir.readLine()) != null) {
            expected.add(s);
        }
        bir.close();
        
        // compare
        String gotten[] = w.toString().split("\n");
        assertEquals(expected.size(), gotten.length);
        for (int i = 0; i < gotten.length; i++) {
            assertEquals("line "+(i+1), expected.get(i).trim(), gotten[i].trim());
        }
    }
}