com.grantingersoll.opengrok.analysis.csharp.TestCSharpSymbolTokenizer.java Source code

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package com.grantingersoll.opengrok.analysis.csharp;

import com.grantingersoll.opengrok.analysis.SymbolTokenizer;
import org.apache.commons.io.IOUtils;
import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.analysis.BaseTokenStreamTestCase;
import org.apache.lucene.analysis.Tokenizer;
import org.junit.Test;

import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.nio.charset.StandardCharsets;

public class TestCSharpSymbolTokenizer extends BaseTokenStreamTestCase {
    private Analyzer analyzer;

    @Override
    public void setUp() throws Exception {
        super.setUp();
        analyzer = new Analyzer() {
            @Override
            protected TokenStreamComponents createComponents(String fieldName) {
                Tokenizer tokenizer = new CSharpSymbolTokenizer(newAttributeFactory());
                return new TokenStreamComponents(tokenizer);
            }
        };
    }

    @Override
    public void tearDown() throws Exception {
        analyzer.close();
        super.tearDown();
    }

    @Test
    public void testHexLiteral() throws Exception {
        String input = "0xFFFF";
        String[] output = new String[] {}; // zero output tokens
        assertAnalyzesTo(analyzer, input, output);
    }

    @Test
    public void test() throws Exception {
        String input;
        try (InputStream stream = TestCSharpSymbolTokenizer.class.getResourceAsStream("Sample.cs");
                Reader in = new InputStreamReader(stream, StandardCharsets.UTF_8)) {
            input = IOUtils.toString(in);
        }
        String[] output = new String[] { "System", //// using System;
                ////
                "MyNamespace", //// namespace MyNamespace
                //// {
                ////     /// <summary>
                ////     /// summary
                ////     /// </summary>
                "Tag", ////     [Tag]
                "TopClass", ////     class TopClass {
                "M1", ////         public int M1() { }
                ////
                "M2", ////         public static void M2() {
                ////             //public static int MERR() {}
                ////         }
                ////
                ////         /// <summary>
                ////         /// sum
                ////         /// </summary>
                "M3", ////         public void M3()
                ////         {
                ////             /* hi
                ////                 public static int MERR() {
                ////                 }
                ////             */
                ////         }
                ////
                "Tag", ////         [Tag]
                "T", "M4", "T", "T", "p", "T", ////         private T M4<T>(T p) where T : new()
                ////         {
                ////         }
                ////
                "InnerClass", ////         public class InnerClass
                ////         {
                "M5", "x", ////             private string M5(int x) {
                           ////                 return null;
                           ////             }
                           ////         }
                           ////
                           ////     {
                           ////
                           //// }
                           ////
        };
        assertAnalyzesTo(analyzer, input, output);
    }

    @Test
    public void testMimeType() {
        SymbolTokenizer tokenizer = new CSharpSymbolTokenizer(newAttributeFactory());
        assertEquals("text/x-csharp", tokenizer.getMimeType());
    }

    @Test
    public void testSourceCodeLanguage() {
        SymbolTokenizer tokenizer = new CSharpSymbolTokenizer(newAttributeFactory());
        assertEquals("C#", tokenizer.getSourceCodeLanguage());
    }
}