RubyMimeResolverTest.java

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package org.netbeans.modules.ruby;

import java.io.IOException;
import java.io.OutputStream;
import org.netbeans.junit.NbTestCase;
import org.openide.filesystems.FileObject;
import org.openide.filesystems.FileUtil;

/**
 * @author Tor Norbye, Jiri Skrivanek
 */
public class RubyMimeResolverTest extends NbTestCase {

    public RubyMimeResolverTest(String testName) {
        super(testName);
    }

    public void testRubyResolver() throws IOException {
        FileObject fo = FileUtil.createMemoryFileSystem().getRoot().createData("ruby");
        String[] validHeaders = {
            "#!/usr/bin/ruby",
            "#!/usr/bin/ruby1.8",
            "#!/usr/bin/jruby",
            "#! /usr/bin/ruby",
            "#! /usr/bin/ruby\n",
            "#! /usr/bin/ruby.exe",
            "#! /usr/bin/ruby.exe ",
            "#!C:\\programs\\ruby.exe",
            "#!C:\\programs\\ruby.exe",
            "#!/Users/tor/dev/ruby/install/ruby-1.8.5/bin/ruby\n",
            "#!/space/ruby/ruby-1.8.6-p110/bin/ruby1.8.6-p110",
            "#!/usr/bin/env jruby -J-Xmx512M",
            "#!/usr/bin/env ruby",
            "#!/usr/bin/env jruby",
            "#!/usr/bin/env.exe jruby",
            "#!D:/Development/Ruby/ruby-1.8.6-dist/bin/ruby"
        };
        String[] invalidHeaders = {
            "# !C:\\programs\\ruby.exe",
            "#!/bin/sh",
            //"#!/bin/rubystuff/bin/ksh", // mistakenly resolved as ruby file
            "#!/usr/bin/rub",
            "#!/usr/bin/",
            "#! /usr/bin/rub\ny",
            //"#! /usr/b\nin/ruby", // mistakenly resolved as ruby file
            "#/usr/bin/ruby",
            "#!/usr/bin/env.exe jrub"
        };
        for (String header : validHeaders) {
            assertHeader(fo, header, "text/x-ruby");
        }
        for (String header : invalidHeaders) {
            assertHeader(fo, header, "content/unknown");
        }
        fo = FileUtil.createMemoryFileSystem().getRoot().createData("rakefile");
        assertEquals("rakefile should be resolved.", "text/x-ruby", fo.getMIMEType());
        fo = FileUtil.createMemoryFileSystem().getRoot().createData("Rakefile");
        assertEquals("rakefile should be resolved.", "text/x-ruby", fo.getMIMEType());
        fo = FileUtil.createMemoryFileSystem().getRoot().createData("a.rb");
        assertEquals("All .rb should be resolved.", "text/x-ruby", fo.getMIMEType());
    }

    private void assertHeader(FileObject fo, String header, String expectedMimeType) throws IOException {
        OutputStream os = fo.getOutputStream();
        os.write(header.getBytes());
        os.close();
        assertEquals("Header " + header + " wrongly resolved.", expectedMimeType, fo.getMIMEType());
    }
}