package jalview.io;

import static org.testng.Assert.assertEquals;

import jalview.bin.Cache;

import org.junit.Assert;
import org.testng.annotations.Test;

public class FileLoaderTest
{

  @Test(groups = { "Network" })
  public void testDownloadStructuresIfInputFromURL()
  {
    String urlFile = "http://www.jalview.org/builds/develop/examples/3W5V.pdb";
    FileLoader fileLoader = new FileLoader();
    fileLoader.LoadFileWaitTillLoaded(urlFile, DataSourceType.URL,
            FileFormat.PDB);
    Assert.assertNotNull(fileLoader.file);
    // The FileLoader's file is expected to be same as the original URL.
    Assert.assertEquals(urlFile, fileLoader.file);
    // Data source type expected to be DataSourceType.URL
    Assert.assertEquals(DataSourceType.URL, fileLoader.protocol);
  }

  @Test(groups = "Functional")
  public void testUpdateRecentlyOpened()
  {
    // ensure properties file is read-only
    Cache.loadProperties("test/jalview/io/testProps.jvprops");

    String recent = "RECENT_FILE";
    Cache.removeProperty(recent);

    String prop = FileLoader.updateRecentlyOpened("a/b/c",
            DataSourceType.FILE);
    assertEquals(prop, "a/b/c");

    prop = FileLoader.updateRecentlyOpened("d/e/f", DataSourceType.FILE);
    assertEquals(prop, "d/e/f\ta/b/c");

    // revisiting a file moves it to the top of the list
    prop = FileLoader.updateRecentlyOpened("a/b/c", DataSourceType.FILE);
    assertEquals(prop, "a/b/c\td/e/f");
    
    // history list is limited to the most recent 11 items
    for (int i = 0; i < 20; i++)
    {
      prop = FileLoader.updateRecentlyOpened(String.format("%d.fa", i),
              DataSourceType.FILE);
    }
    assertEquals(prop,
            "19.fa\t18.fa\t17.fa\t16.fa\t15.fa\t14.fa\t13.fa\t12.fa\t11.fa\t10.fa\t9.fa");
  }
}