package org.webslinger.commons.vfs.tests;

 import org.apache.commons.vfs.FileObject;

 import org.apache.commons.vfs.FileSystem;

 import org.webslinger.commons.vfs.operations.SymlinkOperation;

 public class SymlinkTester extends OperationTester<SymlinkOperation> {

     public SymlinkTester(FileObject root) {

         super(root, SymlinkOperation.class);

     }

     public void doTest() throws Exception {

         FileSystem fs = root.getFileSystem();

         getOperation(fs, "symlinks/filelink1").setSymlink("../files/sourcefile1");

         getOperation(fs, "symlinks/filelink2").setSymlink("filelink1");

         FileObject[] children = root.resolveFile("symlinks").getChildren();

         assertNotNull("getChildren is not null", children);

         assertEquals("child count in symlinks", 2, children.length);

         for (FileObject child: children) {

             String baseName = child.getName().getBaseName();

             if (baseName.equals("filelink1")) {

             } else if (baseName.equals("filelink2")) {

             } else {

                 fail("Unknown child in list(" + baseName + ")");

             }

         }

         assertFalse("filelink1 does not exist", root.resolveFile("symlinks/filelink1").exists());

         assertFalse("filelink2 does not exist", root.resolveFile("symlinks/filelink2").exists());

         TestUtil.writeString(root.resolveFile("files/sourcefile1"), "sourcefile1 content");

         TestUtil.writeString(root.resolveFile("files/sourcefile2"), "sourcefile2 content");

         root.resolveFile("symlinks/filelink1").refresh();

         assertTrue("filelink1 exists", root.resolveFile("symlinks/filelink1").exists());

         root.resolveFile("symlinks/filelink2").refresh();

         assertTrue("filelink1 exists", root.resolveFile("symlinks/filelink2").exists());

         assertEquals("filelink1 content", "sourcefile1 content", TestUtil.readString(root.resolveFile("symlinks/filelink1")));

         assertEquals("filelink2 content", "sourcefile1 content", TestUtil.readString(root.resolveFile("symlinks/filelink2")));

         getOperation(fs, "symlinks/filelink2").setSymlink("../files/sourcefile2");

         assertEquals("filelink1 content", "sourcefile1 content", TestUtil.readString(root.resolveFile("symlinks/filelink1")));

         assertEquals("filelink2 content", "sourcefile2 content", TestUtil.readString(root.resolveFile("symlinks/filelink2")));

         getOperation(fs, "symlinks/filelink1").setSymlink(null);

         assertFalse("filelink1 does not exist", root.resolveFile("symlinks/filelink1").exists());

         children = root.resolveFile("symlinks").getChildren();

         assertNotNull("getChildren is not null", children);

         assertEquals("child count in symlinks", 1, children.length);

         assertEquals("only child is filelink2", "filelink2", children[0].getName().getBaseName());

     }

 }