namespace VirtualFS.Tests
{
    [TestClass]
    public class PathTests
    {
        [TestMethod]
        public virtual void TestPathCast()
        {
            Path p = "/test/path";

            Assert.IsNotNull(p);
            Assert.AreEqual("/test/path", (string)p);
        }

        [TestMethod]
        public virtual void TestPathDirectoryNotDirectory()
        {
            Assert.IsFalse(((Path)"/test/path").IsDirectory == ((Path)"/test/path/").IsDirectory);
        }

        [TestMethod]
        public virtual void TestPathAddPath()
        {
            Assert.AreEqual((Path)"/test/path/SomeFile.txt", ((Path)"/test/path/") + "SomeFile.txt");
        }

        [TestMethod]
        public virtual void TestPathExt()
        {
            Assert.AreEqual("txt", ((Path)"/test/path/SomeFile.txt").GetExtension());
        }

        [TestMethod]
        public virtual void TestPathParent()
        {
            Assert.IsNull(new Path().Parent);
            Assert.AreEqual(new Path(), ((Path)"/test/").Parent);
            Assert.AreEqual((Path)"/test/", ((Path)"/test/path/").Parent);
        }
        
        [TestMethod]
        public virtual void TestInvalidPath()
        {
            Assert.ThrowsException<InvalidOperationException>(() => new Path("test"));
        }
    }
}