public void TestCreation()
{
string testPath = Path.Combine(Path.GetTempPath(), "DataDirTests", "creation");
var d1 = new DataDir(testPath);
Assert.AreEqual(testPath, d1.Path);
Assert.AreEqual(testPath, d1.ToString());
var d2 = new DataDir(testPath);
Assert.IsTrue(d1.Equals(d2));
Assert.IsTrue(d2.Equals(d1));
var d3 = new DataDir(Path.Combine(Path.GetTempPath(), "DataDirTests", "other"));
Assert.IsFalse(d1.Equals(d3));
Assert.IsFalse(d3.Equals(d1));
Assert.ThrowsException <ArgumentException>(() => new DataDir(null));
Assert.ThrowsException <ArgumentException>(() => new DataDir(string.Empty));
Assert.ThrowsException <ArgumentException>(() => new DataDir(testPath + Path.GetInvalidPathChars()[0]));
}
