public void HashContent_WithNullString()
{
Md5ResourceHasher hasher = new Md5ResourceHasher();
InvalidOperationException ex = Assert.Throws<InvalidOperationException>(() => hasher.HashContent(null));
Assert.AreEqual("Cannot hash null string.", ex.Message);
}
public void HashContent(string content, string expectedHash)
{
Md5ResourceHasher hasher = new Md5ResourceHasher();
string hash = hasher.HashContent(content);
Assert.AreEqual(expectedHash, hash);
}