public void hash_by_modified_is_repeatable()
{
var file1 = "a.txt";
var file2 = "b.txt";
new FileSystem().WriteStringToFile(file1, "something");
new FileSystem().WriteStringToFile(file2, "else");
file1.GetModifiedDateFileText().ShouldBe(file1.GetModifiedDateFileText());
file2.GetModifiedDateFileText().ShouldBe(file2.GetModifiedDateFileText());
file2.GetModifiedDateFileText().ShouldNotBe(file1.GetModifiedDateFileText());
file1.HashByModifiedDate().ShouldBe(file1.HashByModifiedDate());
file2.HashByModifiedDate().ShouldBe(file2.HashByModifiedDate());
file2.HashByModifiedDate().ShouldNotBe(file1.HashByModifiedDate());
}