 
 let performPythonIncompatibleTests = true
 if performPythonIncompatibleTests {
+    // Handling of "\r\n" not compatible with Python.
+    assert("\r\n\t"[0] == "\r\n")
+    assert("\r\n\t"[1] == "\t")
+
     // dict
     assert(!dict<str, str>())
     assert(["foo": "bar"])

assert(!set([1, 2, 3]).isdisjoint(set([3, 4, 5])))
assert(set([1, 2, 3]).isdisjoint(set([4, 8, 16])))

// str
assert(str(123) == "123")

// str (positive and negative indexing)
assert("foo"[-1] == "o")

// list
assert(list([1, 2, 3]) == [1, 2, 3])
assert(list([1, 2, 3]).count(1) == 1)

// list (truthness)
assert([1, 2, 3])
assert([1, 2])
assert([1])

// list.count
assert([1, 2, 2, 3, 3, 3].count(1) == 1)
