add test coverage for stuff in allmydata/utils

src/allmydata/test/test_utils.py

@@ -0,0 +1,109 @@
+
+def foo(): pass # keep the line number constant
+
+from twisted.trial import unittest
+
+from allmydata.util import bencode, idlib, humanreadable
+
+
+class IDLib(unittest.TestCase):
+    def test_b2a(self):
+        self.failUnlessEqual(idlib.b2a("\x12\x34"), "ci2a====")
+    def test_b2a_or_none(self):
+        self.failUnlessEqual(idlib.b2a_or_none(None), None)
+        self.failUnlessEqual(idlib.b2a_or_none("\x12\x34"), "ci2a====")
+    def test_a2b(self):
+        self.failUnlessEqual(idlib.a2b("ci2a===="), "\x12\x34")
+    def test_peerid(self):
+        # these are 160-bit numbers
+        peerid = "\x80" + "\x00" * 19
+        short = idlib.peerid_to_short_string(peerid)
+        self.failUnlessEqual(short, "qaaa")
+
+class NoArgumentException(Exception):
+    def __init__(self):
+        pass
+
+class HumanReadable(unittest.TestCase):
+    def test_repr(self):
+        hr = humanreadable.hr
+        self.failUnlessEqual(hr(foo), "<foo() at test_utils.py:2>")
+        self.failUnlessEqual(hr(self.test_repr),
+                             "<bound method HumanReadable.test_repr of <allmydata.test.test_utils.HumanReadable testMethod=test_repr>>")
+        self.failUnlessEqual(hr(1L), "1")
+        self.failUnlessEqual(hr(10**40),
+                             "100000000000000000...000000000000000000")
+        self.failUnlessEqual(hr(self), "<allmydata.test.test_utils.HumanReadable testMethod=test_repr>")
+        self.failUnlessEqual(hr([1,2]), "[1, 2]")
+        self.failUnlessEqual(hr({1:2}), "{1:2}")
+        try:
+            raise RuntimeError
+        except Exception, e:
+            self.failUnlessEqual(hr(e), "<RuntimeError: ()>")
+        try:
+            raise RuntimeError("oops")
+        except Exception, e:
+            self.failUnlessEqual(hr(e), "<RuntimeError: 'oops'>")
+        try:
+            raise NoArgumentException
+        except Exception, e:
+            self.failUnlessEqual(hr(e), "<NoArgumentException>")
+
+
+class MyList(list):
+    pass
+
+class Bencode(unittest.TestCase):
+    def test_bencode(self):
+        e = bencode.bencode
+        self.failUnlessEqual(e(4), "i4e")
+        self.failUnlessEqual(e([1,2]), "li1ei2ee")
+        self.failUnlessEqual(e(MyList([1,2])), "li1ei2ee")
+        self.failUnlessEqual(e({1:2}), "di1ei2ee")
+        self.failUnlessEqual(e(u"a"), "u1:a")
+        self.failUnlessEqual(e([True,False]), "lb1b0e")
+        self.failUnlessEqual(e(1.5), "f1.5e")
+        self.failUnlessEqual(e("foo"), "3:foo")
+        d = bencode.bdecode
+        self.failUnlessEqual(d("li1ei2ee"), [1,2])
+        self.failUnlessEqual(d("u1:a"), u"a")
+        self.failUnlessRaises(ValueError, d, "u10:short")
+        self.failUnlessEqual(d("lb1b0e"), [True,False])
+        self.failUnlessRaises(ValueError, d, "b2")
+        self.failUnlessEqual(d("f1.5e"), 1.5)
+        self.failUnlessEqual(d("3:foo"), "foo")
+        self.failUnlessRaises(ValueError, d,
+                              "38:When doing layout, always plan ah")
+        # ooh! fascinating! bdecode requires string keys! I think this ought
+        # to be changed
+        #self.failUnlessEqual(d("di1ei2ee"), {1:2})
+        self.failUnlessEqual(d("d1:ai2eu1:bi3ee"), {"a":2, u"b":3})
+        self.failUnlessRaises(ValueError, d, "di1ei2ee")
+        self.failUnlessRaises(ValueError, d, "d1:ai1e1:ai2ee")
+
+        self.failUnlessRaises(ValueError, d, "i1ei2e")
+
+        # now run all the module's builtin tests
+        bencode.test_decode_raw_string()
+        bencode.test_encode_and_decode_unicode_results_in_unicode_type()
+        bencode.test_encode_and_decode_unicode_at_least_preserves_the_content_even_if_it_flattens_the_type()
+        bencode.test_dict_forbids_non_string_key()
+        bencode.test_dict_forbids_key_repeat()
+        bencode.test_empty_dict()
+        bencode.test_dict_allows_unicode_keys()
+        bencode.test_ValueError_in_decode_unknown()
+        bencode.test_encode_and_decode_none()
+        bencode.test_encode_and_decode_long()
+        bencode.test_encode_and_decode_int()
+        bencode.test_encode_and_decode_float()
+        bencode.test_encode_and_decode_bool()
+        #bencode.test_decode_noncanonical_int()
+        bencode.test_encode_and_decode_dict()
+        bencode.test_encode_and_decode_list()
+        bencode.test_encode_and_decode_tuple()
+        bencode.test_encode_and_decode_empty_dict()
+        bencode.test_encode_and_decode_complex_object()
+        bencode.test_unfinished_list()
+        bencode.test_unfinished_dict()
+        bencode.test_unsupported_type()
+