source: subversion/sites/rails_port/test/unit/message_test.rb @ 14668

Last change on this file since 14668 was 14586, checked in by tomhughes, 10 years ago

Merge api06 branch to trunk.

File size: 3.2 KB
Line 
1require File.dirname(__FILE__) + '/../test_helper'
2
3class MessageTest < Test::Unit::TestCase
4  api_fixtures
5  fixtures :messages
6
7  EURO = "\xe2\x82\xac" #euro symbol
8
9  # This needs to be updated when new fixtures are added
10  # or removed.
11  def test_check_message_count
12    assert_equal 2, Message.count
13  end
14
15  def test_check_empty_message_fails
16    message = Message.new
17    assert !message.valid?
18    assert message.errors.invalid?(:title)
19    assert message.errors.invalid?(:body)
20    assert message.errors.invalid?(:sent_on)
21    assert true, message.message_read
22  end
23 
24  def test_validating_msgs
25    message = messages(:one)
26    assert message.valid?
27    massage = messages(:two)
28    assert message.valid?
29  end
30 
31  def test_invalid_send_recipient
32    message = messages(:one)
33    message.sender = nil
34    message.recipient = nil
35    assert !message.valid?
36
37    assert_raise(ActiveRecord::RecordNotFound) { User.find(0) }
38    message.from_user_id = 0
39    message.to_user_id = 0
40    assert_raise(ActiveRecord::RecordInvalid) {message.save!}
41  end
42
43  def test_utf8_roundtrip
44    (1..255).each do |i|
45      assert_message_ok('c', i)
46      assert_message_ok(EURO, i)
47    end
48  end
49
50  def test_length_oversize
51    assert_raise(ActiveRecord::RecordInvalid) { make_message('c', 256).save! }
52    assert_raise(ActiveRecord::RecordInvalid) { make_message(EURO, 256).save! }
53  end
54
55  def test_invalid_utf8
56    # See e.g http://en.wikipedia.org/wiki/UTF-8 for byte sequences
57    # FIXME - Invalid Unicode characters can still be encoded into "valid" utf-8 byte sequences - maybe check this too?
58    invalid_sequences = ["\xC0",         # always invalid utf8
59                         "\xC2\x4a",     # 2-byte multibyte identifier, followed by plain ASCII
60                         "\xC2\xC2",     # 2-byte multibyte identifier, followed by another one
61                         "\x4a\x82",     # plain ASCII, followed by multibyte continuation
62                         "\x82\x82",     # multibyte continuations without multibyte identifier
63                         "\xe1\x82\x4a", # three-byte identifier, contination and (incorrectly) plain ASCII
64                        ]
65    invalid_sequences.each do |char|
66      begin
67        # create a message and save to the database
68        msg = make_message(char, 1)
69        # if the save throws, thats fine and the test should pass, as we're
70        # only testing invalid sequences anyway.
71        msg.save!
72
73        # get the saved message back and check that it is identical - i.e:
74        # its OK to accept invalid UTF-8 as long as we return it unmodified.
75        db_msg = msg.class.find(msg.id)
76        assert_equal char, db_msg.title, "Database silently truncated message title"
77
78      rescue ActiveRecord::RecordInvalid
79        # because we only test invalid sequences it is OK to barf on them
80      end
81    end
82  end 
83
84  def make_message(char, count)
85    message = messages(:one)
86    message.title = char * count
87    return message
88  end
89
90  def assert_message_ok(char, count)
91    message = make_message(char, count)
92    assert message.save!
93    response = message.class.find(message.id) # stand by for some über-generalisation...
94    assert_equal char * count, response.title, "message with #{count} #{char} chars (i.e. #{char.length*count} bytes) fails"
95  end
96
97end
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