1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
$:.unshift File.join(File.dirname(__FILE__),"..","lib")
require 'minitest/autorun'
require 'rgen/array_extensions'
class ArrayExtensionsTest < Minitest::Test
def test_element_methods
c = Struct.new("SomeClass",:name,:age)
a = []
a << c.new('MyName',33)
a << c.new('YourName',22)
assert_equal ["MyName", "YourName"], a >> :name
assert_raises NoMethodError do
a.name
end
assert_equal [33, 22], a>>:age
assert_raises NoMethodError do
a.age
end
# unfortunately, any method can be called on an empty array
assert_equal [], [].age
end
class MMBaseClass < RGen::MetamodelBuilder::MMBase
has_attr 'name'
has_attr 'age', Integer
end
def test_with_mmbase
e1 = MMBaseClass.new
e1.name = "MyName"
e1.age = 33
e2 = MMBaseClass.new
e2.name = "YourName"
e2.age = 22
a = [e1, e2]
assert_equal ["MyName", "YourName"], a >> :name
assert_equal ["MyName", "YourName"], a.name
assert_equal [33, 22], a>>:age
assert_equal [33, 22], a.age
# put something into the array that is not an MMBase
a << "not a MMBase"
# the dot operator will tell that there is something not a MMBase
assert_raises StandardError do
a.age
end
# the >> operator will try to call the method anyway
assert_raises NoMethodError do
a >> :age
end
end
def test_hash_square
assert_equal({}, Hash[[]])
end
def test_to_str_on_empty_array
assert_raises NoMethodError do
[].to_str
end
end
end
|
