3 def my_global_method(a,b)
7 class AboutMethods < EdgeCase::Koan
9 def test_calling_global_methods
10 assert_equal __(5), my_global_method(2,3)
13 def test_calling_global_methods_without_parenthesis
14 result = my_global_method 2, 3
15 assert_equal __(5), result
18 # (NOTE: We are Using eval below because the example code is
19 # considered to be syntactically invalid).
20 def test_sometimes_missing_parenthesis_are_ambiguous
22 eval "assert_equal 5, my_global_method(2, 3)" # REMOVE CHECK
25 eval "assert_equal 5, my_global_method 2, 3" # ENABLE CHECK
30 # Ruby doesn't know if you mean:
32 # assert_equal(5, my_global_method(2), 3)
34 # assert_equal(5, my_global_method(2, 3))
36 # Rewrite the eval string to continue.
40 # NOTE: wrong number of argument is not a SYNTAX error, but a
42 def test_calling_global_methods_with_wrong_number_of_arguments
43 exception = assert_raise(___(ArgumentError)) do
46 assert_match(/#{__("wrong number of arguments")}/, exception.message)
48 exception = assert_raise(___(ArgumentError)) do
49 my_global_method(1,2,3)
51 assert_match(/#{__("wrong number of arguments")}/, exception.message)
54 # ------------------------------------------------------------------
56 def method_with_defaults(a, b=:default_value)
60 def test_calling_with_default_values
61 assert_equal [1, __(:default_value)], method_with_defaults(1)
62 assert_equal [1, __(2)], method_with_defaults(1, 2)
65 # ------------------------------------------------------------------
67 def method_with_var_args(*args)
71 def test_calling_with_variable_arguments
72 assert_equal __([]), method_with_var_args
73 assert_equal __([:one]), method_with_var_args(:one)
74 assert_equal __([:one, :two]), method_with_var_args(:one, :two)
77 # ------------------------------------------------------------------
79 def method_with_explicit_return
82 :anoher_non_return_value
85 def test_method_with_explicit_return
86 assert_equal __(:return_value), method_with_explicit_return
89 # ------------------------------------------------------------------
91 def method_without_explicit_return
96 def test_method_without_explicit_return
97 assert_equal __(:return_value), method_without_explicit_return
100 # ------------------------------------------------------------------
102 def my_same_class_method(a, b)
106 def test_calling_methods_in_same_class
107 assert_equal __(12), my_same_class_method(3,4)
110 def test_calling_methods_in_same_class_with_explicit_receiver
111 assert_equal __(12), self.my_same_class_method(3,4)
114 # ------------------------------------------------------------------
116 def my_private_method
119 private :my_private_method
121 def test_calling_private_methods_without_receiver
122 assert_equal __("a secret"), my_private_method
125 def test_calling_private_methods_with_an_explicit_receiver
126 exception = assert_raise(___(NoMethodError)) do
127 self.my_private_method
129 assert_match /#{__("private method `my_private_method' called ")}/, exception.message
132 # ------------------------------------------------------------------
146 def test_calling_methods_in_other_objects_require_explicit_receiver
148 assert_equal __("Fido"), rover.name
151 def test_calling_private_methods_in_other_objects
153 assert_raise(___(NoMethodError)) do