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
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
|
# frozen_string_literal: false
require 'test/unit'
class TestCall < Test::Unit::TestCase
def aaa(a, b=100, *rest)
res = [a, b]
res += rest if rest
return res
end
def test_call
assert_raise(ArgumentError) {aaa()}
assert_raise(ArgumentError) {aaa}
assert_equal([1, 100], aaa(1))
assert_equal([1, 2], aaa(1, 2))
assert_equal([1, 2, 3, 4], aaa(1, 2, 3, 4))
assert_equal([1, 2, 3, 4], aaa(1, *[2, 3, 4]))
end
def test_callinfo
bug9622 = '[ruby-core:61422] [Bug #9622]'
o = Class.new do
def foo(*args)
bar(:foo, *args)
end
def bar(name)
name
end
end.new
e = assert_raise(ArgumentError) {o.foo(100)}
assert_nothing_raised(ArgumentError) {o.foo}
assert_raise_with_message(ArgumentError, e.message, bug9622) {o.foo(100)}
end
def test_safe_call
s = Struct.new(:x, :y, :z)
o = s.new("x")
assert_equal("X", o.x&.upcase)
assert_nil(o.y&.upcase)
assert_equal("x", o.x)
o&.x = 6
assert_equal(6, o.x)
o&.x *= 7
assert_equal(42, o.x)
o&.y = 5
assert_equal(5, o.y)
o&.z ||= 6
assert_equal(6, o.z)
o = nil
assert_nil(o&.x)
assert_nothing_raised(NoMethodError) {o&.x = raise}
assert_nothing_raised(NoMethodError) {o&.x *= raise}
assert_nothing_raised(NoMethodError) {o&.x *= raise; nil}
end
def test_safe_call_evaluate_arguments_only_method_call_is_made
count = 0
proc = proc { count += 1; 1 }
s = Struct.new(:x, :y)
o = s.new(["a", "b", "c"])
o.y&.at(proc.call)
assert_equal(0, count)
o.x&.at(proc.call)
assert_equal(1, count)
end
def test_safe_call_block_command
assert_nil(("a".sub! "b" do end&.foo 1))
end
def test_safe_call_block_call
assert_nil(("a".sub! "b" do end&.foo))
end
def test_safe_call_block_call_brace
assert_nil(("a".sub! "b" do end&.foo {}))
assert_nil(("a".sub! "b" do end&.foo do end))
end
def test_safe_call_block_call_command
assert_nil(("a".sub! "b" do end&.foo 1 do end))
end
def test_invalid_safe_call
h = nil
assert_raise(NoMethodError) {
h[:foo] = nil
}
end
def test_call_splat_order
bug12860 = '[ruby-core:77701] [Bug# 12860]'
ary = [1, 2]
assert_equal([1, 2, 1], aaa(*ary, ary.shift), bug12860)
ary = [1, 2]
assert_equal([0, 1, 2, 1], aaa(0, *ary, ary.shift), bug12860)
end
def test_call_block_order
bug16504 = '[ruby-core:96769] [Bug# 16504]'
b = proc{}
ary = [1, 2, b]
assert_equal([1, 2, b], aaa(*ary, &ary.pop), bug16504)
ary = [1, 2, b]
assert_equal([0, 1, 2, b], aaa(0, *ary, &ary.pop), bug16504)
end
end
|
