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
112
|
require_relative '../fixtures/classes'
require_relative '../fixtures/encoded_strings'
describe :array_join_with_default_separator, shared: true do
before :each do
@separator = $,
end
after :each do
$, = @separator
end
it "returns an empty string if the Array is empty" do
[].send(@method).should == ''
end
it "returns a US-ASCII string for an empty Array" do
[].send(@method).encoding.should == Encoding::US_ASCII
end
it "returns a string formed by concatenating each String element separated by $," do
suppress_warning {
$, = " | "
["1", "2", "3"].send(@method).should == "1 | 2 | 3"
}
end
it "attempts coercion via #to_str first" do
obj = mock('foo')
obj.should_receive(:to_str).any_number_of_times.and_return("foo")
[obj].send(@method).should == "foo"
end
it "attempts coercion via #to_ary second" do
obj = mock('foo')
obj.should_receive(:to_str).any_number_of_times.and_return(nil)
obj.should_receive(:to_ary).any_number_of_times.and_return(["foo"])
[obj].send(@method).should == "foo"
end
it "attempts coercion via #to_s third" do
obj = mock('foo')
obj.should_receive(:to_str).any_number_of_times.and_return(nil)
obj.should_receive(:to_ary).any_number_of_times.and_return(nil)
obj.should_receive(:to_s).any_number_of_times.and_return("foo")
[obj].send(@method).should == "foo"
end
it "raises a NoMethodError if an element does not respond to #to_str, #to_ary, or #to_s" do
obj = mock('o')
class << obj; undef :to_s; end
-> { [1, obj].send(@method) }.should raise_error(NoMethodError)
end
it "raises an ArgumentError when the Array is recursive" do
-> { ArraySpecs.recursive_array.send(@method) }.should raise_error(ArgumentError)
-> { ArraySpecs.head_recursive_array.send(@method) }.should raise_error(ArgumentError)
-> { ArraySpecs.empty_recursive_array.send(@method) }.should raise_error(ArgumentError)
end
it "uses the first encoding when other strings are compatible" do
ary1 = ArraySpecs.array_with_7bit_utf8_and_usascii_strings
ary2 = ArraySpecs.array_with_usascii_and_7bit_utf8_strings
ary3 = ArraySpecs.array_with_utf8_and_7bit_binary_strings
ary4 = ArraySpecs.array_with_usascii_and_7bit_binary_strings
ary1.send(@method).encoding.should == Encoding::UTF_8
ary2.send(@method).encoding.should == Encoding::US_ASCII
ary3.send(@method).encoding.should == Encoding::UTF_8
ary4.send(@method).encoding.should == Encoding::US_ASCII
end
it "uses the widest common encoding when other strings are incompatible" do
ary1 = ArraySpecs.array_with_utf8_and_usascii_strings
ary2 = ArraySpecs.array_with_usascii_and_utf8_strings
ary1.send(@method).encoding.should == Encoding::UTF_8
ary2.send(@method).encoding.should == Encoding::UTF_8
end
it "fails for arrays with incompatibly-encoded strings" do
ary_utf8_bad_binary = ArraySpecs.array_with_utf8_and_binary_strings
-> { ary_utf8_bad_binary.send(@method) }.should raise_error(EncodingError)
end
context "when $, is not nil" do
before do
suppress_warning do
$, = '*'
end
end
it "warns" do
-> { [].join }.should complain(/warning: \$, is set to non-nil value/)
-> { [].join(nil) }.should complain(/warning: \$, is set to non-nil value/)
end
end
end
describe :array_join_with_string_separator, shared: true do
it "returns a string formed by concatenating each element.to_str separated by separator" do
obj = mock('foo')
obj.should_receive(:to_str).and_return("foo")
[1, 2, 3, 4, obj].send(@method, ' | ').should == '1 | 2 | 3 | 4 | foo'
end
it "uses the same separator with nested arrays" do
[1, [2, [3, 4], 5], 6].send(@method, ":").should == "1:2:3:4:5:6"
[1, [2, ArraySpecs::MyArray[3, 4], 5], 6].send(@method, ":").should == "1:2:3:4:5:6"
end
end
|
