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
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
require File.expand_path('../../../spec_helper', __FILE__)
require File.expand_path('../fixtures/classes', __FILE__)
describe "Enumerable#all?" do
before :each do
@enum = EnumerableSpecs::Numerous.new
@empty = EnumerableSpecs::Empty.new()
@enum1 = [0, 1, 2, -1]
@enum2 = [nil, false, true]
end
it "always returns true on empty enumeration" do
@empty.all?.should == true
@empty.all? { nil }.should == true
[].all?.should == true
[].all? { false }.should == true
{}.all?.should == true
{}.all? { nil }.should == true
end
it "does not hide exceptions out of #each" do
lambda {
EnumerableSpecs::ThrowingEach.new.all?
}.should raise_error(RuntimeError)
lambda {
EnumerableSpecs::ThrowingEach.new.all? { false }
}.should raise_error(RuntimeError)
end
describe "with no block" do
it "returns true if no elements are false or nil" do
@enum.all?.should == true
@enum1.all?.should == true
@enum2.all?.should == false
EnumerableSpecs::Numerous.new('a','b','c').all?.should == true
EnumerableSpecs::Numerous.new(0, "x", true).all?.should == true
end
it "returns false if there are false or nil elements" do
EnumerableSpecs::Numerous.new(false).all?.should == false
EnumerableSpecs::Numerous.new(false, false).all?.should == false
EnumerableSpecs::Numerous.new(nil).all?.should == false
EnumerableSpecs::Numerous.new(nil, nil).all?.should == false
EnumerableSpecs::Numerous.new(1, nil, 2).all?.should == false
EnumerableSpecs::Numerous.new(0, "x", false, true).all?.should == false
@enum2.all?.should == false
end
it "gathers whole arrays as elements when each yields multiple" do
# This spec doesn't spec what it says it does
multi = EnumerableSpecs::YieldsMultiWithFalse.new
multi.all?.should be_true
end
ruby_version_is "2.5" do
describe "given a pattern argument" do
# This spec should be replaced by more extensive ones
it "returns true iff all match that pattern" do
@enum.all?(Integer).should == true
@enum2.all?(NilClass).should == false
end
end
end
end
describe "with block" do
it "returns true if the block never returns false or nil" do
@enum.all? { true }.should == true
@enum1.all?{ |o| o < 5 }.should == true
@enum1.all?{ |o| 5 }.should == true
end
it "returns false if the block ever returns false or nil" do
@enum.all? { false }.should == false
@enum.all? { nil }.should == false
@enum1.all?{ |o| o > 2 }.should == false
EnumerableSpecs::Numerous.new.all? { |i| i > 5 }.should == false
EnumerableSpecs::Numerous.new.all? { |i| i == 3 ? nil : true }.should == false
end
it "stops iterating once the return value is determined" do
yielded = []
EnumerableSpecs::Numerous.new(:one, :two, :three).all? do |e|
yielded << e
false
end.should == false
yielded.should == [:one]
yielded = []
EnumerableSpecs::Numerous.new(true, true, false, true).all? do |e|
yielded << e
e
end.should == false
yielded.should == [true, true, false]
yielded = []
EnumerableSpecs::Numerous.new(1, 2, 3, 4, 5).all? do |e|
yielded << e
e
end.should == true
yielded.should == [1, 2, 3, 4, 5]
end
it "does not hide exceptions out of the block" do
lambda {
@enum.all? { raise "from block" }
}.should raise_error(RuntimeError)
end
it "gathers initial args as elements when each yields multiple" do
multi = EnumerableSpecs::YieldsMulti.new
multi.all? {|e| !(Array === e) }.should be_true
end
it "yields multiple arguments when each yields multiple" do
multi = EnumerableSpecs::YieldsMulti.new
yielded = []
multi.all? {|e, i| yielded << [e, i] }
yielded.should == [[1, 2], [3, 4], [6, 7]]
end
end
end
|
