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88 lines
2.4 KiB
Ruby
88 lines
2.4 KiB
Ruby
require_relative '../../spec_helper'
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require_relative '../enumerable/shared/enumeratorized'
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describe "Range#each" do
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it "passes each element to the given block by using #succ" do
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a = []
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(-5..5).each { |i| a << i }
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a.should == [-5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5]
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a = []
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('A'..'D').each { |i| a << i }
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a.should == ['A','B','C','D']
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a = []
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('A'...'D').each { |i| a << i }
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a.should == ['A','B','C']
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a = []
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(0xfffd...0xffff).each { |i| a << i }
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a.should == [0xfffd, 0xfffe]
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y = mock('y')
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x = mock('x')
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x.should_receive(:<=>).with(y).any_number_of_times.and_return(-1)
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x.should_receive(:<=>).with(x).any_number_of_times.and_return(0)
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x.should_receive(:succ).any_number_of_times.and_return(y)
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y.should_receive(:<=>).with(x).any_number_of_times.and_return(1)
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y.should_receive(:<=>).with(y).any_number_of_times.and_return(0)
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a = []
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(x..y).each { |i| a << i }
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a.should == [x, y]
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end
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ruby_version_is "2.6" do
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it "works with endless ranges" do
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a = []
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eval("(-2..)").each { |x| break if x > 2; a << x }
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a.should == [-2, -1, 0, 1, 2]
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a = []
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eval("(-2...)").each { |x| break if x > 2; a << x }
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a.should == [-2, -1, 0, 1, 2]
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end
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it "works with String endless ranges" do
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a = []
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eval("('A'..)").each { |x| break if x > "D"; a << x }
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a.should == ["A", "B", "C", "D"]
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a = []
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eval("('A'...)").each { |x| break if x > "D"; a << x }
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a.should == ["A", "B", "C", "D"]
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end
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end
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it "raises a TypeError if the first element does not respond to #succ" do
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-> { (0.5..2.4).each { |i| i } }.should raise_error(TypeError)
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b = mock('x')
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(a = mock('1')).should_receive(:<=>).with(b).and_return(1)
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-> { (a..b).each { |i| i } }.should raise_error(TypeError)
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end
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it "returns self" do
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range = 1..10
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range.each{}.should equal(range)
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end
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it "returns an enumerator when no block given" do
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enum = (1..3).each
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enum.should be_an_instance_of(Enumerator)
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enum.to_a.should == [1, 2, 3]
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end
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it "raises a TypeError if the first element is a Time object" do
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t = Time.now
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-> { (t..t+1).each { |i| i } }.should raise_error(TypeError)
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end
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it "passes each Symbol element by using #succ" do
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(:aa..:ac).each.to_a.should == [:aa, :ab, :ac]
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(:aa...:ac).each.to_a.should == [:aa, :ab]
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end
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it_behaves_like :enumeratorized_with_origin_size, :each, (1..3)
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end
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