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require File.expand_path('../spec_helper', __FILE__)
load_extension("range")
describe "C-API Range function" do
before :each do
@s = CApiRangeSpecs.new
end
describe "rb_range_new" do
it "constructs a range using the given start and end" do
range = @s.rb_range_new('a', 'c')
range.should == ('a'..'c')
range.first.should == 'a'
range.last.should == 'c'
end
it "includes the end object when the third parameter is omitted or false" do
@s.rb_range_new('a', 'c').to_a.should == ['a', 'b', 'c']
@s.rb_range_new(1, 3).to_a.should == [1, 2, 3]
@s.rb_range_new('a', 'c', false).to_a.should == ['a', 'b', 'c']
@s.rb_range_new(1, 3, false).to_a.should == [1, 2, 3]
@s.rb_range_new('a', 'c', true).to_a.should == ['a', 'b']
@s.rb_range_new(1, 3, 1).to_a.should == [1, 2]
@s.rb_range_new(1, 3, mock('[1,2]')).to_a.should == [1, 2]
@s.rb_range_new(1, 3, :test).to_a.should == [1, 2]
end
it "raises an ArgumentError when the given start and end can't be compared by using #<=>" do
lambda { @s.rb_range_new(1, mock('x')) }.should raise_error(ArgumentError)
lambda { @s.rb_range_new(mock('x'), mock('y')) }.should raise_error(ArgumentError)
end
end
describe "rb_range_values" do
it "stores the range properties" do
beg, fin, excl = @s.rb_range_values(10..20)
beg.should == 10
fin.should == 20
excl.should be_false
end
it "stores the range properties of non-Range object" do
range_like = mock('range')
def range_like.begin
10
end
def range_like.end
20
end
def range_like.exclude_end?
false
end
beg, fin, excl = @s.rb_range_values(range_like)
beg.should == 10
fin.should == 20
excl.should be_false
end
end
end
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