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require 'spec_helper'
describe Immutable::List do
describe '#join' do
context 'on a really big list' do
it "doesn't run out of stack" do
-> { BigList.join }.should_not raise_error
end
end
context 'with a separator' do
[
[[], ''],
[['A'], 'A'],
[%w[A B C], 'A|B|C']
].each do |values, expected|
context "on #{values.inspect}" do
let(:list) { L[*values] }
it 'preserves the original' do
list.join('|')
list.should eql(L[*values])
end
it "returns #{expected.inspect}" do
list.join('|').should == expected
end
end
end
end
context 'without a separator' do
[
[[], ''],
[['A'], 'A'],
[%w[A B C], 'ABC']
].each do |values, expected|
context "on #{values.inspect}" do
let(:list) { L[*values] }
it 'preserves the original' do
list.join
list.should eql(L[*values])
end
it "returns #{expected.inspect}" do
list.join.should == expected
end
end
end
end
context 'without a separator (with global default separator set)' do
before { $, = '**' }
let(:list) { L['A', 'B', 'C'] }
after { $, = nil }
it 'uses the default global separator' do
list.join.should == 'A**B**C'
end
end
end
end
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