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Contents
require 'spec_helper'
describe 'String' do
describe '#gsub' do
it 'handles recursive gsub' do
pass_slot_rx = /{(\d+)}/
recurse_gsub = -> text {
text.gsub(pass_slot_rx) {
index = $1.to_i
if index == 0
recurse_gsub.call '{1}'
else
'value'
end
}
}
result = recurse_gsub.call '<code>{0}</code>'
result.should == '<code>value</code>'
end
it 'works well with zero-length matches' do
expect("test".gsub(/^/, '2')).to eq "2test"
expect("test".gsub(/$/, '2')).to eq "test2"
expect("test".gsub(/\b/, '2')).to eq "2test2"
end
it "doesn't override $~ when it's inspected" do
'a:b'.gsub(/([a-z]):([a-z])/) do
$~.inspect
target, content = $1, $2
expect([target, content]).to eq(['a', 'b'])
end
end
end
describe '#sub' do
it 'works well with zero-length matches' do
expect("test".sub(/^/, '2')).to eq "2test"
expect("test".sub(/$/, '2')).to eq "test2"
expect("test".sub(/\b/, '2')).to eq "2test"
end
end
end
Version data entries
23 entries across 23 versions & 1 rubygems