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# frozen_string_literal: true
require 'fast_spec_helper'
RSpec.describe Gitlab::StringPlaceholderReplacer do
describe '.render_url' do
it 'returns the nil if the string is blank' do
expect(described_class.replace_string_placeholders(nil, /whatever/)).to be_blank
end
it 'returns the string if the placeholder regex' do
expect(described_class.replace_string_placeholders('whatever')).to eq 'whatever'
end
it 'returns the string if no block given' do
expect(described_class.replace_string_placeholders('whatever', /whatever/)).to eq 'whatever'
end
context 'when all params are valid' do
let(:string) { '%{path}/%{id}/%{branch}' }
let(:regex) { /(path|id)/ }
it 'replaces each placeholders with the block result' do
result = described_class.replace_string_placeholders(string, regex) do |arg|
'WHATEVER'
end
expect(result).to eq 'WHATEVER/WHATEVER/%{branch}'
end
it 'does not replace the placeholder if the block result is nil' do
result = described_class.replace_string_placeholders(string, regex) do |arg|
arg == 'path' ? nil : 'WHATEVER'
end
expect(result).to eq '%{path}/WHATEVER/%{branch}'
end
end
end
end
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