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require 'spec_helper'
require 'chef/util/editor'
describe Chef::Util::Editor do
describe '#initialize' do
it 'takes an Enumerable of lines' do
editor = described_class.new(File.open(__FILE__))
expect(editor.lines).to be == IO.readlines(__FILE__)
end
it 'makes a copy of an Array' do
array = Array.new
editor = described_class.new(array)
expect(editor.lines).to_not be(array)
end
end
subject(:editor) { described_class.new(input_lines) }
let(:input_lines) { ['one', 'two', 'two', 'three'] }
describe '#append_line_after' do
context 'when there is no match' do
subject(:execute) { editor.append_line_after('missing', 'new') }
it('returns the number of added lines') { is_expected.to eq(0) }
it 'does not add any lines' do
expect { execute }.to_not change { editor.lines }
end
end
context 'when there is a match' do
subject(:execute) { editor.append_line_after('two', 'new') }
it('returns the number of added lines') { is_expected.to eq(2) }
it 'adds a line after each match' do
execute
expect(editor.lines).to be == ['one', 'two', 'new', 'two', 'new', 'three']
end
end
it 'matches a Regexp' do
expect(editor.append_line_after(/^ee/, 'new')).to be == 0
expect(editor.append_line_after(/ee$/, 'new')).to be == 1
end
end
describe '#append_line_if_missing' do
context 'when there is no match' do
subject(:execute) { editor.append_line_if_missing('missing', 'new') }
it('returns the number of added lines') { is_expected.to eq(1) }
it 'adds a line to the end' do
execute
expect(editor.lines).to be == ['one', 'two', 'two', 'three', 'new']
end
end
context 'when there is a match' do
subject(:execute) { editor.append_line_if_missing('one', 'new') }
it('returns the number of added lines') { is_expected.to eq(0) }
it 'does not add any lines' do
expect { execute }.to_not change { editor.lines }
end
end
it 'matches a Regexp' do
expect(editor.append_line_if_missing(/ee$/, 'new')).to be == 0
expect(editor.append_line_if_missing(/^ee/, 'new')).to be == 1
end
end
describe '#remove_lines' do
context 'when there is no match' do
subject(:execute) { editor.remove_lines('missing') }
it('returns the number of removed lines') { is_expected.to eq(0) }
it 'does not remove any lines' do
expect { execute }.to_not change { editor.lines }
end
end
context 'when there is a match' do
subject(:execute) { editor.remove_lines('two') }
it('returns the number of removed lines') { is_expected.to eq(2) }
it 'removes the matching lines' do
execute
expect(editor.lines).to be == ['one', 'three']
end
end
it 'matches a Regexp' do
expect(editor.remove_lines(/^ee/)).to be == 0
expect(editor.remove_lines(/ee$/)).to be == 1
end
end
describe '#replace' do
context 'when there is no match' do
subject(:execute) { editor.replace('missing', 'new') }
it('returns the number of changed lines') { is_expected.to eq(0) }
it 'does not change any lines' do
expect { execute }.to_not change { editor.lines }
end
end
context 'when there is a match' do
subject(:execute) { editor.replace('two', 'new') }
it('returns the number of changed lines') { is_expected.to eq(2) }
it 'replaces the matching portions' do
execute
expect(editor.lines).to be == ['one', 'new', 'new', 'three']
end
end
it 'matches a Regexp' do
expect(editor.replace(/^ee/, 'new')).to be == 0
expect(editor.replace(/ee$/, 'new')).to be == 1
expect(editor.lines).to be == ['one', 'two', 'two', 'thrnew']
end
end
describe '#replace_lines' do
context 'when there is no match' do
subject(:execute) { editor.replace_lines('missing', 'new') }
it('returns the number of changed lines') { is_expected.to eq(0) }
it 'does not change any lines' do
expect { execute }.to_not change { editor.lines }
end
end
context 'when there is a match' do
subject(:execute) { editor.replace_lines('two', 'new') }
it('returns the number of replaced lines') { is_expected.to eq(2) }
it 'replaces the matching line' do
execute
expect(editor.lines).to be == ['one', 'new', 'new', 'three']
end
end
it 'matches a Regexp' do
expect(editor.replace_lines(/^ee/, 'new')).to be == 0
expect(editor.replace_lines(/ee$/, 'new')).to be == 1
expect(editor.lines).to be == ['one', 'two', 'two', 'new']
end
end
end
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