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# frozen_string_literal: true
require 'fast_spec_helper'
require 'rspec-parameterized'
load File.expand_path('../../bin/feature-flag', __dir__)
RSpec.describe 'bin/feature-flag' do
using RSpec::Parameterized::TableSyntax
describe FeatureFlagCreator do
let(:argv) { %w[feature-flag-name -t development -g group::memory -i https://url -m http://url] }
let(:options) { FeatureFlagOptionParser.parse(argv) }
let(:creator) { described_class.new(options) }
let(:existing_flags) do
{ 'existing_feature_flag' => File.join('config', 'feature_flags', 'development', 'existing_feature_flag.yml') }
end
before do
allow(creator).to receive(:all_feature_flag_names) { existing_flags }
allow(creator).to receive(:branch_name) { 'feature-branch' }
allow(creator).to receive(:editor) { nil }
# ignore writes
allow(File).to receive(:write).and_return(true)
# ignore stdin
allow($stdin).to receive(:gets).and_raise('EOF')
end
subject { creator.execute }
it 'properly creates a feature flag' do
expect(File).to receive(:write).with(
File.join('config', 'feature_flags', 'development', 'feature_flag_name.yml'),
anything)
expect do
subject
end.to output(/name: feature_flag_name/).to_stdout
end
context 'when running on master' do
it 'requires feature branch' do
expect(creator).to receive(:branch_name) { 'master' }
expect { subject }.to raise_error(FeatureFlagHelpers::Abort, /Create a branch first/)
end
end
context 'validates feature flag name' do
where(:argv, :ex) do
%w[.invalid.feature.flag] | /Provide a name for the feature flag that is/
%w[existing-feature-flag] | /already exists!/
end
with_them do
it do
expect { subject }.to raise_error(ex)
end
end
end
end
describe FeatureFlagOptionParser do
describe '.parse' do
where(:param, :argv, :result) do
:name | %w[foo] | 'foo'
:amend | %w[foo --amend] | true
:force | %w[foo -f] | true
:force | %w[foo --force] | true
:ee | %w[foo -e] | true
:ee | %w[foo --ee] | true
:introduced_by_url | %w[foo -m https://url] | 'https://url'
:introduced_by_url | %w[foo --introduced-by-url https://url] | 'https://url'
:rollout_issue_url | %w[foo -i https://url] | 'https://url'
:rollout_issue_url | %w[foo --rollout-issue-url https://url] | 'https://url'
:dry_run | %w[foo -n] | true
:dry_run | %w[foo --dry-run] | true
:type | %w[foo -t development] | :development
:type | %w[foo --type development] | :development
:type | %w[foo -t invalid] | nil
:type | %w[foo --type invalid] | nil
:group | %w[foo -g group::memory] | 'group::memory'
:group | %w[foo --group group::memory] | 'group::memory'
:group | %w[foo -g invalid] | nil
:group | %w[foo --group invalid] | nil
end
with_them do
it do
options = described_class.parse(Array(argv))
expect(options.public_send(param)).to eq(result)
end
end
it 'missing feature flag name' do
expect do
expect { described_class.parse(%w[--amend]) }.to output(/Feature flag name is required/).to_stdout
end.to raise_error(FeatureFlagHelpers::Abort)
end
it 'parses -h' do
expect do
expect { described_class.parse(%w[foo -h]) }.to output(/Usage:/).to_stdout
end.to raise_error(FeatureFlagHelpers::Done)
end
end
describe '.read_type' do
let(:type) { 'development' }
context 'when there is only a single type defined' do
before do
stub_const('FeatureFlagOptionParser::TYPES',
development: { description: 'short' }
)
end
it 'returns that type' do
expect(described_class.read_type).to eq(:development)
end
end
context 'when there is deprecated feature flag type' do
before do
stub_const('FeatureFlagOptionParser::TYPES',
development: { description: 'short' },
deprecated: { description: 'deprecated', deprecated: true }
)
end
context 'and deprecated type is given' do
let(:type) { 'deprecated' }
it 'shows error message and retries' do
expect($stdin).to receive(:gets).and_return(type)
expect($stdin).to receive(:gets).and_raise('EOF')
expect do
expect { described_class.read_type }.to raise_error(/EOF/)
end.to output(/Specify the feature flag type/).to_stdout
.and output(/Invalid type specified/).to_stderr
end
end
end
context 'when there are many types defined' do
before do
stub_const('FeatureFlagOptionParser::TYPES',
development: { description: 'short' },
licensed: { description: 'licensed' }
)
end
it 'reads type from $stdin' do
expect($stdin).to receive(:gets).and_return(type)
expect do
expect(described_class.read_type).to eq(:development)
end.to output(/Specify the feature flag type/).to_stdout
end
context 'when invalid type is given' do
let(:type) { 'invalid' }
it 'shows error message and retries' do
expect($stdin).to receive(:gets).and_return(type)
expect($stdin).to receive(:gets).and_raise('EOF')
expect do
expect { described_class.read_type }.to raise_error(/EOF/)
end.to output(/Specify the feature flag type/).to_stdout
.and output(/Invalid type specified/).to_stderr
end
end
end
end
describe '.read_group' do
let(:group) { 'group::memory' }
it 'reads type from $stdin' do
expect($stdin).to receive(:gets).and_return(group)
expect do
expect(described_class.read_group).to eq('group::memory')
end.to output(/Specify the group introducing the feature flag/).to_stdout
end
context 'invalid group given' do
let(:type) { 'invalid' }
it 'shows error message and retries' do
expect($stdin).to receive(:gets).and_return(type)
expect($stdin).to receive(:gets).and_raise('EOF')
expect do
expect { described_class.read_group }.to raise_error(/EOF/)
end.to output(/Specify the group introducing the feature flag/).to_stdout
.and output(/The group needs to include/).to_stderr
end
end
end
describe '.read_introduced_by_url' do
let(:url) { 'https://merge-request' }
it 'reads type from $stdin' do
expect($stdin).to receive(:gets).and_return(url)
expect do
expect(described_class.read_introduced_by_url).to eq('https://merge-request')
end.to output(/URL of the MR introducing the feature flag/).to_stdout
end
context 'empty URL given' do
let(:url) { '' }
it 'skips entry' do
expect($stdin).to receive(:gets).and_return(url)
expect do
expect(described_class.read_introduced_by_url).to be_nil
end.to output(/URL of the MR introducing the feature flag/).to_stdout
end
end
context 'invalid URL given' do
let(:url) { 'invalid' }
it 'shows error message and retries' do
expect($stdin).to receive(:gets).and_return(url)
expect($stdin).to receive(:gets).and_raise('EOF')
expect do
expect { described_class.read_introduced_by_url }.to raise_error(/EOF/)
end.to output(/URL of the MR introducing the feature flag/).to_stdout
.and output(/URL needs to start with/).to_stderr
end
end
end
describe '.read_rollout_issue_url' do
let(:options) { double('options', name: 'foo', type: :development) }
let(:url) { 'https://issue' }
it 'reads type from $stdin' do
expect($stdin).to receive(:gets).and_return(url)
expect do
expect(described_class.read_rollout_issue_url(options)).to eq('https://issue')
end.to output(/URL of the rollout issue/).to_stdout
end
context 'invalid URL given' do
let(:type) { 'invalid' }
it 'shows error message and retries' do
expect($stdin).to receive(:gets).and_return(type)
expect($stdin).to receive(:gets).and_raise('EOF')
expect do
expect { described_class.read_rollout_issue_url(options) }.to raise_error(/EOF/)
end.to output(/URL of the rollout issue/).to_stdout
.and output(/URL needs to start/).to_stderr
end
end
end
describe '.read_ee_only' do
let(:options) { double('options', name: 'foo', type: :development) }
it { expect(described_class.read_ee_only(options)).to eq(false) }
end
end
end
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