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# frozen_string_literal: true
require 'rubocop_spec_helper'
require_relative '../../../rubocop/cop/experiments_test_coverage'
RSpec.describe RuboCop::Cop::ExperimentsTestCoverage, feature_category: :experimentation_conversion do
let(:class_offense) { described_class::CLASS_OFFENSE }
let(:block_offense) { described_class::BLOCK_OFFENSE }
before do
allow(File).to receive(:exist?).and_return(true)
allow(File).to receive(:new).and_return(instance_double(File, read: tests_code))
end
describe '#on_class' do
context 'when there are no tests' do
let(:tests_code) { '' }
it 'registers an offense' do
expect_offense(<<~RUBY)
class ExperimentName < ApplicationExperiment
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ #{class_offense}
end
RUBY
end
end
context 'when there is no stub_experiments' do
let(:tests_code) { "candidate third" }
it 'registers an offense' do
expect_offense(<<~RUBY)
class ExperimentName < ApplicationExperiment
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ #{class_offense}
candidate
variant(:third) { 'third option' }
end
RUBY
end
end
context 'when variant test is missing' do
let(:tests_code) { "\nstub_experiments(experiment_name: :candidate)" }
it 'registers an offense' do
expect_offense(<<~RUBY)
class ExperimentName < ApplicationExperiment
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ #{class_offense}
candidate
variant(:third) { 'third option' }
end
RUBY
end
end
context 'when stub_experiments is commented out' do
let(:tests_code) do
"\n# stub_experiments(experiment_name: :candidate, experiment_name: :third)"
end
it 'registers an offense' do
expect_offense(<<~RUBY)
class ExperimentName < ApplicationExperiment
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ #{class_offense}
candidate
variant(:third) { 'third option' }
end
RUBY
end
end
context 'when all tests are present' do
let(:tests_code) do
"#\nstub_experiments(experiment_name: :candidate, experiment_name: :third)"
end
before do
allow(cop).to receive(:filepath).and_return('app/experiments/experiment_name_experiment.rb')
end
it 'does not register an offense' do
expect_no_offenses(<<~RUBY)
class ExperimentName < ApplicationExperiment
candidate
variant(:third) { 'third option' }
end
RUBY
end
end
end
describe '#on_block' do
context 'when there are no tests' do
let(:tests_code) { '' }
it 'registers an offense' do
expect_offense(<<~RUBY)
experiment(:experiment_name) do |e|
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ #{block_offense}
end
RUBY
end
end
context 'when there is no stub_experiments' do
let(:tests_code) { "candidate third" }
it 'registers an offense' do
expect_offense(<<~RUBY)
experiment(:experiment_name) do |e|
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ #{block_offense}
e.candidate { 'candidate' }
e.variant(:third) { 'third option' }
e.run
end
RUBY
end
end
context 'when variant test is missing' do
let(:tests_code) { "\nstub_experiments(experiment_name: :candidate)" }
it 'registers an offense' do
expect_offense(<<~RUBY)
experiment(:experiment_name) do |e|
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ #{block_offense}
e.candidate { 'candidate' }
e.variant(:third) { 'third option' }
e.run
end
RUBY
end
end
context 'when stub_experiments is commented out' do
let(:tests_code) do
"\n# stub_experiments(experiment_name: :candidate, experiment_name: :third)"
end
it 'registers an offense' do
expect_offense(<<~RUBY)
experiment(:experiment_name) do |e|
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ #{block_offense}
e.candidate { 'candidate' }
e.variant(:third) { 'third option' }
e.run
end
RUBY
end
end
context 'when all tests are present' do
let(:tests_code) do
"#\nstub_experiments(experiment_name: :candidate, experiment_name: :third)"
end
it 'does not register an offense' do
expect_no_offenses(<<~RUBY)
experiment(:experiment_name) do |e|
e.candidate { 'candidate' }
e.variant(:third) { 'third option' }
e.run
end
RUBY
end
end
end
end
|
