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# frozen_string_literal: true
require 'spec_helper'
RSpec.describe Gitlab::UsageMetricGenerator, :silence_stdout do
let(:ce_temp_dir) { Dir.mktmpdir }
let(:ee_temp_dir) { Dir.mktmpdir }
let(:spec_ce_temp_dir) { Dir.mktmpdir }
let(:spec_ee_temp_dir) { Dir.mktmpdir }
let(:args) { ['CountFoo'] }
let(:options) { { 'type' => 'redis_hll' } }
before do
stub_const("#{described_class}::CE_DIR", ce_temp_dir)
stub_const("#{described_class}::EE_DIR", ee_temp_dir)
stub_const("#{described_class}::SPEC_CE_DIR", spec_ce_temp_dir)
stub_const("#{described_class}::SPEC_EE_DIR", spec_ee_temp_dir)
end
after do
FileUtils.rm_rf([ce_temp_dir, ee_temp_dir, spec_ce_temp_dir, spec_ee_temp_dir])
end
def expect_generated_file(directory, file_name, content)
file_path = File.join(directory, file_name)
file = File.read(file_path)
expect(file).to eq(content)
end
describe 'Creating metric instrumentation files' do
let(:sample_metric_dir) { 'lib/generators/gitlab/usage_metric_generator' }
let(:sample_metric) { fixture_file(File.join(sample_metric_dir, 'sample_metric.rb')) }
let(:sample_spec) { fixture_file(File.join(sample_metric_dir, 'sample_metric_test.rb')) }
it 'creates CE metric instrumentation files using the template' do
described_class.new(args, options).invoke_all
expect_generated_file(ce_temp_dir, 'count_foo_metric.rb', sample_metric)
expect_generated_file(spec_ce_temp_dir, 'count_foo_metric_spec.rb', sample_spec)
end
context 'with EE flag true' do
let(:options) { { 'type' => 'redis_hll', 'ee' => true } }
it 'creates EE metric instrumentation files using the template' do
described_class.new(args, options).invoke_all
expect_generated_file(ee_temp_dir, 'count_foo_metric.rb', sample_metric)
expect_generated_file(spec_ee_temp_dir, 'count_foo_metric_spec.rb', sample_spec)
end
end
context 'with type option missing' do
let(:options) { {} }
it 'raises an ArgumentError' do
expect { described_class.new(args, options).invoke_all }.to raise_error(ArgumentError, /Type is required/)
end
end
context 'with type option value not included in approved superclasses' do
let(:options) { { 'type' => 'some_other_type' } }
it 'raises an ArgumentError' do
expect { described_class.new(args, options).invoke_all }.to raise_error(ArgumentError, /Unknown type 'some_other_type'/)
end
end
end
end
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