[英]Rspec test rails generate CSV
我有一個簡單的CSV rails生成器,我不知道如何使用rspec對其進行測試。 我試圖按照這篇文章https://making.dia.com/testing-csv-files-in-rails-on-the-fly-7a1285cc2aac和那個也用RSpec測試CSV.generate,但是我只是不這樣做不了解發生了什么,這些例子似乎有所不同。
module AdminLogData
class CsvAdminLogGenerator
LOG_HEADERS = ['Date&Time', 'Action', 'New Data'].freeze
def initialize(start_date:, end_date:)
@start_date = start_date
@end_date = end_date
end
def call
AdminPanelLog.dates_between(start_date, end_date).find_each do |admin_log|
CSV.generate(headers: LOG_HEADERS, col_sep: ';', encoding: 'UTF-8') do |csv|
csv << admin_log.created_at
csv << admin_log.action_type
csv << admin_log.admin_email
csv << admin_log.new_data
end
end
end
end
end
有人可以解釋一下如何測試這門課嗎? 我應該先創建一些假csv嗎?
spec
RSpec.describe AdminLogData::CsvAdminLogGenerator do
subject(:csv_file) { described_class.new(start_date, end_date).call }
let(:start_date) { 3.months.ago }
let(:end_date) { 2.months.ago }
let(:header) { 'column1, column2, column3' }
let(:row2) { 'value1, value2, value3' }
let(:row3) { 'value1, value2, value3' }
let(:rows) { [header, row2, row3] }
it 'creates CSV file with proper value' do
expect(csv).to receive(:<<).with(log.created_at)
end
end
編輯:
expected collection contained: ["2019-06-17 22:13:48 +0200,New,monte@kuphal.biz,\"{\"\"email\"\"=>\"\"jeanna@schinner.io\"\", \"\"ro...=>\"\"2019-09-16T22:13:48.752+02:00\"\", \"\"other_activities\"\"=>\"\"forbidden websites\"\"}\"\n"]
actual collection contained: ["2019-06-17 22:13:48 +0200", "New", "monte@kuphal.biz", "{\"email\"=>\"brandon@williamsonsporer.org\... \"last_update\"=>\"2019-09-16T22:13:48.752+02:00\", \"other_activities\"=>\"forbidden websites\"}"]
the missing elements were: ["2019-06-17 22:13:48 +0200,New,monte@kuphal.biz,\"{\"\"email\"\"=>\"\"jeanna@schinner.io\"\", \"\"ro...=>\"\"2019-09-16T22:13:48.752+02:00\"\", \"\"other_activities\"\"=>\"\"forbidden websites\"\"}\"\n"]
the extra elements were: ["2019-06-17 22:13:48 +0200", "New", "monte@kuphal.biz", "{\"email\"=>\"brandon@williamsonsporer.org\... \"last_update\"=>\"2019-09-16T22:13:48.752+02:00\", \"other_activities\"=>\"forbidden websites\"}"]
步驟1:為AdminLogData創建工廠
使用gem factory_bot與faker結合使用,您將能夠為測試生成偽造的AdminLogData對象。
步驟2:編寫測試
在測試中,您更有可能要測試CSV行是否具有正確的數據,而不是該類收到“ <<”消息。 例如,它看起來可能像這樣:
RSpec.describe AdminLogData::CsvAdminLogGenerator do
subject(:csv_file) { described_class.new(start_date, end_date).call }
let(:start_date) { 3.months.ago }
let(:end_date) { 2.months.ago }
let(:admin_log_data) { FactoryBot.create(:admin_log_data, created_at: 3.months.ago) }
before { admin_log_data }
it 'creates CSV file with proper value' do
expect(csv_file.to_a[1]).to match_array(CSV.generate_line([
admin_log_data.created_at
admin_log_data.action_type
admin_log_data.admin_email
admin_log_data.new_data
]))
end
end
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