I have problems with using stubs, and not sure how should I test this class method:
class Artist < ActiveRecord::Base
def self.import(file)
CSV.foreach(file.path, headers: true) do |row|
Artist.find_or_create_by(row.to_hash)
end
end
end
RSpec.describe Artist, type: :model do
describe ".import" do
before :each do
create(:artist, name: 'artist1', facebook_url: nil)
create(:artist, name: 'artist2', facebook_url: "facebook_url")
end
context "when facebook_url is empty" do
it "updates facebook_url" do
#Here I should somehow stub CSV with name, facebook_url
#headers and row: artist1,artist1_facebook_url - HOW ?
Artist.import(file)
expect(Artist.find_by(name: 'artist1').facebook_url).to eq "artist1_facebook_url"
end
end
end
end
How should I stub it to make this test work ?
You can write something like:
file = CSV.generate do |csv|
csv << ["name", "facebook_url"] #hash keys
csv << ["artict1", "nil"]
csv << ["artict2", "facebook_url"]
end
# String instead of file
Then something like this:
expect(File).to receive(:open).with("filename", "r").and_return(file)
Artist.import("filename")
expect(Artist.find_by(name: 'artist1').facebook_url).to eq "artist1_facebook_url"
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