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Fix undefined method error in sidekiq (#9807)

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* Fix undefined method error in sidekiq

Body can be not nil but still be empty, which causes a
`NoMethodError: undefined method `[]' for nil:NilClass` further in the
code. This checks for an empty body to avoid the issue.

* Fix codeclimate issue
This commit is contained in:
Renato "Lond" Cerqueira 2019-01-14 17:28:41 +01:00 committed by Eugen Rochko
parent b4e6384aea
commit 5c5e14c816
3 changed files with 26 additions and 1 deletions
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2
app/services/fetch_oembed_service.rb
View file

@ -43,7 +43,7 @@ class FetchOEmbedService
res.code != 200 ? nil : res.body_with_limit
end
validate(parse_for_format(body)) unless body.nil?
validate(parse_for_format(body)) if body.present?
rescue Oj::ParseError, Ox::ParseError
nil
end

7
spec/fixtures/requests/oembed_json_empty.html vendored Normal file
View file

@ -0,0 +1,7 @@
<!DOCTYPE html>
<html>
<head>
<link href='https://host.test/empty_provider.json' rel='alternate' type='application/json+oembed'>
</head>
<body></body>
</html>

18
spec/services/fetch_oembed_service_spec.rb
View file

@ -8,6 +8,7 @@ describe FetchOEmbedService, type: :service do
before do
stub_request(:get, "https://host.test/provider.json").to_return(status: 404)
stub_request(:get, "https://host.test/provider.xml").to_return(status: 404)
stub_request(:get, "https://host.test/empty_provider.json").to_return(status: 200)
end
describe 'discover_provider' do
@ -93,6 +94,23 @@ describe FetchOEmbedService, type: :service do
expect(subject.call('https://host.test/oembed.html')).to be_nil
end
end
context 'Empty JSON provider is discoverable' do
before do
stub_request(:get, 'https://host.test/oembed.html').to_return(
status: 200,
headers: { 'Content-Type': 'text/html' },
body: request_fixture('oembed_json_empty.html')
)
end
it 'returns new OEmbed::Provider for JSON provider' do
subject.call('https://host.test/oembed.html')
expect(subject.endpoint_url).to eq 'https://host.test/empty_provider.json'
expect(subject.format).to eq :json
end
end
end
context 'when status code is not 200' do