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A minor change for ProviderDiscovery and spec (#3543) 

* Do not default the format in ProviderDiscovery

The format should be determined when discovering, as it is in the current
implementation, and it is a flaw if it is not determined.

* Spec ProviderDiscovery
This commit is contained in:
Akihiko Odaki (@fn_aki@pawoo.net) 2017-06-04 21:59:40 +09:00 committed by Eugen Rochko
parent c7af8cbc90
commit e674608d10
7 changed files with 153 additions and 1 deletions
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2
app/lib/provider_discovery.rb
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@ -31,7 +31,7 @@ class ProviderDiscovery < OEmbed::ProviderDiscovery
raise OEmbed::NotFound, url
end
OEmbed::Provider.new(provider_endpoint, format || OEmbed::Formatter.default)
OEmbed::Provider.new(provider_endpoint, format)
end
end
end

7
spec/fixtures/requests/oembed_invalid_xml.html vendored Normal file
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@ -0,0 +1,7 @@
<!DOCTYPE html>
<html>
<head>
<link href=':' rel='alternate' type='application/xml+oembed'>
</head>
<body></body>
</html>

7
spec/fixtures/requests/oembed_json.html vendored Normal file
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@ -0,0 +1,7 @@
<!DOCTYPE html>
<html>
<head>
<link href='https://host/provider.json' rel='alternate' type='application/json+oembed'>
</head>
<body></body>
</html>

8
spec/fixtures/requests/oembed_json_xml.html vendored Normal file
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@ -0,0 +1,8 @@
<!DOCTYPE html>
<html>
<head>
<link href='https://host/provider.json' rel='alternate' type='application/json+oembed'>
<link href='https://host/provider.xml' rel='alternate' type='application/xml+oembed'>
</head>
<body></body>
</html>

5
spec/fixtures/requests/oembed_undiscoverable.html vendored Normal file
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@ -0,0 +1,5 @@
<!DOCTYPE html>
<html>
<head></head>
<body></body>
</html>

7
spec/fixtures/requests/oembed_xml.html vendored Normal file
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@ -0,0 +1,7 @@
<!DOCTYPE html>
<html>
<head>
<link href='https://host/provider.xml' rel='alternate' type='application/xml+oembed'>
</head>
<body></body>
</html>

118
spec/lib/provider_discovery_spec.rb Normal file
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@ -0,0 +1,118 @@
# frozen_string_literal: true
require 'rails_helper'
describe ProviderDiscovery do
describe 'discover_provider' do
context 'when status code is 200 and MIME type is text/html' do
context 'Both of JSON and XML provider are discoverable' do
before do
stub_request(:get, 'https://host/oembed.html').to_return(
status: 200,
headers: { 'Content-Type': 'text/html' },
body: request_fixture('oembed_json_xml.html')
)
end
it 'returns new OEmbed::Provider for JSON provider if :format option is set to :json' do
provider = ProviderDiscovery.discover_provider('https://host/oembed.html', format: :json)
expect(provider.endpoint).to eq 'https://host/provider.json'
expect(provider.format).to eq :json
end
it 'returns new OEmbed::Provider for XML provider if :format option is set to :xml' do
provider = ProviderDiscovery.discover_provider('https://host/oembed.html', format: :xml)
expect(provider.endpoint).to eq 'https://host/provider.xml'
expect(provider.format).to eq :xml
end
end
context 'JSON provider is discoverable while XML provider is not' do
before do
stub_request(:get, 'https://host/oembed.html').to_return(
status: 200,
headers: { 'Content-Type': 'text/html' },
body: request_fixture('oembed_json.html')
)
end
it 'returns new OEmbed::Provider for JSON provider' do
provider = ProviderDiscovery.discover_provider('https://host/oembed.html')
expect(provider.endpoint).to eq 'https://host/provider.json'
expect(provider.format).to eq :json
end
end
context 'XML provider is discoverable while JSON provider is not' do
before do
stub_request(:get, 'https://host/oembed.html').to_return(
status: 200,
headers: { 'Content-Type': 'text/html' },
body: request_fixture('oembed_xml.html')
)
end
it 'returns new OEmbed::Provider for XML provider' do
provider = ProviderDiscovery.discover_provider('https://host/oembed.html')
expect(provider.endpoint).to eq 'https://host/provider.xml'
expect(provider.format).to eq :xml
end
end
context 'Invalid XML provider is discoverable while JSON provider is not' do
before do
stub_request(:get, 'https://host/oembed.html').to_return(
status: 200,
headers: { 'Content-Type': 'text/html' },
body: request_fixture('oembed_invalid_xml.html')
)
end
it 'raises OEmbed::NotFound' do
expect { ProviderDiscovery.discover_provider('https://host/oembed.html') }.to raise_error OEmbed::NotFound
end
end
context 'Neither of JSON and XML provider is discoverable' do
before do
stub_request(:get, 'https://host/oembed.html').to_return(
status: 200,
headers: { 'Content-Type': 'text/html' },
body: request_fixture('oembed_undiscoverable.html')
)
end
it 'raises OEmbed::NotFound' do
expect { ProviderDiscovery.discover_provider('https://host/oembed.html') }.to raise_error OEmbed::NotFound
end
end
end
context 'when status code is not 200' do
before do
stub_request(:get, 'https://host/oembed.html').to_return(
status: 400,
headers: { 'Content-Type': 'text/html' },
body: request_fixture('oembed_xml.html')
)
end
it 'raises OEmbed::NotFound' do
expect { ProviderDiscovery.discover_provider('https://host/oembed.html') }.to raise_error OEmbed::NotFound
end
end
context 'when MIME type is not text/html' do
before do
stub_request(:get, 'https://host/oembed.html').to_return(
status: 200,
body: request_fixture('oembed_xml.html')
)
end
it 'raises OEmbed::NotFound' do
expect { ProviderDiscovery.discover_provider('https://host/oembed.html') }.to raise_error OEmbed::NotFound
end
end
end
end