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require "spec_helper"
RSpec.describe OpenGraphReader do
let(:invalid_object) { "<head><meta property='og:type' content='foobar' /></head>" }
describe "::fetch!" do
it "raises if there's no html" do
allow(OpenGraphReader::Fetcher).to receive(:new).and_return(double(html?: false))
expect {
OpenGraphReader.fetch! "http://example.org"
}.to raise_error OpenGraphReader::NoOpenGraphDataError
end
it "raises if there are no tags" do
fetcher = double(html?: true, url: "http://example.org", body: "")
allow(OpenGraphReader::Fetcher).to receive(:new).and_return(fetcher)
allow(OpenGraphReader::Parser).to receive(:new).and_return(double(any_tags?: false))
expect {
OpenGraphReader.fetch! "http://example.org"
}.to raise_error OpenGraphReader::NoOpenGraphDataError
end
it "raises if there's an invalid object" do
fetcher = double(html?: true, url: "http://example.org", body: invalid_object)
allow(OpenGraphReader::Fetcher).to receive(:new).and_return(fetcher)
expect {
OpenGraphReader.fetch! "http://example.org"
}.to raise_error OpenGraphReader::InvalidObjectError
end
end
describe "::fetch" do
it "does not raise if there's no html" do
allow(OpenGraphReader::Fetcher).to receive(:new).and_return(double(html?: false))
expect {
OpenGraphReader.fetch "http://example.org"
}.to_not raise_error
end
it "does not raise if there are no tags" do
fetcher = double(html?: true, url: "http://example.org", body: "")
allow(OpenGraphReader::Fetcher).to receive(:new).and_return(fetcher)
allow(OpenGraphReader::Parser).to receive(:new).and_return(double(any_tags?: false))
expect {
OpenGraphReader.fetch "http://example.org"
}.to_not raise_error
end
it "does not raise if there's an invalid object" do
fetcher = double(html?: true, url: "http://example.org", body: invalid_object)
allow(OpenGraphReader::Fetcher).to receive(:new).and_return(fetcher)
expect {
OpenGraphReader.fetch "http://example.org"
}.to_not raise_error
end
end
describe "::parse!" do
it "raises if there are no tags" do
allow(OpenGraphReader::Parser).to receive(:new).and_return(double(any_tags?: false))
expect {
OpenGraphReader.parse! ""
}.to raise_error OpenGraphReader::NoOpenGraphDataError
end
it "raises if there's an invalid object" do
expect {
OpenGraphReader.parse! invalid_object
}.to raise_error OpenGraphReader::InvalidObjectError
end
end
describe "::parse" do
it "does not raise if there are no tags" do
allow(OpenGraphReader::Parser).to receive(:new).and_return(double(any_tags?: false))
expect {
OpenGraphReader.parse ""
}.to_not raise_error
end
it "does not raise if there's an invalid object" do
expect {
OpenGraphReader.parse invalid_object
}.to_not raise_error
end
end
end
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