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# frozen_string_literal: true
RSpec.describe HTTP::FormData::Multipart do
subject(:form_data) { HTTP::FormData::Multipart.new params }
let(:file) { HTTP::FormData::File.new fixture "the-http-gem.info" }
let(:params) { { :foo => :bar, :baz => file } }
let(:boundary) { /-{21}[a-f0-9]{42}/ }
describe "#to_s" do
def disposition(params)
params = params.map { |k, v| "#{k}=#{v.inspect}" }.join("; ")
"Content-Disposition: form-data; #{params}"
end
let(:crlf) { "\r\n" }
it "properly generates multipart data" do
boundary_value = form_data.boundary
expect(form_data.to_s).to eq [
"--#{boundary_value}#{crlf}",
"#{disposition 'name' => 'foo'}#{crlf}",
"#{crlf}bar#{crlf}",
"--#{boundary_value}#{crlf}",
"#{disposition 'name' => 'baz', 'filename' => file.filename}#{crlf}",
"Content-Type: #{file.content_type}#{crlf}",
"#{crlf}#{file}#{crlf}",
"--#{boundary_value}--#{crlf}"
].join("")
end
it "rewinds content" do
content = form_data.read
expect(form_data.to_s).to eq content
expect(form_data.read).to eq content
end
context "with user-defined boundary" do
subject(:form_data) do
HTTP::FormData::Multipart.new params, :boundary => "my-boundary"
end
it "uses the given boundary" do
expect(form_data.to_s).to eq [
"--my-boundary#{crlf}",
"#{disposition 'name' => 'foo'}#{crlf}",
"#{crlf}bar#{crlf}",
"--my-boundary#{crlf}",
"#{disposition 'name' => 'baz', 'filename' => file.filename}#{crlf}",
"Content-Type: #{file.content_type}#{crlf}",
"#{crlf}#{file}#{crlf}",
"--my-boundary--#{crlf}"
].join("")
end
end
context "with filename set to nil" do
let(:part) { HTTP::FormData::Part.new("s", :content_type => "mime/type") }
let(:form_data) { HTTP::FormData::Multipart.new({ :foo => part }) }
it "doesn't include a filename" do
boundary_value = form_data.content_type[/(#{boundary})$/, 1]
expect(form_data.to_s).to eq [
"--#{boundary_value}#{crlf}",
"#{disposition 'name' => 'foo'}#{crlf}",
"Content-Type: #{part.content_type}#{crlf}",
"#{crlf}s#{crlf}",
"--#{boundary_value}--#{crlf}"
].join("")
end
end
context "with content type set to nil" do
let(:part) { HTTP::FormData::Part.new("s") }
let(:form_data) { HTTP::FormData::Multipart.new({ :foo => part }) }
it "doesn't include a filename" do
boundary_value = form_data.content_type[/(#{boundary})$/, 1]
expect(form_data.to_s).to eq [
"--#{boundary_value}#{crlf}",
"#{disposition 'name' => 'foo'}#{crlf}",
"#{crlf}s#{crlf}",
"--#{boundary_value}--#{crlf}"
].join("")
end
end
end
describe "#size" do
it "returns bytesize of multipart data" do
expect(form_data.size).to eq form_data.to_s.bytesize
end
end
describe "#read" do
it "returns multipart data" do
expect(form_data.read).to eq form_data.to_s
end
end
describe "#rewind" do
it "rewinds the multipart data IO" do
form_data.read
form_data.rewind
expect(form_data.read).to eq form_data.to_s
end
end
describe "#content_type" do
subject { form_data.content_type }
let(:content_type) { %r{^multipart\/form-data; boundary=#{boundary}$} }
it { is_expected.to match(content_type) }
context "with user-defined boundary" do
let(:form_data) do
HTTP::FormData::Multipart.new params, :boundary => "my-boundary"
end
it "includes the given boundary" do
expect(form_data.content_type)
.to eq "multipart/form-data; boundary=my-boundary"
end
end
end
describe "#content_length" do
subject { form_data.content_length }
it { is_expected.to eq form_data.to_s.bytesize }
end
describe "#boundary" do
it "returns a new boundary" do
expect(form_data.boundary).to match(boundary)
end
context "with user-defined boundary" do
let(:form_data) do
HTTP::FormData::Multipart.new params, :boundary => "my-boundary"
end
it "returns the given boundary" do
expect(form_data.boundary).to eq "my-boundary"
end
end
end
describe ".generate_boundary" do
it "returns a string suitable as a multipart boundary" do
expect(form_data.class.generate_boundary).to match(boundary)
end
end
end
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