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# frozen_string_literal: true
# Released under the MIT License.
# Copyright, 2025, by Samuel Williams.
require "protocol/http/header/accept_encoding"
describe Protocol::HTTP::Header::AcceptEncoding::Encoding do
it "should have default quality_factor of 1.0" do
encoding = subject.new("utf-8", nil)
expect(encoding.quality_factor).to be == 1.0
end
end
describe Protocol::HTTP::Header::AcceptEncoding do
let(:header) {subject.new(description)}
let(:encodings) {header.encodings.sort}
with "gzip, deflate;q=0.5, identity;q=0.25" do
it "can parse charsets" do
expect(header.length).to be == 3
expect(encodings[0].name).to be == "gzip"
expect(encodings[0].quality_factor).to be == 1.0
expect(encodings[1].name).to be == "deflate"
expect(encodings[1].quality_factor).to be == 0.5
expect(encodings[2].name).to be == "identity"
expect(encodings[2].quality_factor).to be == 0.25
end
end
with "identity;q=0.25, deflate;q=0.5, gzip" do
it "should order based on quality factor" do
expect(encodings.collect(&:name)).to be == %w{gzip deflate identity}
end
end
with "br,deflate;q=0.8,identity;q=0.6,gzip" do
it "should order based on quality factor" do
expect(encodings.collect(&:name)).to be == %w{br gzip deflate identity}
end
end
with "*;q=0" do
it "should accept wildcard encoding" do
expect(encodings[0].name).to be == "*"
expect(encodings[0].quality_factor).to be == 0
end
end
with "br, gzip;q=0.5, deflate;q=0.5" do
it "should preserve relative order" do
expect(encodings[0].name).to be == "br"
expect(encodings[1].name).to be == "gzip"
expect(encodings[2].name).to be == "deflate"
end
end
it "should not accept invalid input" do
bad_values = [
# Invalid quality factor:
"br;f=1",
# Invalid parameter:
"br;gzip",
# Invalid use of separator:
";",
# Empty (we ignore this one):
# ","
]
bad_values.each do |value|
expect{subject.new(value).encodings}.to raise_exception(subject::ParseError)
end
end
end
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