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require_relative '../../spec_helper'
begin
require 'cgi/escape'
rescue LoadError
require 'cgi'
end
describe "CGI.escapeURIComponent" do
it "percent-encodes characters reserved according to RFC 3986" do
# https://www.rfc-editor.org/rfc/rfc3986#section-2.2
string = ":/?#[]@!$&'()*+,;="
CGI.escapeURIComponent(string).should == "%3A%2F%3F%23%5B%5D%40%21%24%26%27%28%29%2A%2B%2C%3B%3D"
end
it "does not percent-encode unreserved characters according to RFC 3986" do
string = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~"
CGI.escapeURIComponent(string).should == "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~"
end
it "encodes % character as %25" do
CGI.escapeURIComponent("%").should == "%25"
end
# Compare to .escape which uses "+".
it "percent-encodes single whitespace" do
CGI.escapeURIComponent(" ").should == "%20"
end
it "percent-encodes all non-reserved and non-unreserved ASCII characters" do
special_set = ":/?#[]@!$&'()*+,;=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~"
all_other = (0x00..0x7F).filter_map { |i| i.chr unless special_set.include?(i.chr) }.join
encoded = CGI.escapeURIComponent(all_other)
encoded.should.match?(/\A(?:%[0-9A-F]{2}){#{all_other.length}}\z/)
end
it "percent-encodes non-ASCII bytes" do
bytes = (0x80..0xFF).map(&:chr).join
encoded = CGI.escapeURIComponent(bytes)
encoded.should.match?(/\A(?:%[0-9A-F]{2}){#{bytes.length}}\z/)
end
it "processes multi-byte characters as separate bytes, percent-encoding each one" do
CGI.escapeURIComponent("β").should == "%CE%B2" # "β" bytes representation is CE B2
end
it "produces a copy of an empty string" do
string = "".encode(Encoding::BINARY)
encoded = CGI.escapeURIComponent(string)
encoded.should == ""
encoded.encoding.should == Encoding::BINARY
string.should_not.equal?(encoded)
end
it "preserves string's encoding" do
string = "whatever".encode("ASCII-8BIT")
CGI.escapeURIComponent(string).encoding.should == Encoding::ASCII_8BIT
end
it "processes even strings with invalid encoding, percent-encoding octets as-is" do
string = "\xC0<<".dup.force_encoding("UTF-8")
CGI.escapeURIComponent(string).should == "%C0%3C%3C"
end
it "raises a TypeError with nil" do
-> {
CGI.escapeURIComponent(nil)
}.should raise_error(TypeError, "no implicit conversion of nil into String")
end
it "uses implicit type conversion to String" do
object = Object.new
def object.to_str
"a b"
end
CGI.escapeURIComponent(object).should == "a%20b"
end
end
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