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$VERBOSE = true
class ::String
# Stub the original method to make sure it is redefined correctly.
def blank?
raise NotImplementedError
end
def blank2?
/\A[[:space:]]*\z/ === self
end
end
require 'fast_blank'
describe String do
it "works" do
expect("".blank?).to eq(true)
expect(" ".blank?).to eq(true)
expect("\r\n".blank?).to eq(true)
"\r\n\v\f\r\s\u0085".blank? == true
end
it "provides a parity with active support function" do
(16*16*16*16).times do |i|
c = i.chr('UTF-8') rescue nil
unless c.nil?
expect("#{i.to_s(16)} #{c.blank_as?}").to eq("#{i.to_s(16)} #{c.blank2?}")
end
end
(256).times do |i|
c = i.chr('ASCII') rescue nil
unless c.nil?
expect("#{i.to_s(16)} #{c.blank_as?}").to eq("#{i.to_s(16)} #{c.blank2?}")
end
end
end
it "has parity with strip.length" do
(256).times do |i|
c = i.chr('ASCII') rescue nil
unless c.nil?
expect("#{i.to_s(16)} #{c.strip.length == 0}").to eq("#{i.to_s(16)} #{c.blank?}")
end
end
end
it "treats \u0000 correctly" do
# odd I know
expect("\u0000".strip.length).to eq(0)
expect("\u0000".blank_as?).to be_falsey
expect("\u0000".blank?).to be_truthy
end
end
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