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ruby--ruby/spec/ruby/optional/capi/regexp_spec.rb

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require File.expand_path('../spec_helper', __FILE__)
load_extension("regexp")
describe "C-API Regexp function" do
before :each do
@p = CApiRegexpSpecs.new
end
describe "rb_reg_new" do
it "returns a new valid Regexp" do
my_re = @p.a_re
my_re.kind_of?(Regexp).should == true
('1a' =~ my_re).should == 1
('1b' =~ my_re).should == nil
my_re.source.should == 'a'
end
end
describe "rb_reg_nth_match" do
it "returns a the appropriate match data entry" do
@p.a_re_1st_match(/([ab])/.match("a")).should == 'a'
@p.a_re_1st_match(/([ab])/.match("b")).should == 'b'
@p.a_re_1st_match(/[ab]/.match("a")).should == nil
@p.a_re_1st_match(/[ab]/.match("c")).should == nil
end
end
describe "rb_reg_options" do
it "returns the options used to create the regexp" do
@p.rb_reg_options(/42/im).should == //im.options
@p.rb_reg_options(/42/i).should == //i.options
@p.rb_reg_options(/42/m).should == //m.options
end
end
describe "rb_reg_regcomp" do
it "creates a valid regexp from a string" do
regexp = /\b([A-Z0-9._%+-]+)\.{2,4}/
@p.rb_reg_regcomp(regexp.source).should == regexp
end
end
it "allows matching in C, properly setting the back references" do
mail_regexp = /\b([A-Z0-9._%+-]+)@([A-Z0-9.-]+\.[A-Z]{2,4})\b/i
name = "john.doe"
domain = "example.com"
@p.match(mail_regexp, "#{name}@#{domain}")
$1.should == name
$2.should == domain
end
describe "rb_reg_match" do
it "returns the matched position or nil" do
@p.rb_reg_match(/a/, 'ab').should == 0
@p.rb_reg_match(/b/, 'ab').should == 1
@p.rb_reg_match(/c/, 'ab').should == nil
end
end
describe "rb_backref_get" do
it "returns the last MatchData" do
md = /a/.match('ab')
@p.rb_backref_get.should == md
md = /b/.match('ab')
@p.rb_backref_get.should == md
md = /c/.match('ab')
@p.rb_backref_get.should == md
end
end
end