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Diffstat (limited to 'spec/ruby/core/matchdata/names_spec.rb')
-rw-r--r-- | spec/ruby/core/matchdata/names_spec.rb | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/spec/ruby/core/matchdata/names_spec.rb b/spec/ruby/core/matchdata/names_spec.rb new file mode 100644 index 0000000000..e298c85593 --- /dev/null +++ b/spec/ruby/core/matchdata/names_spec.rb @@ -0,0 +1,33 @@ +require File.expand_path('../../../spec_helper', __FILE__) + +describe "MatchData#names" do + it "returns an Array" do + md = 'haystack'.match(/(?<yellow>hay)/) + md.names.should be_an_instance_of(Array) + end + + it "sets each element to a String" do + 'haystack'.match(/(?<yellow>hay)/).names.all? do |e| + e.should be_an_instance_of(String) + end + end + + it "returns the names of the named capture groups" do + md = 'haystack'.match(/(?<yellow>hay).(?<pin>tack)/) + md.names.should == ['yellow', 'pin'] + end + + it "returns [] if there were no named captures" do + 'haystack'.match(/(hay).(tack)/).names.should == [] + end + + it "returns each name only once" do + md = 'haystack'.match(/(?<hay>hay)(?<dot>.)(?<hay>tack)/) + md.names.should == ['hay', 'dot'] + end + + it "equals Regexp#names" do + r = /(?<hay>hay)(?<dot>.)(?<hay>tack)/ + 'haystack'.match(r).names.should == r.names + end +end |