diff options
Diffstat (limited to 'spec/ruby/core/matchdata/values_at_spec.rb')
-rw-r--r-- | spec/ruby/core/matchdata/values_at_spec.rb | 71 |
1 files changed, 63 insertions, 8 deletions
diff --git a/spec/ruby/core/matchdata/values_at_spec.rb b/spec/ruby/core/matchdata/values_at_spec.rb index 8f7fdf557c..535719a2ee 100644 --- a/spec/ruby/core/matchdata/values_at_spec.rb +++ b/spec/ruby/core/matchdata/values_at_spec.rb @@ -1,21 +1,76 @@ require_relative '../../spec_helper' describe "MatchData#values_at" do - it "returns an array of the matching value" do - /(.)(.)(\d+)(\d)/.match("THX1138: The Movie").values_at(0, 2, -2).should == ["HX1138", "X", "113"] + # Should be synchronized with core/array/values_at_spec.rb and core/struct/values_at_spec.rb + # + # /(.)(.)(\d+)(\d)/.match("THX1138: The Movie").to_a # => ["HX1138", "H", "X", "113", "8"] + + context "when passed a list of Integers" do + it "returns an array containing each value given by one of integers" do + /(.)(.)(\d+)(\d)/.match("THX1138: The Movie").values_at(0, 2, -2).should == ["HX1138", "X", "113"] + end + + it "returns nil value for any integer that is out of range" do + /(.)(.)(\d+)(\d)/.match("THX1138: The Movie").values_at(5).should == [nil] + /(.)(.)(\d+)(\d)/.match("THX1138: The Movie").values_at(-6).should == [nil] + end end - describe "when passed a Range" do - it "returns an array of the matching value" do - /(.)(.)(\d+)(\d)/.match("THX1138: The Movie").values_at(2..4, 0..1).should == ["X", "113", "8", "HX1138", "H"] + context "when passed an integer Range" do + it "returns an array containing each value given by the elements of the range" do + /(.)(.)(\d+)(\d)/.match("THX1138: The Movie").values_at(0..2).should == ["HX1138", "H", "X"] + end + + it "fills with nil values for range elements larger than the captured values number" do + /(.)(.)(\d+)(\d)/.match("THX1138: The Movie").values_at(0..5).should == ["HX1138", "H", "X", "113", "8", nil] + end + + it "raises RangeError if any element of the range is negative and out of range" do + -> { /(.)(.)(\d+)(\d)/.match("THX1138: The Movie").values_at(-6..3) }.should raise_error(RangeError, "-6..3 out of range") + end + + it "supports endless Range" do + /(.)(.)(\d+)(\d)/.match("THX1138: The Movie").values_at(0..).should == ["HX1138", "H", "X", "113", "8"] + end + + it "supports beginningless Range" do + /(.)(.)(\d+)(\d)/.match("THX1138: The Movie").values_at(..2).should == ["HX1138", "H", "X"] + end + + it "returns an empty Array when Range is empty" do + /(.)(.)(\d+)(\d)/.match("THX1138: The Movie").values_at(2..0).should == [] + end + end + + context "when passed names" do + it 'slices captures with the given names' do + /(?<a>.)(?<b>.)(?<c>.)/.match('012').values_at(:c, :a).should == ['2', '0'] + end + + it 'slices captures with the given String names' do + /(?<a>.)(?<b>.)(?<c>.)/.match('012').values_at('c', 'a').should == ['2', '0'] end end - it 'slices captures with the given names' do - /(?<a>.)(?<b>.)(?<c>.)/.match('012').values_at(:c, :a).should == ['2', '0'] + it "supports multiple integer Ranges" do + /(.)(.)(\d+)(\d)/.match("THX1138: The Movie").values_at(1..2, 2..3).should == ["H", "X", "X", "113"] end - it 'takes names and indices' do + it "supports mixing integer Ranges and Integers" do + /(.)(.)(\d+)(\d)/.match("THX1138: The Movie").values_at(1..2, 4).should == ["H", "X", "8"] + end + + it 'supports mixing of names and indices' do /\A(?<a>.)(?<b>.)\z/.match('01').values_at(0, 1, 2, :a, :b).should == ['01', '0', '1', '0', '1'] end + + it "returns a new empty Array if no arguments given" do + /(.)(.)(\d+)(\d)/.match("THX1138: The Movie").values_at().should == [] + end + + it "fails when passed arguments of unsupported types" do + -> { + /(.)(.)(\d+)(\d)/.match("THX1138: The Movie").values_at(Object.new) + }.should raise_error(TypeError, "no implicit conversion of Object into Integer") + end end |