diff options
Diffstat (limited to 'spec/ruby/library/stringscanner/element_reference_spec.rb')
-rw-r--r-- | spec/ruby/library/stringscanner/element_reference_spec.rb | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/spec/ruby/library/stringscanner/element_reference_spec.rb b/spec/ruby/library/stringscanner/element_reference_spec.rb new file mode 100644 index 0000000000..c9acb1c7e7 --- /dev/null +++ b/spec/ruby/library/stringscanner/element_reference_spec.rb @@ -0,0 +1,61 @@ +require File.expand_path('../../../spec_helper', __FILE__) +require 'strscan' + +describe "StringScanner#[]" do + before :each do + @s = StringScanner.new("Fri Jun 13 2008 22:43") + end + + it "returns nil if there is no current match" do + @s[0].should be_nil + end + + it "returns the n-th subgroup in the most recent match" do + @s.scan(/(\w+) (\w+) (\d+) /) + @s[0].should == "Fri Jun 13 " + @s[1].should == "Fri" + @s[2].should == "Jun" + @s[3].should == "13" + @s[-3].should == "Fri" + @s[-2].should == "Jun" + @s[-1].should == "13" + end + + it "returns nil if index is outside of self" do + @s.scan(/(\w+) (\w+) (\d+) /) + @s[5].should == nil + @s[-5].should == nil + end + + it "calls to_int on the given index" do + @s.scan(/(\w+) (\w+) (\d+) /) + @s[0.5].should == "Fri Jun 13 " + end + + it "raises a TypeError if the given index is nil" do + @s.scan(/(\w+) (\w+) (\d+) /) + lambda { @s[nil]}.should raise_error(TypeError) + end + + it "raises a TypeError when a Range is as argument" do + @s.scan(/(\w+) (\w+) (\d+) /) + lambda { @s[0..2]}.should raise_error(TypeError) + end + + it "raises a IndexError when there's no named capture" do + @s.scan(/(\w+) (\w+) (\d+) /) + lambda { @s["wday"]}.should raise_error(IndexError) + lambda { @s[:wday]}.should raise_error(IndexError) + end + + it "returns named capture" do + @s.scan(/(?<wday>\w+) (?<month>\w+) (?<day>\d+) /) + @s["wday"].should == "Fri" + @s["month"].should == "Jun" + @s["day"].should == "13" + @s[:wday].should == "Fri" + @s[:month].should == "Jun" + @s[:day].should == "13" + end +end + |