File: named_captures_spec.rb

package info (click to toggle)
ruby3.3 3.3.8-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 153,620 kB
  • sloc: ruby: 1,244,308; ansic: 836,474; yacc: 28,074; pascal: 6,748; sh: 3,913; python: 1,719; cpp: 1,158; makefile: 742; asm: 712; javascript: 394; lisp: 97; perl: 62; awk: 36; sed: 23; xml: 4
file content (35 lines) | stat: -rw-r--r-- 1,073 bytes parent folder | download | duplicates (7)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
require_relative '../../spec_helper'

describe "Regexp#named_captures" do
  it "returns a Hash" do
    /foo/.named_captures.should be_an_instance_of(Hash)
  end

  it "returns an empty Hash when there are no capture groups" do
    /foo/.named_captures.should == {}
  end

  it "sets the keys of the Hash to the names of the capture groups" do
    rex = /this (?<is>is) [aA] (?<pat>pate?rn)/
    rex.named_captures.keys.should == ['is','pat']
  end

  it "sets the values of the Hash to Arrays" do
    rex = /this (?<is>is) [aA] (?<pat>pate?rn)/
    rex.named_captures.values.each do |value|
      value.should be_an_instance_of(Array)
    end
  end

  it "sets each element of the Array to the corresponding group's index" do
    rex = /this (?<is>is) [aA] (?<pat>pate?rn)/
    rex.named_captures['is'].should == [1]
    rex.named_captures['pat'].should == [2]
  end

  it "works with duplicate capture group names" do
    rex = /this (?<is>is) [aA] (?<pat>pate?(?<is>rn))/
    rex.named_captures['is'].should == [1,3]
    rex.named_captures['pat'].should == [2]
  end
end