File: block_scanf.rb

package info (click to toggle)
ruby3.1 3.1.2-7%2Bdeb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 132,892 kB
  • sloc: ruby: 1,154,753; ansic: 736,782; yacc: 46,445; pascal: 10,401; sh: 3,931; cpp: 1,158; python: 838; makefile: 787; asm: 462; javascript: 382; lisp: 97; sed: 94; perl: 62; awk: 36; xml: 4
file content (25 lines) | stat: -rw-r--r-- 760 bytes parent folder | download | duplicates (5)
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
require 'scanf'

describe :scanf_string_block_scanf, shared: true do
  it "passes each match to the block as an array" do
    a = []
    "hello world".send(@method, "%s%s"){|w| a << w}
    a.should == [["hello", "world"]]
  end

  it "keeps scanning the input and cycling back to the beginning of the input string" do
    a = []
    "hello world".send(@method, "%s"){|w| a << w}
    a.should == [["hello"], ["world"]]

    string = "123 abc 456 def 789 ghi"
    s = string.send(@method, "%d%s"){|num,str| [num * 2, str.upcase]}
    s.should == [[246, "ABC"], [912, "DEF"], [1578, "GHI"]]
  end

  it "returns an empty array when a wrong specifier is passed" do
    a = []
    "hello world".send(@method, "%z"){|w| a << w}
    a.empty?.should be_true
  end
end