File: singleton_class_spec.rb

package info (click to toggle)
ruby2.5 2.5.5-3%2Bdeb10u4
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 101,532 kB
  • sloc: ruby: 732,598; ansic: 669,262; xml: 25,363; yacc: 20,963; javascript: 6,680; sh: 3,610; lisp: 2,627; makefile: 596; python: 198; sed: 76; perl: 62; awk: 36; asm: 35
file content (27 lines) | stat: -rw-r--r-- 705 bytes parent folder | download | duplicates (2)
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
require File.expand_path('../../../spec_helper', __FILE__)

describe "Module#singleton_class?" do
  it "returns true for singleton classes" do
    xs = self.singleton_class
    xs.singleton_class?.should == true
  end

  it "returns false for other classes" do
    c = Class.new
    c.singleton_class?.should == false
  end

  describe "with singleton values" do
    it "returns false for nil's singleton class" do
      NilClass.singleton_class?.should == false
    end

    it "returns false for true's singleton class" do
      TrueClass.singleton_class?.should == false
    end

    it "returns false for false's singleton class" do
      FalseClass.singleton_class?.should == false
    end
  end
end