Class: MustAssertions

Inherits:
ExtraBlankSlate show all
Defined in:
lib/ruby_ext/must.rb

Direct Known Subclasses

Must, MustNot

Constant Summary

Constants inherited from ExtraBlankSlate

ExtraBlankSlate::CUSTOM_UNDEFINE

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(obj) ⇒ MustAssertions

Returns a new instance of MustAssertions.



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# File 'lib/ruby_ext/must.rb', line 6

def initialize obj
  @obj = obj
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(m, *args, &b) ⇒ Object (protected)

Raises:

  • (RuntimeError) 


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# File 'lib/ruby_ext/must.rb', line 124

def method_missing m, *args, &b
  raise RuntimeError, "Assertion '#{m}' is unknown!", caller[1..-1]
end

Instance Attribute Details

#obj ⇒ Object (readonly)

Returns the value of attribute obj.



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# File 'lib/ruby_ext/must.rb', line 4

def obj
  @obj
end

Class Method Details

.assertions ⇒ Object 



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# File 'lib/ruby_ext/must.rb', line 118

def self.assertions
  special = %w{be have}
  instance_methods.select{|m| m !~ /^__/ and m != 'be'}
end

Instance Method Details

#<(o) ⇒ Object 



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# File 'lib/ruby_ext/must.rb', line 92

def < o
  @obj < o
end

#<=(o) ⇒ Object 



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# File 'lib/ruby_ext/must.rb', line 100

def <= o
  @obj <= o
end

#==(o) ⇒ Object 



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# File 'lib/ruby_ext/must.rb', line 10

def == o
  @obj == o
end

#=~(o) ⇒ Object 



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# File 'lib/ruby_ext/must.rb', line 14

def =~ o
  @obj =~ o
end

#>(o) ⇒ Object 



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# File 'lib/ruby_ext/must.rb', line 88

def > o
  @obj > o
end

#>=(o) ⇒ Object 



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# File 'lib/ruby_ext/must.rb', line 96

def >= o
  @obj >= o
end

#a(klass) ⇒ Object Also known as: an 



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# File 'lib/ruby_ext/must.rb', line 34

def a klass
  if klass.class == Array
    klass.any?{|k| @obj.is_a? k}
  else
    @obj.is_a? klass
  end
end

#be ⇒ Object 



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# File 'lib/ruby_ext/must.rb', line 108

def be
  @prefix = 'be'
  self
end

#blank ⇒ Object 



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# File 'lib/ruby_ext/must.rb', line 80

def blank
  @obj.blank?
end

#defined ⇒ Object 



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# File 'lib/ruby_ext/must.rb', line 26

def defined
  !nil
end

#empty ⇒ Object 



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# File 'lib/ruby_ext/must.rb', line 76

def empty
  @obj.empty?
end

#exist(arg) ⇒ Object 



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# File 'lib/ruby_ext/must.rb', line 104

def exist arg
  @obj.exist? arg
end

#false ⇒ Object 



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# File 'lib/ruby_ext/must.rb', line 72

def false
  !@obj
end

#have ⇒ Object 



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# File 'lib/ruby_ext/must.rb', line 113

def have
  @prefix = 'have'
  self
end

#in(*args) ⇒ Object 



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# File 'lib/ruby_ext/must.rb', line 55

def in *args
  if args.size == 1 
    obj = args.first
    if obj.is_a?(Array) or obj.is_a?(Range)
      obj.include? @obj
    else
      args.include? @obj
    end
  else
    args.include? @obj
  end
end

#include(o) ⇒ Object

def be klass = nil

if klass.class == Array
  klass.any?{|k| @obj.respond_to :is?, k}
else
  @obj.respond_to :is?, klass
end

end



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# File 'lib/ruby_ext/must.rb', line 51

def include o
  @obj.include? o
end

#never_called ⇒ Object 



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# File 'lib/ruby_ext/must.rb', line 18

def never_called
  false
end

#nil ⇒ Object 



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# File 'lib/ruby_ext/must.rb', line 22

def nil
  @obj.equal? nil
end

#present ⇒ Object 



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# File 'lib/ruby_ext/must.rb', line 84

def present
  !@obj.blank?
end

#respond_to(method) ⇒ Object 



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# File 'lib/ruby_ext/must.rb', line 30

def respond_to method
  @obj.respond_to? method
end

#true ⇒ Object 



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# File 'lib/ruby_ext/must.rb', line 68

def true
  !!@obj
end