Generic template for distribution test cases

spec_template.rb

describe Statistical::Distribution::DistNameGoesHere do
  describe '.new' do
    context 'when called with no arguments'
    context 'when upper and lower bounds are specified'
  end
  
  describe '#pdf' do
    context 'when called with x < lower'
    context 'when called with x > upper'
    context 'when called with x in [lower, upper]'
  end
  
  describe '#cdf' do
    context 'when called with x > lower'
    context 'when called with x < upper'
    context 'when called with x in [lower, upper]'
  end
  
  describe '#quantile' do
    context 'when called for x > 1'
    context 'when called for x < 0'
    context 'when called for x in [0, 1]'
  end
  
  describe '#mean' do
    it 'should return the correct mean'
  end
  
  describe '#variance' do
    it 'should return the correct variance'
  end
  
  describe '#eql?' do
    context 'when compared against another DistNameGoesHere distribution'
    context 'when compared against any distribution type'
  end
end