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naturally_spec.rb
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naturally_spec.rb
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require 'naturally'
describe Naturally do
describe '#sort' do
it 'sorts an array of strings nicely as if they were legal numbers' do
a = %w[676 676.1 676.11 676.12 676.2 676.3 676.9 676.10]
b = %w[676 676.1 676.2 676.3 676.9 676.10 676.11 676.12]
Naturally.sort(a).should == b
end
it 'sorts a smaller array of strings nicely as if they were legal numbers' do
a = %w[676 676.1 676.11 676.12 676.2 676.3 676.9]
b = %w[676 676.1 676.2 676.3 676.9 676.11 676.12]
Naturally.sort(a).should == b
end
it 'sorts a more complex list of strings' do
a = %w[350 351 352 352.1 352.5 353.1 354 354.3 354.4 354.45 354.5]
b = %w[350 351 352 352.1 352.5 353.1 354 354.3 354.4 354.5 354.45]
Naturally.sort(a).should == b
end
it 'sorts when numbers have letters in them' do
a = %w[335 335.1 336a 336 337 337a 337.1 337.15 337.2]
b = %w[335 335.1 336 336a 337 337.1 337.2 337.15 337a]
Naturally.sort(a).should == b
end
it 'sorts double digits with letters correctly' do
a = %w[12a 12b 12c 13a 13b 2 3 4 5 10 11 12]
b = %w[2 3 4 5 10 11 12 12a 12b 12c 13a 13b]
Naturally.sort(a).should == b
end
end
describe '#normalize' do
it 'enables sorting objects by one particular attribute' do
Thing = Struct.new(:number, :name)
objects = [
Thing.new('1.1', 'color'),
Thing.new('1.2', 'size'),
Thing.new('1.1.1', 'opacity'),
Thing.new('1.1.2', 'lightness'),
Thing.new('1.10', 'hardness'),
Thing.new('2.1', 'weight'),
Thing.new('1.3', 'shape')
]
sorted = objects.sort_by{ |o| Naturally.normalize(o.number) }
sorted.map{|o| o.name}.should == %w[
color
opacity
lightness
size
shape
hardness
weight
]
end
end
end