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A bit more extended sample spec for Ruby@FMI third task
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require 'prime' | |
describe 'Third task' do | |
describe RationalSequence do | |
it 'can calculate the first rational number' do | |
expect(RationalSequence.new(1).to_a).to eq ['1/1'.to_r] | |
end | |
it 'can calculate the 4th rational number' do | |
expect(RationalSequence.new(4).to_a).to eq %w(1/1 2/1 1/2 1/3).map(&:to_r) | |
end | |
it 'can calculate the 14th rational number' do | |
expect(RationalSequence.new(14).to_a).to eq %w(1/1 2/1 1/2 1/3 3/1 4/1 3/2 2/3 1/4 1/5 5/1 6/1 5/2 4/3).map(&:to_r) | |
end | |
it 'can calculate the 24th rational number' do | |
expect(RationalSequence.new(24).to_a).to eq %w(1/1 2/1 1/2 1/3 3/1 4/1 3/2 2/3 1/4 1/5 5/1 6/1 5/2 4/3 3/4 2/5 1/6 1/7 3/5 5/3 7/1 8/1 7/2 5/4 ).map(&:to_r) | |
end | |
it 'works fine with 0' do | |
expect(RationalSequence.new(0).to_a).to eq [] | |
end | |
end | |
describe FibonacciSequence do | |
it 'can calculate the first Fibonacci number' do | |
expect(FibonacciSequence.new(1).to_a).to eq [1] | |
end | |
it 'can calculate the first Fibonacci number with one keyword param' do | |
expect(FibonacciSequence.new(1, first: 0).to_a).to eq [0] | |
end | |
it 'can calculate the 5th Fibonacci number' do | |
expect(FibonacciSequence.new(5).to_a).to eq [1, 1, 2, 3, 5] | |
end | |
it 'can calculate the 5th Fibonacci number with one keyword param' do | |
expect(FibonacciSequence.new(5, first: 0).to_a).to eq [0, 1, 1, 2, 3] | |
end | |
it 'can calculate the 5th Fibonacci number with two keyword params' do | |
expect(FibonacciSequence.new(5, first: 0, second: 1).to_a).to eq [0, 1, 1, 2, 3] | |
end | |
end | |
describe PrimeSequence do | |
it 'can calculate the first prime (and it is not Optimus)' do | |
expect(PrimeSequence.new(1).to_a).to eq Prime.first(1) | |
end | |
it 'can calculate the 5th prime' do | |
expect(PrimeSequence.new(5).to_a).to eq Prime.first(5) | |
end | |
it 'can calculate 100th prime' do | |
expect(PrimeSequence.new(100).to_a).to eq Prime.first(100) | |
end | |
end | |
describe DrunkenMathematician do | |
it 'is drunk' do | |
expect(->_{_%_}["->_{_%%_}[%p]"]).to eq '->_{_%_}["->_{_%%_}[%p]"]' | |
end | |
describe '#meaningless' do | |
it 'can calculate for 1' do | |
expect(DrunkenMathematician.meaningless(1)).to eq Rational(1, 1) | |
end | |
it 'can calculate for 6' do | |
expect(DrunkenMathematician.meaningless(6)).to eq Rational(1, 4) | |
end | |
end | |
describe '#aimless' do | |
it 'can calculate for 2' do | |
expect(DrunkenMathematician.aimless(2)).to eq '2/3'.to_r | |
end | |
end | |
describe '#worthless' do | |
it 'can calculate for 1' do | |
expect(DrunkenMathematician.worthless(1)).to eq %w(1/1).map(&:to_r) | |
end | |
it 'can calculate for 5' do | |
expect(DrunkenMathematician.worthless(5)).to eq %W(1/1 2/1 1/2 1/3).map(&:to_r) | |
end | |
end | |
end | |
end |
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