```ruby
require 'spec_helper'

describe AUOM::Inspection, '#inspect' do
  subject { object.inspect }

  let(:object) { AUOM::Unit.new(scalar, *unit) }
  let(:unit) { [] }

  context 'when scalar is exact in decimal' do
    let(:scalar) { 1 }

    it { should eql("<AUOM::Unit @scalar=1>") }
  end

  context 'when scalar is NOT exact in decimal' do
    let(:scalar) { Rational(1, 2) }

    it { should eql("<AUOM::Unit @scalar=~0.5000>") }
  end

  context 'when has only numerator' do
    let(:scalar) { Rational(1, 3) }
    let(:unit) { [:meter] }

    it { should eql("<AUOM::Unit @scalar=~0.3333 meter>") }
  end

  context 'when has only denominator' do
    let(:scalar) { Rational(1, 3) }
    let(:unit) { [[], :meter] }

    it { should eql("<AUOM::Unit @scalar=~0.3333 1/meter>") }
  end

  context 'when has numerator and denominator' do
    let(:scalar) { Rational(1, 3) }
    let(:unit) { [:euro, :meter] }

    it { should eql("<AUOM::Unit @scalar=~0.3333 euro/meter>") }
  end
end
```

Use single quotes for non interpolated string literals
user
```ruby
require 'spec_helper'

describe AUOM::Inspection, '#inspect' do
  subject { object.inspect }

  let(:object) { AUOM::Unit.new(scalar, *unit) }
  let(:unit) { [] }

  context 'when scalar is exact in decimal' do
    let(:scalar) { 1 }

    it { should eql('<AUOM::Unit @scalar=1>') }
  end

  context 'when scalar is NOT exact in decimal' do
    let(:scalar) { Rational(1, 2) }

    it { should eql('<AUOM::Unit @scalar=~0.5000>') }
  end

  context 'when has only numerator' do
    let(:scalar) { Rational(1, 3) }
    let(:unit) { [:meter] }

    it { should eql('<AUOM::Unit @scalar=~0.3333 meter>') }
  end

  context 'when has only denominator' do
    let(:scalar) { Rational(1, 3) }
    let(:unit) { [[], :meter] }

    it { should eql('<AUOM::Unit @scalar=~0.3333 1/meter>') }
  end

  context 'when has numerator and denominator' do
    let(:scalar) { Rational(1, 3) }
    let(:unit) { [:euro, :meter] }

    it { should eql('<AUOM::Unit @scalar=~0.3333 euro/meter>') }
  end
end
```
assistant