describe Backtrace, type: 'model' do
  describe '.find_or_create' do
    let(:lines) do
      [
        { 'number' => '123', 'file' => '/some/path/to.rb', 'method' => 'abc' },
        { 'number' => '345', 'file' => '/path/to.rb', 'method' => 'dowhat' }
      ]
    end
    let(:fingerprint) { Backtrace.generate_fingerprint(lines) }

    it 'create new backtrace' do
      backtrace = described_class.find_or_create(lines)

      expect(backtrace.lines).to eq(lines)
      expect(backtrace.fingerprint).to eq(fingerprint)
    end

    it 'creates one backtrace for two identical ones' do
      described_class.find_or_create(lines)
      described_class.find_or_create(lines)

      expect(Backtrace.where(fingerprint: fingerprint).count).to eq(1)
    end
  end
end