Add BillSignature Model

spec/models/bill_signature_spec.rb

@@ -0,0 +1,158 @@
+require 'rails_helper'
+
+RSpec.describe BillSignature, type: :model do
+  describe 'validations' do
+    describe 'check_bill_digest' do
+      before do
+        subject.dossier_operation_logs = dossier_operation_logs
+        subject.digest = digest
+        subject.valid?
+      end
+
+      context 'no operations' do
+        let(:dossier_operation_logs) { [] }
+
+        context 'correct digest' do
+          let(:digest) { Digest::SHA256.hexdigest('{}') }
+
+          it { expect(subject.errors.details[:digest]).to be_empty }
+        end
+
+        context 'bad digest' do
+          let(:digest) { 'baadf00d' }
+
+          it { expect(subject.errors.details[:digest]).to eq [error: :invalid] }
+        end
+      end
+
+      context 'operations set, good digest' do
+        let(:dossier_operation_logs) { [build(:dossier_operation_log, id: '1234', digest: 'abcd')] }
+
+        context 'correct digest' do
+          let(:digest) { Digest::SHA256.hexdigest('{"1234":"abcd"}') }
+
+          it { expect(subject.errors.details[:digest]).to be_empty }
+        end
+
+        context 'bad digest' do
+          let(:digest) { 'baadf00d' }
+
+          it { expect(subject.errors.details[:digest]).to eq [error: :invalid] }
+        end
+      end
+    end
+
+    describe 'check_serialized_bill_contents' do
+      before do
+        subject.dossier_operation_logs = dossier_operation_logs
+        subject.serialized.attach(io: StringIO.new(serialized), filename: 'file') if serialized.present?
+        subject.valid?
+      end
+
+      context 'no operations' do
+        let(:dossier_operation_logs) { [] }
+        let(:serialized) { '{}' }
+
+        it { expect(subject.errors.details[:serialized]).to be_empty }
+      end
+
+      context 'operations set' do
+        let(:dossier_operation_logs) { [build(:dossier_operation_log, id: '1234', digest: 'abcd')] }
+        let(:serialized) { '{"1234":"abcd"}' }
+
+        it { expect(subject.errors.details[:serialized]).to be_empty }
+      end
+
+      context 'serialized not set' do
+        let(:dossier_operation_logs) { [] }
+        let(:serialized) { nil }
+
+        it { expect(subject.errors.details[:serialized]).to eq [error: :blank] }
+      end
+    end
+
+    describe 'check_signature_contents' do
+      before do
+        subject.signature.attach(io: StringIO.new(signature), filename: 'file') if signature.present?
+        allow(ASN1::Timestamp).to receive(:signature_time).and_return(signature_time)
+        allow(ASN1::Timestamp).to receive(:signed_digest).and_return(signed_digest)
+        subject.digest = digest
+        subject.valid?
+      end
+
+      context 'correct signature' do
+        let(:signature) { 'signature' }
+        let(:signature_time) { 1.day.ago }
+        let(:digest) { 'abcd' }
+        let(:signed_digest) { 'abcd' }
+
+        it { expect(subject.errors.details[:signature]).to be_empty }
+      end
+
+      context 'signature not set' do
+        let(:signature) { nil }
+        let(:signature_time) { 1.day.ago }
+        let(:digest) { 'abcd' }
+        let(:signed_digest) { 'abcd' }
+
+        it { expect(subject.errors.details[:signature]).to eq [error: :blank] }
+      end
+
+      context 'wrong signature time' do
+        let(:signature) { 'signature' }
+        let(:signature_time) { 1.day.from_now }
+        let(:digest) { 'abcd' }
+        let(:signed_digest) { 'abcd' }
+
+        it { expect(subject.errors.details[:signature]).to eq [error: :invalid_date] }
+      end
+
+      context 'wrong signature digest' do
+        let(:signature) { 'signature' }
+        let(:signature_time) { 1.day.ago }
+        let(:digest) { 'abcd' }
+        let(:signed_digest) { 'dcba' }
+
+        it { expect(subject.errors.details[:signature]).to eq [error: :invalid] }
+      end
+    end
+  end
+
+  describe '.build_with_operations' do
+    subject { described_class.build_with_operations(dossier_operation_logs, Date.new(1871, 03, 18)) }
+
+    context 'no operations' do
+      let(:dossier_operation_logs) { [] }
+
+      it { expect(subject.operations_bill).to eq({}) }
+      it { expect(subject.digest).to eq(Digest::SHA256.hexdigest('{}')) }
+      it { expect(subject.serialized.download).to eq('{}') }
+      it { expect(subject.serialized.filename).to eq('demarches-simplifiees-operations-1871-03-18.json') }
+    end
+
+    context 'one operation' do
+      let(:dossier_operation_logs) do
+        [build(:dossier_operation_log, id: '1234', digest: 'abcd')]
+      end
+
+      it { expect(subject.operations_bill).to eq({ '1234' => 'abcd' }) }
+      it { expect(subject.digest).to eq(Digest::SHA256.hexdigest('{"1234":"abcd"}')) }
+      it { expect(subject.serialized.download).to eq('{"1234":"abcd"}') }
+      it { expect(subject.serialized.filename).to eq('demarches-simplifiees-operations-1871-03-18.json') }
+    end
+
+    context 'several operations' do
+      let(:dossier_operation_logs) do
+        [
+          build(:dossier_operation_log, id: '1234', digest: 'abcd'),
+          build(:dossier_operation_log, id: '5678', digest: 'dcba')
+        ]
+      end
+
+      it { expect(subject.operations_bill).to eq({ '1234' => 'abcd', '5678' => 'dcba' }) }
+      it { expect(subject.digest).to eq(Digest::SHA256.hexdigest('{"1234":"abcd","5678":"dcba"}')) }
+      it { expect(subject.serialized.download).to eq('{"1234":"abcd","5678":"dcba"}') }
+      it { expect(subject.serialized.filename).to eq('demarches-simplifiees-operations-1871-03-18.json') }
+    end
+  end
+end