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# frozen_string_literal: true
RSpec.shared_examples_for 'value stream analytics event' do
let(:params) { {} }
let(:instance) { described_class.new(params) }
let(:expected_hash_code) { Digest::SHA256.hexdigest(instance.class.identifier.to_s) }
it { expect(described_class.name).to be_a_kind_of(String) }
it { expect(described_class.identifier).to be_a_kind_of(Symbol) }
it { expect(instance.object_type.ancestors).to include(ApplicationRecord) }
it { expect(instance).to respond_to(:timestamp_projection) }
it { expect(instance).to respond_to(:html_description) }
it { expect(instance.column_list).to be_a_kind_of(Array) }
describe '#apply_query_customization' do
it 'expects an ActiveRecord::Relation object as argument and returns a modified version of it' do
input_query = instance.object_type.all
output_query = instance.apply_query_customization(input_query)
expect(output_query).to be_a_kind_of(ActiveRecord::Relation)
end
end
describe '#hash_code' do
it 'returns a hash that uniquely identifies an event' do
expect(instance.hash_code).to eq(expected_hash_code)
end
it 'does not differ when the same object is built with the same params' do
another_instance_with_same_params = described_class.new(params)
expect(another_instance_with_same_params.hash_code).to eq(instance.hash_code)
end
end
end
RSpec.shared_examples_for 'LEFT JOIN-able value stream analytics event' do
let(:params) { {} }
let(:instance) { described_class.new(params) }
let(:record_with_data) { nil }
let(:record_without_data) { nil }
let(:scope) { instance.object_type.all }
let(:records) do
scope_with_left_join = instance.include_in(scope)
scope_with_left_join.select(scope.model.arel_table[:id], instance.timestamp_projection.as('timestamp_column_data')).to_a
end
it 'can use the event as LEFT JOIN' do
expected_record_count = record_without_data.nil? ? 1 : 2
expect(records.count).to eq(expected_record_count)
end
context 'when looking at the record with data' do
subject(:record) { records.to_a.find { |r| r.id == record_with_data.id } }
it 'contains the timestamp expression' do
expect(record.timestamp_column_data).not_to eq(nil)
end
end
context 'when looking at the record without data' do
subject(:record) { records.to_a.find { |r| r.id == record_without_data.id } }
it 'returns nil for the timestamp expression' do
expect(record.timestamp_column_data).to eq(nil) if record_without_data
end
end
end
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