133 lines
4.4 KiB
Ruby
133 lines
4.4 KiB
Ruby
# frozen_string_literal: true
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require 'spec_helper'
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RSpec.describe ApplicationRecord do
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describe '#id_in' do
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let(:records) { create_list(:user, 3) }
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it 'returns records of the ids' do
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expect(User.id_in(records.last(2).map(&:id))).to eq(records.last(2))
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end
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end
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describe '.safe_ensure_unique' do
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let(:model) { build(:suggestion) }
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let(:klass) { model.class }
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before do
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allow(model).to receive(:save).and_raise(ActiveRecord::RecordNotUnique)
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end
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it 'returns false when ActiveRecord::RecordNotUnique is raised' do
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expect(model).to receive(:save).once
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expect(klass.safe_ensure_unique { model.save }).to be_falsey
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end
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it 'retries based on retry count specified' do
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expect(model).to receive(:save).exactly(3).times
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expect(klass.safe_ensure_unique(retries: 2) { model.save }).to be_falsey
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end
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end
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context 'safe find or create methods' do
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let_it_be(:note) { create(:diff_note_on_merge_request) }
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let(:suggestion_attributes) { attributes_for(:suggestion).merge!(note_id: note.id) }
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describe '.safe_find_or_create_by' do
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it 'creates the suggestion avoiding race conditions' do
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expect(Suggestion).to receive(:find_or_create_by).and_raise(ActiveRecord::RecordNotUnique)
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allow(Suggestion).to receive(:find_or_create_by).and_call_original
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expect { Suggestion.safe_find_or_create_by(suggestion_attributes) }
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.to change { Suggestion.count }.by(1)
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end
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it 'passes a block to find_or_create_by' do
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expect do |block|
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Suggestion.safe_find_or_create_by(suggestion_attributes, &block)
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end.to yield_with_args(an_object_having_attributes(suggestion_attributes))
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end
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it 'does not create a record when is not valid' do
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raw_usage_data = RawUsageData.safe_find_or_create_by({ recorded_at: nil })
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expect(raw_usage_data.id).to be_nil
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expect(raw_usage_data).not_to be_valid
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end
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end
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describe '.safe_find_or_create_by!' do
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it 'creates a record using safe_find_or_create_by' do
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expect(Suggestion).to receive(:find_or_create_by).and_call_original
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expect(Suggestion.safe_find_or_create_by!(suggestion_attributes))
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.to be_a(Suggestion)
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end
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it 'raises a validation error if the record was not persisted' do
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expect { Suggestion.safe_find_or_create_by!(note: nil) }
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.to raise_error(ActiveRecord::RecordInvalid)
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end
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it 'passes a block to find_or_create_by' do
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expect do |block|
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Suggestion.safe_find_or_create_by!(suggestion_attributes, &block)
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end.to yield_with_args(an_object_having_attributes(suggestion_attributes))
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end
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it 'raises a record not found error in case of attributes mismatch' do
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suggestion = Suggestion.safe_find_or_create_by!(suggestion_attributes)
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attributes = suggestion_attributes.merge(outdated: !suggestion.outdated)
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expect { Suggestion.safe_find_or_create_by!(attributes) }
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.to raise_error(ActiveRecord::RecordNotFound)
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end
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end
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end
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describe '.underscore' do
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it 'returns the underscored value of the class as a string' do
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expect(MergeRequest.underscore).to eq('merge_request')
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end
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end
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describe '.where_exists' do
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it 'produces a WHERE EXISTS query' do
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user = create(:user)
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expect(User.where_exists(User.limit(1))).to eq([user])
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end
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end
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describe '.with_fast_read_statement_timeout' do
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context 'when the query runs faster than configured timeout' do
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it 'executes the query without error' do
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result = nil
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expect do
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described_class.with_fast_read_statement_timeout(100) do
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result = described_class.connection.exec_query('SELECT 1')
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end
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end.not_to raise_error
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expect(result).not_to be_nil
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end
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end
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# This query hangs for 10ms and then gets cancelled. As there is no
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# other way to test the timeout for sure, 10ms of waiting seems to be
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# reasonable!
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context 'when the query runs longer than configured timeout' do
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it 'cancels the query and raises an exception' do
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expect do
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described_class.with_fast_read_statement_timeout(10) do
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described_class.connection.exec_query('SELECT pg_sleep(0.1)')
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end
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end.to raise_error(ActiveRecord::QueryCanceled)
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end
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end
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end
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end
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