149 lines
3.9 KiB
Ruby
149 lines
3.9 KiB
Ruby
# frozen_string_literal: true
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require 'spec_helper'
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RSpec.describe Resolvers::BaseResolver do
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include GraphqlHelpers
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let(:resolver) do
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Class.new(described_class) do
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def resolve(**args)
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process(object)
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[args, args]
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end
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def process(obj); end
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end
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end
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let(:last_resolver) do
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Class.new(described_class) do
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def resolve(**args)
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[1, 2]
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end
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end
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end
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describe '.single' do
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it 'returns a subclass from the resolver' do
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expect(resolver.single.superclass).to eq(resolver)
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end
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it 'returns the same subclass every time' do
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expect(resolver.single.object_id).to eq(resolver.single.object_id)
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end
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it 'returns a resolver that gives the first result from the original resolver' do
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result = resolve(resolver.single, args: { test: 1 })
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expect(result).to eq(test: 1)
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end
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end
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context 'when the resolver returns early' do
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let(:resolver) do
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Class.new(described_class) do
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def ready?(**args)
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[false, %w(early return)]
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end
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def resolve(**args)
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raise 'Should not get here'
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end
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end
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end
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it 'runs correctly in our test framework' do
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expect(resolve(resolver)).to contain_exactly('early', 'return')
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end
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it 'single selects the first early return value' do
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expect(resolve(resolver.single)).to eq('early')
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end
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it 'last selects the last early return value' do
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expect(resolve(resolver.last)).to eq('return')
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end
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end
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describe '.last' do
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it 'returns a subclass from the resolver' do
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expect(last_resolver.last.ancestors).to include(last_resolver)
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end
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it 'returns the same subclass every time' do
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expect(last_resolver.last.object_id).to eq(last_resolver.last.object_id)
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end
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it 'returns a resolver that gives the last result from the original resolver' do
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result = resolve(last_resolver.last)
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expect(result).to eq(2)
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end
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end
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context 'when field is a connection' do
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it 'increases complexity based on arguments' do
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field = Types::BaseField.new(name: 'test', type: GraphQL::STRING_TYPE.connection_type, resolver_class: described_class, null: false, max_page_size: 1)
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expect(field.to_graphql.complexity.call({}, { sort: 'foo' }, 1)).to eq 3
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expect(field.to_graphql.complexity.call({}, { search: 'foo' }, 1)).to eq 7
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end
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it 'does not increase complexity when filtering by iids' do
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field = Types::BaseField.new(name: 'test', type: GraphQL::STRING_TYPE.connection_type, resolver_class: described_class, null: false, max_page_size: 100)
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expect(field.to_graphql.complexity.call({}, { sort: 'foo' }, 1)).to eq 6
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expect(field.to_graphql.complexity.call({}, { sort: 'foo', iid: 1 }, 1)).to eq 3
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expect(field.to_graphql.complexity.call({}, { sort: 'foo', iids: [1, 2, 3] }, 1)).to eq 3
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end
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end
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describe '#object' do
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let_it_be(:user) { create(:user) }
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it 'returns object' do
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expect_next_instance_of(resolver) do |r|
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expect(r).to receive(:process).with(user)
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end
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resolve(resolver, obj: user)
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end
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context 'when object is a presenter' do
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it 'returns presented object' do
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expect_next_instance_of(resolver) do |r|
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expect(r).to receive(:process).with(user)
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end
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resolve(resolver, obj: UserPresenter.new(user))
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end
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end
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end
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describe '#synchronized_object' do
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let(:object) { double(foo: :the_foo) }
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let(:resolver) do
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Class.new(described_class) do
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def resolve(**args)
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[synchronized_object.foo]
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end
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end
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end
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it 'handles raw objects' do
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expect(resolve(resolver, obj: object)).to contain_exactly(:the_foo)
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end
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it 'handles lazy objects' do
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delayed = BatchLoader::GraphQL.for(1).batch do |_, loader|
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loader.call(1, object)
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end
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expect(resolve(resolver, obj: delayed)).to contain_exactly(:the_foo)
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end
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end
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end
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