279 lines
7.2 KiB
Ruby
279 lines
7.2 KiB
Ruby
# frozen_string_literal: true
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require 'spec_helper'
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RSpec.describe Resolvers::BaseResolver, feature_category: :api 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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argument :test, ::GraphQL::Types::Int, required: false
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type [::GraphQL::Types::Int], null: true
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def resolve(test: 100)
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process(object)
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[test, test]
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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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type [::GraphQL::Types::Int], null: true
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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 '.singular_type' do
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subject { resolver.singular_type }
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context 'for a connection of scalars' do
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let(:resolver) do
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Class.new(described_class) do
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type ::GraphQL::Types::Int.connection_type, null: true
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end
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end
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it { is_expected.to eq(::GraphQL::Types::Int) }
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end
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context 'for a connection of objects' do
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let(:object) do
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Class.new(::Types::BaseObject) do
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graphql_name 'Foo'
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end
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end
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let(:resolver) do
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conn = object.connection_type
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Class.new(described_class) do
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type conn, null: true
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end
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end
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it { is_expected.to eq(object) }
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end
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context 'for a list type' do
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let(:resolver) do
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Class.new(described_class) do
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type [::GraphQL::Types::String], null: true
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end
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end
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it { is_expected.to eq(::GraphQL::Types::String) }
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end
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context 'for a scalar type' do
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let(:resolver) do
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Class.new(described_class) do
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type ::GraphQL::Types::Boolean, null: true
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end
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end
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it { is_expected.to eq(::GraphQL::Types::Boolean) }
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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 'has the correct (singular) type' do
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expect(resolver.single.type).to eq(::GraphQL::Types::Int)
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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(1)
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end
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end
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describe '.when_single' do
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let(:resolver) do
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Class.new(described_class) do
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type [::GraphQL::Types::Int], null: true
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when_single do
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argument :foo, ::GraphQL::Types::Int, required: true
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end
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def resolve(foo: 1)
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[foo * foo]
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end
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end
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end
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it 'does not apply the block to the resolver' do
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expect(resolver.arguments).to be_empty
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result = resolve(resolver)
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expect(result).to eq([1])
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end
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it 'applies the block to the single version of the resolver' do
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expect(resolver.single.arguments).to match('foo' => an_instance_of(::Types::BaseArgument))
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result = resolve(resolver.single, args: { foo: 7 })
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expect(result).to eq(49)
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end
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context 'multiple when_single blocks' do
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let(:resolver) do
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Class.new(described_class) do
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type [::GraphQL::Types::Int], null: true
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when_single do
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argument :foo, ::GraphQL::Types::Int, required: true
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end
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when_single do
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argument :bar, ::GraphQL::Types::Int, required: true
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end
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def resolve(foo: 1, bar: 2)
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[foo * bar]
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end
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end
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end
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it 'applies both blocks to the single version of the resolver' do
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expect(resolver.single.arguments).to match('foo' => ::Types::BaseArgument, 'bar' => ::Types::BaseArgument)
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result = resolve(resolver.single, args: { foo: 7, bar: 5 })
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expect(result).to eq(35)
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end
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end
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context 'inheritance' do
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let(:subclass) do
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Class.new(resolver) do
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when_single do
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argument :inc, ::GraphQL::Types::Int, required: true
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end
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def resolve(foo:, inc:)
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super(foo: foo + inc)
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end
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end
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end
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it 'applies both blocks to the single version of the resolver' do
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expect(resolver.single.arguments).to match('foo' => ::Types::BaseArgument)
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expect(subclass.single.arguments).to match('foo' => ::Types::BaseArgument, 'inc' => ::Types::BaseArgument)
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result = resolve(subclass.single, args: { foo: 7, inc: 1 })
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expect(result).to eq(64)
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end
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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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type [::GraphQL::Types::String], null: true
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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::Types::String.connection_type, resolver_class: described_class, null: false, max_page_size: 1)
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expect(field.complexity.call({}, { sort: 'foo' }, 1)).to eq 3
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expect(field.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::Types::String.connection_type, resolver_class: described_class, null: false, max_page_size: 100)
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expect(field.complexity.call({}, { sort: 'foo' }, 1)).to eq 6
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expect(field.complexity.call({}, { sort: 'foo', iid: 1 }, 1)).to eq 3
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expect(field.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 '#offset_pagination' do
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let(:instance) { resolver_instance(resolver) }
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it 'is sugar for OffsetPaginatedRelation.new' do
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expect(instance.offset_pagination(User.none)).to be_a(::Gitlab::Graphql::Pagination::OffsetPaginatedRelation)
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end
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end
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end
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