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require 'spec_helper'
describe 'GitlabSchema configurations' do
include GraphqlHelpers
let(:project) { create(:project) }
shared_examples 'imposing query limits' do
describe '#max_complexity' do
context 'when complexity is too high' do
it 'shows an error' do
allow(GitlabSchema).to receive(:max_query_complexity).and_return 1
subject
expect(graphql_errors.flatten.first['message']).to include('which exceeds max complexity of 1')
end
end
end
describe '#max_depth' do
context 'when query depth is too high' do
it 'shows error' do
errors = { "message" => "Query has depth of 2, which exceeds max depth of 1" }
allow(GitlabSchema).to receive(:max_query_depth).and_return 1
subject
expect(graphql_errors.flatten).to include(errors)
end
end
context 'when query depth is within range' do
it 'has no error' do
allow(GitlabSchema).to receive(:max_query_depth).and_return 5
subject
expect(Array.wrap(graphql_errors).compact).to be_empty
end
end
end
end
context 'regular queries' do
subject do
query = graphql_query_for('project', { 'fullPath' => project.full_path }, %w(id name description))
post_graphql(query)
end
it_behaves_like 'imposing query limits'
end
context 'multiplexed queries' do
subject do
queries = [
{ query: graphql_query_for('project', { 'fullPath' => project.full_path }, %w(id name description)) },
{ query: graphql_query_for('echo', { 'text' => "$test" }, []), variables: { "test" => "Hello world" } }
]
post_multiplex(queries)
end
it_behaves_like 'imposing query limits' do
it "fails all queries when only one of the queries is too complex" do
# The `project` query above has a complexity of 5
allow(GitlabSchema).to receive(:max_query_complexity).and_return 4
subject
# Expect a response for each query, even though it will be empty
expect(json_response.size).to eq(2)
json_response.each do |single_query_response|
expect(single_query_response).not_to have_key('data')
end
# Expect errors for each query
expect(graphql_errors.size).to eq(2)
graphql_errors.each do |single_query_errors|
expect(single_query_errors.first['message']).to include('which exceeds max complexity of 4')
end
end
end
end
context 'when IntrospectionQuery' do
it 'is not too complex' do
query = File.read(Rails.root.join('spec/fixtures/api/graphql/introspection.graphql'))
post_graphql(query, current_user: nil)
expect(graphql_errors).to be_nil
end
end
end
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