canvas-lms/spec/graphql/postgres_statement_timeout_...

78 lines
2.3 KiB
Ruby

# frozen_string_literal: true
#
# Copyright (C) 2018 Instructure, Inc.
#
# This file is part of Canvas.
#
# Canvas is free software: you can redistribute it and/or modify it under
# the terms of the GNU Affero General Public License as published by the Free
# Software Foundation, version 3 of the License.
#
# Canvas is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
# details.
#
# You should have received a copy of the GNU Affero General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.
#
require File.expand_path(File.dirname(__FILE__) + '/../spec_helper.rb')
require_relative "./graphql_spec_helper"
describe "graphql pg statement_timeouts" do
before(:once) do
course_with_student(active_all: true)
QUERY = %|query { course(id: "#{@course.id}") { name } }|
MUTATION = %|mutation { updateAssignment(input: {id: "1"}) { assignment { name } } }|
end
def make_stuff_slow
allow_any_instance_of(Course).to receive(:name) {
ActiveRecord::Base.connection.execute("SELECT pg_sleep(0.002)")
"asdf"
}
allow(Assignment).to receive(:find) {
ActiveRecord::Base.connection.execute("SELECT pg_sleep(0.002)")
raise ActiveRecord::RecordNotFound
}
end
context "queries" do
it "works when fast" do
make_stuff_slow
expect {
CanvasSchema.execute(QUERY, context: {current_user: @teacher})
}.not_to raise_error
end
it "fails when slow" do
make_stuff_slow
Setting.set('graphql_statement_timeout', 1)
expect {
CanvasSchema.execute(QUERY, context: {current_user: @teacher})
}.to raise_error(GraphQLPostgresTimeout::Error)
end
end
context "mutations" do
it "works when fast" do
make_stuff_slow
expect {
CanvasSchema.execute(MUTATION, context: {current_user: @teacher})
}.not_to raise_error
end
it "fails when slow" do
make_stuff_slow
Setting.set('graphql_statement_timeout', 1)
result = CanvasSchema.execute(MUTATION, context: {current_user: @teacher})
expect(result.dig("data", "updateAssignment")).to be_nil
expect(result.dig("errors", 0, "path")).to eq ["updateAssignment"]
end
end
end