require "spec_helper" require_relative "../../lib/plumbing/valve/async" require_relative "../../lib/plumbing/valve/threaded" require_relative "../../lib/plumbing/valve/rails" RSpec.describe Plumbing::Valve do # standard:disable Lint/ConstantDefinitionInBlock class Counter include Plumbing::Valve query :name, :count, :am_i_failing?, :slow_query command "slowly_increment", "raises_error" attr_reader :name, :count def initialize name, initial_value: 0 @name = name @count = initial_value end def slowly_increment sleep 0.5 @count += 1 end def slow_query sleep 0.5 @count end def am_i_failing? = raise "I'm a failure" def raises_error = raise "I'm an error" end class StepCounter < Counter query :step_value attr_reader :step_value def initialize name, initial_value: 0, step_value: 5 super(name, initial_value: initial_value) @step_value = step_value end def slowly_increment sleep 0.5 @count += @step_value end def failing_query raise "I'm a failure" end end # standard:enable Lint/ConstantDefinitionInBlock it "knows which queries are defined" do expect(Counter.queries).to eq [:name, :count, :am_i_failing?, :slow_query] end it "knows which commands are defined" do expect(Counter.commands).to eq [:slowly_increment, :raises_error] end it "raises exceptions from queries" do @counter = Counter.start "failure" expect { @counter.am_i_failing? }.to raise_error "I'm a failure" end it "does not raise exceptions from commands" do @counter = Counter.start "failure" expect { @counter.raises_error }.not_to raise_error end it "raises exceptions from queries" do @counter = Counter.start "failure" expect { @counter.am_i_failing? }.to raise_error "I'm a failure" end it "reuses existing proxy classes" do @counter = Counter.start "inline counter", initial_value: 100 @proxy_class = @counter.class @counter = Counter.start "another inline counter", initial_value: 200 expect(@counter.class).to eq @proxy_class end it "includes commands and queries from the superclass" do expect(StepCounter.queries).to eq [:name, :count, :am_i_failing?, :slow_query, :step_value] expect(StepCounter.commands).to eq [:slowly_increment, :raises_error] @step_counter = StepCounter.start "step counter", initial_value: 100, step_value: 10 expect(@step_counter.count).to eq 100 expect(@step_counter.step_value).to eq 10 @step_counter.slowly_increment expect(@step_counter.count).to eq 110 end context "inline" do around :example do |example| Plumbing.configure mode: :inline, &example end it "sends all queries immediately" do @counter = Counter.start "inline counter", initial_value: 100 @time = Time.now expect(@counter.name).to eq "inline counter" expect(@counter.count).to eq 100 expect(Time.now - @time).to be < 0.1 expect(@counter.slow_query).to eq 100 expect(Time.now - @time).to be > 0.4 end it "sends all commands immediately" do @counter = Counter.start "inline counter", initial_value: 100 @time = Time.now @counter.slowly_increment expect(@counter.count).to eq 101 expect(Time.now - @time).to be > 0.4 end end [:threaded, :async].each do |mode| context mode.to_s do around :example do |example| Sync do Plumbing.configure mode: mode, &example end end it "performs queries in the background and waits for the response" do @counter = Counter.start "async counter", initial_value: 100 @time = Time.now expect(@counter.name).to eq "async counter" expect(@counter.count).to eq 100 expect(Time.now - @time).to be < 0.1 expect(@counter.slow_query).to eq 100 expect(Time.now - @time).to be > 0.4 end it "performs queries ignoring the response and returning immediately" do @counter = Counter.start "threaded counter", initial_value: 100 @time = Time.now expect(@counter.slow_query(ignore_result: true)).to be_nil expect(Time.now - @time).to be < 0.1 end it "performs commands in the background and returning immediately" do @counter = Counter.start "threaded counter", initial_value: 100 @time = Time.now @counter.slowly_increment expect(Time.now - @time).to be < 0.1 # wait for the threaded task to complete expect(101).to become_equal_to { @counter.count } expect(Time.now - @time).to be > 0.4 end end end end