discourse/plugins/chat/spec/lib/steps_inspector_spec.rb

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# frozen_string_literal: true
RSpec.describe Chat::StepsInspector do
class DummyService
include Chat::Service::Base
model :model
policy :policy
contract
transaction do
step :in_transaction_step_1
step :in_transaction_step_2
end
step :final_step
class Contract
attribute :parameter
validates :parameter, presence: true
end
end
subject(:inspector) { described_class.new(result) }
let(:parameter) { "present" }
let(:result) { DummyService.call(parameter: parameter) }
before do
class DummyService
%i[fetch_model policy in_transaction_step_1 in_transaction_step_2 final_step].each do |name|
define_method(name) { true }
end
end
end
describe "#inspect" do
subject(:output) { inspector.inspect }
context "when service runs without error" do
it "outputs all the steps of the service" do
expect(output).to eq <<~OUTPUT.chomp
[1/7] [model] 'model'
[2/7] [policy] 'policy'
[3/7] [contract] 'default'
[4/7] [transaction]
[5/7] [step] 'in_transaction_step_1'
[6/7] [step] 'in_transaction_step_2'
[7/7] [step] 'final_step'
OUTPUT
end
end
context "when the model step is failing" do
before do
class DummyService
def fetch_model
false
end
end
end
it "shows the failing step" do
expect(output).to eq <<~OUTPUT.chomp
[1/7] [model] 'model'
[2/7] [policy] 'policy'
[3/7] [contract] 'default'
[4/7] [transaction]
[5/7] [step] 'in_transaction_step_1'
[6/7] [step] 'in_transaction_step_2'
[7/7] [step] 'final_step'
OUTPUT
end
end
context "when the policy step is failing" do
before do
class DummyService
def policy
false
end
end
end
it "shows the failing step" do
expect(output).to eq <<~OUTPUT.chomp
[1/7] [model] 'model'
[2/7] [policy] 'policy'
[3/7] [contract] 'default'
[4/7] [transaction]
[5/7] [step] 'in_transaction_step_1'
[6/7] [step] 'in_transaction_step_2'
[7/7] [step] 'final_step'
OUTPUT
end
end
context "when the contract step is failing" do
let(:parameter) { nil }
it "shows the failing step" do
expect(output).to eq <<~OUTPUT.chomp
[1/7] [model] 'model'
[2/7] [policy] 'policy'
[3/7] [contract] 'default'
[4/7] [transaction]
[5/7] [step] 'in_transaction_step_1'
[6/7] [step] 'in_transaction_step_2'
[7/7] [step] 'final_step'
OUTPUT
end
end
context "when a common step is failing" do
before do
class DummyService
def in_transaction_step_2
fail!("step error")
end
end
end
it "shows the failing step" do
expect(output).to eq <<~OUTPUT.chomp
[1/7] [model] 'model'
[2/7] [policy] 'policy'
[3/7] [contract] 'default'
[4/7] [transaction]
[5/7] [step] 'in_transaction_step_1'
[6/7] [step] 'in_transaction_step_2'
[7/7] [step] 'final_step'
OUTPUT
end
end
context "when running in specs" do
context "when a successful step is flagged as being an unexpected result" do
before { result["result.policy.policy"]["spec.unexpected_result"] = true }
it "adapts its output accordingly" do
expect(output).to eq <<~OUTPUT.chomp
[1/7] [model] 'model'
[2/7] [policy] 'policy' <= expected to return false but got true instead
[3/7] [contract] 'default'
[4/7] [transaction]
[5/7] [step] 'in_transaction_step_1'
[6/7] [step] 'in_transaction_step_2'
[7/7] [step] 'final_step'
OUTPUT
end
end
context "when a failing step is flagged as being an unexpected result" do
before do
class DummyService
def policy
false
end
end
result["result.policy.policy"]["spec.unexpected_result"] = true
end
it "adapts its output accordingly" do
expect(output).to eq <<~OUTPUT.chomp
[1/7] [model] 'model'
[2/7] [policy] 'policy' <= expected to return true but got false instead
[3/7] [contract] 'default'
[4/7] [transaction]
[5/7] [step] 'in_transaction_step_1'
[6/7] [step] 'in_transaction_step_2'
[7/7] [step] 'final_step'
OUTPUT
end
end
end
end
describe "#error" do
subject(:error) { inspector.error }
context "when there are no errors" do
it "returns nothing" do
expect(error).to be_blank
end
end
context "when the model step is failing" do
before do
class DummyService
def fetch_model
false
end
end
end
it "returns an error related to the model" do
expect(error).to match(/Model not found/)
end
end
context "when the contract step is failing" do
let(:parameter) { nil }
it "returns an error related to the contract" do
expect(error).to match(/ActiveModel::Error attribute=parameter, type=blank, options={}/)
end
end
context "when a common step is failing" do
before { result["result.step.final_step"].fail(error: "my error") }
it "returns an error related to the step" do
expect(error).to eq("my error")
end
end
end
end