Snabbreferens

RSpec Rails fusklapp

En snabb referensguide för rspec-rails: modellspecs, request-specs, systemspecs och databastransaktioner.

· Publicerad

rspec-rails integrerar RSpec-testramverket i Ruby on Rails.

Installation och inställning

Lägg till i Gemfile:

group :development, :test do
  gem 'rspec-rails', '~> 6.1.0'
end

Initiera spec-kataloger:

bin/rails generate rspec:install

Modellspecs (spec/models/)

require 'rails_helper'

RSpec.describe User, type: :model do
  it "is valid with valid attributes" do
    user = User.new(name: "Alice", email: "[email protected]")
    expect(user).to be_valid
  end

  it "is invalid without an email" do
    user = User.new(name: "Alice", email: nil)
    expect(user).not_to be_valid
    expect(user.errors[:email]).to include("can't be blank")
  end
end

Request-specs (spec/requests/)

Request-specs testar hela HTTP-begäranscykler:

require 'rails_helper'

RSpec.describe "Articles API", type: :request do
  describe "GET /articles" do
    it "returns HTTP success and lists articles" do
      get "/articles", headers: { "Accept" => "application/json" }

      expect(response).to have_http_status(:ok)
      json = JSON.parse(response.body)
      expect(json).to be_an(Array)
    end
  end
end

Systemspecs med Capybara

require 'rails_helper'

RSpec.describe "User Login", type: :system do
  before do
    driven_by(:selenium_chrome_headless)
  end

  it "allows user to sign in" do
    visit login_path
    fill_in "Email", with: "[email protected]"
    fill_in "Password", with: "secret123"
    click_button "Sign in"

    expect(page).to have_content("Welcome back!")
  end
end

Referenser

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