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Project: RSpec Rails 3.5

transactional examples

By default rspec executes each individual example in a transaction.

You can also explicitly enable/disable transactions the configuration
property 'use_transactional_examples'.

Scenarios
run in transactions (default)
Given
a file named "spec/models/widget_spec.rb" with:
require "rails_helper"

RSpec.describe Widget, :type => :model do
  it "has none to begin with" do
    expect(Widget.count).to eq 0
  end

  it "has one after adding one" do
    Widget.create
    expect(Widget.count).to eq 1
  end

  it "has none after one was created in a previous example" do
    expect(Widget.count).to eq 0
  end
end
When
I run rspec spec/models/widget_spec.rb
Then
the examples should all pass
run in transactions (explicit)
Given
a file named "spec/models/widget_spec.rb" with:
require "rails_helper"

RSpec.configure do |c|
  c.use_transactional_examples = true
end

RSpec.describe Widget, :type => :model do
  it "has none to begin with" do
    expect(Widget.count).to eq 0
  end

  it "has one after adding one" do
    Widget.create
    expect(Widget.count).to eq 1
  end

  it "has none after one was created in a previous example" do
    expect(Widget.count).to eq 0
  end
end
When
I run rspec spec/models/widget_spec.rb
Then
the examples should all pass
disable transactions (explicit)
Given
a file named "spec/models/widget_spec.rb" with:
require "rails_helper"

RSpec.configure do |c|
  c.use_transactional_examples = false
  c.order = "defined"
end

RSpec.describe Widget, :type => :model do
  it "has none to begin with" do
    expect(Widget.count).to eq 0
  end

  it "has one after adding one" do
    Widget.create
    expect(Widget.count).to eq 1
  end

  it "has one after one was created in a previous example" do
    expect(Widget.count).to eq 1
  end

  after(:all) { Widget.destroy_all }
end
When
I run rspec spec/models/widget_spec.rb
Then
the examples should all pass
run in transactions with fixture
Given
a file named "spec/models/thing_spec.rb" with:
require "rails_helper"

RSpec.describe Thing, :type => :model do
  fixtures :things
  it "fixture method defined" do
    things(:one)
  end
end
Given
a file named "spec/fixtures/things.yml" with:
one:
  name: MyString
When
I run rspec spec/models/thing_spec.rb
Then
the examples should all pass

Last published almost 2 years ago by Jon Rowe.