RSpec 'let'

On this page:

Basics
Performing refactoring
Examples

Basics

RubyMine implements extracting let as follows:

Introduces the initialization of let inside rspec describe/context block as the first statement.
Provides an editable template to insert the new name.
Searches for fragments in the scenarios and replaces them with the let calls.
If a fragment has been found in several scenarios(see example 3), suggests a confirmation dialog:

Performing refactoring

To perform the refactoring, follow these steps:

Open for editing an RSpec file in question.
Make the required selection.
Do one of the following:
- On the main menu, choose Refactor | Extract | RSpec 'let'.
- On the context menu of the selection, choose Refactor | Extract | RSpec 'let'.
- Press Ctrl+Shift+Alt+R.

As a results, a new let block shows up in the current RSpec block.

Examples

Before	After
`RSpec.describe "let" do it "memorizes the value 2" do # selection starts here # count = 1 count1 = count # selection ends here # expect(count).to eq(1) expect(count1).to eq(1) end end`	`RSpec.describe "let" do let(:name) do count = 1 count1 = count return count, count1 end it "memorizes the value 2" do count, count1 = name expect(count).to eq(1) expect(count1).to eq(1) end end`
`RSpec.describe "let" do it "memorizes the value" do count = 1 count.should == 1 end end`	`RSpec.describe "let" do let(:count) do count = 1 end it "memorizes the value" do count.should == 1 end end`
`RSpec.describe "let" do it "memorizes the value" do count = 1 count.should == 1 end it "memorizes the value" do count = 1 count.should == 1 end it "memorizes the value" do count = 1 count.should == 1 end end`	`RSpec.describe "let" do let(:count) do count = 1 end it "memorizes the value" do count.should == 1 end it "memorizes the value" do count.should == 1 end it "memorizes the value" do count.should == 1 end end`

Language and Framework-Specific Guidelines:

RSpec

Last modified: 18 July 2017