vcr

require 'vcr'
VCR.configure do |c|
  c.ignore_localhost = true
  c.cassette_library_dir = 'spec/vcr_cassettes'
  c.hook_into :webmock
  c.configure_rspec_metadata!
end

RSpec.describe Api::AnyClass do
  subject { described_class.new }
  describe "#valid_credentials?" do
    context "valid", vcr: { cassette_name: "any/folder/you/like/valid" } do
      it { expect(subject.valid_credentials?(email: email, username: username, password: password, signature: signature)).to be_truthy }
    end
  end
end

Reference

• https://github.com/myronmarston/vcr
• Usage with RSpec metadata
• #291 Testing with VCR