Quick Nimble ios test not running

I'm trying to use Quick & Nimble to test a project but the test is never executed.

I've created a project from scratch using File->New->Project in Xcode. The project is called "MyApp". Then I created a UnitTest target testing "MyApp".

I've added the following Podfile:

use_frameworks!
inhibit_all_warnings!

target 'MyApp' do
  # Pods for Test
  target "MyAppTests" do
  
      pod 'Quick'
      pod 'Nimble'
    end
end

I ran "pod install" and everything went well.

Then, I've created a test file:

import Quick
import Nimble
@testable import MyApp

class TestSpec: QuickSpec {

    override func spec() {
        describe("Describe test") {
            context("Context test") {
                it("Assertion") {
                    expect("toto") == "tata"
                }
            }
        }
    }

}

Then I ran the test. I expected my test to fail but actually: nothing. It's never executed. Do you guys have any idea why?

Thanks a lot.