Cypress session validation failure results in a 'existingSession.setup is not a function' error

Current behavior

While using the new experimental feature sessions in cypress 8.2.0, adding a session validation routine does not seem to work correctly. Specifically, when a session exists, but the validation routine returns false, an error is thrown saying that the setup function does not exist.

Here is a sample block of code that can reproduce this issue:

When running this for the first time:

When re-running this test:

Desired behavior

Cypress should fail the validation, and re-run the setup function as specified in the docs. For some reason, the current code somehow loses the setup function when validation fails.

Test code to reproduce

  it('fails the session setup on the second run', () => {
    var validateFlag = false
    cy.session('test', () => {
      validateFlag = true
      cy.log('setup')
    },
    {
      validate() {
        cy.log('validate')
        if (validateFlag) {
          return true
        }
        else {
          return false
        }
      },
    })
  });

Cypress Version

8.2.0

Other

No response

[eLarocque]

Same issue here. Providing the validate function is useless until this is fixed. I know this is an experimental feature (and a great one at that!) but would love this issue prioritized 😃 Thanks!

[alexniculae]

Hello @Bkucera - is the change propose by Bahmutov, or another fix for this issue, planned to be introduce in an upcoming release? Thank you, Alex