Question about threshold

[SaraCooperQA]

How do you change the threshold value so any difference will cause a fail?

[FRSgit]

Hey @SaraCooperQA,

As of version 3.2.11 it is possible to set maxDiffThreshold: 0 in the plugin configuration.

Does this answer your question?

[donwelsh]

Hey @FRSgit. I am running 3.3.10. This is my test:

it('visual test', () => {
  cy.visit('https://example.cypress.io/todo')
  cy.wait(2000)
  cy.matchImage({
    diffConfig: {
      maxDiffThreshold: 0,
    },
  })
})

If I have a tiny diff it says: Image diff factor (0%) is within boundaries of maximum threshold option 0.01 and the test passes. If I have a big diff I get: Image diff factor (0.017%) is bigger than maximum threshold option 0.01. and the test correctly fails. I tried changing the maxDiffThreshold to different values, but it never caught the tiny diff. So I am having the same issue as @SaraCooperQA I believe.