.its command with compound properties failing TypeScript check

[bahmutov]

Cypress v3, v4

Our typescript definition for cy.its command "understands" the properties of the subject, thus it can do

cy.wrap({ foo: 1 }).its('foo') // yup, subject has property "foo"

but it does not understand nested (compound) properties that Lodash _.get can do and we use under the hood

cy.wrap({
  foo: {
    bar: 1
  }
}).its('foo.bar') // oops, TypeScript freaks out, "foo.bar" is invalid

Maybe someone can look at Lodash and its TypeScript definition for _.get to see if they have solved this problem and bring the solution?

[bahmutov]

Work-around

Add // @ts-ignore above the its('foo.bar') command to ignore just this line

[arshmakker]

can i work on this one?

[jennifer-shehane]

@arshmakker yes we would love an open PR. Check out our contributing doc and ask us if you get stuck.

[arshmakker]

Hi @jennifer-shehane

I am trying to write the test case:

cy.wrap({
   foo: {
    bar: 1
  }
}).its('foo.bar')

in the tests in 'CypressItsTests' namespace, I had two questions:

1. is 'CypressItsTests' the right place for this?
2. How to run exclusively the tests for 'CypressItsTests'

[jennifer-shehane]

1. This seems correct.
2. There is a Contributing Guide that covers how to contribute and get Cypress running locally in generally here: https://github.com/cypress-io/cypress/blob/develop/.github/CONTRIBUTING.md

Instructions for running the cli tests can be found here: https://github.com/cypress-io/cypress/blob/develop/cli/README.md

Please feel free to open a WIP PR where we can address questions about the specific code you're writing.

[cypress-bot]

The code for this is done in cypress-io/cypress#6667, but has yet to be released.
We'll update this issue and reference the changelog when it's released.

[cypress-bot]

Released in 4.2.0.

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