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Update validation error scenarios #4842

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merged 8 commits into from Nov 29, 2022
Merged

Update validation error scenarios #4842

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e4d4449
Update validation error scenarios
emilyrohrbough Nov 7, 2022
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Delete stubs-with-aliases-and-error-in-command-log.png
emilyrohrbough Nov 7, 2022
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Delete stub-in-command-log.png
emilyrohrbough Nov 7, 2022
07c3e20
Delete inspect-the-stubbed-object-and-any-calls-or-arguments-made.png
emilyrohrbough Nov 7, 2022
c5d6a2c
Update content/api/commands/session.md
emilyrohrbough Nov 15, 2022
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Merge branch 'master' into fix-validation-err-handling-scenarios
emilyrohrbough Nov 28, 2022
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Merge branch 'master' into fix-validation-err-handling-scenarios
emilyrohrbough Nov 29, 2022
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fix markdown
emilyrohrbough Nov 29, 2022
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29 changes: 15 additions & 14 deletions content/api/commands/session.md
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Expand Up @@ -140,10 +140,10 @@ before `setup` runs, regardless of the testIsolation configuration.

**<Icon name="angle-right"></Icon> options** **_(Object)_**

| Option | Default | Description |
| ------------------ | ----------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `validate` | `undefined` | Validates the newly-created or restored session.<br><br>Function to run immediately after the session is created and `setup` function runs or after a session is restored and the page is cleared. If this returns `false`, throws an exception, contains any failing Cypress command, or returns a Promise which rejects or resolves to `false`, the session is considered invalid.<br><br>- If validation fails immediately after `setup`, the test will fail.<br>- If validation fails after restoring a session, `setup` will re-run. |
| `cacheAcrossSpecs` | `false` | When enabled, the newly created session is considered "global" and can be restored in any spec during the test execution in the same Cypress run on the same machine. Use this option for a session that will be used multiple times, across many specs. |
| Option | Default | Description g |
| ------------------ | ----------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `validate` | `undefined` | Validates the newly-created or restored session.<br><br>Function to run immediately after the session is created and `setup` function runs or after a session is restored and the page is cleared. If it throws an exception, contains any failing Cypress command, returns a Promise which rejects or resolves to `false`, or the last Cypress command yielded `false`, the session is considered invalid.<br><br>- If validation fails immediately after `setup`, the test will fail.<br>- If validation fails after restoring a session, `setup` will re-run. |
| `cacheAcrossSpecs` | `false` | When enabled, the newly created session is considered "global" and can be restored in any spec during the test execution in the same Cypress run on the same machine. Use this option for a session that will be used multiple times, across many specs. |

### Yields [<Icon name="question-circle"/>](/guides/core-concepts/introduction-to-cypress#Subject-Management)

Expand Down Expand Up @@ -370,9 +370,17 @@ it('should transfer money between users', () => {

### Validating the session

If the `validate` function return `false`, throws an exception, returns a
Promise that resolves to `false` or rejects, or contains any failing Cypress
command, the session will be considered invalid, and `setup` will be re-run.
The `validate` function is used to ensure the session has been correctly
established. This is especially helpful when a cached session is being restored,
because if the session is not valid, `cy.session()` will recreate the session by
re-running `setup`.

The following scenarios will mark the session as invalid:

- the `validate` function throws an exception
- the `validate` function returns a Promise that resolves to `false` or rejects
- the `validate` function contains failing Cypress command
- the last Cypress command in the `validate` function yielded `false`

The page is not cleared after the `validate` function is executed. If you use
`cy.visit()` in your validation, your test will continue on the visited page
Expand All @@ -396,13 +404,6 @@ function validate() {
cy.visit('/account', { failOnStatusCode: false })
cy.url().should('match', /^/account/)
}

// Or just return false if the session is invalid
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Do we not want an example for "the validate function returns a Promise that resolves to false or rejects" anymore?

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I'm going to do more comprehensive evaluation for the docs for the v12 release.

function validate() {
if (!MyApp.isSessionValid()) {
return false
}
}
```

### Modifying session data before caching
Expand Down