testing.shouldError() function

<!------------------------------------------------------------------------------ IMPORTANT: This page was generated from comments in the Flux source code. Any edits made directly to this page will be overwritten the next time the documentation is generated. To make updates to this documentation, update the function comments above the function definition in the Flux source code: https://github.com/influxdata/flux/blob/master/stdlib/testing/testing.flux#L242-L252 Contributing to Flux: https://github.com/influxdata/flux#contributing Fluxdoc syntax: https://github.com/influxdata/flux/blob/master/docs/fluxdoc.md ------------------------------------------------------------------------------->

testing.shouldError() calls a function that catches any error and checks that the error matches the expected value.

Function type signature

{{% caption %}} For more information, see Function type signatures. {{% /caption %}}

Parameters

fn

({{< req >}}) Function to call.

want

({{< req >}}) Regular expression to match the expected error.

Examples

Test die function errors