This package provides utilities for testing the Backstage core packages.
This package should not be used directly, use @backstage/test-utils instead. All exports from this
package are re-exported by @backstage/test-utils.
The reason this package exists is to allow the Backstage core packages to use the testing utils exposed in this package. Since @backstage/test-utils needs to depend on @backstage/core, core is not able to use those test-utils. We put any test-utils that don't need to depend on other Backstage packages in this package, in order for them to be usable by any other @backstage packages.