How to access API client within provider test?

Terraform Providers
1

In a provider that uses the old SDK we had a test that triggered a side-effect outside of Terraform by doing this…

// testAccAddACLEntries doesn't technically check for anything despite returning a TestCheckFunc. Instead it is used for
// its side effect of adding an ACL Entry
func testAccAddACLEntries(acl *gofastly.ACL) resource.TestCheckFunc {
	return func(_ *terraform.State) error {
		conn := testAccProvider.Meta().(*APIClient).conn
		_, err := conn.CreateACLEntry(&gofastly.CreateACLEntryInput{
			ServiceID: acl.ServiceID,
			ACLID:     acl.ID,
			IP:        gofastly.String("192.168.0.1"),
		})
		if err != nil {
			return fmt.Errorf("error adding entry to ACL (%s) on service (%s): %w", acl.ID, acl.ServiceID, err)
		}

		return nil
	}
}

I’m wondering how to achieve the same using the new plugin framework?

I’m currently at this stage…

Check: resource.ComposeAggregateTestCheckFunc(
	func(_ *terraform.State) error {
		// this is the old way we got to the API client...
		// conn := testAccProvider.Meta().(*APIClient).conn

		if f, ok := provider.TestAccProtoV6ProviderFactories["fastly"]; ok {
			ps, err := f()
			if err != nil {
				return fmt.Errorf("failed to access test provider: %w", err)
			}
			fmt.Printf(">>> %#v\n", ps.) // << doesn't look like I can get at metadata to convert to an API client here
		}
		return nil
	},
),

Anyone have any ideas?

Thanks.