test/e2e: add import of controller-runtime/pkg/client/config to test …

…--kubebuilder registration

go.mod

@@ -30,6 +30,9 @@ require (
 	github.com/pborman/uuid v1.2.0
 	github.com/pkg/errors v0.8.1
 	github.com/prometheus/client_golang v1.2.1
+	github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4
+	github.com/prometheus/common v0.7.0
+	github.com/prometheus/prometheus v2.3.2+incompatible
 	github.com/rogpeppe/go-internal v1.5.0
 	github.com/rubenv/sql-migrate v0.0.0-20191025130928-9355dd04f4b3 // indirect
 	github.com/sergi/go-diff v1.0.0

go.sum

@@ -670,6 +670,7 @@ github.com/prometheus/procfs v0.0.2/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsT
 github.com/prometheus/procfs v0.0.3/go.mod h1:4A/X28fw3Fc593LaREMrKMqOKvUAntwMDaekg4FpcdQ=
 github.com/prometheus/procfs v0.0.5 h1:3+auTFlqw+ZaQYJARz6ArODtkaIwtvBTx3N2NehQlL8=
 github.com/prometheus/procfs v0.0.5/go.mod h1:4A/X28fw3Fc593LaREMrKMqOKvUAntwMDaekg4FpcdQ=
+github.com/prometheus/prometheus v2.3.2+incompatible h1:EekL1S9WPoPtJL2NZvL+xo38iMpraOnyEHOiyZygMDY=
 github.com/prometheus/prometheus v2.3.2+incompatible/go.mod h1:oAIUtOny2rjMX0OWN5vPR5/q/twIROJvdqnQKDdil/s=
 github.com/prometheus/tsdb v0.7.1/go.mod h1:qhTCs0VvXwvX/y3TZrWD7rabWM+ijKTux40TwIPHuXU=
 github.com/prometheus/tsdb v0.8.0/go.mod h1:fSI0j+IUQrDd7+ZtR9WKIGtoYAYAJUKcKhYLG25tN4g=

test/e2e/_incluster-test-code/main_test.go

@@ -19,6 +19,10 @@ import (
 	"testing"
 
 	f "github.com/operator-framework/operator-sdk/pkg/test"
+
+	// This import tests double-registration of the --kubebuilder flag:
+	// https://github.com/kubernetes-sigs/controller-runtime/issues/878
+	_ "sigs.k8s.io/controller-runtime/pkg/client/config"
 )
 
 type testArgs struct {