func NewContext(t *testing.T) context.Context {
	return context.WithValue(context.Background(), contextTestKey("testing.T"), t)
}
NewContext returns a context appropriate for calling a gRPC service that
is not hosted on a cluster or in Minimatch, (ie: tests not in test/e2e/).
For those tests use OM.Context() method.
package testing
import (
	"context"
	"testing"
)
type contextTestKey string