Convert mock provider to async provider

providers/mock/mock_test.go

@@ -0,0 +1,17 @@
+package mock
+
+import (
+	"testing"
+
+	"github.com/virtual-kubelet/virtual-kubelet/vkubelet"
+	"github.com/virtual-kubelet/virtual-kubelet/providers"
+	"gotest.tools/assert"
+)
+
+// We can guarantee the right interfaces are implemented inside of by putting casts in place. We must do the verification
+// that a given type *does not* implement a given interface in this test.
+func TestMockLegacyInterface(t *testing.T) {
+	var mlp providers.Provider = &MockLegacyProvider{}
+	_, ok := mlp.(vkubelet.PodNotifier)
+	assert.Assert(t, !ok)
+}