"constellation recover" CLI command

Signed-off-by: Malte Poll <mp@edgeless.systems>

cli/cmd/recoveryclient_test.go

@@ -0,0 +1,31 @@
+package cmd
+
+import (
+	"context"
+
+	"github.com/edgelesssys/constellation/coordinator/atls"
+)
+
+type stubRecoveryClient struct {
+	conn                bool
+	connectErr          error
+	closeErr            error
+	pushStateDiskKeyErr error
+
+	pushStateDiskKeyKey []byte
+}
+
+func (c *stubRecoveryClient) Connect(_, _ string, _ []atls.Validator) error {
+	c.conn = true
+	return c.connectErr
+}
+
+func (c *stubRecoveryClient) Close() error {
+	c.conn = false
+	return c.closeErr
+}
+
+func (c *stubRecoveryClient) PushStateDiskKey(_ context.Context, stateDiskKey []byte) error {
+	c.pushStateDiskKeyKey = stateDiskKey
+	return c.pushStateDiskKeyErr
+}