Rework cmds so they are inline with cobra examples

Signed-off-by: Itxaka <itxaka.garcia@spectrocloud.com>

tools-image/enki/cmd/command_test.go

@@ -0,0 +1,53 @@
+/*
+Copyright © 2021 SUSE LLC
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package cmd
+
+import (
+	"io/ioutil"
+	"os"
+
+	"github.com/spf13/cobra"
+)
+
+func executeCommandC(cmd *cobra.Command, args ...string) (c *cobra.Command, output string, err error) {
+	// Set args to command
+	cmd.SetArgs(args)
+	// store old stdout
+	oldStdout := os.Stdout
+	r, w, _ := os.Pipe()
+	// Change stdout to our pipe
+	os.Stdout = w
+	// run the command
+	c, err = cmd.ExecuteC()
+	if err != nil {
+		// Remember to restore stdout!
+		os.Stdout = oldStdout
+		return nil, "", err
+	}
+	err = w.Close()
+	if err != nil {
+		// Remember to restore stdout!
+		os.Stdout = oldStdout
+		return nil, "", err
+	}
+	// Read output from our pipe
+	out, _ := ioutil.ReadAll(r)
+	// restore stdout
+	os.Stdout = oldStdout
+
+	return c, string(out), nil
+}