commands: Add CLI tests

See #4598

commands/benchmark.go

@@ -45,8 +45,6 @@ creating a benchmark.`,
 	cmd.Flags().StringVar(&c.memProfileFile, "memprofile", "", "path/filename for the memory profile file")
 	cmd.Flags().IntVarP(&c.benchmarkTimes, "count", "n", 13, "number of times to build the site")
 
-	cmd.Flags().Bool("renderToMemory", false, "render to memory (only useful for benchmark testing)")
-
 	cmd.RunE = c.benchmark
 
 	return c
@@ -56,6 +54,7 @@ func (c *benchmarkCmd) benchmark(cmd *cobra.Command, args []string) error {
 	cfgInit := func(c *commandeer) error {
 		return nil
 	}
+
 	comm, err := initializeConfig(false, &c.hugoBuilderCommon, c, cfgInit)
 	if err != nil {
 		return err