{arg: "key", wantKey: "key", wantValue: ""},
		{arg: "", wantKey: "", wantValue: ""},
	}
	for _, tt := range tests {
		t.Run(tt.arg, func(t *testing.T) {
			gotKey, gotValue := splitEqual(tt.arg)
			if gotKey != tt.wantKey {
				t.Errorf("splitEqual(%v) got = %v, want %v", tt.arg, gotKey, tt.wantKey)
			}
			if gotValue != tt.wantValue {
				t.Errorf("splitEqual(%v) got1 = %v, want %v", tt.arg, gotValue, tt.wantValue)

	if len(mgArgs.Components) != 0 {
		filteredManifests := name.ManifestMap{}
		for _, cArg := range mgArgs.Components {
			componentName := name.ComponentName(cArg)
			if cManifests, ok := manifests[componentName]; ok {
				filteredManifests[componentName] = cManifests
			} else {
				return fmt.Errorf("incorrect component name: %s. Valid options: %v", cArg, name.AllComponentNames)
			}
		}
		manifests = filteredManifests
	}

				return nil
			}

			readers, err := gatherFiles(cmd, args)
			if err != nil {
				return err
			}
			cancel := make(chan struct{})

			// We use the "namespace" arg that's provided as part of root istioctl as a flag for specifying what namespace to use
			// for file resources that don't have one specified.
			selectedNamespace = ctx.Namespace()
			if useKube {

		},
		{
			name: "valid resources from file",
			args: []string{"--filename", validFilenameYAML},
		},
		{
			name:      "extra args",
			args:      []string{"--filename", validFilenameYAML, "extra-arg"},
			wantError: true,
		},
		{
			name:      "invalid resources from file",
			args:      []string{"--filename", invalidFilenameYAML},
			wantError: true,
		},
		{
			name:      "invalid filename",