diff --git a/internal/commands/kubernetes/list_test.go b/internal/commands/kubernetes/list_test.go
new file mode 100644
index 000000000..a61109716
--- /dev/null
+++ b/internal/commands/kubernetes/list_test.go
@@ -0,0 +1,115 @@
+package kubernetes
+
+import (
+	"testing"
+
+	"github.com/UpCloudLtd/upcloud-cli/v2/internal/commands"
+	"github.com/UpCloudLtd/upcloud-cli/v2/internal/config"
+	smock "github.com/UpCloudLtd/upcloud-cli/v2/internal/mock"
+	"github.com/UpCloudLtd/upcloud-cli/v2/internal/mockexecute"
+	"github.com/UpCloudLtd/upcloud-cli/v2/internal/testutils"
+
+	"github.com/UpCloudLtd/upcloud-go-api/v6/upcloud"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/mock"
+)
+
+func TestList_MarshaledOutput(t *testing.T) {
+	cluster1 := upcloud.KubernetesCluster{
+		ControlPlaneIPFilter: []string{"10.144.1.100", "10.144.2.0/24"},
+		Name:                 "upcloud-go-sdk-unit-test",
+		Network:              "03a98be3-7daa-443f-bb25-4bc6854b396c",
+		NetworkCIDR:          "172.16.1.0/24",
+		NodeGroups: []upcloud.KubernetesNodeGroup{
+			{
+				Count: 4,
+				Labels: []upcloud.Label{
+					{
+						Key:   "managedBy",
+						Value: "upcloud-go-sdk-unit-test",
+					},
+					{
+						Key:   "another",
+						Value: "label-thing",
+					},
+				},
+				Name:  "upcloud-go-sdk-unit-test",
+				Plan:  "2xCPU-4GB",
+				State: upcloud.KubernetesNodeGroupStateRunning,
+				KubeletArgs: []upcloud.KubernetesKubeletArg{
+					{
+						Key:   "somekubeletkey",
+						Value: "somekubeletvalue",
+					},
+				},
+				Taints: []upcloud.KubernetesTaint{
+					{
+						Effect: "NoExecute",
+						Key:    "sometaintkey",
+						Value:  "sometaintvalue",
+					},
+					{
+						Effect: "NoExecute",
+						Key:    "sometaintkey",
+						Value:  "sometaintvalue",
+					},
+					{
+						Effect: "NoExecute",
+						Key:    "sometaintkey",
+						Value:  "sometaintvalue",
+					},
+				},
+				Storage:              "storage-uuid",
+				SSHKeys:              []string{"somekey"},
+				UtilityNetworkAccess: true,
+			}, {
+				Count: 8,
+				Labels: []upcloud.Label{
+					{
+						Key:   "managedBy",
+						Value: "upcloud-go-sdk-unit-test-2",
+					},
+					{
+						Key:   "another2",
+						Value: "label-thing-2",
+					},
+				},
+				Name:  "upcloud-go-sdk-unit-test-2",
+				Plan:  "4xCPU-8GB",
+				State: upcloud.KubernetesNodeGroupStatePending,
+				KubeletArgs: []upcloud.KubernetesKubeletArg{
+					{
+						Key:   "somekubeletkey2",
+						Value: "somekubeletvalue2",
+					},
+				},
+				Taints: []upcloud.KubernetesTaint{
+					{
+						Effect: "NoSchedule",
+						Key:    "sometaintkey2",
+						Value:  "sometaintvalue2",
+					},
+				},
+				Storage:              "storage-uuid-2",
+				SSHKeys:              []string{"somekey2"},
+				UtilityNetworkAccess: false,
+			},
+		},
+		State: upcloud.KubernetesClusterStateRunning,
+		UUID:  "0ddab8f4-97c0-4222-91ba-85a4fff7499b",
+		Zone:  "de-fra1",
+	}
+
+	mService := smock.Service{}
+	mService.On("GetKubernetesClusters", mock.Anything).Return([]upcloud.KubernetesCluster{cluster1}, nil)
+
+	conf := config.New()
+	conf.Viper().Set(config.KeyOutput, config.ValueOutputJSON)
+
+	command := commands.BuildCommand(ListCommand(), nil, conf)
+
+	output, err := mockexecute.MockExecute(command, &mService, conf)
+
+	assert.Nil(t, err)
+	testutils.AssertOutputIsList(t, output)
+}