Validate that PV capacity and PVC capacity requests are greater than zero

pkg/apis/core/validation/validation_test.go

@@ -260,6 +260,21 @@ func TestValidatePersistentVolumes(t *testing.T) {
 				},
 			}),
 		},
+		"bad-volume-zero-capacity": {
+			isExpectedFailure: true,
+			volume: testVolume("foo", "", core.PersistentVolumeSpec{
+				Capacity: core.ResourceList{
+					core.ResourceName(core.ResourceStorage): resource.MustParse("0"),
+				},
+				AccessModes: []core.PersistentVolumeAccessMode{core.ReadWriteOnce},
+				PersistentVolumeSource: core.PersistentVolumeSource{
+					HostPath: &core.HostPathVolumeSource{
+						Path: "/foo",
+						Type: newHostPathType(string(core.HostPathDirectory)),
+					},
+				},
+			}),
+		},
 		"missing-accessmodes": {
 			isExpectedFailure: true,
 			volume: testVolume("goodname", "missing-accessmodes", core.PersistentVolumeSpec{
@@ -732,6 +747,29 @@ func TestValidatePersistentVolumeClaim(t *testing.T) {
 				StorageClassName: &validClassName,
 			}),
 		},
+		"invalid-claim-zero-capacity": {
+			isExpectedFailure: true,
+			claim: testVolumeClaim("foo", "ns", core.PersistentVolumeClaimSpec{
+				Selector: &metav1.LabelSelector{
+					MatchExpressions: []metav1.LabelSelectorRequirement{
+						{
+							Key:      "key2",
+							Operator: "Exists",
+						},
+					},
+				},
+				AccessModes: []core.PersistentVolumeAccessMode{
+					core.ReadWriteOnce,
+					core.ReadOnlyMany,
+				},
+				Resources: core.ResourceRequirements{
+					Requests: core.ResourceList{
+						core.ResourceName(core.ResourceStorage): resource.MustParse("0G"),
+					},
+				},
+				StorageClassName: &validClassName,
+			}),
+		},
 		"invalid-label-selector": {
 			isExpectedFailure: true,
 			claim: testVolumeClaim("foo", "ns", core.PersistentVolumeClaimSpec{