Add test to validate non empty pod log dir

Signed-off-by: Maksym Pavlenko <[email protected]>

Author: mxpv

pkg/kubelet/apis/config/validation/validation_test.go

@@ -569,6 +569,13 @@ func TestValidateKubeletConfiguration(t *testing.T) {
 			return conf
 		},
 		errMsg: "invalid configuration: containerLogMonitorInterval must be a positive time duration greater than or equal to 3s",
+	}, {
+		name: "pod logs path must be not empty",
+		configure: func(config *kubeletconfig.KubeletConfiguration) *kubeletconfig.KubeletConfiguration {
+			config.PodLogsDir = ""
+			return config
+		},
+		errMsg: "invalid configuration: podLogsDir was not specified",
 	}, {
 		name: "pod logs path must be absolute",
 		configure: func(config *kubeletconfig.KubeletConfiguration) *kubeletconfig.KubeletConfiguration {