diff --git a/dao/src/test/java/org/thingsboard/server/dao/service/validator/DeviceDataValidatorTest.java b/dao/src/test/java/org/thingsboard/server/dao/service/validator/DeviceDataValidatorTest.java
new file mode 100644
index 0000000000..4e023ad6ac
--- /dev/null
+++ b/dao/src/test/java/org/thingsboard/server/dao/service/validator/DeviceDataValidatorTest.java
@@ -0,0 +1,90 @@
+/**
+ * Copyright © 2016-2023 The Thingsboard Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.thingsboard.server.dao.service.validator;
+
+import lombok.extern.slf4j.Slf4j;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.ValueSource;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.mock.mockito.MockBean;
+import org.thingsboard.server.common.data.Device;
+import org.thingsboard.server.common.data.id.TenantId;
+import org.thingsboard.server.dao.customer.CustomerDao;
+import org.thingsboard.server.dao.device.DeviceDao;
+import org.thingsboard.server.dao.exception.DataValidationException;
+import org.thingsboard.server.dao.tenant.TenantService;
+
+import java.util.UUID;
+
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+import static org.assertj.core.api.ThrowableAssert.catchThrowableOfType;
+import static org.mockito.BDDMockito.willReturn;
+
+@SpringBootTest(classes = DeviceDataValidator.class)
+@Slf4j
+class DeviceDataValidatorTest {
+
+    @MockBean
+    DeviceDao deviceDao;
+    @MockBean
+    TenantService tenantService;
+    @MockBean
+    CustomerDao customerDao;
+    @Autowired
+    DeviceDataValidator validator;
+    TenantId tenantId = TenantId.fromUUID(UUID.fromString("9ef79cdf-37a8-4119-b682-2e7ed4e018da"));
+
+    @BeforeEach
+    void setUp() {
+        willReturn(true).given(tenantService).tenantExists(tenantId);
+    }
+
+    @ParameterizedTest
+    @ValueSource(strings = {
+            "coffee", "1", "big box", "世界", "!", "--", "~!@#$%^&*()_+=-/|\\[]{};:'`\"?<>,.", "\uD83D\uDC0C", "\041",
+            "Gdy Pomorze nie pomoże, to pomoże może morze, a gdy morze nie pomoże, to pomoże może Gdańsk",
+    })
+    void testDeviceName_thenOK(final String name) {
+        Device device = new Device();
+        device.setTenantId(tenantId);
+        device.setName(name);
+        validator.validateDataImpl(tenantId, device);
+    }
+
+    @ParameterizedTest
+    @ValueSource(strings = {
+            "", " ", "  ", "\n", "\r\n", "\t", "\000", "\000\000", "\001", "\002", "\040", "\u0000", "\u0000\u0000",
+            "F0929906\000\000\000\000\000\000\000\000\000", "\000\000\000F0929906",
+            "\u0000F0929906", "F092\u00009906", "F0929906\u0000"
+    })
+
+    void testDeviceName_thenDataValidationException(final String name) {
+        Device device = new Device();
+        device.setTenantId(tenantId);
+        device.setName(name);
+
+        DataValidationException exception = catchThrowableOfType(() ->
+                validator.validateDataImpl(tenantId, device), DataValidationException.class);
+        log.warn("Exception message: {}", exception == null ? null : exception.getMessage());
+
+        assertThatThrownBy(() -> validator.validateDataImpl(tenantId, device))
+                .isInstanceOf(DataValidationException.class)
+                .hasMessageMatching(".*\\S.*");
+    }
+
+}