add unit test

app/src/test/java/com/example/hpostesting/DeviceViewModelTest.kt

@@ -0,0 +1,49 @@
+package com.example.hpostesting
+
+import android.content.Context
+import androidx.arch.core.executor.testing.InstantTaskExecutorRule
+import com.example.hpostesting.data.dao.HemoCubeDao
+import com.example.hpostesting.data.repository.Repository
+import com.example.hpostesting.presentation.deviceinfo.DeviceViewModel
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.mockito.Mock
+import org.mockito.junit.MockitoJUnitRunner
+
+@RunWith(MockitoJUnitRunner::class)
+class DeviceViewModelTest {
+
+    @get:Rule
+    val rule = InstantTaskExecutorRule()
+
+    @Mock
+    private lateinit var hemoCubeDao: HemoCubeDao
+
+    @Mock
+    private lateinit var repository: Repository
+
+    @Mock
+    private lateinit var context: Context
+
+    private lateinit var viewModel: DeviceViewModel
+
+    @Before
+    fun setup() {
+        viewModel = DeviceViewModel(hemoCubeDao, repository)
+    }
+
+    @Test
+    fun `test initial state`() {
+        assert(!viewModel.isServiceConnected)
+        assert(!viewModel.progressBar.value!!)
+        assert(viewModel.messages.value == null)
+//        assert(viewModel.allUserData == hemoCubeDao.getAll())
+//        assert(viewModel.deviceData.value == null)
+//        assert(viewModel.networkStatusLiveData.value == false)
+        assert(viewModel.fireBaseUpload.value == null)
+    }
+
+    // Add more tests for other functions and interactions as needed
+}