add unit tests

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

@@ -0,0 +1,82 @@
+package com.example.hpostesting
+
+import android.content.Context
+import android.content.SharedPreferences
+import androidx.fragment.app.testing.FragmentScenario
+import androidx.fragment.app.testing.launchFragmentInContainer
+import androidx.lifecycle.MutableLiveData
+import androidx.test.core.app.ApplicationProvider
+import com.example.hpostesting.data.constant.Constants
+import com.example.hpostesting.data.constant.HemoCubeCommands
+import com.example.hpostesting.presentation.deviceinfo.DeviceActivity
+import com.example.hpostesting.presentation.UsbServiceListener
+import com.example.hpostesting.presentation.hemocube.HemoCubeViewModel
+import com.google.firebase.crashlytics.ktx.crashlytics
+import com.google.firebase.ktx.Firebase
+import `in`.sminnovations.hpostesting.databinding.FragmentDeviceBinding
+import org.junit.After
+import org.junit.Before
+import org.junit.Test
+import org.mockito.Mock
+import org.mockito.Mockito.*
+import org.mockito.MockitoAnnotations
+
+class DeviceFragmentTest {
+//
+//    @Mock
+//    private lateinit var sharedPreferences: SharedPreferences
+//
+//    @Mock
+//    private lateinit var hemoCubeViewModel: HemoCubeViewModel
+//
+//    private lateinit var scenario: FragmentScenario<DeviceFragment>
+//
+//    @Before
+//    fun setup() {
+//        MockitoAnnotations.openMocks(this)
+//        // Mock the ViewModel and SharedPreferences
+//        `when`(hemoCubeViewModel.progressBar).thenReturn(MutableLiveData())
+//        `when`(hemoCubeViewModel.messages).thenReturn(MutableLiveData())
+//
+//        `when`(sharedPreferences.getString(Constants.DEVICE_ID, "")).thenReturn("mockedDeviceId")
+//
+//        // Launch the fragment in a test container
+//        scenario = launchFragmentInContainer(themeResId = R.style.Theme_AppCompat) {
+//            DeviceFragment().apply {
+//                deviceViewModel = hemoCubeViewModel
+//            }
+//        }
+//        scenario.onFragment { fragment ->
+//            fragment.sharedPreferences = sharedPreferences
+//        }
+//    }
+//
+//    @After
+//    fun tearDown() {
+//        scenario.moveToState(Lifecycle.State.DESTROYED)
+//    }
+//
+//    @Test
+//    fun testGetDeviceId() {
+//        // Mock UsbService and its behavior
+//        val usbService = (scenario.activity as DeviceActivity).mService
+//        `when`(usbService.sendAndListenToHemoCube(
+//            eq(HemoCubeCommands.DEVICE_CONFIGURATION_COMMAND),
+//            any(UsbServiceListener::class.java)
+//        )).thenAnswer {
+//            val listener = it.arguments[1] as UsbServiceListener
+//            listener.onUsbRead("MockedDeviceId".toByteArray())
+//        }
+//
+//        // Trigger the method to be tested
+//        scenario.onFragment {
+//            it.getDeviceId()
+//        }
+//
+//        // Verify that the shared preferences were updated
+//        verify(sharedPreferences.edit()).putString(Constants.DEVICE_ID, "MockedDeviceId")
+//        verify(sharedPreferences.edit()).apply()
+//    }
+
+    // Similar tests can be written for other methods
+}