add unit tests

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

@@ -2,6 +2,7 @@ package com.example.hpostesting
 
 import android.content.SharedPreferences
 import android.view.View
+import com.example.hpostesting.data.constant.Constants
 import com.example.hpostesting.presentation.hemocube.HemoCubeFragment
 import com.example.hpostesting.presentation.hemocube.HemoCubeViewModel
 import com.example.hpostesting.presentation.hemocube.HemocubeActivity
@@ -11,6 +12,7 @@ import org.junit.Before
 import org.junit.Test
 import org.mockito.ArgumentMatchers.any
 import org.mockito.ArgumentMatchers.anyString
+import org.mockito.ArgumentMatchers.eq
 import org.mockito.Mock
 import org.mockito.Mockito.verify
 import org.mockito.Mockito.`when`
@@ -46,6 +48,29 @@ class HemocubeViewModelTest {
         assertEquals("HPP1-9000", deviceId)
     }
 
+    @Test
+    fun `updateDeviceId in shared pref`() {
+        // Arrange
+        `when`(mockSharedPreferences.getString(anyString(), anyString())).thenReturn("HPP1-0001")
 
-    // Add more test cases for different scenarios if needed
+        // Act
+        val deviceId = mockSharedPreferences.getString(anyString(), anyString())
+
+        // Assert
+        assertEquals("HPP1-0001", deviceId)
+    }
+
+    @Test
+    fun `allReadingsComplete check`() {
+        // Arrange
+        val repeatReadingCount = 1
+        val readingsPerSample = 1
+
+        // Act
+        val result = hemoCubeFragment.allReadingsComplete(repeatReadingCount, readingsPerSample)
+
+        // Assert
+        assertEquals(true, result)
+        assertEquals(hemoCubeFragment.allReadingsComplete(0, 1), false)
+    }
 }