需要一些有关测试我的应用程序的帮助。我想验证viewmodel是否有趣writeNewTask()。它必须将Task对象添加到数据库中,该对象位于名为tasks的父项和每个Task的个人id之下。
fun writeNewTask(name: String?, orphanage: String?) {
val id = database.push().key!!
val task = Task(id, name, orphanage)
database.child("tasks").child(id).setValue(task)
}
我正在使用PowerMock。因此,这就是我的测试的样子
@RunWith(PowerMockRunner::class)
@PowerMockRunnerDelegate(JUnit4::class)
@PrepareForTest(FirebaseDatabase::class, AddTaskViewModel::class, DatabaseReference::class)
@PowerMockIgnore("org.mockito.*", "org.robolectric.*", "android.*", "androidx.*")
class AddTaskViewModelTest {
@Mock
lateinit var mockedDatabase: FirebaseDatabase
@Mock
lateinit var databaseReference: DatabaseReference
@Mock
lateinit var viewModel: AddTaskViewModel
@Before
fun before() {
viewModel = PowerMockito.mock(AddTaskViewModel::class.java)
databaseReference = PowerMockito.mock(DatabaseReference::class.java)
PowerMockito.mockStatic(AddTaskViewModel::class.java)
PowerMockito.mockStatic(DatabaseReference::class.java)
PowerMockito.mockStatic(FirebaseDatabase::class.java)
`when`(FirebaseDatabase.getInstance()).thenReturn(mockedDatabase)
mockedDatabase = PowerMockito.mock(FirebaseDatabase::class.java)
`when`(mockedDatabase.reference).thenReturn(databaseReference)
}
@Test
fun writeNewTaskTest() {
val id = "1"
`when`(databaseReference.key).thenReturn(id)
val name = "name"
val orphanage = "orphanage"
val task = Task(id, name, orphanage)
viewModel.writeNewTask(name, orphanage)
verify(databaseReference)
.child("tasks")
.child(id)
.setValue(task)
}
}
我发现了这个错误。调试后,我发现child(“ tasks”)] >> null
databaseReference.child("tasks");
-> at com.example.application.viewModel.AddTaskViewModelTest.writeNewTaskTest(AddTaskViewModelTest.kt:59)
Actually, there were zero interactions with this mock.
Wanted but not invoked:
databaseReference.child("tasks");
-> at com.example.application.viewModel.AddTaskViewModelTest.writeNewTaskTest(AddTaskViewModelTest.kt:59)
Actually, there were zero interactions with this mock.
需要一些有关测试我的应用程序的帮助。我想验证viewmodel有趣的writeNewTask()。它必须将Task对象添加到数据库中,其父对象称为task和每个Task的个人ID。好玩...