feat

: unit tests for the viewmodel

app/src/test/java/org/mifos/mobile/viewModels/HelpViewModelTest.kt

@@ -0,0 +1,75 @@
+package org.mifos.mobile.viewModels
+
+import androidx.arch.core.executor.testing.InstantTaskExecutorRule
+import androidx.lifecycle.Observer
+import junit.framework.Assert.assertEquals
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.mifos.mobile.models.FAQ
+import org.mifos.mobile.utils.HelpUiState
+import org.mockito.Mock
+import org.mockito.Mockito.*
+import org.mockito.junit.MockitoJUnitRunner
+
+@RunWith(MockitoJUnitRunner::class)
+class HelpViewModelTest {
+
+    @get:Rule
+    val instantTaskExecutorRule = InstantTaskExecutorRule()
+
+    @Mock
+    private lateinit var mockFAQArrayList: ArrayList<FAQ?>
+
+    @Mock
+    private lateinit var helpUiStateObserver: Observer<HelpUiState>
+
+    private lateinit var viewModel: HelpViewModel
+
+    @Before
+    fun setUp() {
+        viewModel = HelpViewModel()
+        viewModel.helpUiState.observeForever(helpUiStateObserver)
+    }
+
+    @Test
+    fun testLoadFaq() {
+        val qs = arrayOf("Question1", "Question2")
+        val ans = arrayOf("Answer1", "Answer2")
+
+        viewModel.loadFaq(qs, ans)
+
+        verify(helpUiStateObserver).onChanged(
+            HelpUiState.ShowFaq(
+                arrayListOf(
+                    FAQ(
+                        "Question1",
+                        "Answer1",
+                        false
+                    ),
+                    FAQ(
+                        "Question2",
+                        "Answer2",
+                        false
+                    )
+                )
+            )
+        )
+        verifyNoMoreInteractions(helpUiStateObserver)
+    }
+
+    @Test
+    fun testFilterList() {
+        val query = "app"
+        val mockFAQ1 = mock(FAQ::class.java)
+        val mockFAQ2 = mock(FAQ::class.java)
+
+        `when`(mockFAQ1.question).thenReturn("How to use the app?")
+        `when`(mockFAQ2.question).thenReturn("Is there a user guide available?")
+
+        val filteredList = viewModel.filterList(arrayListOf(mockFAQ1,mockFAQ2), query)
+
+        assertEquals(mockFAQ1, filteredList[0])
+    }
+}