Add tests for exceptions

app/src/main/java/org/mozilla/fenix/exceptions/ExceptionsAdapter.kt

@@ -14,19 +14,13 @@ import org.mozilla.fenix.exceptions.viewholders.ExceptionsDeleteButtonViewHolder
 import org.mozilla.fenix.exceptions.viewholders.ExceptionsHeaderViewHolder
 import org.mozilla.fenix.exceptions.viewholders.ExceptionsListItemViewHolder
 
-sealed class AdapterItem {
-    object DeleteButton : AdapterItem()
-    object Header : AdapterItem()
-    data class Item(val item: TrackingProtectionException) : AdapterItem()
-}
-
 /**
  * Adapter for a list of sites that are exempted from Tracking Protection,
  * along with controls to remove the exception.
  */
 class ExceptionsAdapter(
     private val interactor: ExceptionsInteractor
-) : ListAdapter<AdapterItem, RecyclerView.ViewHolder>(DiffCallback) {
+) : ListAdapter<ExceptionsAdapter.AdapterItem, RecyclerView.ViewHolder>(DiffCallback) {
 
     /**
      * Change the list of items that are displayed.
@@ -67,6 +61,12 @@ class ExceptionsAdapter(
         }
     }
 
+    sealed class AdapterItem {
+        object DeleteButton : AdapterItem()
+        object Header : AdapterItem()
+        data class Item(val item: TrackingProtectionException) : AdapterItem()
+    }
+
     private object DiffCallback : DiffUtil.ItemCallback<AdapterItem>() {
         override fun areItemsTheSame(oldItem: AdapterItem, newItem: AdapterItem) =
             areContentsTheSame(oldItem, newItem)

app/src/main/java/org/mozilla/fenix/exceptions/ExceptionsFragment.kt

@@ -28,6 +28,7 @@ import org.mozilla.fenix.settings.SupportUtils
  * along with controls to remove the exception.
  */
 class ExceptionsFragment : Fragment() {
+
     private lateinit var exceptionsStore: ExceptionsFragmentStore
     private lateinit var exceptionsView: ExceptionsView
     private lateinit var exceptionsInteractor: ExceptionsInteractor
@@ -48,7 +49,7 @@ class ExceptionsFragment : Fragment() {
         exceptionsStore = StoreProvider.get(this) {
             ExceptionsFragmentStore(
                 ExceptionsFragmentState(
-                    items = listOf()
+                    items = emptyList()
                 )
             )
         }
@@ -61,7 +62,6 @@ class ExceptionsFragment : Fragment() {
 
     @ExperimentalCoroutinesApi
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-        super.onViewCreated(view, savedInstanceState)
         consumeFrom(exceptionsStore) {
             exceptionsView.update(it)
         }

app/src/main/java/org/mozilla/fenix/exceptions/ExceptionsView.kt

@@ -4,16 +4,16 @@
 
 package org.mozilla.fenix.exceptions
 
-import android.text.SpannableString
 import android.text.method.LinkMovementMethod
 import android.text.style.UnderlineSpan
 import android.view.LayoutInflater
 import android.view.ViewGroup
 import android.widget.FrameLayout
+import androidx.core.text.toSpannable
 import androidx.core.view.isVisible
 import androidx.recyclerview.widget.LinearLayoutManager
 import kotlinx.android.extensions.LayoutContainer
-import kotlinx.android.synthetic.main.component_exceptions.view.*
+import kotlinx.android.synthetic.main.component_exceptions.*
 import mozilla.components.concept.engine.content.blocking.TrackingProtectionException
 import org.mozilla.fenix.R
 
@@ -42,35 +42,36 @@ interface ExceptionsViewInteractor {
  * View that contains and configures the Exceptions List
  */
 class ExceptionsView(
-    override val containerView: ViewGroup,
-    val interactor: ExceptionsInteractor
+    container: ViewGroup,
+    interactor: ExceptionsInteractor
 ) : LayoutContainer {
 
-    val view: FrameLayout = LayoutInflater.from(containerView.context)
-        .inflate(R.layout.component_exceptions, containerView, true)
+    override val containerView: FrameLayout = LayoutInflater.from(container.context)
+        .inflate(R.layout.component_exceptions, container, true)
         .findViewById(R.id.exceptions_wrapper)
 
     private val exceptionsAdapter = ExceptionsAdapter(interactor)
 
     init {
-        view.exceptions_list.apply {
+        exceptions_list.apply {
             adapter = exceptionsAdapter
-            layoutManager = LinearLayoutManager(containerView.context)
+            layoutManager = LinearLayoutManager(container.context)
         }
-        val learnMoreText = view.exceptions_learn_more.text.toString()
-        val textWithLink = SpannableString(learnMoreText).apply {
-            setSpan(UnderlineSpan(), 0, learnMoreText.length, 0)
-        }
-        with(view.exceptions_learn_more) {
+
+        with(exceptions_learn_more) {
+            val learnMoreText = text
+            text = learnMoreText.toSpannable().apply {
+                setSpan(UnderlineSpan(), 0, learnMoreText.length, 0)
+            }
+
             movementMethod = LinkMovementMethod.getInstance()
-            text = textWithLink
             setOnClickListener { interactor.onLearnMore() }
         }
     }
 
     fun update(state: ExceptionsFragmentState) {
-        view.exceptions_empty_view.isVisible = state.items.isEmpty()
-        view.exceptions_list.isVisible = state.items.isNotEmpty()
+        exceptions_empty_view.isVisible = state.items.isEmpty()
+        exceptions_list.isVisible = state.items.isNotEmpty()
         exceptionsAdapter.updateData(state.items)
     }
 }

app/src/test/java/org/mozilla/fenix/exceptions/ExceptionsAdapterTest.kt

@@ -0,0 +1,42 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+package org.mozilla.fenix.exceptions
+
+import io.mockk.mockk
+import kotlinx.coroutines.ExperimentalCoroutinesApi
+import kotlinx.coroutines.test.runBlockingTest
+import org.junit.Assert.assertEquals
+import org.junit.Before
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.mozilla.fenix.exceptions.viewholders.ExceptionsDeleteButtonViewHolder
+import org.mozilla.fenix.exceptions.viewholders.ExceptionsHeaderViewHolder
+import org.mozilla.fenix.exceptions.viewholders.ExceptionsListItemViewHolder
+import org.mozilla.fenix.helpers.FenixRobolectricTestRunner
+
+@ExperimentalCoroutinesApi
+@RunWith(FenixRobolectricTestRunner::class)
+class ExceptionsAdapterTest {
+
+    private lateinit var interactor: ExceptionsInteractor
+    private lateinit var adapter: ExceptionsAdapter
+
+    @Before
+    fun setup() {
+        interactor = mockk()
+        adapter = ExceptionsAdapter(interactor)
+    }
+
+    @Test
+    fun `binds header and delete button with other adapter items`() = runBlockingTest {
+        adapter.updateData(listOf(mockk(), mockk()))
+
+        assertEquals(4, adapter.itemCount)
+        assertEquals(ExceptionsHeaderViewHolder.LAYOUT_ID, adapter.getItemViewType(0))
+        assertEquals(ExceptionsListItemViewHolder.LAYOUT_ID, adapter.getItemViewType(1))
+        assertEquals(ExceptionsListItemViewHolder.LAYOUT_ID, adapter.getItemViewType(2))
+        assertEquals(ExceptionsDeleteButtonViewHolder.LAYOUT_ID, adapter.getItemViewType(3))
+    }
+}

app/src/test/java/org/mozilla/fenix/exceptions/ExceptionsViewTest.kt

@@ -0,0 +1,82 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+package org.mozilla.fenix.exceptions
+
+import android.text.Spannable
+import android.text.method.LinkMovementMethod
+import android.view.ViewGroup
+import android.widget.FrameLayout
+import androidx.core.view.isVisible
+import io.mockk.Runs
+import io.mockk.every
+import io.mockk.just
+import io.mockk.mockk
+import io.mockk.mockkConstructor
+import io.mockk.unmockkConstructor
+import io.mockk.verify
+import kotlinx.android.synthetic.main.component_exceptions.*
+import mozilla.components.concept.engine.content.blocking.TrackingProtectionException
+import mozilla.components.support.test.robolectric.testContext
+import org.junit.After
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertFalse
+import org.junit.Assert.assertTrue
+import org.junit.Before
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.mozilla.fenix.helpers.FenixRobolectricTestRunner
+
+@RunWith(FenixRobolectricTestRunner::class)
+class ExceptionsViewTest {
+
+    private lateinit var container: ViewGroup
+    private lateinit var interactor: ExceptionsInteractor
+    private lateinit var exceptionsView: ExceptionsView
+
+    @Before
+    fun setup() {
+        mockkConstructor(ExceptionsAdapter::class)
+        container = FrameLayout(testContext)
+        interactor = mockk()
+
+        exceptionsView = ExceptionsView(container, interactor)
+        every { anyConstructed<ExceptionsAdapter>().updateData(any()) } just Runs
+    }
+
+    @After
+    fun teardown() {
+        unmockkConstructor(ExceptionsAdapter::class)
+    }
+
+    @Test
+    fun `binds exception text`() {
+        assertTrue(exceptionsView.exceptions_learn_more.movementMethod is LinkMovementMethod)
+        assertTrue(exceptionsView.exceptions_learn_more.text is Spannable)
+        assertEquals("Learn more", exceptionsView.exceptions_learn_more.text.toString())
+
+        every { interactor.onLearnMore() } just Runs
+        exceptionsView.exceptions_learn_more.performClick()
+        verify { interactor.onLearnMore() }
+    }
+
+    @Test
+    fun `binds empty list to adapter`() {
+        exceptionsView.update(ExceptionsFragmentState(emptyList()))
+
+        assertTrue(exceptionsView.exceptions_empty_view.isVisible)
+        assertFalse(exceptionsView.exceptions_list.isVisible)
+        verify { anyConstructed<ExceptionsAdapter>().updateData(emptyList()) }
+    }
+
+    @Test
+    fun `binds list with items to adapter`() {
+        val items = listOf<TrackingProtectionException>(mockk(), mockk())
+        exceptionsView.update(ExceptionsFragmentState(items))
+
+        assertFalse(exceptionsView.exceptions_empty_view.isVisible)
+        assertTrue(exceptionsView.exceptions_list.isVisible)
+        verify { anyConstructed<ExceptionsAdapter>().updateData(items) }
+    }
+}

app/src/test/java/org/mozilla/fenix/exceptions/viewholders/ExceptionsDeleteButtonViewHolderTest.kt

@@ -0,0 +1,43 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+package org.mozilla.fenix.exceptions.viewholders
+
+import android.view.LayoutInflater
+import android.view.View
+import androidx.appcompat.view.ContextThemeWrapper
+import io.mockk.mockk
+import io.mockk.verify
+import kotlinx.android.synthetic.main.delete_exceptions_button.view.*
+import mozilla.components.support.test.robolectric.testContext
+import org.junit.Before
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.mozilla.fenix.R
+import org.mozilla.fenix.exceptions.ExceptionsInteractor
+import org.mozilla.fenix.helpers.FenixRobolectricTestRunner
+
+@RunWith(FenixRobolectricTestRunner::class)
+class ExceptionsDeleteButtonViewHolderTest {
+
+    private lateinit var view: View
+    private lateinit var interactor: ExceptionsInteractor
+    private lateinit var viewHolder: ExceptionsDeleteButtonViewHolder
+
+    @Before
+    fun setup() {
+        val appCompatContext = ContextThemeWrapper(testContext, R.style.NormalTheme)
+        view = LayoutInflater.from(appCompatContext)
+            .inflate(ExceptionsDeleteButtonViewHolder.LAYOUT_ID, null)
+        interactor = mockk(relaxed = true)
+        viewHolder = ExceptionsDeleteButtonViewHolder(view, interactor)
+    }
+
+    @Test
+    fun `calls onDeleteAll on click`() {
+        view.removeAllExceptions.performClick()
+
+        verify { interactor.onDeleteAll() }
+    }
+}

app/src/test/java/org/mozilla/fenix/exceptions/viewholders/ExceptionsListItemViewHolderTest.kt

@@ -0,0 +1,56 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+package org.mozilla.fenix.exceptions.viewholders
+
+import android.view.LayoutInflater
+import android.view.View
+import io.mockk.mockk
+import io.mockk.verify
+import kotlinx.android.synthetic.main.exception_item.view.*
+import mozilla.components.concept.engine.content.blocking.TrackingProtectionException
+import mozilla.components.support.test.robolectric.testContext
+import org.junit.Assert.assertEquals
+import org.junit.Before
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.mozilla.fenix.exceptions.ExceptionsInteractor
+import org.mozilla.fenix.helpers.FenixRobolectricTestRunner
+
+@RunWith(FenixRobolectricTestRunner::class)
+class ExceptionsListItemViewHolderTest {
+
+    private lateinit var view: View
+    private lateinit var interactor: ExceptionsInteractor
+    private lateinit var viewHolder: ExceptionsListItemViewHolder
+
+    @Before
+    fun setup() {
+        view = LayoutInflater.from(testContext)
+            .inflate(ExceptionsListItemViewHolder.LAYOUT_ID, null)
+        interactor = mockk(relaxed = true)
+        viewHolder = ExceptionsListItemViewHolder(view, interactor)
+    }
+
+    @Test
+    fun `bind url and icon`() {
+        val exception = object : TrackingProtectionException {
+            override val url = "https://example.com/icon.svg"
+        }
+        viewHolder.bind(exception)
+
+        assertEquals(exception.url, view.webAddressView.text)
+    }
+
+    @Test
+    fun `calls onDeleteOne on click`() {
+        val exception = object : TrackingProtectionException {
+            override val url = "https://example.com/icon.svg"
+        }
+        viewHolder.bind(exception)
+        view.delete_exception.performClick()
+
+        verify { interactor.onDeleteOne(exception) }
+    }
+}