Autofill Interface and Implementation

Bug: 138548805
Test: Included new tests in this CL
Change-Id: I240e6d0b7a01719c097cea9438c0f5a88feddac3

diff --git a/ui/ui-platform/src/test/java/androidx/ui/autofill/AndroidAutofillTest.kt b/ui/ui-platform/src/test/java/androidx/ui/autofill/AndroidAutofillTest.kt
new file mode 100644
index 0000000..a135080
--- /dev/null
+++ b/ui/ui-platform/src/test/java/androidx/ui/autofill/AndroidAutofillTest.kt

@@ -0,0 +1,103 @@
+/*
+ * Copyright 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package androidx.ui.autofill
+
+import android.content.Context
+import android.graphics.Rect
+import android.view.View
+import android.view.autofill.AutofillManager
+import androidx.test.filters.SmallTest
+import com.nhaarman.mockitokotlin2.eq
+import com.nhaarman.mockitokotlin2.mock
+import com.nhaarman.mockitokotlin2.whenever
+import com.nhaarman.mockitokotlin2.times
+import com.nhaarman.mockitokotlin2.verify
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+import org.junit.rules.ExpectedException
+import org.junit.runner.RunWith
+import org.junit.runners.JUnit4
+
+@SmallTest
+@RunWith(JUnit4::class)
+class AndroidAutofillTest {
+
+    @get:Rule
+    val expectedException = ExpectedException.none()!!
+
+    private lateinit var androidAutofill: AndroidAutofill
+    private lateinit var autofillManager: AutofillManager
+    private lateinit var view: View
+    private val autofillTree = AutofillTree()
+
+    @Before
+    fun setup() {
+        autofillManager = mock()
+
+        val context: Context = mock()
+        whenever(context.getSystemService(eq(AutofillManager::class.java)))
+            .thenReturn(autofillManager)
+
+        view = mock()
+        whenever(view.context).thenReturn(context)
+
+        androidAutofill = AndroidAutofill(view, autofillTree)
+    }
+
+    @Test
+    fun importantForAutofill_is_yes() {
+        verify(view).setImportantForAutofill(View.IMPORTANT_FOR_AUTOFILL_YES)
+    }
+
+    @Test
+    fun requestAutofillForNode_calls_notifyViewEntered() {
+        // Arrange.
+        val autofillNode = AutofillNode( boundingBox = Rect(0, 0, 0, 0))
+
+        // Act.
+        androidAutofill.requestAutofillForNode(autofillNode)
+
+        // Assert.
+        verify(autofillManager, times(1))
+            .notifyViewEntered(view, autofillNode.id, autofillNode.boundingBox!!)
+    }
+
+    @Test
+    fun requestAutofillForNode_beforeComposableIsPositioned_throwsError() {
+        // Arrange - Before the composable is positioned, the boundingBox is null.
+        val autofillNode = AutofillNode(>
+
+        // Assert.
+        expectedException.expectMessage("requestAutofill called before onChildPositioned()")
+
+        // Act.
+        androidAutofill.requestAutofillForNode(autofillNode)
+    }
+
+    @Test
+    fun cancelAutofillForNode_calls_notifyViewExited() {
+        // Arrange.
+        val autofillNode = AutofillNode(>
+
+        // Act.
+        androidAutofill.cancelAutofillForNode(autofillNode)
+
+        // Assert.
+        verify(autofillManager, times(1)).notifyViewExited(view, autofillNode.id)
+    }
+}
\ No newline at end of file