| /* |
| * Copyright 2020 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.test.selectors |
| |
| import androidx.test.filters.MediumTest |
| import androidx.ui.test.assert |
| import androidx.ui.test.onChildren |
| import androidx.ui.test.createComposeRule |
| import androidx.ui.test.onNodeWithTag |
| import androidx.ui.test.hasTestTag |
| import androidx.ui.test.onLast |
| import androidx.ui.test.util.BoundaryNode |
| import androidx.ui.test.util.expectErrorMessageStartsWith |
| import org.junit.Rule |
| import org.junit.Test |
| import org.junit.runner.RunWith |
| import org.junit.runners.JUnit4 |
| |
| @MediumTest |
| @RunWith(JUnit4::class) |
| class LastNodeSelectorTest { |
| |
| @get:Rule |
| val composeTestRule = createComposeRule() |
| |
| @Test |
| fun twoNodes_getLast() { |
| composeTestRule.setContent { |
| BoundaryNode(testTag = "Parent") { |
| BoundaryNode(testTag = "Child1") |
| BoundaryNode(testTag = "Child2") |
| } |
| } |
| |
| onNodeWithTag("Parent") |
| .onChildren() |
| .onLast() |
| .assert(hasTestTag("Child2")) |
| } |
| |
| @Test |
| fun zeroNodes_getLast() { |
| composeTestRule.setContent { |
| BoundaryNode(testTag = "Parent") |
| } |
| |
| onNodeWithTag("Parent") |
| .onChildren() |
| .onLast() |
| .assertDoesNotExist() |
| } |
| |
| @Test |
| fun zeroNodes_getLast_fail() { |
| composeTestRule.setContent { |
| BoundaryNode(testTag = "Parent") |
| } |
| |
| expectErrorMessageStartsWith("" + |
| "Failed: assertExists.\n" + |
| "Reason: Expected exactly '1' node but could not find any node that satisfies: " + |
| "(((TestTag = 'Parent').children).last)") { |
| onNodeWithTag("Parent") |
| .onChildren() |
| .onLast() |
| .assertExists() |
| } |
| } |
| } |