| /* |
| * 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.compose.material |
| |
| import androidx.compose.foundation.layout.Box |
| import androidx.compose.runtime.Composable |
| import androidx.compose.ui.Modifier |
| import androidx.compose.ui.graphics.Color |
| import androidx.compose.ui.graphics.painter.ColorPainter |
| import androidx.compose.ui.platform.testTag |
| import androidx.compose.ui.test.assertHeightIsEqualTo |
| import androidx.compose.ui.test.assertIsDisplayed |
| import androidx.compose.ui.test.assertLeftPositionInRootIsEqualTo |
| import androidx.compose.ui.test.assertTopPositionInRootIsEqualTo |
| import androidx.compose.ui.test.assertWidthIsEqualTo |
| import androidx.compose.ui.test.getUnclippedBoundsInRoot |
| import androidx.compose.ui.test.junit4.createComposeRule |
| import androidx.compose.ui.test.onNodeWithTag |
| import androidx.compose.ui.test.onNodeWithText |
| import androidx.compose.ui.text.TextStyle |
| import androidx.compose.ui.unit.Dp |
| import androidx.compose.ui.unit.dp |
| import androidx.compose.ui.unit.height |
| import androidx.compose.ui.unit.width |
| import androidx.test.ext.junit.runners.AndroidJUnit4 |
| import androidx.test.filters.MediumTest |
| import com.google.common.truth.Truth.assertThat |
| import org.junit.Rule |
| import org.junit.Test |
| import org.junit.runner.RunWith |
| |
| @MediumTest |
| @RunWith(AndroidJUnit4::class) |
| class AppBarTest { |
| |
| @get:Rule |
| val rule = createComposeRule() |
| |
| private val appBarHeight = 56.dp |
| |
| @Test |
| fun topAppBar_expandsToScreen() { |
| rule |
| .setMaterialContentForSizeAssertions { |
| TopAppBar(title = { Text("Title") }) |
| } |
| .assertHeightIsEqualTo(appBarHeight) |
| .assertWidthIsEqualTo(rule.rootWidth()) |
| } |
| |
| @Test |
| fun topAppBar_withTitle() { |
| val title = "Title" |
| rule.setMaterialContent { |
| TopAppBar(title = { Text(title) }) |
| } |
| rule.onNodeWithText(title).assertIsDisplayed() |
| } |
| |
| @Test |
| fun topAppBar_default_positioning() { |
| rule.setMaterialContent { |
| Box(Modifier.testTag("bar")) { |
| TopAppBar( |
| navigationIcon = { |
| FakeIcon(Modifier.testTag("navigationIcon")) |
| }, |
| title = { |
| Text("title", Modifier.testTag("title")) |
| }, |
| actions = { |
| FakeIcon(Modifier.testTag("action")) |
| } |
| ) |
| } |
| } |
| |
| val appBarBounds = rule.onNodeWithTag("bar").getUnclippedBoundsInRoot() |
| val titleBounds = rule.onNodeWithTag("title").getUnclippedBoundsInRoot() |
| val appBarBottomEdgeY = appBarBounds.top + appBarBounds.height |
| |
| rule.onNodeWithTag("navigationIcon") |
| // Navigation icon should be 4.dp from the start |
| .assertLeftPositionInRootIsEqualTo(AppBarStartAndEndPadding) |
| // Navigation icon should be 4.dp from the bottom |
| .assertTopPositionInRootIsEqualTo( |
| appBarBottomEdgeY - AppBarStartAndEndPadding - FakeIconSize |
| ) |
| |
| rule.onNodeWithTag("title") |
| // Title should be 72.dp from the start |
| // 4.dp padding for the whole app bar + 68.dp inset |
| .assertLeftPositionInRootIsEqualTo(4.dp + 68.dp) |
| // Title should be vertically centered |
| .assertTopPositionInRootIsEqualTo((appBarBounds.height - titleBounds.height) / 2) |
| |
| rule.onNodeWithTag("action") |
| // Action should be placed at the end |
| .assertLeftPositionInRootIsEqualTo(expectedActionPosition(appBarBounds.width)) |
| // Action should be 4.dp from the bottom |
| .assertTopPositionInRootIsEqualTo( |
| appBarBottomEdgeY - AppBarStartAndEndPadding - FakeIconSize |
| ) |
| } |
| |
| @Test |
| fun topAppBar_noNavigationIcon_positioning() { |
| rule.setMaterialContent { |
| Box(Modifier.testTag("bar")) { |
| TopAppBar( |
| title = { |
| Text("title", Modifier.testTag("title")) |
| }, |
| actions = { |
| FakeIcon(Modifier.testTag("action")) |
| } |
| ) |
| } |
| } |
| |
| val appBarBounds = rule.onNodeWithTag("bar").getUnclippedBoundsInRoot() |
| |
| rule.onNodeWithTag("title") |
| // Title should now be placed 16.dp from the start, as there is no navigation icon |
| // 4.dp padding for the whole app bar + 12.dp inset |
| .assertLeftPositionInRootIsEqualTo(4.dp + 12.dp) |
| |
| rule.onNodeWithTag("action") |
| // Action should still be placed at the end |
| .assertLeftPositionInRootIsEqualTo(expectedActionPosition(appBarBounds.width)) |
| } |
| |
| @Test |
| fun topAppBar_titleDefaultStyle() { |
| var textStyle: TextStyle? = null |
| var h6Style: TextStyle? = null |
| rule.setMaterialContent { |
| Box { |
| TopAppBar( |
| title = { |
| Text("App Bar Title") |
| textStyle = LocalTextStyle.current |
| h6Style = MaterialTheme.typography.h6 |
| } |
| ) |
| } |
| } |
| assertThat(textStyle!!.fontSize).isEqualTo(h6Style!!.fontSize) |
| assertThat(textStyle!!.fontFamily).isEqualTo(h6Style!!.fontFamily) |
| } |
| |
| @Test |
| fun bottomAppBar_expandsToScreen() { |
| rule |
| .setMaterialContentForSizeAssertions { |
| BottomAppBar {} |
| } |
| .assertHeightIsEqualTo(appBarHeight) |
| .assertWidthIsEqualTo(rule.rootWidth()) |
| } |
| |
| @Test |
| fun bottomAppBar_default_positioning() { |
| rule.setMaterialContent { |
| BottomAppBar(Modifier.testTag("bar")) { |
| FakeIcon(Modifier.testTag("icon")) |
| } |
| } |
| |
| val appBarBounds = rule.onNodeWithTag("bar").getUnclippedBoundsInRoot() |
| val appBarBottomEdgeY = appBarBounds.top + appBarBounds.height |
| |
| rule.onNodeWithTag("icon") |
| // Child icon should be 4.dp from the start |
| .assertLeftPositionInRootIsEqualTo(AppBarStartAndEndPadding) |
| // Child icon should be 4.dp from the bottom |
| .assertTopPositionInRootIsEqualTo( |
| appBarBottomEdgeY - AppBarStartAndEndPadding - FakeIconSize |
| ) |
| } |
| |
| /** |
| * [IconButton] that just draws a red box, to simulate a real icon for testing positions. |
| */ |
| private val FakeIcon = @Composable { modifier: Modifier -> |
| IconButton(onClick = {}, modifier = modifier) { |
| Icon(ColorPainter(Color.Red), null) |
| } |
| } |
| |
| private fun expectedActionPosition(appBarWidth: Dp): Dp = |
| appBarWidth - AppBarStartAndEndPadding - FakeIconSize |
| |
| private val AppBarStartAndEndPadding = 4.dp |
| |
| private val FakeIconSize = 48.dp |
| } |