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Split out AppBar/SliverAppBar material tests (#142560)
While looking into resolving https://github.com/flutter/flutter/issues/117903, I found the massive test file `app_bar_test.dart` and found it unwieldy to work with. So before proposing a solution to #117903, which would touch many of these tests, I figured a clean up would be best first. This splits up `app_bar_test.dart` with a new file `app_bar_sliver_test.dart`, and adds `app_bar_utils.dart` for shared test methods. It basically moves all SliverAppBar tests into their own file, leaving just AppBar tests in the original file.
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packages/flutter/test/material/app_bar_sliver_test.dart
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packages/flutter/test/material/app_bar_sliver_test.dart
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packages/flutter/test/material/app_bar_utils.dart
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packages/flutter/test/material/app_bar_utils.dart
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// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'package:flutter/material.dart';
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import 'package:flutter_test/flutter_test.dart';
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Finder findAppBarMaterial() {
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return find.descendant(
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of: find.byType(AppBar),
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matching: find.byType(Material),
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).first;
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}
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Color? getAppBarBackgroundColor(WidgetTester tester) {
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return tester.widget<Material>(findAppBarMaterial()).color;
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}
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double appBarHeight(WidgetTester tester) {
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return tester.getSize(find.byType(AppBar, skipOffstage: false)).height;
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}
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double appBarTop(WidgetTester tester) {
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return tester.getTopLeft(find.byType(AppBar, skipOffstage: false)).dy;
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}
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double appBarBottom(WidgetTester tester) {
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return tester.getBottomLeft(find.byType(AppBar, skipOffstage: false)).dy;
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}
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double tabBarHeight(WidgetTester tester) {
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return tester.getSize(find.byType(TabBar, skipOffstage: false)).height;
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}
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ScrollController primaryScrollController(WidgetTester tester) {
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return PrimaryScrollController.of(
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tester.element(find.byType(CustomScrollView))
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);
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}
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void verifyTextNotClipped(Finder textFinder, WidgetTester tester) {
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final Rect clipRect = tester.getRect(
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find.ancestor(of: textFinder, matching: find.byType(ClipRect)).first,
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);
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final Rect textRect = tester.getRect(textFinder);
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expect(textRect.top, inInclusiveRange(clipRect.top, clipRect.bottom));
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expect(textRect.bottom, inInclusiveRange(clipRect.top, clipRect.bottom));
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expect(textRect.left, inInclusiveRange(clipRect.left, clipRect.right));
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expect(textRect.right, inInclusiveRange(clipRect.left, clipRect.right));
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}
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