// Copyright 2014 The Flutter Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. import 'package:flutter/painting.dart'; import 'package:flutter_test/flutter_test.dart'; void main() { test('Border.lerp identical a,b', () { expect(Border.lerp(null, null, 0), null); const Border border = Border(); expect(identical(Border.lerp(border, border, 0.5), border), true); }); test('BoxBorder.lerp identical a,b', () { expect(BoxBorder.lerp(null, null, 0), null); const BoxBorder border = Border(); expect(identical(BoxBorder.lerp(border, border, 0.5), border), true); }); test('BorderDirectional.lep identical a,b', () { expect(BorderDirectional.lerp(null, null, 0), null); const BorderDirectional border = BorderDirectional(); expect(identical(ShapeBorder.lerp(border, border, 0.5), border), true); }); test('OutlinedBorder.lep identical a,b', () { expect(OutlinedBorder.lerp(null, null, 0), null); const OutlinedBorder border = RoundedRectangleBorder(); expect(identical(OutlinedBorder.lerp(border, border, 0.5), border), true); }); test('ShapeBorder.lep identical a,b', () { expect(ShapeBorder.lerp(null, null, 0), null); const ShapeBorder border = CircleBorder(); expect(identical(ShapeBorder.lerp(border, border, 0.5), border), true); }); test('Compound borders', () { final Border b1 = Border.all(color: const Color(0xFF00FF00)); final Border b2 = Border.all(color: const Color(0xFF0000FF)); expect( (b1 + b2).toString(), 'Border.all(BorderSide(color: Color(0xff00ff00))) + ' 'Border.all(BorderSide(color: Color(0xff0000ff)))', ); expect( (b1 + (b2 + b2)).toString(), 'Border.all(BorderSide(color: Color(0xff00ff00))) + ' 'Border.all(BorderSide(color: Color(0xff0000ff), width: 2.0))', ); expect( ((b1 + b2) + b2).toString(), 'Border.all(BorderSide(color: Color(0xff00ff00))) + ' 'Border.all(BorderSide(color: Color(0xff0000ff), width: 2.0))', ); expect((b1 + b2) + b2, b1 + (b2 + b2)); expect( (b1 + b2).scale(3.0).toString(), 'Border.all(BorderSide(color: Color(0xff00ff00), width: 3.0)) + ' 'Border.all(BorderSide(color: Color(0xff0000ff), width: 3.0))', ); expect( (b1 + b2).scale(0.0).toString(), 'Border.all(BorderSide(color: Color(0xff00ff00), width: 0.0, style: none)) + ' 'Border.all(BorderSide(color: Color(0xff0000ff), width: 0.0, style: none))', ); expect( ShapeBorder.lerp(b2 + b1, b1 + b2, 0.0).toString(), 'Border.all(BorderSide(color: Color(0xff0000ff))) + ' 'Border.all(BorderSide(color: Color(0xff00ff00)))', ); expect( ShapeBorder.lerp(b2 + b1, b1 + b2, 0.25).toString(), 'Border.all(BorderSide(color: Color(0xff003fbf))) + ' 'Border.all(BorderSide(color: Color(0xff00bf3f)))', ); expect( ShapeBorder.lerp(b2 + b1, b1 + b2, 0.5).toString(), 'Border.all(BorderSide(color: Color(0xff007f7f))) + ' 'Border.all(BorderSide(color: Color(0xff007f7f)))', ); expect( ShapeBorder.lerp(b2 + b1, b1 + b2, 1.0).toString(), 'Border.all(BorderSide(color: Color(0xff00ff00))) + ' 'Border.all(BorderSide(color: Color(0xff0000ff)))', ); expect((b1 + b2).dimensions, const EdgeInsets.all(2.0)); const Rect rect = Rect.fromLTRB(11.0, 15.0, 299.0, 175.0); expect((Canvas canvas) => (b1 + b2).paint(canvas, rect), paints ..rect(rect: rect.deflate(0.5), color: b2.top.color) ..rect(rect: rect.deflate(1.5), color: b1.top.color), ); expect((b1 + b2 + b1).dimensions, const EdgeInsets.all(3.0)); expect((Canvas canvas) => (b1 + b2 + b1).paint(canvas, rect), paints ..rect(rect: rect.deflate(0.5), color: b1.top.color) ..rect(rect: rect.deflate(1.5), color: b2.top.color) ..rect(rect: rect.deflate(2.5), color: b1.top.color), ); }); test('Compound borders', () { const BorderSide side1 = BorderSide(color: Color(0xFF00FF00)); const BorderSide side2 = BorderSide(color: Color(0xFF0000FF)); const BorderDirectional b1 = BorderDirectional(top: side1, start: side1, end: side1, bottom: side1); const BorderDirectional b2 = BorderDirectional(top: side2, start: side2, end: side2, bottom: side2); expect( (b1 + b2).toString(), 'BorderDirectional(top: BorderSide(color: Color(0xff00ff00)), start: BorderSide(color: Color(0xff00ff00)), end: BorderSide(color: Color(0xff00ff00)), bottom: BorderSide(color: Color(0xff00ff00))) + ' 'BorderDirectional(top: BorderSide(color: Color(0xff0000ff)), start: BorderSide(color: Color(0xff0000ff)), end: BorderSide(color: Color(0xff0000ff)), bottom: BorderSide(color: Color(0xff0000ff)))', ); expect( (b1 + (b2 + b2)).toString(), 'BorderDirectional(top: BorderSide(color: Color(0xff00ff00)), start: BorderSide(color: Color(0xff00ff00)), end: BorderSide(color: Color(0xff00ff00)), bottom: BorderSide(color: Color(0xff00ff00))) + ' 'BorderDirectional(top: BorderSide(color: Color(0xff0000ff), width: 2.0), start: BorderSide(color: Color(0xff0000ff), width: 2.0), end: BorderSide(color: Color(0xff0000ff), width: 2.0), bottom: BorderSide(color: Color(0xff0000ff), width: 2.0))', ); expect( ((b1 + b2) + b2).toString(), 'BorderDirectional(top: BorderSide(color: Color(0xff00ff00)), start: BorderSide(color: Color(0xff00ff00)), end: BorderSide(color: Color(0xff00ff00)), bottom: BorderSide(color: Color(0xff00ff00))) + ' 'BorderDirectional(top: BorderSide(color: Color(0xff0000ff), width: 2.0), start: BorderSide(color: Color(0xff0000ff), width: 2.0), end: BorderSide(color: Color(0xff0000ff), width: 2.0), bottom: BorderSide(color: Color(0xff0000ff), width: 2.0))', ); expect((b1 + b2) + b2, b1 + (b2 + b2)); expect( (b1 + b2).scale(3.0).toString(), 'BorderDirectional(top: BorderSide(color: Color(0xff00ff00), width: 3.0), start: BorderSide(color: Color(0xff00ff00), width: 3.0), end: BorderSide(color: Color(0xff00ff00), width: 3.0), bottom: BorderSide(color: Color(0xff00ff00), width: 3.0)) + ' 'BorderDirectional(top: BorderSide(color: Color(0xff0000ff), width: 3.0), start: BorderSide(color: Color(0xff0000ff), width: 3.0), end: BorderSide(color: Color(0xff0000ff), width: 3.0), bottom: BorderSide(color: Color(0xff0000ff), width: 3.0))', ); expect( (b1 + b2).scale(0.0).toString(), 'BorderDirectional(top: BorderSide(color: Color(0xff00ff00), width: 0.0, style: none), start: BorderSide(color: Color(0xff00ff00), width: 0.0, style: none), end: BorderSide(color: Color(0xff00ff00), width: 0.0, style: none), bottom: BorderSide(color: Color(0xff00ff00), width: 0.0, style: none)) + ' 'BorderDirectional(top: BorderSide(color: Color(0xff0000ff), width: 0.0, style: none), start: BorderSide(color: Color(0xff0000ff), width: 0.0, style: none), end: BorderSide(color: Color(0xff0000ff), width: 0.0, style: none), bottom: BorderSide(color: Color(0xff0000ff), width: 0.0, style: none))', ); expect( ShapeBorder.lerp(b2 + b1, b1 + b2, 0.0).toString(), 'BorderDirectional(top: BorderSide(color: Color(0xff0000ff)), start: BorderSide(color: Color(0xff0000ff)), end: BorderSide(color: Color(0xff0000ff)), bottom: BorderSide(color: Color(0xff0000ff))) + ' 'BorderDirectional(top: BorderSide(color: Color(0xff00ff00)), start: BorderSide(color: Color(0xff00ff00)), end: BorderSide(color: Color(0xff00ff00)), bottom: BorderSide(color: Color(0xff00ff00)))', ); expect( ShapeBorder.lerp(b2 + b1, b1 + b2, 0.25).toString(), 'BorderDirectional(top: BorderSide(color: Color(0xff003fbf)), start: BorderSide(color: Color(0xff003fbf)), end: BorderSide(color: Color(0xff003fbf)), bottom: BorderSide(color: Color(0xff003fbf))) + ' 'BorderDirectional(top: BorderSide(color: Color(0xff00bf3f)), start: BorderSide(color: Color(0xff00bf3f)), end: BorderSide(color: Color(0xff00bf3f)), bottom: BorderSide(color: Color(0xff00bf3f)))', ); expect( ShapeBorder.lerp(b2 + b1, b1 + b2, 0.5).toString(), 'BorderDirectional(top: BorderSide(color: Color(0xff007f7f)), start: BorderSide(color: Color(0xff007f7f)), end: BorderSide(color: Color(0xff007f7f)), bottom: BorderSide(color: Color(0xff007f7f))) + ' 'BorderDirectional(top: BorderSide(color: Color(0xff007f7f)), start: BorderSide(color: Color(0xff007f7f)), end: BorderSide(color: Color(0xff007f7f)), bottom: BorderSide(color: Color(0xff007f7f)))', ); expect( ShapeBorder.lerp(b2 + b1, b1 + b2, 1.0).toString(), 'BorderDirectional(top: BorderSide(color: Color(0xff00ff00)), start: BorderSide(color: Color(0xff00ff00)), end: BorderSide(color: Color(0xff00ff00)), bottom: BorderSide(color: Color(0xff00ff00))) + ' 'BorderDirectional(top: BorderSide(color: Color(0xff0000ff)), start: BorderSide(color: Color(0xff0000ff)), end: BorderSide(color: Color(0xff0000ff)), bottom: BorderSide(color: Color(0xff0000ff)))', ); expect((b1 + b2).dimensions, const EdgeInsetsDirectional.fromSTEB(2.0, 2.0, 2.0, 2.0)); const Rect rect = Rect.fromLTRB(11.0, 15.0, 299.0, 175.0); expect((Canvas canvas) => (b1 + b2).paint(canvas, rect, textDirection: TextDirection.rtl), paints ..rect(rect: rect.deflate(0.5), color: b2.top.color) ..rect(rect: rect.deflate(1.5), color: b1.top.color), ); expect((b1 + b2 + b1).dimensions, const EdgeInsetsDirectional.fromSTEB(3.0, 3.0, 3.0, 3.0)); expect((Canvas canvas) => (b1 + b2 + b1).paint(canvas, rect, textDirection: TextDirection.rtl), paints ..rect(rect: rect.deflate(0.5), color: b1.top.color) ..rect(rect: rect.deflate(1.5), color: b2.top.color) ..rect(rect: rect.deflate(2.5), color: b1.top.color), ); }); }