stadium_border_test.dart

// Copyright 2017 The Chromium 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';

import '../rendering/mock_canvas.dart';
import 'common_matchers.dart';

void main() {
  test('StadiumBorder', () {
    const StadiumBorder c10 = const StadiumBorder(side: const BorderSide(width: 10.0));
    const StadiumBorder c15 = const StadiumBorder(side: const BorderSide(width: 15.0));
    const StadiumBorder c20 = const StadiumBorder(side: const BorderSide(width: 20.0));
    expect(c10.dimensions, const EdgeInsets.all(10.0));
    expect(c10.scale(2.0), c20);
    expect(c20.scale(0.5), c10);
    expect(ShapeBorder.lerp(c10, c20, 0.0), c10);
    expect(ShapeBorder.lerp(c10, c20, 0.5), c15);
    expect(ShapeBorder.lerp(c10, c20, 1.0), c20);

    const StadiumBorder c1 = const StadiumBorder(side: const BorderSide(width: 1.0));
    expect(c1.getOuterPath(new Rect.fromCircle(center: Offset.zero, radius: 1.0)), isUnitCircle);
    const StadiumBorder c2 = const StadiumBorder(side: const BorderSide(width: 1.0));
    expect(c2.getInnerPath(new Rect.fromCircle(center: Offset.zero, radius: 2.0)), isUnitCircle);
    final Rect rect = new Rect.fromLTRB(10.0, 20.0, 100.0, 200.0);
    expect(
            (Canvas canvas) => c10.paint(canvas, rect),
        paints
          ..rrect(
            rrect: new RRect.fromRectAndRadius(rect.deflate(5.0), new Radius.circular(rect.shortestSide / 2.0 - 5.0)),
            strokeWidth: 10.0,
          )
    );
  });

  test('StadiumBorder and CircleBorder', () {
    const StadiumBorder stadium = const StadiumBorder(side: BorderSide.none);
    const CircleBorder circle = const CircleBorder(side: BorderSide.none);
    final Rect rect = new Rect.fromLTWH(0.0, 0.0, 100.0, 20.0);
    final Matcher looksLikeS = isPathThat(
      includes: const <Offset>[ const Offset(30.0, 10.0), const Offset(50.0, 10.0), ],
      excludes: const <Offset>[ const Offset(1.0, 1.0), const Offset(99.0, 19.0), ],
    );
    final Matcher looksLikeC = isPathThat(
      includes: const <Offset>[ const Offset(50.0, 10.0), ],
      excludes: const <Offset>[ const Offset(1.0, 1.0), const Offset(30.0, 10.0), const Offset(99.0, 19.0), ],
    );
    expect(stadium.getOuterPath(rect), looksLikeS);
    expect(circle.getOuterPath(rect), looksLikeC);
    expect(ShapeBorder.lerp(stadium, circle, 0.1).getOuterPath(rect), looksLikeS);
    expect(ShapeBorder.lerp(stadium, circle, 0.9).getOuterPath(rect), looksLikeC);
    expect(ShapeBorder.lerp(ShapeBorder.lerp(stadium, circle, 0.9), stadium, 0.1).getOuterPath(rect), looksLikeC);
    expect(ShapeBorder.lerp(ShapeBorder.lerp(stadium, circle, 0.9), stadium, 0.9).getOuterPath(rect), looksLikeS);
    expect(ShapeBorder.lerp(ShapeBorder.lerp(stadium, circle, 0.1), circle, 0.1).getOuterPath(rect), looksLikeS);
    expect(ShapeBorder.lerp(ShapeBorder.lerp(stadium, circle, 0.1), circle, 0.9).getOuterPath(rect), looksLikeC);
    expect(ShapeBorder.lerp(ShapeBorder.lerp(stadium, circle, 0.1), ShapeBorder.lerp(stadium, circle, 0.9), 0.1).getOuterPath(rect), looksLikeS);
    expect(ShapeBorder.lerp(ShapeBorder.lerp(stadium, circle, 0.1), ShapeBorder.lerp(stadium, circle, 0.9), 0.9).getOuterPath(rect), looksLikeC);
    expect(ShapeBorder.lerp(stadium, ShapeBorder.lerp(stadium, circle, 0.9), 0.1).getOuterPath(rect), looksLikeS);
    expect(ShapeBorder.lerp(stadium, ShapeBorder.lerp(stadium, circle, 0.9), 0.9).getOuterPath(rect), looksLikeC);
    expect(ShapeBorder.lerp(circle, ShapeBorder.lerp(stadium, circle, 0.1), 0.1).getOuterPath(rect), looksLikeC);
    expect(ShapeBorder.lerp(circle, ShapeBorder.lerp(stadium, circle, 0.1), 0.9).getOuterPath(rect), looksLikeS);

    expect(ShapeBorder.lerp(stadium, circle, 0.1).toString(),
        'StadiumBorder(BorderSide(Color(0xff000000), 0.0, BorderStyle.none), 10.0% of the way to being a CircleBorder)');
    expect(ShapeBorder.lerp(stadium, circle, 0.2).toString(),
        'StadiumBorder(BorderSide(Color(0xff000000), 0.0, BorderStyle.none), 20.0% of the way to being a CircleBorder)');
    expect(ShapeBorder.lerp(ShapeBorder.lerp(stadium, circle, 0.1), ShapeBorder.lerp(stadium, circle, 0.9), 0.9).toString(),
        'StadiumBorder(BorderSide(Color(0xff000000), 0.0, BorderStyle.none), 82.0% of the way to being a CircleBorder)');

    expect(ShapeBorder.lerp(circle, stadium, 0.9).toString(),
        'StadiumBorder(BorderSide(Color(0xff000000), 0.0, BorderStyle.none), 10.0% of the way to being a CircleBorder)');
    expect(ShapeBorder.lerp(circle, stadium, 0.8).toString(),
        'StadiumBorder(BorderSide(Color(0xff000000), 0.0, BorderStyle.none), 20.0% of the way to being a CircleBorder)');
    expect(ShapeBorder.lerp(ShapeBorder.lerp(stadium, circle, 0.9), ShapeBorder.lerp(stadium, circle, 0.1), 0.1).toString(),
        'StadiumBorder(BorderSide(Color(0xff000000), 0.0, BorderStyle.none), 82.0% of the way to being a CircleBorder)');

    expect(ShapeBorder.lerp(stadium, circle, 0.1), ShapeBorder.lerp(stadium, circle, 0.1));
    expect(ShapeBorder.lerp(stadium, circle, 0.1).hashCode, ShapeBorder.lerp(stadium, circle, 0.1).hashCode);

    final ShapeBorder direct50 = ShapeBorder.lerp(stadium, circle, 0.5);
    final ShapeBorder indirect50 = ShapeBorder.lerp(ShapeBorder.lerp(circle, stadium, 0.1), ShapeBorder.lerp(circle, stadium, 0.9), 0.5);
    expect(direct50, indirect50);
    expect(direct50.hashCode, indirect50.hashCode);
    expect(direct50.toString(), indirect50.toString());
  });

  test('StadiumBorder and RoundedRectBorder', () {
    const StadiumBorder stadium = const StadiumBorder(side: BorderSide.none);
    const RoundedRectangleBorder rrect = const RoundedRectangleBorder(side: BorderSide.none);
    final Rect rect = new Rect.fromLTWH(0.0, 0.0, 100.0, 50.0);
    final Matcher looksLikeS = isPathThat(
      includes: const <Offset>[
        const Offset(25.0, 25.0),
        const Offset(50.0, 25.0),
        const Offset(7.33, 7.33),
      ],
      excludes: const <Offset>[
        const Offset(0.001, 0.001),
        const Offset(99.999, 0.001),
        const Offset(99.999, 49.999),
        const Offset(0.001, 49.999),
      ],
    );
    final Matcher looksLikeR = isPathThat(
      includes: const <Offset>[
        const Offset(25.0, 25.0),
        const Offset(50.0, 25.0),
        const Offset(7.33, 7.33),
        const Offset(4.0, 4.0),
        const Offset(96.0, 4.0),
        const Offset(96.0, 46.0),
        const Offset(4.0, 46.0),
      ],
    );
    expect(stadium.getOuterPath(rect), looksLikeS);
    expect(rrect.getOuterPath(rect), looksLikeR);
    expect(ShapeBorder.lerp(stadium, rrect, 0.1).getOuterPath(rect), looksLikeS);
    expect(ShapeBorder.lerp(stadium, rrect, 0.9).getOuterPath(rect), looksLikeR);
    expect(ShapeBorder.lerp(ShapeBorder.lerp(stadium, rrect, 0.9), stadium, 0.1).getOuterPath(rect), looksLikeR);
    expect(ShapeBorder.lerp(ShapeBorder.lerp(stadium, rrect, 0.9), stadium, 0.9).getOuterPath(rect), looksLikeS);
    expect(ShapeBorder.lerp(ShapeBorder.lerp(stadium, rrect, 0.1), rrect, 0.1).getOuterPath(rect), looksLikeS);
    expect(ShapeBorder.lerp(ShapeBorder.lerp(stadium, rrect, 0.1), rrect, 0.9).getOuterPath(rect), looksLikeS);
    expect(ShapeBorder.lerp(ShapeBorder.lerp(stadium, rrect, 0.1), ShapeBorder.lerp(stadium, rrect, 0.9), 0.1).getOuterPath(rect), looksLikeS);
    expect(ShapeBorder.lerp(ShapeBorder.lerp(stadium, rrect, 0.1), ShapeBorder.lerp(stadium, rrect, 0.9), 0.9).getOuterPath(rect), looksLikeR);
    expect(ShapeBorder.lerp(stadium, ShapeBorder.lerp(stadium, rrect, 0.9), 0.1).getOuterPath(rect), looksLikeS);
    expect(ShapeBorder.lerp(stadium, ShapeBorder.lerp(stadium, rrect, 0.9), 0.9).getOuterPath(rect), looksLikeR);
    expect(ShapeBorder.lerp(rrect, ShapeBorder.lerp(stadium, rrect, 0.1), 0.1).getOuterPath(rect), looksLikeS);
    expect(ShapeBorder.lerp(rrect, ShapeBorder.lerp(stadium, rrect, 0.1), 0.9).getOuterPath(rect), looksLikeS);

    expect(ShapeBorder.lerp(stadium, rrect, 0.1).toString(),
        'StadiumBorder(BorderSide(Color(0xff000000), 0.0, BorderStyle.none), '
        'BorderRadius.zero, 10.0% of the way to being a RoundedRectangleBorder)');
    expect(ShapeBorder.lerp(stadium, rrect, 0.2).toString(),
        'StadiumBorder(BorderSide(Color(0xff000000), 0.0, BorderStyle.none), '
        'BorderRadius.zero, 20.0% of the way to being a RoundedRectangleBorder)');
    expect(ShapeBorder.lerp(ShapeBorder.lerp(stadium, rrect, 0.1), ShapeBorder.lerp(stadium, rrect, 0.9), 0.9).toString(),
        'StadiumBorder(BorderSide(Color(0xff000000), 0.0, BorderStyle.none), '
        'BorderRadius.zero, 82.0% of the way to being a RoundedRectangleBorder)');

    expect(ShapeBorder.lerp(rrect, stadium, 0.9).toString(),
        'StadiumBorder(BorderSide(Color(0xff000000), 0.0, BorderStyle.none), '
        'BorderRadius.zero, 10.0% of the way to being a RoundedRectangleBorder)');
    expect(ShapeBorder.lerp(rrect, stadium, 0.8).toString(),
        'StadiumBorder(BorderSide(Color(0xff000000), 0.0, BorderStyle.none), '
        'BorderRadius.zero, 20.0% of the way to being a RoundedRectangleBorder)');
    expect(ShapeBorder.lerp(ShapeBorder.lerp(stadium, rrect, 0.9), ShapeBorder.lerp(stadium, rrect, 0.1), 0.1).toString(),
        'StadiumBorder(BorderSide(Color(0xff000000), 0.0, BorderStyle.none), '
        'BorderRadius.zero, 82.0% of the way to being a RoundedRectangleBorder)');

    expect(ShapeBorder.lerp(stadium, rrect, 0.1), ShapeBorder.lerp(stadium, rrect, 0.1));
    expect(ShapeBorder.lerp(stadium, rrect, 0.1).hashCode, ShapeBorder.lerp(stadium, rrect, 0.1).hashCode);

    final ShapeBorder direct50 = ShapeBorder.lerp(stadium, rrect, 0.5);
    final ShapeBorder indirect50 = ShapeBorder.lerp(ShapeBorder.lerp(rrect, stadium, 0.1), ShapeBorder.lerp(rrect, stadium, 0.9), 0.5);
    expect(direct50, indirect50);
    expect(direct50.hashCode, indirect50.hashCode);
    expect(direct50.toString(), indirect50.toString());
  });
}