border_radius_test.dart 24 KB
Newer Older
Ian Hickson's avatar
Ian Hickson committed
1
// Copyright 2014 The Flutter Authors. All rights reserved.
2 3 4 5 6 7 8 9
// 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('BorderRadius control test', () {
Dan Field's avatar
Dan Field committed
10
    const Rect rect = Rect.fromLTRB(19.0, 23.0, 29.0, 31.0);
11 12
    BorderRadius borderRadius;

13
    borderRadius = const BorderRadius.all(Radius.elliptical(5.0, 7.0));
14 15 16 17 18
    expect(borderRadius, hasOneLineDescription);
    expect(borderRadius.topLeft, const Radius.elliptical(5.0, 7.0));
    expect(borderRadius.topRight, const Radius.elliptical(5.0, 7.0));
    expect(borderRadius.bottomLeft, const Radius.elliptical(5.0, 7.0));
    expect(borderRadius.bottomRight, const Radius.elliptical(5.0, 7.0));
19
    expect(borderRadius.toRRect(rect), RRect.fromRectXY(rect, 5.0, 7.0));
20

21
    borderRadius = BorderRadius.circular(3.0);
22 23 24 25 26
    expect(borderRadius, hasOneLineDescription);
    expect(borderRadius.topLeft, const Radius.elliptical(3.0, 3.0));
    expect(borderRadius.topRight, const Radius.elliptical(3.0, 3.0));
    expect(borderRadius.bottomLeft, const Radius.elliptical(3.0, 3.0));
    expect(borderRadius.bottomRight, const Radius.elliptical(3.0, 3.0));
27
    expect(borderRadius.toRRect(rect), RRect.fromRectXY(rect, 3.0, 3.0));
28

29 30
    const Radius radius1 = Radius.elliptical(89.0, 87.0);
    const Radius radius2 = Radius.elliptical(103.0, 107.0);
31 32 33 34 35 36 37

    borderRadius = const BorderRadius.vertical(top: radius1, bottom: radius2);
    expect(borderRadius, hasOneLineDescription);
    expect(borderRadius.topLeft, radius1);
    expect(borderRadius.topRight, radius1);
    expect(borderRadius.bottomLeft, radius2);
    expect(borderRadius.bottomRight, radius2);
38
    expect(borderRadius.toRRect(rect), RRect.fromRectAndCorners(
39 40 41 42 43 44 45 46 47 48 49 50 51
      rect,
      topLeft: radius1,
      topRight: radius1,
      bottomLeft: radius2,
      bottomRight: radius2,
    ));

    borderRadius = const BorderRadius.horizontal(left: radius1, right: radius2);
    expect(borderRadius, hasOneLineDescription);
    expect(borderRadius.topLeft, radius1);
    expect(borderRadius.topRight, radius2);
    expect(borderRadius.bottomLeft, radius1);
    expect(borderRadius.bottomRight, radius2);
52
    expect(borderRadius.toRRect(rect), RRect.fromRectAndCorners(
53 54 55 56 57 58 59
      rect,
      topLeft: radius1,
      topRight: radius2,
      bottomLeft: radius1,
      bottomRight: radius2,
    ));

60
    borderRadius = BorderRadius.zero;
61 62 63 64 65
    expect(borderRadius, hasOneLineDescription);
    expect(borderRadius.topLeft, Radius.zero);
    expect(borderRadius.topRight, Radius.zero);
    expect(borderRadius.bottomLeft, Radius.zero);
    expect(borderRadius.bottomRight, Radius.zero);
66
    expect(borderRadius.toRRect(rect), RRect.fromRectAndCorners(rect));
67 68 69 70 71 72 73

    borderRadius = const BorderRadius.only(topRight: radius1, bottomRight: radius2);
    expect(borderRadius, hasOneLineDescription);
    expect(borderRadius.topLeft, Radius.zero);
    expect(borderRadius.topRight, radius1);
    expect(borderRadius.bottomLeft, Radius.zero);
    expect(borderRadius.bottomRight, radius2);
74
    expect(borderRadius.toRRect(rect), RRect.fromRectAndCorners(
75 76 77 78 79 80
      rect,
      topRight: radius1,
      bottomRight: radius2,
    ));

    expect(
81 82
      const BorderRadius.only(topLeft: Radius.elliptical(1.0, 2.0)).subtract(const BorderRadius.only(topLeft: Radius.elliptical(3.0, 5.0))),
      const BorderRadius.only(topLeft: Radius.elliptical(-2.0, -3.0)),
83 84
    );
    expect(
85 86
      const BorderRadius.only(topRight: Radius.elliptical(1.0, 2.0)).add(const BorderRadius.only(topLeft: Radius.elliptical(3.0, 5.0))),
      const BorderRadius.only(topLeft: Radius.elliptical(3.0, 5.0), topRight: Radius.elliptical(1.0, 2.0)),
87 88 89
    );

    expect(
90 91
      const BorderRadius.only(topLeft: Radius.elliptical(1.0, 2.0)) - const BorderRadius.only(topLeft: Radius.elliptical(3.0, 5.0)),
      const BorderRadius.only(topLeft: Radius.elliptical(-2.0, -3.0)),
92 93
    );
    expect(
94 95
      const BorderRadius.only(topRight: Radius.elliptical(1.0, 2.0)) + const BorderRadius.only(topLeft: Radius.elliptical(3.0, 5.0)),
      const BorderRadius.only(topLeft: Radius.elliptical(3.0, 5.0), topRight: Radius.elliptical(1.0, 2.0)),
96 97 98
    );

    expect(
99 100
      -const BorderRadius.only(topLeft: Radius.elliptical(1.0, 2.0)),
      const BorderRadius.only(topLeft: Radius.elliptical(-1.0, -2.0)),
101 102 103 104 105 106 107 108 109 110 111 112 113
    );

    expect(
      const BorderRadius.only(
        topLeft: radius1,
        topRight: radius2,
        bottomLeft: radius2,
        bottomRight: radius1,
      ) * 0.0,
      BorderRadius.zero,
    );

    expect(
114 115
      BorderRadius.circular(15.0) / 10.0,
      BorderRadius.circular(1.5),
116 117 118
    );

    expect(
119 120
      BorderRadius.circular(15.0) ~/ 10.0,
      BorderRadius.circular(1.0),
121 122 123
    );

    expect(
124 125
      BorderRadius.circular(15.0) % 10.0,
      BorderRadius.circular(5.0),
126 127 128 129
    );
  });

  test('BorderRadius.lerp() invariants', () {
130 131
    final BorderRadius a = BorderRadius.circular(10.0);
    final BorderRadius b = BorderRadius.circular(20.0);
132 133
    expect(BorderRadius.lerp(a, b, 0.25), equals(a * 1.25));
    expect(BorderRadius.lerp(a, b, 0.25), equals(b * 0.625));
134 135
    expect(BorderRadius.lerp(a, b, 0.25), equals(a + BorderRadius.circular(2.5)));
    expect(BorderRadius.lerp(a, b, 0.25), equals(b - BorderRadius.circular(7.5)));
136 137 138 139 140 141 142

    expect(BorderRadius.lerp(null, null, 0.25), isNull);
    expect(BorderRadius.lerp(null, b, 0.25), equals(b * 0.25));
    expect(BorderRadius.lerp(a, null, 0.25), equals(a * 0.75));
  });

  test('BorderRadius.lerp() crazy', () {
143 144 145 146 147 148 149 150 151 152 153 154 155 156 157
    const BorderRadius a = BorderRadius.only(
      topLeft: Radius.elliptical(10.0, 20.0),
      topRight: Radius.elliptical(30.0, 40.0),
      bottomLeft: Radius.elliptical(50.0, 60.0),
    );
    const BorderRadius b = BorderRadius.only(
      topRight: Radius.elliptical(100.0, 110.0),
      bottomLeft: Radius.elliptical(120.0, 130.0),
      bottomRight: Radius.elliptical(140.0, 150.0),
    );
    const BorderRadius c = BorderRadius.only(
      topLeft: Radius.elliptical(5.0, 10.0), // 10,20 -> 0
      topRight: Radius.elliptical(65.0, 75.0), // 30,40 -> 100,110
      bottomLeft: Radius.elliptical(85.0, 95.0), // 50,60 -> 120,130
      bottomRight: Radius.elliptical(70.0, 75.0), // 0,0 -> 140,150
158 159 160 161 162
    );
    expect(BorderRadius.lerp(a, b, 0.5), c);
  });

  test('BorderRadiusDirectional control test', () {
Dan Field's avatar
Dan Field committed
163
    const Rect rect = Rect.fromLTRB(19.0, 23.0, 29.0, 31.0);
164 165
    BorderRadiusDirectional borderRadius;

166
    borderRadius = const BorderRadiusDirectional.all(Radius.elliptical(5.0, 7.0));
167 168 169 170 171
    expect(borderRadius, hasOneLineDescription);
    expect(borderRadius.topStart, const Radius.elliptical(5.0, 7.0));
    expect(borderRadius.topEnd, const Radius.elliptical(5.0, 7.0));
    expect(borderRadius.bottomStart, const Radius.elliptical(5.0, 7.0));
    expect(borderRadius.bottomEnd, const Radius.elliptical(5.0, 7.0));
172 173
    expect(borderRadius.resolve(TextDirection.ltr).toRRect(rect), RRect.fromRectXY(rect, 5.0, 7.0));
    expect(borderRadius.resolve(TextDirection.rtl).toRRect(rect), RRect.fromRectXY(rect, 5.0, 7.0));
174

175
    borderRadius = BorderRadiusDirectional.circular(3.0);
176 177 178 179 180
    expect(borderRadius, hasOneLineDescription);
    expect(borderRadius.topStart, const Radius.elliptical(3.0, 3.0));
    expect(borderRadius.topEnd, const Radius.elliptical(3.0, 3.0));
    expect(borderRadius.bottomStart, const Radius.elliptical(3.0, 3.0));
    expect(borderRadius.bottomEnd, const Radius.elliptical(3.0, 3.0));
181 182
    expect(borderRadius.resolve(TextDirection.ltr).toRRect(rect), RRect.fromRectXY(rect, 3.0, 3.0));
    expect(borderRadius.resolve(TextDirection.rtl).toRRect(rect), RRect.fromRectXY(rect, 3.0, 3.0));
183

184 185
    const Radius radius1 = Radius.elliptical(89.0, 87.0);
    const Radius radius2 = Radius.elliptical(103.0, 107.0);
186 187 188 189 190 191 192

    borderRadius = const BorderRadiusDirectional.vertical(top: radius1, bottom: radius2);
    expect(borderRadius, hasOneLineDescription);
    expect(borderRadius.topStart, radius1);
    expect(borderRadius.topEnd, radius1);
    expect(borderRadius.bottomStart, radius2);
    expect(borderRadius.bottomEnd, radius2);
193
    expect(borderRadius.resolve(TextDirection.ltr).toRRect(rect), RRect.fromRectAndCorners(
194 195 196 197 198 199
      rect,
      topLeft: radius1,
      topRight: radius1,
      bottomLeft: radius2,
      bottomRight: radius2,
    ));
200
    expect(borderRadius.resolve(TextDirection.rtl).toRRect(rect), RRect.fromRectAndCorners(
201 202 203 204 205 206 207 208 209 210 211 212 213
      rect,
      topLeft: radius1,
      topRight: radius1,
      bottomLeft: radius2,
      bottomRight: radius2,
    ));

    borderRadius = const BorderRadiusDirectional.horizontal(start: radius1, end: radius2);
    expect(borderRadius, hasOneLineDescription);
    expect(borderRadius.topStart, radius1);
    expect(borderRadius.topEnd, radius2);
    expect(borderRadius.bottomStart, radius1);
    expect(borderRadius.bottomEnd, radius2);
214
    expect(borderRadius.resolve(TextDirection.ltr).toRRect(rect), RRect.fromRectAndCorners(
215 216 217 218 219 220
      rect,
      topLeft: radius1,
      topRight: radius2,
      bottomLeft: radius1,
      bottomRight: radius2,
    ));
221
    expect(borderRadius.resolve(TextDirection.rtl).toRRect(rect), RRect.fromRectAndCorners(
222 223 224 225 226 227 228
      rect,
      topLeft: radius2,
      topRight: radius1,
      bottomLeft: radius2,
      bottomRight: radius1,
    ));

229
    borderRadius = BorderRadiusDirectional.zero;
230 231 232 233 234
    expect(borderRadius, hasOneLineDescription);
    expect(borderRadius.topStart, Radius.zero);
    expect(borderRadius.topEnd, Radius.zero);
    expect(borderRadius.bottomStart, Radius.zero);
    expect(borderRadius.bottomEnd, Radius.zero);
235 236
    expect(borderRadius.resolve(TextDirection.ltr).toRRect(rect), RRect.fromRectAndCorners(rect));
    expect(borderRadius.resolve(TextDirection.rtl).toRRect(rect), RRect.fromRectAndCorners(rect));
237 238 239 240 241 242 243

    borderRadius = const BorderRadiusDirectional.only(topEnd: radius1, bottomEnd: radius2);
    expect(borderRadius, hasOneLineDescription);
    expect(borderRadius.topStart, Radius.zero);
    expect(borderRadius.topEnd, radius1);
    expect(borderRadius.bottomStart, Radius.zero);
    expect(borderRadius.bottomEnd, radius2);
244
    expect(borderRadius.resolve(TextDirection.ltr).toRRect(rect), RRect.fromRectAndCorners(
245 246 247 248
      rect,
      topRight: radius1,
      bottomRight: radius2,
    ));
249
    expect(borderRadius.resolve(TextDirection.rtl).toRRect(rect), RRect.fromRectAndCorners(
250 251 252 253 254 255
      rect,
      topLeft: radius1,
      bottomLeft: radius2,
    ));

    expect(
256 257
      const BorderRadiusDirectional.only(topStart: Radius.elliptical(1.0, 2.0)).subtract(const BorderRadiusDirectional.only(topStart: Radius.elliptical(3.0, 5.0))),
      const BorderRadiusDirectional.only(topStart: Radius.elliptical(-2.0, -3.0)),
258 259
    );
    expect(
260 261
      const BorderRadiusDirectional.only(topEnd: Radius.elliptical(1.0, 2.0)).add(const BorderRadiusDirectional.only(topStart: Radius.elliptical(3.0, 5.0))),
      const BorderRadiusDirectional.only(topStart: Radius.elliptical(3.0, 5.0), topEnd: Radius.elliptical(1.0, 2.0)),
262 263 264
    );

    expect(
265 266
      const BorderRadiusDirectional.only(topStart: Radius.elliptical(1.0, 2.0)) - const BorderRadiusDirectional.only(topStart: Radius.elliptical(3.0, 5.0)),
      const BorderRadiusDirectional.only(topStart: Radius.elliptical(-2.0, -3.0)),
267 268
    );
    expect(
269 270
      const BorderRadiusDirectional.only(topEnd: Radius.elliptical(1.0, 2.0)) + const BorderRadiusDirectional.only(topStart: Radius.elliptical(3.0, 5.0)),
      const BorderRadiusDirectional.only(topStart: Radius.elliptical(3.0, 5.0), topEnd: Radius.elliptical(1.0, 2.0)),
271 272 273
    );

    expect(
274 275
      -const BorderRadiusDirectional.only(topStart: Radius.elliptical(1.0, 2.0)),
      const BorderRadiusDirectional.only(topStart: Radius.elliptical(-1.0, -2.0)),
276 277 278 279 280 281 282 283 284 285 286 287 288
    );

    expect(
      const BorderRadiusDirectional.only(
        topStart: radius1,
        topEnd: radius2,
        bottomStart: radius2,
        bottomEnd: radius1,
      ) * 0.0,
      BorderRadiusDirectional.zero,
    );

    expect(
289 290
      BorderRadiusDirectional.circular(15.0) / 10.0,
      BorderRadiusDirectional.circular(1.5),
291 292 293
    );

    expect(
294 295
      BorderRadiusDirectional.circular(15.0) ~/ 10.0,
      BorderRadiusDirectional.circular(1.0),
296 297 298
    );

    expect(
299 300
      BorderRadiusDirectional.circular(15.0) % 10.0,
      BorderRadiusDirectional.circular(5.0),
301 302 303 304
    );
  });

  test('BorderRadiusDirectional.lerp() invariants', () {
305 306
    final BorderRadiusDirectional a = BorderRadiusDirectional.circular(10.0);
    final BorderRadiusDirectional b = BorderRadiusDirectional.circular(20.0);
307 308
    expect(BorderRadiusDirectional.lerp(a, b, 0.25), equals(a * 1.25));
    expect(BorderRadiusDirectional.lerp(a, b, 0.25), equals(b * 0.625));
309 310
    expect(BorderRadiusDirectional.lerp(a, b, 0.25), equals(a + BorderRadiusDirectional.circular(2.5)));
    expect(BorderRadiusDirectional.lerp(a, b, 0.25), equals(b - BorderRadiusDirectional.circular(7.5)));
311 312 313 314 315 316 317

    expect(BorderRadiusDirectional.lerp(null, null, 0.25), isNull);
    expect(BorderRadiusDirectional.lerp(null, b, 0.25), equals(b * 0.25));
    expect(BorderRadiusDirectional.lerp(a, null, 0.25), equals(a * 0.75));
  });

  test('BorderRadiusDirectional.lerp() crazy', () {
318 319 320 321 322 323 324 325 326 327 328 329 330 331 332
    const BorderRadiusDirectional a = BorderRadiusDirectional.only(
      topStart: Radius.elliptical(10.0, 20.0),
      topEnd: Radius.elliptical(30.0, 40.0),
      bottomStart: Radius.elliptical(50.0, 60.0),
    );
    const BorderRadiusDirectional b = BorderRadiusDirectional.only(
      topEnd: Radius.elliptical(100.0, 110.0),
      bottomStart: Radius.elliptical(120.0, 130.0),
      bottomEnd: Radius.elliptical(140.0, 150.0),
    );
    const BorderRadiusDirectional c = BorderRadiusDirectional.only(
      topStart: Radius.elliptical(5.0, 10.0), // 10,20 -> 0
      topEnd: Radius.elliptical(65.0, 75.0), // 30,40 -> 100,110
      bottomStart: Radius.elliptical(85.0, 95.0), // 50,60 -> 120,130
      bottomEnd: Radius.elliptical(70.0, 75.0), // 0,0 -> 140,150
333 334 335 336 337
    );
    expect(BorderRadiusDirectional.lerp(a, b, 0.5), c);
  });

  test('BorderRadiusGeometry.lerp()', () {
338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358
    const BorderRadius a = BorderRadius.only(
      topLeft: Radius.elliptical(10.0, 20.0),
      topRight: Radius.elliptical(30.0, 40.0),
      bottomLeft: Radius.elliptical(50.0, 60.0),
    );
    const BorderRadiusDirectional b = BorderRadiusDirectional.only(
      topEnd: Radius.elliptical(100.0, 110.0),
      bottomStart: Radius.elliptical(120.0, 130.0),
      bottomEnd: Radius.elliptical(140.0, 150.0),
    );
    const BorderRadius ltr = BorderRadius.only(
      topLeft: Radius.elliptical(5.0, 10.0), // 10,20 -> 0
      topRight: Radius.elliptical(65.0, 75.0), // 30,40 -> 100,110
      bottomLeft: Radius.elliptical(85.0, 95.0), // 50,60 -> 120,130
      bottomRight: Radius.elliptical(70.0, 75.0), // 0,0 -> 140,150
    );
    const BorderRadius rtl = BorderRadius.only(
      topLeft: Radius.elliptical(55.0, 65.0), // 10,20 -> 100,110
      topRight: Radius.elliptical(15.0, 20.0), // 30,40 -> 0,0
      bottomLeft: Radius.elliptical(95.0, 105.0), // 50,60 -> 140,150
      bottomRight: Radius.elliptical(60.0, 65.0), // 0,0 -> 120,130
359
    );
360 361 362 363
    expect(BorderRadiusGeometry.lerp(a, b, 0.5)!.resolve(TextDirection.ltr), ltr);
    expect(BorderRadiusGeometry.lerp(a, b, 0.5)!.resolve(TextDirection.rtl), rtl);
    expect(BorderRadiusGeometry.lerp(a, b, 0.0)!.resolve(TextDirection.ltr), a);
    expect(BorderRadiusGeometry.lerp(a, b, 1.0)!.resolve(TextDirection.rtl), b.resolve(TextDirection.rtl));
364 365 366
  });

  test('BorderRadiusGeometry subtract', () {
367 368 369 370
    const BorderRadius a = BorderRadius.only(
      topLeft: Radius.elliptical(10.0, 20.0),
      topRight: Radius.elliptical(30.0, 40.0),
      bottomLeft: Radius.elliptical(50.0, 60.0),
371
    );
372 373 374 375
    const BorderRadiusDirectional b = BorderRadiusDirectional.only(
      topEnd: Radius.elliptical(100.0, 110.0),
      bottomStart: Radius.elliptical(120.0, 130.0),
      bottomEnd: Radius.elliptical(140.0, 150.0),
376
    );
377
    expect(a.subtract(b).resolve(TextDirection.ltr), BorderRadius.only(
378 379 380 381 382
      topLeft: const Radius.elliptical(10.0, 20.0) - Radius.zero,
      topRight: const Radius.elliptical(30.0, 40.0) - const Radius.elliptical(100.0, 110.0),
      bottomLeft: const Radius.elliptical(50.0, 60.0) - const Radius.elliptical(120.0, 130.0),
      bottomRight: Radius.zero - const Radius.elliptical(140.0, 150.0),
    ));
383
    expect(a.subtract(b).resolve(TextDirection.rtl), BorderRadius.only(
384 385 386 387 388 389 390 391
      topLeft: const Radius.elliptical(10.0, 20.0) - const Radius.elliptical(100.0, 110.0),
      topRight: const Radius.elliptical(30.0, 40.0) - Radius.zero,
      bottomLeft: const Radius.elliptical(50.0, 60.0) - const Radius.elliptical(140.0, 150.0),
      bottomRight: Radius.zero - const Radius.elliptical(120.0, 130.0),
    ));
  });

  test('BorderRadiusGeometry add', () {
392 393 394 395
    const BorderRadius a = BorderRadius.only(
      topLeft: Radius.elliptical(10.0, 20.0),
      topRight: Radius.elliptical(30.0, 40.0),
      bottomLeft: Radius.elliptical(50.0, 60.0),
396
    );
397 398 399 400
    const BorderRadiusDirectional b = BorderRadiusDirectional.only(
      topEnd: Radius.elliptical(100.0, 110.0),
      bottomStart: Radius.elliptical(120.0, 130.0),
      bottomEnd: Radius.elliptical(140.0, 150.0),
401
    );
402
    expect(a.add(b).resolve(TextDirection.ltr), BorderRadius.only(
403 404 405 406 407
      topLeft: const Radius.elliptical(10.0, 20.0) + Radius.zero,
      topRight: const Radius.elliptical(30.0, 40.0) + const Radius.elliptical(100.0, 110.0),
      bottomLeft: const Radius.elliptical(50.0, 60.0) + const Radius.elliptical(120.0, 130.0),
      bottomRight: Radius.zero + const Radius.elliptical(140.0, 150.0),
    ));
408
    expect(a.add(b).resolve(TextDirection.rtl), BorderRadius.only(
409 410 411 412 413 414 415 416
      topLeft: const Radius.elliptical(10.0, 20.0) + const Radius.elliptical(100.0, 110.0),
      topRight: const Radius.elliptical(30.0, 40.0) + Radius.zero,
      bottomLeft: const Radius.elliptical(50.0, 60.0) + const Radius.elliptical(140.0, 150.0),
      bottomRight: Radius.zero + const Radius.elliptical(120.0, 130.0),
    ));
  });

  test('BorderRadiusGeometry add and multiply', () {
417 418 419 420
    const BorderRadius a = BorderRadius.only(
      topLeft: Radius.elliptical(10.0, 20.0),
      topRight: Radius.elliptical(30.0, 40.0),
      bottomLeft: Radius.elliptical(50.0, 60.0),
421
    );
422 423 424 425
    const BorderRadiusDirectional b = BorderRadiusDirectional.only(
      topEnd: Radius.elliptical(100.0, 110.0),
      bottomStart: Radius.elliptical(120.0, 130.0),
      bottomEnd: Radius.elliptical(140.0, 150.0),
426
    );
427
    expect((a.add(b) * 0.5).resolve(TextDirection.ltr), BorderRadius.only(
428 429 430 431 432
      topLeft: (const Radius.elliptical(10.0, 20.0) + Radius.zero) / 2.0,
      topRight: (const Radius.elliptical(30.0, 40.0) + const Radius.elliptical(100.0, 110.0)) / 2.0,
      bottomLeft: (const Radius.elliptical(50.0, 60.0) + const Radius.elliptical(120.0, 130.0)) / 2.0,
      bottomRight: (Radius.zero + const Radius.elliptical(140.0, 150.0)) / 2.0,
    ));
433
    expect((a.add(b) * 0.5).resolve(TextDirection.rtl), BorderRadius.only(
434 435 436 437 438 439 440 441
      topLeft: (const Radius.elliptical(10.0, 20.0) + const Radius.elliptical(100.0, 110.0)) / 2.0,
      topRight: (const Radius.elliptical(30.0, 40.0) + Radius.zero) / 2.0,
      bottomLeft: (const Radius.elliptical(50.0, 60.0) + const Radius.elliptical(140.0, 150.0)) / 2.0,
      bottomRight: (Radius.zero + const Radius.elliptical(120.0, 130.0)) / 2.0,
    ));
  });

  test('BorderRadiusGeometry add and subtract', () {
442 443
    const BorderRadius a = BorderRadius.only(
      topLeft: Radius.elliptical(300.0, 500.0),
444
    );
445 446
    const BorderRadiusDirectional b = BorderRadiusDirectional.only(
      topEnd: Radius.elliptical(30.0, 50.0),
447
    );
448 449
    const BorderRadius c = BorderRadius.only(
      bottomLeft: Radius.elliptical(3.0, 5.0),
450 451
    );

452 453 454
    const BorderRadius ltr = BorderRadius.only(
      topLeft: Radius.elliptical(300.0, 500.0), // tL + 0 - 0
      topRight: Radius.elliptical(30.0, 50.0), // 0 + tE - 0
455
      bottomLeft: Radius.elliptical(-3.0, -5.0), // 0 + 0 - 0
456
    );
457
    const BorderRadius rtl = BorderRadius.only(
458 459
      topLeft: Radius.elliptical(330.0, 550.0), // 0 + 0 - 0
      bottomLeft: Radius.elliptical(-3.0, -5.0), // 0 + 0 - 0
460
    );
461 462
    expect(a.add(b.subtract(c)).resolve(TextDirection.ltr), ltr);
    expect(a.add(b.subtract(c)).resolve(TextDirection.rtl), rtl);
463 464 465
  });

  test('BorderRadiusGeometry add and subtract, more', () {
466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495
    const BorderRadius a = BorderRadius.only(
      topLeft: Radius.elliptical(300.0, 300.0),
      topRight: Radius.elliptical(500.0, 500.0),
      bottomLeft: Radius.elliptical(700.0, 700.0),
      bottomRight: Radius.elliptical(900.0, 900.0),
    );
    const BorderRadiusDirectional b = BorderRadiusDirectional.only(
      topStart: Radius.elliptical(30.0, 30.0),
      topEnd: Radius.elliptical(50.0, 50.0),
      bottomStart: Radius.elliptical(70.0, 70.0),
      bottomEnd: Radius.elliptical(90.0, 90.0),
    );
    const BorderRadius c = BorderRadius.only(
      topLeft: Radius.elliptical(3.0, 3.0),
      topRight: Radius.elliptical(5.0, 5.0),
      bottomLeft: Radius.elliptical(7.0, 7.0),
      bottomRight: Radius.elliptical(9.0, 9.0),
    );

    const BorderRadius ltr = BorderRadius.only(
      topLeft: Radius.elliptical(327.0, 327.0), // tL + tS - tL
      topRight: Radius.elliptical(545.0, 545.0), // tR + tE - tR
      bottomLeft: Radius.elliptical(763.0, 763.0), // bL + bS - bL
      bottomRight: Radius.elliptical(981.0, 981.0), // bR + bE - bR
    );
    const BorderRadius rtl = BorderRadius.only(
      topLeft: Radius.elliptical(347.0, 347.0), // tL + tE - tL
      topRight: Radius.elliptical(525.0, 525.0), // tR + TS - tR
      bottomLeft: Radius.elliptical(783.0, 783.0), // bL + bE + bL
      bottomRight: Radius.elliptical(961.0, 961.0), // bR + bS - bR
496
    );
497 498
    expect(a.add(b.subtract(c)).resolve(TextDirection.ltr), ltr);
    expect(a.add(b.subtract(c)).resolve(TextDirection.rtl), rtl);
499 500 501
  });

  test('BorderRadiusGeometry operators', () {
502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523
    const BorderRadius a = BorderRadius.only(
      topLeft: Radius.elliptical(10.0, 20.0),
      topRight: Radius.elliptical(30.0, 40.0),
      bottomLeft: Radius.elliptical(50.0, 60.0),
    );
    const BorderRadiusDirectional b = BorderRadiusDirectional.only(
      topEnd: Radius.elliptical(100.0, 110.0),
      bottomStart: Radius.elliptical(120.0, 130.0),
      bottomEnd: Radius.elliptical(140.0, 150.0),
    );

    const BorderRadius ltr = BorderRadius.only(
      topLeft: Radius.elliptical(5.0, 10.0), // 10,20 -> 0
      topRight: Radius.elliptical(65.0, 75.0), // 30,40 -> 100,110
      bottomLeft: Radius.elliptical(85.0, 95.0), // 50,60 -> 120,130
      bottomRight: Radius.elliptical(70.0, 75.0), // 0,0 -> 140,150
    );
    const BorderRadius rtl = BorderRadius.only(
      topLeft: Radius.elliptical(55.0, 65.0), // 10,20 -> 100,110
      topRight: Radius.elliptical(15.0, 20.0), // 30,40 -> 0,0
      bottomLeft: Radius.elliptical(95.0, 105.0), // 50,60 -> 140,150
      bottomRight: Radius.elliptical(60.0, 65.0), // 0,0 -> 120,130
524
    );
525 526 527 528
    expect(a.add(b.subtract(a) * 0.5).resolve(TextDirection.ltr), ltr);
    expect(a.add(b.subtract(a) * 0.5).resolve(TextDirection.rtl), rtl);
    expect(a.add(b.subtract(a) * 0.0).resolve(TextDirection.ltr), a);
    expect(a.add(b.subtract(a) * 1.0).resolve(TextDirection.rtl), b.resolve(TextDirection.rtl));
529
  });
530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549

  test('BorderRadius copyWith, merge, ==, hashCode basics', () {
    const BorderRadius firstRadius = BorderRadius.all(Radius.circular(5.0));
    final BorderRadius secondRadius = firstRadius.copyWith();
    expect(firstRadius, secondRadius);
    expect(firstRadius.hashCode, secondRadius.hashCode);
  });

  test('BorderRadius copyWith parameters', () {
    const Radius radius = Radius.circular(10);
    const BorderRadius borderRadius = BorderRadius.all(radius);
    expect(borderRadius.copyWith(topLeft: Radius.zero).topLeft, Radius.zero);
    expect(borderRadius.copyWith(topLeft: Radius.zero).copyWith(topLeft: radius), borderRadius);
    expect(borderRadius.copyWith(topRight: Radius.zero).topRight, Radius.zero);
    expect(borderRadius.copyWith(topRight: Radius.zero).copyWith(topRight: radius), borderRadius);
    expect(borderRadius.copyWith(bottomLeft: Radius.zero).bottomLeft, Radius.zero);
    expect(borderRadius.copyWith(bottomLeft: Radius.zero).copyWith(bottomLeft: radius), borderRadius);
    expect(borderRadius.copyWith(bottomRight: Radius.zero).bottomRight, Radius.zero);
    expect(borderRadius.copyWith(bottomRight: Radius.zero).copyWith(bottomRight: radius), borderRadius);
  });
550
}