basic_test.dart 37.1 KB
Newer Older
Ian Hickson's avatar
Ian Hickson committed
1
// Copyright 2014 The Flutter Authors. All rights reserved.
2 3 4
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

5 6 7 8
// This file is run as part of a reduced test set in CI on Mac and Windows
// machines.
@Tags(<String>['reduced-test-set'])

9
import 'dart:math' as math;
10
import 'dart:ui' as ui;
11
import 'dart:ui';
12

13
import 'package:flutter/gestures.dart';
14
import 'package:flutter/material.dart';
15
import 'package:flutter/rendering.dart';
16
import 'package:flutter_test/flutter_test.dart';
17 18

void main() {
19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108
  group('RawImage', () {
    testWidgets('properties', (WidgetTester tester) async {
      final ui.Image image1 = (await tester.runAsync<ui.Image>(() => createTestImage()))!;

      await tester.pumpWidget(
        Directionality(
          textDirection: TextDirection.ltr,
          child: RawImage(image: image1),
        ),
      );
      final RenderImage renderObject = tester.firstRenderObject<RenderImage>(find.byType(RawImage));

      // Expect default values
      expect(renderObject.image!.isCloneOf(image1), true);
      expect(renderObject.debugImageLabel, null);
      expect(renderObject.width, null);
      expect(renderObject.height, null);
      expect(renderObject.scale, 1.0);
      expect(renderObject.color, null);
      expect(renderObject.opacity, null);
      expect(renderObject.colorBlendMode, null);
      expect(renderObject.fit, null);
      expect(renderObject.alignment, Alignment.center);
      expect(renderObject.repeat, ImageRepeat.noRepeat);
      expect(renderObject.centerSlice, null);
      expect(renderObject.matchTextDirection, false);
      expect(renderObject.invertColors, false);
      expect(renderObject.filterQuality, FilterQuality.low);
      expect(renderObject.isAntiAlias, false);

      final ui.Image image2 = (await tester.runAsync<ui.Image>(() => createTestImage(width: 2, height: 2)))!;
      const String debugImageLabel = 'debugImageLabel';
      const double width = 1;
      const double height = 1;
      const double scale = 2.0;
      const Color color = Colors.black;
      const Animation<double> opacity = AlwaysStoppedAnimation<double>(0.0);
      const BlendMode colorBlendMode = BlendMode.difference;
      const BoxFit fit = BoxFit.contain;
      const AlignmentGeometry alignment = Alignment.topCenter;
      const ImageRepeat repeat = ImageRepeat.repeat;
      const Rect centerSlice = Rect.fromLTWH(0, 0, width, height);
      const bool matchTextDirection = true;
      const bool invertColors = true;
      const FilterQuality filterQuality = FilterQuality.high;
      const bool isAntiAlias = true;

      await tester.pumpWidget(
        Directionality(
          textDirection: TextDirection.ltr,
          child: RawImage(
            image: image2,
            debugImageLabel: debugImageLabel,
            width: width,
            height: height,
            scale: scale,
            color: color,
            opacity: opacity,
            colorBlendMode: colorBlendMode,
            fit: fit,
            alignment: alignment,
            repeat: repeat,
            centerSlice: centerSlice,
            matchTextDirection: matchTextDirection,
            invertColors: invertColors,
            filterQuality: filterQuality,
            isAntiAlias: isAntiAlias,
          ),
        ),
      );

      expect(renderObject.image!.isCloneOf(image2), true);
      expect(renderObject.debugImageLabel, debugImageLabel);
      expect(renderObject.width, width);
      expect(renderObject.height, height);
      expect(renderObject.scale, scale);
      expect(renderObject.color, color);
      expect(renderObject.opacity, opacity);
      expect(renderObject.colorBlendMode, colorBlendMode);
      expect(renderObject.fit, fit);
      expect(renderObject.alignment, alignment);
      expect(renderObject.repeat, repeat);
      expect(renderObject.centerSlice, centerSlice);
      expect(renderObject.matchTextDirection, matchTextDirection);
      expect(renderObject.invertColors, invertColors);
      expect(renderObject.filterQuality, filterQuality);
      expect(renderObject.isAntiAlias, isAntiAlias);
    });
  });

109 110 111 112
  group('PhysicalShape', () {
    testWidgets('properties', (WidgetTester tester) async {
      await tester.pumpWidget(
        const PhysicalShape(
113
          clipper: ShapeBorderClipper(shape: CircleBorder()),
114
          elevation: 2.0,
115 116
          color: Color(0xFF0000FF),
          shadowColor: Color(0xFF00FF00),
117
        ),
118 119
      );
      final RenderPhysicalShape renderObject = tester.renderObject(find.byType(PhysicalShape));
120
      expect(renderObject.clipper, const ShapeBorderClipper(shape: CircleBorder()));
121 122 123 124 125 126 127
      expect(renderObject.color, const Color(0xFF0000FF));
      expect(renderObject.shadowColor, const Color(0xFF00FF00));
      expect(renderObject.elevation, 2.0);
    });

    testWidgets('hit test', (WidgetTester tester) async {
      await tester.pumpWidget(
128
        PhysicalShape(
129
          clipper: const ShapeBorderClipper(shape: CircleBorder()),
130 131 132
          elevation: 2.0,
          color: const Color(0xFF0000FF),
          shadowColor: const Color(0xFF00FF00),
133
          child: Container(color: const Color(0xFF0000FF)),
134
        ),
135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150
      );

      final RenderPhysicalShape renderPhysicalShape =
        tester.renderObject(find.byType(PhysicalShape));

      // The viewport is 800x600, the CircleBorder is centered and fits
      // the shortest edge, so we get a circle of radius 300, centered at
      // (400, 300).
      //
      // We test by sampling a few points around the left-most point of the
      // circle (100, 300).

      expect(tester.hitTestOnBinding(const Offset(99.0, 300.0)), doesNotHit(renderPhysicalShape));
      expect(tester.hitTestOnBinding(const Offset(100.0, 300.0)), hits(renderPhysicalShape));
      expect(tester.hitTestOnBinding(const Offset(100.0, 299.0)), doesNotHit(renderPhysicalShape));
      expect(tester.hitTestOnBinding(const Offset(100.0, 301.0)), doesNotHit(renderPhysicalShape));
151
    });
152 153 154

  });

Emmanuel Garcia's avatar
Emmanuel Garcia committed
155 156
  group('FractionalTranslation', () {
    testWidgets('hit test - entirely inside the bounding box', (WidgetTester tester) async {
157
      final GlobalKey key1 = GlobalKey();
158
      bool pointerDown = false;
Emmanuel Garcia's avatar
Emmanuel Garcia committed
159 160

      await tester.pumpWidget(
161 162
        Center(
          child: FractionalTranslation(
Emmanuel Garcia's avatar
Emmanuel Garcia committed
163
            translation: Offset.zero,
164
            child: Listener(
Emmanuel Garcia's avatar
Emmanuel Garcia committed
165
              onPointerDown: (PointerDownEvent event) {
166
                pointerDown = true;
Emmanuel Garcia's avatar
Emmanuel Garcia committed
167
              },
168
              child: SizedBox(
Emmanuel Garcia's avatar
Emmanuel Garcia committed
169 170 171
                key: key1,
                width: 100.0,
                height: 100.0,
172
                child: Container(
173
                  color: const Color(0xFF0000FF),
Emmanuel Garcia's avatar
Emmanuel Garcia committed
174 175
                ),
              ),
176 177
            ),
          ),
178
        ),
Emmanuel Garcia's avatar
Emmanuel Garcia committed
179
      );
180
      expect(pointerDown, isFalse);
Emmanuel Garcia's avatar
Emmanuel Garcia committed
181
      await tester.tap(find.byKey(key1));
182
      expect(pointerDown, isTrue);
Emmanuel Garcia's avatar
Emmanuel Garcia committed
183 184 185
    });

    testWidgets('hit test - partially inside the bounding box', (WidgetTester tester) async {
186
      final GlobalKey key1 = GlobalKey();
187
      bool pointerDown = false;
Emmanuel Garcia's avatar
Emmanuel Garcia committed
188 189

      await tester.pumpWidget(
190 191
        Center(
          child: FractionalTranslation(
Emmanuel Garcia's avatar
Emmanuel Garcia committed
192
            translation: const Offset(0.5, 0.5),
193
            child: Listener(
Emmanuel Garcia's avatar
Emmanuel Garcia committed
194
              onPointerDown: (PointerDownEvent event) {
195
                pointerDown = true;
Emmanuel Garcia's avatar
Emmanuel Garcia committed
196
              },
197
              child: SizedBox(
Emmanuel Garcia's avatar
Emmanuel Garcia committed
198 199 200
                key: key1,
                width: 100.0,
                height: 100.0,
201
                child: Container(
202
                  color: const Color(0xFF0000FF),
Emmanuel Garcia's avatar
Emmanuel Garcia committed
203 204
                ),
              ),
205 206
            ),
          ),
207
        ),
Emmanuel Garcia's avatar
Emmanuel Garcia committed
208
      );
209
      expect(pointerDown, isFalse);
Emmanuel Garcia's avatar
Emmanuel Garcia committed
210
      await tester.tap(find.byKey(key1));
211
      expect(pointerDown, isTrue);
Emmanuel Garcia's avatar
Emmanuel Garcia committed
212 213 214
    });

    testWidgets('hit test - completely outside the bounding box', (WidgetTester tester) async {
215
      final GlobalKey key1 = GlobalKey();
216
      bool pointerDown = false;
Emmanuel Garcia's avatar
Emmanuel Garcia committed
217 218

      await tester.pumpWidget(
219 220
        Center(
          child: FractionalTranslation(
Emmanuel Garcia's avatar
Emmanuel Garcia committed
221
            translation: const Offset(1.0, 1.0),
222
            child: Listener(
Emmanuel Garcia's avatar
Emmanuel Garcia committed
223
              onPointerDown: (PointerDownEvent event) {
224
                pointerDown = true;
Emmanuel Garcia's avatar
Emmanuel Garcia committed
225
              },
226
              child: SizedBox(
Emmanuel Garcia's avatar
Emmanuel Garcia committed
227 228 229
                key: key1,
                width: 100.0,
                height: 100.0,
230
                child: Container(
231
                  color: const Color(0xFF0000FF),
Emmanuel Garcia's avatar
Emmanuel Garcia committed
232 233
                ),
              ),
234 235
            ),
          ),
236
        ),
Emmanuel Garcia's avatar
Emmanuel Garcia committed
237
      );
238
      expect(pointerDown, isFalse);
Emmanuel Garcia's avatar
Emmanuel Garcia committed
239
      await tester.tap(find.byKey(key1));
240
      expect(pointerDown, isTrue);
Emmanuel Garcia's avatar
Emmanuel Garcia committed
241
    });
242 243 244 245 246 247 248

    testWidgets('semantics bounds are updated', (WidgetTester tester) async {
      final GlobalKey fractionalTranslationKey = GlobalKey();
      final GlobalKey textKey = GlobalKey();
      Offset offset = const Offset(0.4, 0.4);

      await tester.pumpWidget(
249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270
        StatefulBuilder(
          builder: (BuildContext context, StateSetter setState) {
            return Directionality(
              textDirection: TextDirection.ltr,
              child: Center(
                child: Semantics(
                  explicitChildNodes: true,
                  child: FractionalTranslation(
                    key: fractionalTranslationKey,
                    translation: offset,
                    child: GestureDetector(
                      onTap: () {
                        setState(() {
                          offset = const Offset(0.8, 0.8);
                        });
                      },
                      child: SizedBox(
                        width: 100.0,
                        height: 100.0,
                        child: Text(
                          'foo',
                          key: textKey,
271 272 273 274 275
                        ),
                      ),
                    ),
                  ),
                ),
276 277 278
              ),
            );
          },
279
        ),
280 281 282 283 284 285 286 287 288 289 290 291
      );

      expect(
        tester.getSemantics(find.byKey(textKey)).transform,
        Matrix4(
          3.0, 0.0, 0.0, 0.0,
          0.0, 3.0, 0.0, 0.0,
          0.0, 0.0, 1.0, 0.0,
          1170.0, 870.0, 0.0, 1.0,
        ),
      );

292
      await tester.tap(find.byKey(fractionalTranslationKey), warnIfMissed: false); // RenderFractionalTranslation can't be hit
293 294 295 296 297 298 299 300 301 302 303
      await tester.pump();
      expect(
        tester.getSemantics(find.byKey(textKey)).transform,
        Matrix4(
          3.0, 0.0, 0.0, 0.0,
          0.0, 3.0, 0.0, 0.0,
          0.0, 0.0, 1.0, 0.0,
          1290.0, 990.0, 0.0, 1.0,
        ),
      );
    });
Emmanuel Garcia's avatar
Emmanuel Garcia committed
304
  });
305

306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451
  group('Semantics', () {
    testWidgets('Semantics can set attributed Text', (WidgetTester tester) async {
      final UniqueKey key = UniqueKey();
      await tester.pumpWidget(
        MaterialApp(
          home: Scaffold(
            body: Semantics(
              key: key,
              attributedLabel: AttributedString(
                'label',
                attributes: <StringAttribute>[
                  SpellOutStringAttribute(range: const TextRange(start: 0, end: 5)),
                ],
              ),
              attributedValue: AttributedString(
                'value',
                attributes: <StringAttribute>[
                  LocaleStringAttribute(range: const TextRange(start: 0, end: 5), locale: const Locale('en', 'MX')),
                ],
              ),
              attributedHint: AttributedString(
                'hint',
                attributes: <StringAttribute>[
                  SpellOutStringAttribute(range: const TextRange(start: 1, end: 2)),
                ],
              ),
              child: const Placeholder(),
            )
          ),
        )
      );
      final AttributedString attributedLabel = tester.getSemantics(find.byKey(key)).attributedLabel;
      expect(attributedLabel.string, 'label');
      expect(attributedLabel.attributes.length, 1);
      expect(attributedLabel.attributes[0] is SpellOutStringAttribute, isTrue);
      expect(attributedLabel.attributes[0].range, const TextRange(start:0, end: 5));

      final AttributedString attributedValue = tester.getSemantics(find.byKey(key)).attributedValue;
      expect(attributedValue.string, 'value');
      expect(attributedValue.attributes.length, 1);
      expect(attributedValue.attributes[0] is LocaleStringAttribute, isTrue);
      final LocaleStringAttribute valueLocale =  attributedValue.attributes[0] as LocaleStringAttribute;
      expect(valueLocale.range, const TextRange(start:0, end: 5));
      expect(valueLocale.locale, const Locale('en', 'MX'));

      final AttributedString attributedHint = tester.getSemantics(find.byKey(key)).attributedHint;
      expect(attributedHint.string, 'hint');
      expect(attributedHint.attributes.length, 1);
      expect(attributedHint.attributes[0] is SpellOutStringAttribute, isTrue);
      expect(attributedHint.attributes[0].range, const TextRange(start:1, end: 2));
    });

    testWidgets('Semantics can merge attributed strings', (WidgetTester tester) async {
      final UniqueKey key = UniqueKey();
      await tester.pumpWidget(
          MaterialApp(
            home: Scaffold(
                body: Semantics(
                  key: key,
                  attributedLabel: AttributedString(
                    'label',
                    attributes: <StringAttribute>[
                      SpellOutStringAttribute(range: const TextRange(start: 0, end: 5)),
                    ],
                  ),
                  attributedHint: AttributedString(
                    'hint',
                    attributes: <StringAttribute>[
                      SpellOutStringAttribute(range: const TextRange(start: 1, end: 2)),
                    ],
                  ),
                  child: Semantics(
                    attributedLabel: AttributedString(
                      'label',
                      attributes: <StringAttribute>[
                        SpellOutStringAttribute(range: const TextRange(start: 0, end: 5)),
                      ],
                    ),
                    attributedHint: AttributedString(
                      'hint',
                      attributes: <StringAttribute>[
                        SpellOutStringAttribute(range: const TextRange(start: 1, end: 2)),
                      ],
                    ),
                    child: const Placeholder(),
                  )
                )
            ),
          )
      );
      final AttributedString attributedLabel = tester.getSemantics(find.byKey(key)).attributedLabel;
      expect(attributedLabel.string, 'label\nlabel');
      expect(attributedLabel.attributes.length, 2);
      expect(attributedLabel.attributes[0] is SpellOutStringAttribute, isTrue);
      expect(attributedLabel.attributes[0].range, const TextRange(start:0, end: 5));
      expect(attributedLabel.attributes[1] is SpellOutStringAttribute, isTrue);
      expect(attributedLabel.attributes[1].range, const TextRange(start:6, end: 11));

      final AttributedString attributedHint = tester.getSemantics(find.byKey(key)).attributedHint;
      expect(attributedHint.string, 'hint\nhint');
      expect(attributedHint.attributes.length, 2);
      expect(attributedHint.attributes[0] is SpellOutStringAttribute, isTrue);
      expect(attributedHint.attributes[0].range, const TextRange(start:1, end: 2));
      expect(attributedHint.attributes[1] is SpellOutStringAttribute, isTrue);
      expect(attributedHint.attributes[1].range, const TextRange(start:6, end: 7));
    });

    testWidgets('Semantics can merge attributed strings with non attributed string', (WidgetTester tester) async {
      final UniqueKey key = UniqueKey();
      await tester.pumpWidget(
          MaterialApp(
            home: Scaffold(
                body: Semantics(
                    key: key,
                    attributedLabel: AttributedString(
                      'label1',
                      attributes: <StringAttribute>[
                        SpellOutStringAttribute(range: const TextRange(start: 0, end: 5)),
                      ],
                    ),
                    child: Semantics(
                      label: 'label2',
                      child: Semantics(
                        attributedLabel: AttributedString(
                          'label3',
                          attributes: <StringAttribute>[
                            SpellOutStringAttribute(range: const TextRange(start: 1, end: 3)),
                          ],
                        ),
                        child: const Placeholder(),
                      ),
                    )
                )
            ),
          )
      );
      final AttributedString attributedLabel = tester.getSemantics(find.byKey(key)).attributedLabel;
      expect(attributedLabel.string, 'label1\nlabel2\nlabel3');
      expect(attributedLabel.attributes.length, 2);
      expect(attributedLabel.attributes[0] is SpellOutStringAttribute, isTrue);
      expect(attributedLabel.attributes[0].range, const TextRange(start:0, end: 5));
      expect(attributedLabel.attributes[1] is SpellOutStringAttribute, isTrue);
      expect(attributedLabel.attributes[1].range, const TextRange(start:15, end: 17));
    });
  });

452 453 454 455 456 457 458 459 460 461
  group('Row', () {
    testWidgets('multiple baseline aligned children', (WidgetTester tester) async {
      final UniqueKey key1 = UniqueKey();
      final UniqueKey key2 = UniqueKey();
      const double fontSize1 = 54;
      const double fontSize2 = 14;

      await tester.pumpWidget(
        MaterialApp(
          home: Scaffold(
462 463 464 465 466 467 468 469 470 471 472 473 474
            body: Row(
              crossAxisAlignment: CrossAxisAlignment.baseline,
              textBaseline: TextBaseline.alphabetic,
              children: <Widget>[
                Text('big text',
                  key: key1,
                  style: const TextStyle(fontSize: fontSize1),
                ),
                Text('one\ntwo\nthree\nfour\nfive\nsix\nseven',
                  key: key2,
                  style: const TextStyle(fontSize: fontSize2),
                ),
              ],
475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498
            ),
          ),
        ),
      );

      final RenderBox textBox1 = tester.renderObject(find.byKey(key1));
      final RenderBox textBox2 = tester.renderObject(find.byKey(key2));
      final RenderBox rowBox = tester.renderObject(find.byType(Row));

      // The two Texts are baseline aligned, so some portion of them extends
      // both above and below the baseline. The first has a huge font size, so
      // it extends higher above the baseline than usual. The second has many
      // lines, but being aligned by the first line's baseline, they hang far
      // below the baseline. The size of the parent row is just enough to
      // contain both of them.
      const double ahemBaselineLocation = 0.8; // https://web-platform-tests.org/writing-tests/ahem.html
      const double aboveBaseline1 = fontSize1 * ahemBaselineLocation;
      const double belowBaseline1 = fontSize1 * (1 - ahemBaselineLocation);
      const double aboveBaseline2 = fontSize2 * ahemBaselineLocation;
      const double belowBaseline2 = fontSize2 * (1 - ahemBaselineLocation) + fontSize2 * 6;
      final double aboveBaseline = math.max(aboveBaseline1, aboveBaseline2);
      final double belowBaseline = math.max(belowBaseline1, belowBaseline2);
      expect(rowBox.size.height, greaterThan(textBox1.size.height));
      expect(rowBox.size.height, greaterThan(textBox2.size.height));
499
      expect(rowBox.size.height, moreOrLessEquals(aboveBaseline + belowBaseline, epsilon: .001));
500 501 502
      expect(tester.getTopLeft(find.byKey(key1)).dy, 0);
      expect(
        tester.getTopLeft(find.byKey(key2)).dy,
503
        moreOrLessEquals(aboveBaseline1 - aboveBaseline2, epsilon: .001),
504
      );
505
    });
506 507 508 509 510 511 512 513 514 515 516

    testWidgets('baseline aligned children account for a larger, no-baseline child size', (WidgetTester tester) async {
      // Regression test for https://github.com/flutter/flutter/issues/58898
      final UniqueKey key1 = UniqueKey();
      final UniqueKey key2 = UniqueKey();
      const double fontSize1 = 54;
      const double fontSize2 = 14;

      await tester.pumpWidget(
        MaterialApp(
          home: Scaffold(
517 518 519 520 521 522 523 524 525 526 527 528 529 530
            body: Row(
              crossAxisAlignment: CrossAxisAlignment.baseline,
              textBaseline: TextBaseline.alphabetic,
              children: <Widget>[
                Text('big text',
                  key: key1,
                  style: const TextStyle(fontSize: fontSize1),
                ),
                Text('one\ntwo\nthree\nfour\nfive\nsix\nseven',
                  key: key2,
                  style: const TextStyle(fontSize: fontSize2),
                ),
                const FlutterLogo(size: 250),
              ],
531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554
            ),
          ),
        ),
      );

      final RenderBox textBox1 = tester.renderObject(find.byKey(key1));
      final RenderBox textBox2 = tester.renderObject(find.byKey(key2));
      final RenderBox rowBox = tester.renderObject(find.byType(Row));

      // The two Texts are baseline aligned, so some portion of them extends
      // both above and below the baseline. The first has a huge font size, so
      // it extends higher above the baseline than usual. The second has many
      // lines, but being aligned by the first line's baseline, they hang far
      // below the baseline. The FlutterLogo extends further than both Texts,
      // so the size of the parent row should contain the FlutterLogo as well.
      const double ahemBaselineLocation = 0.8; // https://web-platform-tests.org/writing-tests/ahem.html
      const double aboveBaseline1 = fontSize1 * ahemBaselineLocation;
      const double aboveBaseline2 = fontSize2 * ahemBaselineLocation;
      expect(rowBox.size.height, greaterThan(textBox1.size.height));
      expect(rowBox.size.height, greaterThan(textBox2.size.height));
      expect(rowBox.size.height, 250);
      expect(tester.getTopLeft(find.byKey(key1)).dy, 0);
      expect(
        tester.getTopLeft(find.byKey(key2)).dy,
555
        moreOrLessEquals(aboveBaseline1 - aboveBaseline2, epsilon: .001),
556 557
      );
    });
558 559
  });

560 561
  test('UnconstrainedBox toString', () {
    expect(
562
      const UnconstrainedBox(constrainedAxis: Axis.vertical).toString(),
563
      equals('UnconstrainedBox(alignment: Alignment.center, constrainedAxis: vertical)'),
564
    );
565

566 567
    expect(
      const UnconstrainedBox(constrainedAxis: Axis.horizontal, textDirection: TextDirection.rtl, alignment: Alignment.topRight).toString(),
568
      equals('UnconstrainedBox(alignment: Alignment.topRight, constrainedAxis: horizontal, textDirection: rtl)'),
569 570
    );
  });
571

572 573
  testWidgets('UnconstrainedBox can set and update clipBehavior', (WidgetTester tester) async {
    await tester.pumpWidget(const UnconstrainedBox());
574
    final RenderConstraintsTransformBox renderObject = tester.allRenderObjects.whereType<RenderConstraintsTransformBox>().first;
575
    expect(renderObject.clipBehavior, equals(Clip.none));
576 577 578 579 580

    await tester.pumpWidget(const UnconstrainedBox(clipBehavior: Clip.antiAlias));
    expect(renderObject.clipBehavior, equals(Clip.antiAlias));
  });

581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629
  testWidgets('UnconstrainedBox warns only when clipBehavior is Clip.none', (WidgetTester tester) async {
    for (final Clip? clip in <Clip?>[null, ...Clip.values]) {
      // Clear any render objects that were there before so that we can see more
      // than one error. Otherwise, it just throws the first one and skips the
      // rest, since the render objects haven't changed.
      await tester.pumpWidget(const SizedBox());
      await tester.pumpWidget(
        Center(
          child: ConstrainedBox(
            constraints: const BoxConstraints(maxHeight: 200, maxWidth: 200),
            child: clip == null
              ? const UnconstrainedBox(child: SizedBox(width: 400, height: 400))
              : UnconstrainedBox(
                clipBehavior: clip,
                child: const SizedBox(width: 400, height: 400),
              ),
          ),
        ),
      );

      final RenderConstraintsTransformBox renderObject = tester.allRenderObjects.whereType<RenderConstraintsTransformBox>().first;

      // Defaults to Clip.none
      expect(renderObject.clipBehavior, equals(clip ?? Clip.none), reason: 'for clip = $clip');

      switch(clip) {
        case null:
        case Clip.none:
          // the UnconstrainedBox overflows.
          final dynamic exception = tester.takeException();
          expect(exception, isFlutterError, reason: 'for clip = $clip');
          // ignore: avoid_dynamic_calls
          expect(exception.diagnostics.first.level, DiagnosticLevel.summary, reason: 'for clip = $clip');
          expect(
            // ignore: avoid_dynamic_calls
            exception.diagnostics.first.toString(),
            startsWith('A RenderConstraintsTransformBox overflowed'),
            reason: 'for clip = $clip',
          );
          break;
        case Clip.hardEdge:
        case Clip.antiAlias:
        case Clip.antiAliasWithSaveLayer:
          expect(tester.takeException(), isNull, reason: 'for clip = $clip');
          break;
      }
    }
  });

630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648
  group('ConstraintsTransformBox', () {
    test('toString', () {
      expect(
        const ConstraintsTransformBox(
          constraintsTransform: ConstraintsTransformBox.unconstrained,
        ).toString(),
        equals('ConstraintsTransformBox(alignment: Alignment.center, constraints transform: unconstrained)'),
      );
      expect(
        const ConstraintsTransformBox(
          textDirection: TextDirection.rtl,
          alignment: Alignment.topRight,
          constraintsTransform: ConstraintsTransformBox.widthUnconstrained,
        ).toString(),
        equals('ConstraintsTransformBox(alignment: Alignment.topRight, textDirection: rtl, constraints transform: width constraints removed)'),
      );
    });
  });

649
  group('ColoredBox', () {
650 651
    late _MockCanvas mockCanvas;
    late _MockPaintingContext mockContext;
652 653 654 655
    const Color colorToPaint = Color(0xFFABCDEF);

    setUp(() {
      mockContext = _MockPaintingContext();
656
      mockCanvas = mockContext.canvas;
657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673
    });

    testWidgets('ColoredBox - no size, no child', (WidgetTester tester) async {
      await tester.pumpWidget(Flex(
        direction: Axis.horizontal,
        textDirection: TextDirection.ltr,
        children: const <Widget>[
          SizedBox.shrink(
            child: ColoredBox(color: colorToPaint),
          ),
        ],
      ));
      expect(find.byType(ColoredBox), findsOneWidget);
      final RenderObject renderColoredBox = tester.renderObject(find.byType(ColoredBox));

      renderColoredBox.paint(mockContext, Offset.zero);

674 675 676
      expect(mockCanvas.rects, isEmpty);
      expect(mockCanvas.paints, isEmpty);
      expect(mockContext.children, isEmpty);
677
      expect(mockContext.offsets, isEmpty);
678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697
    });

    testWidgets('ColoredBox - no size, child', (WidgetTester tester) async {
      const ValueKey<int> key = ValueKey<int>(0);
      const Widget child = SizedBox.expand(key: key);
      await tester.pumpWidget(Flex(
        direction: Axis.horizontal,
        textDirection: TextDirection.ltr,
        children: const <Widget>[
          SizedBox.shrink(
            child: ColoredBox(color: colorToPaint, child: child),
          ),
        ],
      ));
      expect(find.byType(ColoredBox), findsOneWidget);
      final RenderObject renderColoredBox = tester.renderObject(find.byType(ColoredBox));
      final RenderObject renderSizedBox = tester.renderObject(find.byKey(key));

      renderColoredBox.paint(mockContext, Offset.zero);

698 699 700
      expect(mockCanvas.rects, isEmpty);
      expect(mockCanvas.paints, isEmpty);
      expect(mockContext.children.single, renderSizedBox);
701
      expect(mockContext.offsets.single, Offset.zero);
702 703 704 705 706 707 708 709 710
    });

    testWidgets('ColoredBox - size, no child', (WidgetTester tester) async {
      await tester.pumpWidget(const ColoredBox(color: colorToPaint));
      expect(find.byType(ColoredBox), findsOneWidget);
      final RenderObject renderColoredBox = tester.renderObject(find.byType(ColoredBox));

      renderColoredBox.paint(mockContext, Offset.zero);

711 712 713
      expect(mockCanvas.rects.single, const Rect.fromLTWH(0, 0, 800, 600));
      expect(mockCanvas.paints.single.color, colorToPaint);
      expect(mockContext.children, isEmpty);
714
      expect(mockContext.offsets, isEmpty);
715 716 717 718 719 720 721 722 723 724 725 726
    });

    testWidgets('ColoredBox - size, child', (WidgetTester tester) async {
      const ValueKey<int> key = ValueKey<int>(0);
      const Widget child = SizedBox.expand(key: key);
      await tester.pumpWidget(const ColoredBox(color: colorToPaint, child: child));
      expect(find.byType(ColoredBox), findsOneWidget);
      final RenderObject renderColoredBox = tester.renderObject(find.byType(ColoredBox));
      final RenderObject renderSizedBox = tester.renderObject(find.byKey(key));

      renderColoredBox.paint(mockContext, Offset.zero);

727 728 729
      expect(mockCanvas.rects.single, const Rect.fromLTWH(0, 0, 800, 600));
      expect(mockCanvas.paints.single.color, colorToPaint);
      expect(mockContext.children.single, renderSizedBox);
730
      expect(mockContext.offsets.single, Offset.zero);
Dan Field's avatar
Dan Field committed
731 732
    });

733
    testWidgets('ColoredBox - debugFillProperties', (WidgetTester tester) async {
Dan Field's avatar
Dan Field committed
734 735 736 737 738 739
      const ColoredBox box = ColoredBox(color: colorToPaint);
      final DiagnosticPropertiesBuilder properties = DiagnosticPropertiesBuilder();
      box.debugFillProperties(properties);

      expect(properties.properties.first.value, colorToPaint);
    });
740
  });
741 742 743 744 745
  testWidgets('Inconsequential golden test', (WidgetTester tester) async {
    // The test validates the Flutter Gold integration. Any changes to the
    // golden file can be approved at any time.
    await tester.pumpWidget(RepaintBoundary(
      child: Container(
746
        color: const Color(0xABCDABCD),
747 748 749 750 751 752 753 754
      ),
    ));

    await tester.pumpAndSettle();
    await expectLater(
      find.byType(RepaintBoundary),
      matchesGoldenFile('inconsequential_golden_file.png'),
    );
755
  });
756 757 758

  testWidgets('IgnorePointer ignores pointers', (WidgetTester tester) async {
    final List<String> logs = <String>[];
759
    Widget target({required bool ignoring}) => Align(
760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791
      alignment: Alignment.topLeft,
      child: Directionality(
        textDirection: TextDirection.ltr,
        child: SizedBox(
          width: 100,
          height: 100,
          child: Listener(
            onPointerDown: (_) { logs.add('down1'); },
            child: MouseRegion(
              onEnter: (_) { logs.add('enter1'); },
              onExit: (_) { logs.add('exit1'); },
              cursor: SystemMouseCursors.forbidden,
              child: Stack(
                children: <Widget>[
                  Listener(
                    onPointerDown: (_) { logs.add('down2'); },
                    child: MouseRegion(
                      cursor: SystemMouseCursors.click,
                      onEnter: (_) { logs.add('enter2'); },
                      onExit: (_) { logs.add('exit2'); },
                    ),
                  ),
                  IgnorePointer(
                    ignoring: ignoring,
                    child: Listener(
                      onPointerDown: (_) { logs.add('down3'); },
                      child: MouseRegion(
                        cursor: SystemMouseCursors.text,
                        onEnter: (_) { logs.add('enter3'); },
                        onExit: (_) { logs.add('exit3'); },
                      ),
                    ),
792
                  ),
793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835
                ],
              ),
            ),
          ),
        ),
      ),
    );

    final TestGesture gesture = await tester.createGesture(pointer: 1, kind: PointerDeviceKind.mouse);
    await gesture.addPointer(location: const Offset(200, 200));

    await tester.pumpWidget(target(ignoring: true));
    expect(logs, isEmpty);

    await gesture.moveTo(const Offset(50, 50));
    expect(logs, <String>['enter1', 'enter2']);
    logs.clear();

    await gesture.down(const Offset(50, 50));
    expect(logs, <String>['down2', 'down1']);
    logs.clear();

    await gesture.up();
    expect(logs, isEmpty);

    await tester.pumpWidget(target(ignoring: false));
    expect(logs, <String>['exit2', 'enter3']);
    logs.clear();

    await gesture.down(const Offset(50, 50));
    expect(logs, <String>['down3', 'down1']);
    logs.clear();

    await gesture.up();
    expect(logs, isEmpty);

    await tester.pumpWidget(target(ignoring: true));
    expect(logs, <String>['exit3', 'enter2']);
    logs.clear();
  });

  testWidgets('AbsorbPointer absorbs pointers', (WidgetTester tester) async {
    final List<String> logs = <String>[];
836
    Widget target({required bool absorbing}) => Align(
837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868
      alignment: Alignment.topLeft,
      child: Directionality(
        textDirection: TextDirection.ltr,
        child: SizedBox(
          width: 100,
          height: 100,
          child: Listener(
            onPointerDown: (_) { logs.add('down1'); },
            child: MouseRegion(
              onEnter: (_) { logs.add('enter1'); },
              onExit: (_) { logs.add('exit1'); },
              cursor: SystemMouseCursors.forbidden,
              child: Stack(
                children: <Widget>[
                  Listener(
                    onPointerDown: (_) { logs.add('down2'); },
                    child: MouseRegion(
                      cursor: SystemMouseCursors.click,
                      onEnter: (_) { logs.add('enter2'); },
                      onExit: (_) { logs.add('exit2'); },
                    ),
                  ),
                  AbsorbPointer(
                    absorbing: absorbing,
                    child: Listener(
                      onPointerDown: (_) { logs.add('down3'); },
                      child: MouseRegion(
                        cursor: SystemMouseCursors.text,
                        onEnter: (_) { logs.add('enter3'); },
                        onExit: (_) { logs.add('exit3'); },
                      ),
                    ),
869
                  ),
870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909
                ],
              ),
            ),
          ),
        ),
      ),
    );

    final TestGesture gesture = await tester.createGesture(pointer: 1, kind: PointerDeviceKind.mouse);
    await gesture.addPointer(location: const Offset(200, 200));

    await tester.pumpWidget(target(absorbing: true));
    expect(logs, isEmpty);

    await gesture.moveTo(const Offset(50, 50));
    expect(logs, <String>['enter1']);
    logs.clear();

    await gesture.down(const Offset(50, 50));
    expect(logs, <String>['down1']);
    logs.clear();

    await gesture.up();
    expect(logs, isEmpty);

    await tester.pumpWidget(target(absorbing: false));
    expect(logs, <String>['enter3']);
    logs.clear();

    await gesture.down(const Offset(50, 50));
    expect(logs, <String>['down3', 'down1']);
    logs.clear();

    await gesture.up();
    expect(logs, isEmpty);

    await tester.pumpWidget(target(absorbing: true));
    expect(logs, <String>['exit3']);
    logs.clear();
  });
910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940

  testWidgets('Wrap implements debugFillProperties', (WidgetTester tester) async {
    final DiagnosticPropertiesBuilder builder = DiagnosticPropertiesBuilder();
    Wrap(
      spacing: 8.0, // gap between adjacent Text widget
      runSpacing: 4.0, // gap between lines
      textDirection: TextDirection.ltr,
      verticalDirection: VerticalDirection.up,
      children: const <Widget>[
        Text('Hamilton'),
        Text('Lafayette'),
        Text('Mulligan'),
      ],
    ).debugFillProperties(builder);

    final List<String> description = builder.properties
      .where((DiagnosticsNode node) => !node.isFiltered(DiagnosticLevel.info))
      .map((DiagnosticsNode node) => node.toString())
      .toList();

    expect(description, unorderedMatches(<dynamic>[
      contains('direction: horizontal'),
      contains('alignment: start'),
      contains('spacing: 8.0'),
      contains('runAlignment: start'),
      contains('runSpacing: 4.0'),
      contains('crossAxisAlignment: start'),
      contains('textDirection: ltr'),
      contains('verticalDirection: up'),
    ]));
  });
941 942
}

943
HitsRenderBox hits(RenderBox renderBox) => HitsRenderBox(renderBox);
944 945 946 947 948 949 950 951 952 953 954 955

class HitsRenderBox extends Matcher {
  const HitsRenderBox(this.renderBox);

  final RenderBox renderBox;

  @override
  Description describe(Description description) =>
    description.add('hit test result contains ').addDescriptionOf(renderBox);

  @override
  bool matches(dynamic item, Map<dynamic, dynamic> matchState) {
956
    final HitTestResult hitTestResult = item as HitTestResult;
957
    return hitTestResult.path.where(
958
      (HitTestEntry entry) => entry.target == renderBox,
959 960 961 962
    ).isNotEmpty;
  }
}

963
DoesNotHitRenderBox doesNotHit(RenderBox renderBox) => DoesNotHitRenderBox(renderBox);
964 965 966 967 968 969 970 971

class DoesNotHitRenderBox extends Matcher {
  const DoesNotHitRenderBox(this.renderBox);

  final RenderBox renderBox;

  @override
  Description describe(Description description) =>
972
    description.add("hit test result doesn't contain ").addDescriptionOf(renderBox);
973 974 975

  @override
  bool matches(dynamic item, Map<dynamic, dynamic> matchState) {
976
    final HitTestResult hitTestResult = item as HitTestResult;
977
    return hitTestResult.path.where(
978
      (HitTestEntry entry) => entry.target == renderBox,
979 980 981
    ).isEmpty;
  }
}
982

983 984
class _MockPaintingContext extends Fake implements PaintingContext {
  final List<RenderObject> children = <RenderObject>[];
985
  final List<Offset> offsets = <Offset>[];
986 987 988 989 990 991 992

  @override
  final _MockCanvas canvas = _MockCanvas();

  @override
  void paintChild(RenderObject child, Offset offset) {
    children.add(child);
993
    offsets.add(offset);
994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007
  }
}

class _MockCanvas extends Fake implements Canvas {
  final List<Rect> rects = <Rect>[];
  final List<Paint> paints = <Paint>[];
  bool didPaint = false;

  @override
  void drawRect(Rect rect, Paint paint) {
    rects.add(rect);
    paints.add(paint);
  }
}