Migrated test lock 217 to Dart 2.0.

tests/lib_strong/math/rectangle_test.dart

-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'dart:math';
-import 'package:expect/expect.dart';
-
-main() {
-  testConstruction();
-  testIntersection();
-  testIntersects();
-  testBoundingBox();
-  testContainsRectangle();
-  testContainsPoint();
-  testHashCode();
-  testEdgeCases();
-  testEquality();
-  testNegativeLengths();
-  testNaNLeft();
-  testNaNTop();
-  testNaNWidth();
-  testNaNHeight();
-}
-
-Rectangle createRectangle(List<num> a) {
-  return a != null ? new Rectangle(a[0], a[1], a[2] - a[0], a[3] - a[1]) : null;
-}
-
-testConstruction() {
-  var r0 = new Rectangle(10, 20, 30, 40);
-  Expect.equals('Rectangle (10, 20) 30 x 40', r0.toString());
-  Expect.equals(40, r0.right);
-  Expect.equals(60, r0.bottom);
-
-  var r1 = new Rectangle.fromPoints(r0.topLeft, r0.bottomRight);
-  Expect.equals(r0, r1);
-
-  var r2 = new Rectangle.fromPoints(r0.bottomRight, r0.topLeft);
-  Expect.equals(r0, r2);
-}
-
-testIntersection() {
-  var tests = [
-    [
-      [10, 10, 20, 20],
-      [15, 15, 25, 25],
-      [15, 15, 20, 20]
-    ],
-    [
-      [10, 10, 20, 20],
-      [20, 0, 30, 10],
-      [20, 10, 20, 10]
-    ],
-    [
-      [0, 0, 1, 1],
-      [10, 11, 12, 13],
-      null
-    ],
-    [
-      [11, 12, 98, 99],
-      [22, 23, 34, 35],
-      [22, 23, 34, 35]
-    ]
-  ];
-
-  for (var test in tests) {
-    var r0 = createRectangle(test[0]);
-    var r1 = createRectangle(test[1]);
-    var expected = createRectangle(test[2]);
-
-    Expect.equals(expected, r0.intersection(r1));
-    Expect.equals(expected, r1.intersection(r0));
-  }
-}
-
-testIntersects() {
-  var r0 = new Rectangle(10, 10, 20, 20);
-  var r1 = new Rectangle(15, 15, 25, 25);
-  var r2 = new Rectangle(0, 0, 1, 1);
-
-  Expect.isTrue(r0.intersects(r1));
-  Expect.isTrue(r1.intersects(r0));
-
-  Expect.isFalse(r0.intersects(r2));
-  Expect.isFalse(r2.intersects(r0));
-}
-
-testBoundingBox() {
-  var tests = [
-    [
-      [10, 10, 20, 20],
-      [15, 15, 25, 25],
-      [10, 10, 25, 25]
-    ],
-    [
-      [10, 10, 20, 20],
-      [20, 0, 30, 10],
-      [10, 0, 30, 20]
-    ],
-    [
-      [0, 0, 1, 1],
-      [10, 11, 12, 13],
-      [0, 0, 12, 13]
-    ],
-    [
-      [11, 12, 98, 99],
-      [22, 23, 34, 35],
-      [11, 12, 98, 99]
-    ]
-  ];
-
-  for (var test in tests) {
-    var r0 = createRectangle(test[0]);
-    var r1 = createRectangle(test[1]);
-    var expected = createRectangle(test[2]);
-
-    Expect.equals(expected, r0.boundingBox(r1));
-    Expect.equals(expected, r1.boundingBox(r0));
-  }
-}
-
-testContainsRectangle() {
-  var r = new Rectangle(-10, 0, 20, 10);
-  Expect.isTrue(r.containsRectangle(r));
-
-  Expect.isFalse(r.containsRectangle(
-      new Rectangle(double.NAN, double.NAN, double.NAN, double.NAN)));
-
-  var r2 = new Rectangle(0, 2, 5, 5);
-  Expect.isTrue(r.containsRectangle(r2));
-  Expect.isFalse(r2.containsRectangle(r));
-
-  r2 = new Rectangle(-11, 2, 5, 5);
-  Expect.isFalse(r.containsRectangle(r2));
-  r2 = new Rectangle(0, 2, 15, 5);
-  Expect.isFalse(r.containsRectangle(r2));
-  r2 = new Rectangle(0, 2, 5, 10);
-  Expect.isFalse(r.containsRectangle(r2));
-  r2 = new Rectangle(0, 0, 5, 10);
-  Expect.isTrue(r.containsRectangle(r2));
-}
-
-testContainsPoint() {
-  var r = new Rectangle(20, 40, 60, 80);
-
-  // Test middle.
-  Expect.isTrue(r.containsPoint(new Point(50, 80)));
-
-  // Test edges.
-  Expect.isTrue(r.containsPoint(new Point(20, 40)));
-  Expect.isTrue(r.containsPoint(new Point(50, 40)));
-  Expect.isTrue(r.containsPoint(new Point(80, 40)));
-  Expect.isTrue(r.containsPoint(new Point(80, 80)));
-  Expect.isTrue(r.containsPoint(new Point(80, 120)));
-  Expect.isTrue(r.containsPoint(new Point(50, 120)));
-  Expect.isTrue(r.containsPoint(new Point(20, 120)));
-  Expect.isTrue(r.containsPoint(new Point(20, 80)));
-
-  // Test outside.
-  Expect.isFalse(r.containsPoint(new Point(0, 0)));
-  Expect.isFalse(r.containsPoint(new Point(50, 0)));
-  Expect.isFalse(r.containsPoint(new Point(100, 0)));
-  Expect.isFalse(r.containsPoint(new Point(100, 80)));
-  Expect.isFalse(r.containsPoint(new Point(100, 160)));
-  Expect.isFalse(r.containsPoint(new Point(50, 160)));
-  Expect.isFalse(r.containsPoint(new Point(0, 160)));
-  Expect.isFalse(r.containsPoint(new Point(0, 80)));
-}
-
-testHashCode() {
-  var a = new Rectangle(0, 1, 2, 3);
-  var b = new Rectangle(0, 1, 2, 3);
-  Expect.equals(b.hashCode, a.hashCode);
-
-  var c = new Rectangle(1, 0, 2, 3);
-  Expect.isFalse(a.hashCode == c.hashCode);
-}
-
-testEdgeCases() {
-  edgeTest(double a, double l) {
-    var r = new Rectangle(a, a, l, l);
-    Expect.equals(r, r.boundingBox(r));
-    Expect.equals(r, r.intersection(r));
-  }
-
-  var bignum1 = 0x20000000000000 + 0.0;
-  var bignum2 = 0x20000000000002 + 0.0;
-  var bignum3 = 0x20000000000004 + 0.0;
-  edgeTest(1.0, bignum1);
-  edgeTest(1.0, bignum2);
-  edgeTest(1.0, bignum3);
-  edgeTest(bignum1, 1.0);
-  edgeTest(bignum2, 1.0);
-  edgeTest(bignum3, 1.0);
-}
-
-testEquality() {
-  var bignum = 0x80000000000008 + 0.0;
-  var r1 = new Rectangle(bignum, bignum, 1.0, 1.0);
-  var r2 = new Rectangle(bignum, bignum, 2.0, 2.0);
-  Expect.equals(r2, r1);
-  Expect.equals(r2.hashCode, r1.hashCode);
-  Expect.equals(r2.right, r1.right);
-  Expect.equals(r2.bottom, r1.bottom);
-  Expect.equals(1.0, r1.width);
-  Expect.equals(2.0, r2.width);
-}
-
-testNegativeLengths() {
-  // Constructor allows negative lengths, but clamps them to zero.
-  Expect.equals(new Rectangle(4, 4, 0, 0), new Rectangle(4, 4, -2, -2));
-  Expect.equals(new Rectangle(4, 4, 0, 0), new MutableRectangle(4, 4, -2, -2));
-
-  // Setters clamp negative lengths to zero.
-  var mutable = new MutableRectangle(0, 0, 1, 1);
-  mutable.width = -1;
-  mutable.height = -1;
-  Expect.equals(new Rectangle(0, 0, 0, 0), mutable);
-
-  // Test that doubles are clamped to double zero.
-  var rectangle = new Rectangle(1.5, 1.5, -2.5, -2.5);
-  Expect.isTrue(identical(rectangle.width, 0.0));
-  Expect.isTrue(identical(rectangle.height, 0.0));
-}
-
-testNaNLeft() {
-  var rectangles = [
-    const Rectangle(double.NAN, 1, 2, 3),
-    new MutableRectangle(double.NAN, 1, 2, 3),
-    new Rectangle.fromPoints(new Point(double.NAN, 1), new Point(2, 4)),
-    new MutableRectangle.fromPoints(new Point(double.NAN, 1), new Point(2, 4)),
-  ];
-  for (var r in rectangles) {
-    Expect.isFalse(r.containsPoint(new Point(0, 1)));
-    Expect.isFalse(r.containsRectangle(new Rectangle(0, 1, 2, 3)));
-    Expect.isFalse(r.intersects(new Rectangle(0, 1, 2, 3)));
-    Expect.isTrue(r.left.isNaN);
-    Expect.isTrue(r.right.isNaN);
-  }
-}
-
-testNaNTop() {
-  var rectangles = [
-    const Rectangle(0, double.NAN, 2, 3),
-    new MutableRectangle(0, double.NAN, 2, 3),
-    new Rectangle.fromPoints(new Point(0, double.NAN), new Point(2, 4)),
-    new MutableRectangle.fromPoints(new Point(0, double.NAN), new Point(2, 4)),
-  ];
-  for (var r in rectangles) {
-    Expect.isFalse(r.containsPoint(new Point(0, 1)));
-    Expect.isFalse(r.containsRectangle(new Rectangle(0, 1, 2, 3)));
-    Expect.isFalse(r.intersects(new Rectangle(0, 1, 2, 3)));
-    Expect.isTrue(r.top.isNaN);
-    Expect.isTrue(r.bottom.isNaN);
-  }
-}
-
-testNaNWidth() {
-  var rectangles = [
-    const Rectangle(0, 1, double.NAN, 3),
-    new MutableRectangle(0, 1, double.NAN, 3),
-    new Rectangle.fromPoints(new Point(0, 1), new Point(double.NAN, 4)),
-    new MutableRectangle.fromPoints(new Point(0, 1), new Point(double.NAN, 4)),
-  ];
-  for (var r in rectangles) {
-    Expect.isFalse(r.containsPoint(new Point(0, 1)));
-    Expect.isFalse(r.containsRectangle(new Rectangle(0, 1, 2, 3)));
-    Expect.isFalse(r.intersects(new Rectangle(0, 1, 2, 3)));
-    Expect.isTrue(r.right.isNaN);
-    Expect.isTrue(r.width.isNaN);
-  }
-}
-
-testNaNHeight() {
-  var rectangles = [
-    const Rectangle(0, 1, 2, double.NAN),
-    new MutableRectangle(0, 1, 2, double.NAN),
-    new Rectangle.fromPoints(new Point(0, 1), new Point(2, double.NAN)),
-    new MutableRectangle.fromPoints(new Point(0, 1), new Point(2, double.NAN)),
-  ];
-  for (var r in rectangles) {
-    Expect.isFalse(r.containsPoint(new Point(0, 1)));
-    Expect.isFalse(r.containsRectangle(new Rectangle(0, 1, 2, 3)));
-    Expect.isFalse(r.intersects(new Rectangle(0, 1, 2, 3)));
-    Expect.isTrue(r.bottom.isNaN);
-    Expect.isTrue(r.height.isNaN);
-  }
-}