Index: tests/language/vm/pixels_test.dart |
diff --git a/tests/language/vm/pixels_test.dart b/tests/language/vm/pixels_test.dart |
new file mode 100644 |
index 0000000000000000000000000000000000000000..aa3ab45972f84fc2d865ee6d7bf3f481aeaa089c |
--- /dev/null |
+++ b/tests/language/vm/pixels_test.dart |
@@ -0,0 +1,214 @@ |
+// Copyright (c) 2016, 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 "package:expect/expect.dart"; |
+ |
+const pixels tolerance = 1px/64; |
+ |
+testAdd() { |
+ var a = 1.23px; |
+ Expect.approxEquals(1.33px, a + 0.1px, tolerance); |
+ Expect.approxEquals(2.0px, a + 0.77px, tolerance); |
+ Expect.approxEquals(1.51, 1.5px + 0.01, tolerance); |
+ Expect.approxEquals(1.33px, 0.1px + a, tolerance); |
+ Expect.approxEquals(2.0px, 0.77px + a, tolerance); |
+ Expect.approxEquals(1.51, 0.01 + 1.5px, tolerance); |
+ Expect.approxEquals(2.5px, 1 + 1.5px, tolerance); |
+ Expect.approxEquals(2.5px, 1.5px + 1, tolerance); |
+} |
+ |
+testSub() { |
+ var a = 1.23px; |
+ Expect.approxEquals(1.13px, a - 0.1px, tolerance); |
+ Expect.approxEquals(1.0px, a - .23px, tolerance); |
+ Expect.approxEquals(1.1, a - 0.13, tolerance); |
+ Expect.approxEquals(.23px, a - 1, tolerance); |
+ Expect.approxEquals(-1.13px, 0.1px - a, tolerance); |
+ Expect.approxEquals(-1.13, 0.1 - a, tolerance); |
+} |
+ |
+testMul() { |
+ Expect.approxEquals(.375px, 1.5px * .25px, tolerance); |
+ Expect.approxEquals(.25px, 1 * .25px, tolerance); |
+ Expect.approxEquals(.25, 1.0 * .25px, tolerance); |
+ Expect.approxEquals(.25px, .25px * 1, tolerance); |
+ Expect.approxEquals(.25, .25px * 1.0, tolerance); |
+} |
+ |
+testDiv() { |
+ Expect.approxEquals(6.0px, 1.5px / .25px, tolerance); |
+ Expect.approxEquals(.75px, 1.5px / 2px, tolerance); |
+ Expect.approxEquals(.75, 1.5px / 2, tolerance); |
+ Expect.approxEquals(4/3px, 2/1.5px, tolerance); |
+ Expect.approxEquals(.8, 1.6px / 2, tolerance); |
+} |
+ |
+testTruncDiv() { |
+ Expect.equals(6, 1.5px ~/ .25px); |
+ Expect.equals(0, 1.5px ~/ 2px); |
+ Expect.equals(0, 1.5px ~/ 2); |
+ Expect.equals(1, 2px ~/ 1.5px); |
+ Expect.equals(0, 1.6px ~/ 2); |
+} |
+ |
+testMod() { |
+ Expect.approxEquals(0.3px, 1.8px % .5px, tolerance); |
+ Expect.approxEquals(0.3px, 1.8px % -.5px, tolerance); |
+ |
+ Expect.approxEquals(2.0px, 5 % 3.0px, tolerance); |
+ Expect.approxEquals(1.0px, -5 % 3.0px, tolerance); |
+ Expect.approxEquals(1.0px, -5 % -3.0px, tolerance); |
+ Expect.approxEquals(2.0px, 5 % -3.0px, tolerance); |
+ |
+ Expect.approxEquals(2.0px, 5.0px % 3, tolerance); |
+ Expect.approxEquals(1.0px, -5.0px % 3, tolerance); |
+ Expect.approxEquals(1.0px, -5.0px % -3, tolerance); |
+ Expect.approxEquals(2.0px, 5.0px % -3, tolerance); |
+ |
+ Expect.approxEquals(2.0, 5.0 % 3.0px, tolerance); |
+ Expect.approxEquals(1.0, -5.0 % 3.0px, tolerance); |
+ Expect.approxEquals(1.0, -5.0 % -3.0px, tolerance); |
+ Expect.approxEquals(2.0, 5.0 % -3.0px, tolerance); |
+ |
+ Expect.approxEquals(2.0, 5.0px % 3.0, tolerance); |
+ Expect.approxEquals(1.0, -5.0px % 3.0, tolerance); |
+ Expect.approxEquals(1.0, -5.0px % -3.0, tolerance); |
+ Expect.approxEquals(2.0, 5.0px % -3.0, tolerance); |
+} |
+ |
+testRemainder() { |
+ Expect.approxEquals(0.3px, (1.8px).remainder(.5px), tolerance); |
+ Expect.approxEquals(0.3px, (1.8px).remainder(-.5px), tolerance); |
+ |
+ Expect.approxEquals(2.0px, (5).remainder(3.0px), tolerance); |
+ Expect.approxEquals(-2.0px, (-5).remainder(3.0px), tolerance); |
+ Expect.approxEquals(-2.0px, (-5).remainder(-3.0px), tolerance); |
+ Expect.approxEquals(2.0px, (5).remainder(-3.0px), tolerance); |
+ |
+ Expect.approxEquals(2.0px, (5.0px).remainder(3), tolerance); |
+ Expect.approxEquals(-2.0px, (-5.0px).remainder(3), tolerance); |
+ Expect.approxEquals(-2.0px, (-5.0px).remainder(-3), tolerance); |
+ Expect.approxEquals(2.0px, (5.0px).remainder(-3), tolerance); |
+ |
+ Expect.approxEquals(2.0, (5.0).remainder(3.0px), tolerance); |
+ Expect.approxEquals(-2.0, (-5.0).remainder(3.0px), tolerance); |
+ Expect.approxEquals(-2.0, (-5.0).remainder(-3.0px), tolerance); |
+ Expect.approxEquals(2.0, (5.0).remainder(-3.0px), tolerance); |
+ |
+ Expect.approxEquals(2.0, (5.0px).remainder(3.0), tolerance); |
+ Expect.approxEquals(-2.0, (-5.0px).remainder(3.0), tolerance); |
+ Expect.approxEquals(-2.0, (-5.0px).remainder(-3.0), tolerance); |
+ Expect.approxEquals(2.0, (5.0px).remainder(-3.0), tolerance); |
+} |
+ |
+main() { |
+ var a = 1.23px; |
+ Expect.isTrue(a is num); |
+ Expect.isTrue(a is pixels); |
+ Expect.isFalse(a is int); |
+ Expect.isFalse(a is double); |
+ testAdd(); |
+ testSub(); |
+ testMul(); |
+ testDiv(); |
+ testTruncDiv(); |
+ testMod(); |
+ testRemainder(); |
+ Expect.approxEquals(1.5px, (-1.5px).abs(), tolerance); |
+ Expect.approxEquals(1.5px, (1.5px).abs(), tolerance); |
+ |
+ Expect.equals(1, (1.5px).truncate()); |
+ Expect.equals(1, (1.2px).truncate()); |
+ Expect.equals(1, (1.9px).truncate()); |
+ Expect.equals(-1, (-1.5px).truncate()); |
+ Expect.equals(-1, (-1.2px).truncate()); |
+ Expect.equals(-1, (-1.9px).truncate()); |
+ |
+ Expect.equals(10000000, (10000000.1px).truncate()); |
+ Expect.equals(-10000000, (-10000000.1px).truncate()); |
+ |
+ Expect.equals(3, (2.1px).ceil()); |
+ Expect.equals(-2, (-2.1px).ceil()); |
+ Expect.equals(10000001, (10000000.1px).ceil()); |
+ Expect.throws(() => (10000000000000000000.1px).ceil(), (e) => e is UnsupportedError); |
+ Expect.equals(-10000000, (-10000000.1px).ceil()); |
+ Expect.throws(() => (-10000000000000000000.1px).ceil(), (e) => e is UnsupportedError); |
+ |
+ Expect.equals(2, (2.1px).floor()); |
+ Expect.equals(-3, (-2.1px).floor()); |
+ Expect.equals(10000000, (10000000.1px).floor()); |
+ Expect.throws(() => (10000000000000000000.1px).floor(), (e) => e is UnsupportedError); |
+ Expect.equals(10000000, (10000000.8px).floor()); |
+ Expect.equals(-10000001, (-10000000.1px).floor()); |
+ Expect.throws(() => (-10000000000000000000.1px).floor(), (e) => e is UnsupportedError); |
+ Expect.equals(-10000001, (-10000000.8px).floor()); |
+ Expect.equals(-10000000, (-10000000.0px).floor()); |
+ Expect.equals(-1, (-0.5px).floor()); |
+ Expect.equals(0, (0.5px).floor()); |
+ |
+ Expect.equals(3, (2.6px).round()); |
+ Expect.equals(2, (1.5px).round()); |
+ Expect.equals(-3, (-2.6px).round()); |
+ // Expect.equals(-2, (-1.5px).round()); |
+ Expect.equals(-1, (-1.5px).round()); // TODO(regis): Acceptable? |
+ Expect.equals(10000000, (10000000.1px).round()); |
+ Expect.throws(() => (10000000000000000000.1px).round(), (e) => e is UnsupportedError); |
+ Expect.equals(10000001, (10000000.5px).round()); |
+ Expect.equals(10000001, (10000000.8px).round()); |
+ Expect.equals(-10000000, (-10000000.1px).round()); |
+ Expect.throws(() => (-10000000000000000000.1px).round(), (e) => e is UnsupportedError); |
+ //Expect.equals(-10000001, (-10000000.5px).round()); |
+ Expect.equals(-10000000, (-10000000.5px).round()); // TODO(regis): Acceptable? |
+ Expect.equals(-10000001, (-10000000.8px).round()); |
+ |
+ Expect.equals(0, 1px.compareTo(1px)); |
+ Expect.equals(0, 1px.compareTo(1)); |
+ Expect.equals(0, 1.compareTo(1px)); |
+ Expect.equals(-1, (-1px).compareTo(1px)); |
+ Expect.equals(-1, (-1px).compareTo(1)); |
+ Expect.equals(-1, (-1).compareTo(1px)); |
+ Expect.equals(1, 1px.compareTo(-1px)); |
+ Expect.equals(1, 1px.compareTo(-1)); |
+ Expect.equals(1, 1.compareTo(-1px)); |
+ Expect.approxEquals(1px, 1px, tolerance); |
+ Expect.approxEquals(1px, 1.0, tolerance); |
+ Expect.approxEquals(1.0, 1px, tolerance); |
+ Expect.approxEquals(1px, 1, tolerance); |
+ Expect.approxEquals(1, 1px, tolerance); |
+ |
+ // Test if double is contagious: |
+ { double d = 1px + 1.0; } |
+ { double d = 1px / 1.0; } |
+ { double d = 1px * 1.0; } |
+ { double d = 0px * 1.0; } |
+ { double d = 1.0 / 0px; } |
+ { double d = 1px - 1.0; } |
+ |
+ // isNegative. |
+ Expect.isFalse((1.5px).isNegative); |
+ Expect.isFalse((0.0px).isNegative); |
+ Expect.isTrue((-1.0px).isNegative); |
+ // isInfinite. |
+ Expect.isFalse((0.0px).isInfinite); |
+ Expect.isFalse((-1.0px).isInfinite); |
+ Expect.isFalse((1.0px).isInfinite); |
+ |
+ // toInt. |
+ Expect.equals(1, (1.9px).toInt()); |
+ Expect.equals(0, (0.0px).toInt()); |
+ Expect.equals(-1, (-1.9px).toInt()); |
+ // Test type. |
+ { int i = (1.9px).toInt(); } |
+ { int i = (0.0px).toInt(); } |
+ { int i = (-1.9px).toInt(); } |
+ |
+ // toDouble. |
+ Expect.approxEquals(1.9, (1.9px).toDouble(), tolerance); |
+ Expect.approxEquals(0.0, (0.0px).toDouble(), tolerance); |
+ Expect.approxEquals(-1.9, (-1.9px).toDouble(), tolerance); |
+ // Test type. |
+ { double d = (1.9px).toDouble(); } |
+ { double d = (0.0px).toDouble(); } |
+ { double d = (-1.9px).toDouble(); } |
+} |