| Flutter Impeller |

size_unittests.cc
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1 // Copyright 2013 The Flutter Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "gtest/gtest.h"
6
7 #include "flutter/impeller/geometry/size.h"
8
9 namespace impeller {
10 namespace testing {
11
12 TEST(SizeTest, SizeIsEmpty) {
13 auto nan = std::numeric_limits<Scalar>::quiet_NaN();
14
15 // Non-empty
16 EXPECT_FALSE(Size(10.5, 7.2).IsEmpty());
17
18 // Empty both width and height both 0 or negative, in all combinations
19 EXPECT_TRUE(Size(0.0, 0.0).IsEmpty());
20 EXPECT_TRUE(Size(-1.0, -1.0).IsEmpty());
21 EXPECT_TRUE(Size(-1.0, 0.0).IsEmpty());
22 EXPECT_TRUE(Size(0.0, -1.0).IsEmpty());
23
24 // Empty for 0 or negative width or height (but not both at the same time)
25 EXPECT_TRUE(Size(10.5, 0.0).IsEmpty());
26 EXPECT_TRUE(Size(10.5, -1.0).IsEmpty());
27 EXPECT_TRUE(Size(0.0, 7.2).IsEmpty());
28 EXPECT_TRUE(Size(-1.0, 7.2).IsEmpty());
29
30 // Empty for NaN in width or height or both
31 EXPECT_TRUE(Size(10.5, nan).IsEmpty());
32 EXPECT_TRUE(Size(nan, 7.2).IsEmpty());
33 EXPECT_TRUE(Size(nan, nan).IsEmpty());
34 }
35
36 TEST(SizeTest, ISizeIsEmpty) {
37 // Non-empty
38 EXPECT_FALSE(ISize(10, 7).IsEmpty());
39
40 // Empty both width and height both 0 or negative, in all combinations
41 EXPECT_TRUE(ISize(0, 0).IsEmpty());
42 EXPECT_TRUE(ISize(-1, -1).IsEmpty());
43 EXPECT_TRUE(ISize(-1, 0).IsEmpty());
44 EXPECT_TRUE(ISize(0, -1).IsEmpty());
45
46 // Empty for 0 or negative width or height (but not both at the same time)
47 EXPECT_TRUE(ISize(10, 0).IsEmpty());
48 EXPECT_TRUE(ISize(10, -1).IsEmpty());
49 EXPECT_TRUE(ISize(0, 7).IsEmpty());
50 EXPECT_TRUE(ISize(-1, 7).IsEmpty());
51 }
52
53 TEST(SizeTest, IsSquare) {
54 EXPECT_TRUE(Size(20, 20).IsSquare());
55 EXPECT_FALSE(Size(20, 19).IsSquare());
56 EXPECT_FALSE(Size(19, 20).IsSquare());
57
58 EXPECT_TRUE(ISize(20, 20).IsSquare());
59 EXPECT_FALSE(ISize(20, 19).IsSquare());
60 EXPECT_FALSE(ISize(19, 20).IsSquare());
61 }
62
63 TEST(SizeTest, MaxDimension) {
64 EXPECT_EQ(Size(20, 20).MaxDimension(), 20);
65 EXPECT_EQ(Size(20, 19).MaxDimension(), 20);
66 EXPECT_EQ(Size(19, 20).MaxDimension(), 20);
67 EXPECT_EQ(Size(20, 21).MaxDimension(), 21);
68 EXPECT_EQ(Size(21, 20).MaxDimension(), 21);
69
70 EXPECT_EQ(ISize(20, 20).MaxDimension(), 20);
71 EXPECT_EQ(ISize(20, 19).MaxDimension(), 20);
72 EXPECT_EQ(ISize(19, 20).MaxDimension(), 20);
73 EXPECT_EQ(ISize(20, 21).MaxDimension(), 21);
74 EXPECT_EQ(ISize(21, 20).MaxDimension(), 21);
75 }
76
77 TEST(SizeTest, NegationOperator) {
78 EXPECT_EQ(-Size(10, 20), Size(-10, -20));
79 EXPECT_EQ(-Size(-10, 20), Size(10, -20));
80 EXPECT_EQ(-Size(10, -20), Size(-10, 20));
81 EXPECT_EQ(-Size(-10, -20), Size(10, 20));
82 }
83
84 } // namespace testing
85 } // namespace impeller
impeller::ISize
ISize64 ISize
Definition: size.h:140
impeller::Size
TSize< Scalar > Size
Definition: size.h:137
impeller
Definition: allocation.cc:12
impeller::testing::TEST
TEST(AllocationSizeTest, CanCreateTypedAllocations)
Definition: allocation_size_unittests.cc:10
size.h