1 | /** |
2 | * Copyright (c) Glow Contributors. See CONTRIBUTORS file. |
3 | * |
4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
5 | * you may not use this file except in compliance with the License. |
6 | * You may obtain a copy of the License at |
7 | * |
8 | * http://www.apache.org/licenses/LICENSE-2.0 |
9 | * |
10 | * Unless required by applicable law or agreed to in writing, software |
11 | * distributed under the License is distributed on an "AS IS" BASIS, |
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
13 | * See the License for the specific language governing permissions and |
14 | * limitations under the License. |
15 | */ |
16 | |
17 | // This file tests the basic functionality of the float16 type. |
18 | // This is by no mean a test to show the IEEE 754 compliance! |
19 | |
20 | #include "glow/Support/Float16.h" |
21 | |
22 | #include "gtest/gtest.h" |
23 | |
24 | using namespace glow; |
25 | |
26 | TEST(Float16, add) { |
27 | float16 a = 2.0; |
28 | float16 b = 1.0; |
29 | EXPECT_EQ(a + b, float16(float(a) + float(b))); |
30 | } |
31 | |
32 | TEST(Float16, addEqual) { |
33 | float16 a = 46.2; |
34 | float16 b = 13.66; |
35 | float16 aPlusB = a + b; |
36 | a += b; |
37 | EXPECT_EQ(a, aPlusB); |
38 | } |
39 | |
40 | TEST(Float16, sub) { |
41 | float16 a = 2.0; |
42 | float16 b = 0.5; |
43 | EXPECT_EQ(a - b, float16(float(a) - float(b))); |
44 | } |
45 | |
46 | TEST(Float16, minusEqual) { |
47 | float16 a = -146.2; |
48 | float16 b = 131.66; |
49 | float16 aMinusB = a - b; |
50 | a -= b; |
51 | EXPECT_EQ(a, aMinusB); |
52 | } |
53 | |
54 | TEST(Float16, mul) { |
55 | float16 a = 3.5; |
56 | float16 b = 3.0; |
57 | EXPECT_EQ(a * b, float16(float(a) * float(b))); |
58 | } |
59 | |
60 | TEST(Float16, mulEqual) { |
61 | float16 a = 3.5; |
62 | float16 b = 3.0; |
63 | float16 aMulB = a * b; |
64 | a *= b; |
65 | EXPECT_EQ(a, aMulB); |
66 | } |
67 | |
68 | TEST(Float16, div) { |
69 | float16 a = 16.5; |
70 | float16 b = -3.0; |
71 | EXPECT_EQ(a / b, float16(float(a) / float(b))); |
72 | } |
73 | |
74 | TEST(Float16, divEqual) { |
75 | float16 a = 16.5; |
76 | float16 b = -3.0; |
77 | float16 aDivB = a / b; |
78 | a /= b; |
79 | EXPECT_EQ(a, aDivB); |
80 | } |
81 | |
82 | TEST(Float16, gt) { |
83 | float16 a = 13.25; |
84 | float16 b = 3.56; |
85 | EXPECT_EQ(a > b, float(a) > float(b)); |
86 | EXPECT_TRUE(a > b); |
87 | } |
88 | |
89 | TEST(Float16, lt) { |
90 | float16 a = 123.75; |
91 | float16 b = -12.6; |
92 | EXPECT_EQ(a < b, float(a) < float(b)); |
93 | EXPECT_FALSE(a < b); |
94 | } |
95 | |
96 | TEST(Float16, eq) { |
97 | float16 a = -483.455; |
98 | float16 b = 453.0; |
99 | EXPECT_EQ(a == b, float(a) == float(b)); |
100 | EXPECT_FALSE(a == b); |
101 | EXPECT_TRUE(a == a); |
102 | } |
103 | |
104 | TEST(Float16, ge) { |
105 | float16 a = -31.455; |
106 | float16 b = 4543.4; |
107 | EXPECT_EQ(a >= b, float(a) >= float(b)); |
108 | EXPECT_FALSE(a >= b); |
109 | } |
110 | |
111 | TEST(Float16, le) { |
112 | float16 a = 214.1; |
113 | float16 b = 4543.4; |
114 | EXPECT_EQ(a <= b, float(a) <= float(b)); |
115 | EXPECT_TRUE(a <= b); |
116 | } |
117 | |
118 | template <typename T> static void testConvertTo() { |
119 | float16 a = 19.3; |
120 | T b = static_cast<T>(19.3); |
121 | EXPECT_NEAR(T(a), b, 1); |
122 | } |
123 | |
124 | #define TEST_CONVERT_TO(DEST_TYPE) \ |
125 | TEST(Float16, CONVERT_TO_##DEST_TYPE) { testConvertTo<DEST_TYPE>(); } |
126 | TEST_CONVERT_TO(float) |
127 | TEST_CONVERT_TO(double) |
128 | TEST_CONVERT_TO(int32_t) |
129 | TEST_CONVERT_TO(int64_t) |
130 | |
131 | #undef TEST_CONVERT_TO |
132 | |