Will Drewry | 8f367fc | 2017-03-30 22:07:48 -0500 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2017 The Android Open Source Project |
| 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 | #include <stdint.h> |
| 18 | |
| 19 | #include <ese/ese_sg.h> |
| 20 | #include <gtest/gtest.h> |
| 21 | |
| 22 | using ::testing::Test; |
| 23 | |
| 24 | class ScatterGatherTest : public virtual Test { |
| 25 | public: |
| 26 | ScatterGatherTest() { |
| 27 | } |
| 28 | virtual ~ScatterGatherTest() { } |
| 29 | virtual void SetUp() { } |
| 30 | virtual void TearDown() { } |
| 31 | }; |
| 32 | |
| 33 | TEST_F(ScatterGatherTest, OneToBuf) { |
| 34 | uint8_t sg_data[] = "HELLO WORLD"; |
| 35 | struct EseSgBuffer sg = { |
| 36 | .base = &sg_data[0], |
| 37 | .len = sizeof(sg_data), |
| 38 | }; |
| 39 | uint8_t dst[sizeof(sg_data) * 2]; |
| 40 | uint32_t copied; |
| 41 | copied = ese_sg_to_buf(&sg, 1, 0, sizeof(dst), dst); |
| 42 | EXPECT_EQ(copied, sizeof(sg_data)); |
| 43 | EXPECT_STREQ(reinterpret_cast<char *>(dst), |
| 44 | reinterpret_cast<char *>(sg_data)); |
| 45 | } |
| 46 | |
| 47 | TEST_F(ScatterGatherTest, OneFromBuf) { |
| 48 | uint8_t src[] = "HELLO WORLD!"; |
| 49 | uint8_t sg_data[sizeof(src) * 2]; |
| 50 | struct EseSgBuffer sg = { |
| 51 | .base = &sg_data[0], |
| 52 | .len = sizeof(sg_data), |
| 53 | }; |
| 54 | uint32_t copied; |
| 55 | copied = ese_sg_from_buf(&sg, 1, 0, sizeof(src), src); |
| 56 | EXPECT_EQ(copied, sizeof(src)); |
| 57 | EXPECT_STREQ(reinterpret_cast<char *>(src), |
| 58 | reinterpret_cast<char *>(sg_data)); |
| 59 | } |
| 60 | |
| 61 | |
| 62 | TEST_F(ScatterGatherTest, ThreeToBuf) { |
| 63 | uint8_t one[] = {'H', 'E', 'L'}; |
| 64 | uint8_t two[] = {'L', 'O', ' '}; |
| 65 | uint8_t three[] = "WORLD"; |
| 66 | struct EseSgBuffer sg[] = { |
| 67 | { |
| 68 | .base = one, |
| 69 | .len = sizeof(one), |
| 70 | }, |
| 71 | { |
| 72 | .base = two, |
| 73 | .len = sizeof(two), |
| 74 | }, |
| 75 | { |
| 76 | .base = three, |
| 77 | .len = sizeof(three), |
| 78 | }, |
| 79 | }; |
| 80 | uint8_t dst[256]; |
| 81 | uint32_t copied; |
| 82 | copied = ese_sg_to_buf(sg, 3, 0, sizeof(dst), dst); |
| 83 | EXPECT_EQ(copied, strlen("HELLO WORLD") + 1); |
| 84 | EXPECT_STREQ(reinterpret_cast<char *>(dst), |
| 85 | "HELLO WORLD"); |
| 86 | // Again but offset by the first bufs. |
| 87 | copied = ese_sg_to_buf(sg, 3, sizeof(one) + sizeof(two) - 2, sizeof(dst), |
| 88 | dst); |
| 89 | EXPECT_EQ(copied, (strlen("HELLO WORLD") + 1) - |
| 90 | (sizeof(one) + sizeof(two) - 2)); |
| 91 | EXPECT_STREQ(reinterpret_cast<char *>(dst), |
| 92 | "O WORLD"); |
| 93 | } |
| 94 | |
| 95 | |
| 96 | TEST_F(ScatterGatherTest, ThreeFromBuf) { |
| 97 | uint8_t one[3]; |
| 98 | uint8_t two[3]; |
| 99 | uint8_t three[6]; |
| 100 | struct EseSgBuffer sg[] = { |
| 101 | { |
| 102 | .base = one, |
| 103 | .len = sizeof(one), |
| 104 | }, |
| 105 | { |
| 106 | .base = two, |
| 107 | .len = sizeof(two), |
| 108 | }, |
| 109 | { |
| 110 | .base = three, |
| 111 | .len = sizeof(three), |
| 112 | }, |
| 113 | }; |
| 114 | uint8_t src[] = "HELLO WORLD"; |
| 115 | uint32_t copied; |
| 116 | copied = ese_sg_from_buf(sg, 3, 0, sizeof(src), src); |
| 117 | EXPECT_EQ(copied, sizeof(one) + sizeof(two) + sizeof(three)); |
| 118 | EXPECT_EQ(one[0], 'H'); |
| 119 | EXPECT_EQ(one[1], 'E'); |
| 120 | EXPECT_EQ(one[2], 'L'); |
| 121 | EXPECT_STREQ(reinterpret_cast<char *>(three), "WORLD"); |
| 122 | // Again but offset. |
| 123 | copied = ese_sg_from_buf(sg, 3, 6, sizeof(src), src); |
| 124 | EXPECT_EQ(copied, ese_sg_length(sg, 3) - 6); |
| 125 | EXPECT_EQ(three[5], ' '); |
| 126 | three[5] = 0; // NUL terminate for the test below. |
| 127 | EXPECT_STREQ(reinterpret_cast<char *>(three), "HELLO"); |
| 128 | } |
| 129 | |