Yi Jin | ad3e6e5 | 2018-04-03 15:10:34 -0700 | [diff] [blame] | 1 | // Copyright (C) 2018 The Android Open Source Project |
| 2 | // |
| 3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | // you may not use this file except in compliance with the License. |
| 5 | // You may obtain a copy of the License at |
| 6 | // |
| 7 | // http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | // |
| 9 | // Unless required by applicable law or agreed to in writing, software |
| 10 | // distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | // See the License for the specific language governing permissions and |
| 13 | // limitations under the License. |
| 14 | #include <android/util/EncodedBuffer.h> |
| 15 | #include <gmock/gmock.h> |
| 16 | #include <gtest/gtest.h> |
| 17 | |
| 18 | using namespace android::util; |
Joe Onorato | ceece48 | 2019-03-27 00:20:25 -0700 | [diff] [blame] | 19 | using android::sp; |
Yi Jin | ad3e6e5 | 2018-04-03 15:10:34 -0700 | [diff] [blame] | 20 | |
Yi Jin | c3d4b28 | 2018-04-23 16:02:20 -0700 | [diff] [blame] | 21 | constexpr size_t TEST_CHUNK_SIZE = 16UL; |
| 22 | constexpr size_t TEST_CHUNK_HALF_SIZE = TEST_CHUNK_SIZE / 2; |
| 23 | constexpr size_t TEST_CHUNK_3X_SIZE = 3 * TEST_CHUNK_SIZE; |
| 24 | |
| 25 | static void expectPointer(EncodedBuffer::Pointer* p, size_t pos) { |
| 26 | EXPECT_EQ(p->pos(), pos); |
| 27 | EXPECT_EQ(p->index(), pos / TEST_CHUNK_SIZE); |
| 28 | EXPECT_EQ(p->offset(), pos % TEST_CHUNK_SIZE); |
| 29 | } |
| 30 | |
| 31 | TEST(EncodedBufferTest, WriteSimple) { |
| 32 | EncodedBuffer buffer(TEST_CHUNK_SIZE); |
| 33 | EXPECT_EQ(buffer.size(), 0UL); |
| 34 | expectPointer(buffer.wp(), 0); |
| 35 | EXPECT_EQ(buffer.currentToWrite(), TEST_CHUNK_SIZE); |
| 36 | for (size_t i = 0; i < TEST_CHUNK_HALF_SIZE; i++) { |
| 37 | buffer.writeRawByte(50 + i); |
| 38 | } |
| 39 | EXPECT_EQ(buffer.size(), TEST_CHUNK_HALF_SIZE); |
| 40 | expectPointer(buffer.wp(), TEST_CHUNK_HALF_SIZE); |
| 41 | EXPECT_EQ(buffer.currentToWrite(), TEST_CHUNK_HALF_SIZE); |
| 42 | for (size_t i = 0; i < TEST_CHUNK_SIZE; i++) { |
| 43 | buffer.writeRawByte(80 + i); |
| 44 | } |
| 45 | EXPECT_EQ(buffer.size(), TEST_CHUNK_SIZE + TEST_CHUNK_HALF_SIZE); |
| 46 | expectPointer(buffer.wp(), TEST_CHUNK_SIZE + TEST_CHUNK_HALF_SIZE); |
| 47 | EXPECT_EQ(buffer.currentToWrite(), TEST_CHUNK_HALF_SIZE); |
| 48 | |
| 49 | // verifies the buffer's data |
| 50 | expectPointer(buffer.ep(), 0); |
| 51 | for (size_t i = 0; i < TEST_CHUNK_HALF_SIZE; i++) { |
| 52 | EXPECT_EQ(buffer.readRawByte(), 50 + i); |
| 53 | } |
| 54 | for (size_t i = 0; i < TEST_CHUNK_SIZE; i++) { |
| 55 | EXPECT_EQ(buffer.readRawByte(), 80 + i); |
| 56 | } |
| 57 | |
| 58 | // clears the buffer |
| 59 | buffer.clear(); |
| 60 | EXPECT_EQ(buffer.size(), 0UL); |
| 61 | expectPointer(buffer.wp(), 0); |
| 62 | } |
| 63 | |
| 64 | TEST(EncodedBufferTest, WriteVarint) { |
| 65 | EncodedBuffer buffer(TEST_CHUNK_SIZE); |
| 66 | size_t expected_buffer_size = 0; |
| 67 | EXPECT_EQ(buffer.writeRawVarint32(13), 1); |
| 68 | expected_buffer_size += 1; |
| 69 | EXPECT_EQ(buffer.size(), expected_buffer_size); |
| 70 | EXPECT_EQ(buffer.writeRawVarint32(UINT32_C(-1)), 5); |
| 71 | expected_buffer_size += 5; |
| 72 | EXPECT_EQ(buffer.size(), expected_buffer_size); |
| 73 | |
| 74 | EXPECT_EQ(buffer.writeRawVarint64(200), 2); |
| 75 | expected_buffer_size += 2; |
| 76 | EXPECT_EQ(buffer.size(), expected_buffer_size); |
| 77 | EXPECT_EQ(buffer.writeRawVarint64(UINT64_C(-1)), 10); |
| 78 | expected_buffer_size += 10; |
| 79 | EXPECT_EQ(buffer.size(), expected_buffer_size); |
| 80 | |
| 81 | buffer.writeRawFixed32(UINT32_C(-1)); |
| 82 | expected_buffer_size += 4; |
| 83 | EXPECT_EQ(buffer.size(), expected_buffer_size); |
| 84 | buffer.writeRawFixed64(UINT64_C(-1)); |
| 85 | expected_buffer_size += 8; |
| 86 | EXPECT_EQ(buffer.size(), expected_buffer_size); |
| 87 | |
| 88 | EXPECT_EQ(buffer.writeHeader(32, 2), 2); |
| 89 | expected_buffer_size += 2; |
| 90 | EXPECT_EQ(buffer.size(), expected_buffer_size); |
| 91 | |
| 92 | // verify data are correctly written to the buffer. |
| 93 | expectPointer(buffer.ep(), 0); |
| 94 | EXPECT_EQ(buffer.readRawVarint(), UINT32_C(13)); |
| 95 | EXPECT_EQ(buffer.readRawVarint(), UINT32_C(-1)); |
| 96 | EXPECT_EQ(buffer.readRawVarint(), UINT64_C(200)); |
| 97 | EXPECT_EQ(buffer.readRawVarint(), UINT64_C(-1)); |
| 98 | EXPECT_EQ(buffer.readRawFixed32(), UINT32_C(-1)); |
| 99 | EXPECT_EQ(buffer.readRawFixed64(), UINT64_C(-1)); |
| 100 | EXPECT_EQ(buffer.readRawVarint(), UINT64_C((32 << 3) + 2)); |
| 101 | expectPointer(buffer.ep(), expected_buffer_size); |
| 102 | } |
| 103 | |
| 104 | TEST(EncodedBufferTest, Edit) { |
| 105 | EncodedBuffer buffer(TEST_CHUNK_SIZE); |
| 106 | buffer.writeRawFixed64(0xdeadbeefdeadbeef); |
| 107 | EXPECT_EQ(buffer.readRawFixed64(), UINT64_C(0xdeadbeefdeadbeef)); |
| 108 | |
| 109 | buffer.editRawFixed32(4, 0x12345678); |
| 110 | // fixed 64 is little endian order. |
| 111 | buffer.ep()->rewind(); // rewind ep for readRawFixed64 from 0 |
| 112 | EXPECT_EQ(buffer.readRawFixed64(), UINT64_C(0x12345678deadbeef)); |
| 113 | |
| 114 | buffer.wp()->rewind(); |
| 115 | expectPointer(buffer.wp(), 0); |
| 116 | buffer.copy(4, 3); |
| 117 | buffer.ep()->rewind(); // rewind ep for readRawFixed64 from 0 |
| 118 | EXPECT_EQ(buffer.readRawFixed64(), UINT64_C(0x12345678de345678)); |
| 119 | } |
| 120 | |
| 121 | TEST(EncodedBufferTest, ReadSimple) { |
| 122 | EncodedBuffer buffer(TEST_CHUNK_SIZE); |
| 123 | for (size_t i = 0; i < TEST_CHUNK_3X_SIZE; i++) { |
| 124 | buffer.writeRawByte(i); |
| 125 | } |
Joe Onorato | ceece48 | 2019-03-27 00:20:25 -0700 | [diff] [blame] | 126 | sp<ProtoReader> reader1 = buffer.read(); |
| 127 | EXPECT_EQ(reader1->size(), TEST_CHUNK_3X_SIZE); |
| 128 | EXPECT_EQ(reader1->bytesRead(), 0); |
Yi Jin | c3d4b28 | 2018-04-23 16:02:20 -0700 | [diff] [blame] | 129 | |
Joe Onorato | ceece48 | 2019-03-27 00:20:25 -0700 | [diff] [blame] | 130 | while (reader1->readBuffer() != NULL) { |
| 131 | reader1->move(reader1->currentToRead()); |
Yi Jin | c3d4b28 | 2018-04-23 16:02:20 -0700 | [diff] [blame] | 132 | } |
Joe Onorato | ceece48 | 2019-03-27 00:20:25 -0700 | [diff] [blame] | 133 | EXPECT_EQ(reader1->bytesRead(), TEST_CHUNK_3X_SIZE); |
Yi Jin | c3d4b28 | 2018-04-23 16:02:20 -0700 | [diff] [blame] | 134 | |
Joe Onorato | ceece48 | 2019-03-27 00:20:25 -0700 | [diff] [blame] | 135 | sp<ProtoReader> reader2 = buffer.read(); |
Yi Jin | c3d4b28 | 2018-04-23 16:02:20 -0700 | [diff] [blame] | 136 | uint8_t val = 0; |
Joe Onorato | ceece48 | 2019-03-27 00:20:25 -0700 | [diff] [blame] | 137 | while (reader2->hasNext()) { |
| 138 | EXPECT_EQ(reader2->next(), val); |
Yi Jin | c3d4b28 | 2018-04-23 16:02:20 -0700 | [diff] [blame] | 139 | val++; |
| 140 | } |
Joe Onorato | ceece48 | 2019-03-27 00:20:25 -0700 | [diff] [blame] | 141 | EXPECT_EQ(reader2->bytesRead(), TEST_CHUNK_3X_SIZE); |
| 142 | EXPECT_EQ(reader1->bytesRead(), TEST_CHUNK_3X_SIZE); |
Yi Jin | c3d4b28 | 2018-04-23 16:02:20 -0700 | [diff] [blame] | 143 | } |
| 144 | |
Yi Jin | ad3e6e5 | 2018-04-03 15:10:34 -0700 | [diff] [blame] | 145 | TEST(EncodedBufferTest, ReadVarint) { |
| 146 | EncodedBuffer buffer; |
| 147 | uint64_t val = UINT64_C(1522865904593); |
Yi Jin | c3d4b28 | 2018-04-23 16:02:20 -0700 | [diff] [blame] | 148 | size_t len = buffer.writeRawVarint64(val); |
Joe Onorato | ceece48 | 2019-03-27 00:20:25 -0700 | [diff] [blame] | 149 | sp<ProtoReader> reader = buffer.read(); |
| 150 | EXPECT_EQ(reader->size(), len); |
| 151 | EXPECT_EQ(reader->readRawVarint(), val); |
Yi Jin | ad3e6e5 | 2018-04-03 15:10:34 -0700 | [diff] [blame] | 152 | } |