mirror of https://github.com/openXC7/prjxray.git
93 lines
3.2 KiB
C++
93 lines
3.2 KiB
C++
#include <array>
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#include <gtest/gtest.h>
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#include <prjxray/xilinx/xc7series/bitstream_reader.h>
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#include <prjxray/xilinx/xc7series/configuration_packet.h>
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#include <prjxray/xilinx/xc7series/configuration_register.h>
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namespace xc7series = prjxray::xilinx::xc7series;
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TEST(BitstreamReaderTest, InitWithEmptyBytesReturnsNull) {
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absl::Span<uint8_t> bitstream;
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auto reader = xc7series::BitstreamReader::InitWithBytes(bitstream);
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EXPECT_FALSE(reader);
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}
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TEST(BitstreamReaderTest, InitWithOnlySyncReturnsObject) {
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std::vector<uint8_t> bitstream{0xAA, 0x99, 0x55, 0x66};
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auto reader = xc7series::BitstreamReader::InitWithBytes(bitstream);
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EXPECT_TRUE(reader);
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}
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TEST(BitstreamReaderTest, InitWithSyncAfterNonWordSizedPaddingReturnsObject) {
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std::vector<uint8_t> bitstream{0xFF, 0xFE, 0xAA, 0x99, 0x55, 0x66};
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auto reader = xc7series::BitstreamReader::InitWithBytes(bitstream);
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EXPECT_TRUE(reader);
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}
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TEST(BitstreamReaderTest, InitWithSyncAfterWordSizedPaddingReturnsObject) {
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std::vector<uint8_t> bitstream{0xFF, 0xFE, 0xFD, 0xFC,
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0xAA, 0x99, 0x55, 0x66};
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auto reader = xc7series::BitstreamReader::InitWithBytes(bitstream);
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EXPECT_TRUE(reader);
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}
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TEST(BitstreamReaderTest, ParsesType1Packet) {
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std::vector<uint8_t> bitstream{
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0xAA, 0x99, 0x55, 0x66, // sync
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0x20, 0x00, 0x00, 0x00, // NOP
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};
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auto reader = xc7series::BitstreamReader::InitWithBytes(bitstream);
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ASSERT_TRUE(reader);
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ASSERT_NE(reader->begin(), reader->end());
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auto first_packet = reader->begin();
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EXPECT_EQ(first_packet->opcode(),
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xc7series::ConfigurationPacket::Opcode::NOP);
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EXPECT_EQ(++first_packet, reader->end());
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}
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TEST(BitstreamReaderTest, ParseType2PacketWithoutType1Fails) {
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std::vector<uint8_t> bitstream{
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0xAA, 0x99, 0x55, 0x66, // sync
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0x40, 0x00, 0x00, 0x00, // Type 2 NOP
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};
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auto reader = xc7series::BitstreamReader::InitWithBytes(bitstream);
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ASSERT_TRUE(reader);
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EXPECT_EQ(reader->begin(), reader->end());
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}
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TEST(BitstreamReaderTest, ParsesType2AfterType1Packet) {
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std::vector<uint8_t> bitstream{
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0xAA, 0x99, 0x55, 0x66, // sync
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0x28, 0x00, 0x60, 0x00, // Type 1 Read zero bytes from 6
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0x48, 0x00, 0x00, 0x04, // Type 2 write of 4 words
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0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8,
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0x9, 0xA, 0xB, 0xC, 0xD, 0xE, 0xF, 0x10,
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};
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std::vector<uint32_t> data_words{0x01020304, 0x05060708, 0x090A0B0C,
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0x0D0E0F10};
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auto reader = xc7series::BitstreamReader::InitWithBytes(bitstream);
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ASSERT_TRUE(reader);
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ASSERT_NE(reader->begin(), reader->end());
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auto first_packet = reader->begin();
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EXPECT_EQ(first_packet->opcode(),
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xc7series::ConfigurationPacket::Opcode::Read);
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EXPECT_EQ(first_packet->address(),
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xc7series::ConfigurationRegister::FDRO);
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EXPECT_EQ(first_packet->data(), absl::Span<uint32_t>());
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auto second_packet = ++first_packet;
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ASSERT_NE(second_packet, reader->end());
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EXPECT_EQ(second_packet->opcode(),
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xc7series::ConfigurationPacket::Opcode::Read);
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EXPECT_EQ(second_packet->address(),
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xc7series::ConfigurationRegister::FDRO);
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EXPECT_EQ(first_packet->data(), absl::Span<uint32_t>(data_words));
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EXPECT_EQ(++first_packet, reader->end());
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}
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