| 1 | //===-- GDBRemoteCommunicationTest.cpp ------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | #include "GDBRemoteTestUtils.h" |
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| 9 | #include "llvm/Testing/Support/Error.h" |
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| 10 | |
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| 11 | using namespace lldb_private::process_gdb_remote; |
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| 12 | using namespace lldb_private; |
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| 13 | using namespace lldb; |
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| 14 | typedef GDBRemoteCommunication::PacketResult PacketResult; |
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| 15 | |
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| 16 | namespace { |
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| 17 | |
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| 18 | class TestClient : public GDBRemoteCommunication { |
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| 19 | public: |
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| 20 | TestClient() : GDBRemoteCommunication() {} |
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| 21 | |
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| 22 | PacketResult (StringExtractorGDBRemote &response) { |
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| 23 | return GDBRemoteCommunication::ReadPacket(response, timeout: std::chrono::seconds(1), |
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| 24 | /*sync_on_timeout*/ false); |
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| 25 | } |
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| 26 | }; |
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| 27 | |
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| 28 | class GDBRemoteCommunicationTest : public GDBRemoteTest { |
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| 29 | public: |
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| 30 | void SetUp() override { |
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| 31 | ASSERT_THAT_ERROR(GDBRemoteCommunication::ConnectLocally(client, server), |
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| 32 | llvm::Succeeded()); |
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| 33 | } |
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| 34 | |
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| 35 | protected: |
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| 36 | TestClient client; |
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| 37 | MockServer server; |
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| 38 | |
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| 39 | bool Write(llvm::StringRef packet) { |
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| 40 | ConnectionStatus status; |
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| 41 | return server.WriteAll(src: packet.data(), src_len: packet.size(), status, error_ptr: nullptr) == |
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| 42 | packet.size(); |
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| 43 | } |
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| 44 | }; |
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| 45 | } // end anonymous namespace |
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| 46 | |
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| 47 | // Test that we can decode packets correctly. In particular, verify that |
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| 48 | // checksum calculation works. |
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| 49 | TEST_F(GDBRemoteCommunicationTest, ReadPacket) { |
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| 50 | struct TestCase { |
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| 51 | llvm::StringLiteral Packet; |
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| 52 | llvm::StringLiteral Payload; |
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| 53 | }; |
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| 54 | static constexpr TestCase Tests[] = { |
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| 55 | {.Packet: {"$#00" }, .Payload: {"" }}, |
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| 56 | {.Packet: {"$foobar#79" }, .Payload: {"foobar" }}, |
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| 57 | {.Packet: {"$}]#da" }, .Payload: {"}" }}, // Escaped } |
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| 58 | {.Packet: {"$x*%#c7" }, .Payload: {"xxxxxxxxx" }}, // RLE |
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| 59 | {.Packet: {"+$#00" }, .Payload: {"" }}, // Spurious ACK |
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| 60 | {.Packet: {"-$#00" }, .Payload: {"" }}, // Spurious NAK |
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| 61 | }; |
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| 62 | for (const auto &Test : Tests) { |
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| 63 | SCOPED_TRACE(Test.Packet + " -> " + Test.Payload); |
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| 64 | StringExtractorGDBRemote response; |
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| 65 | ASSERT_TRUE(Write(Test.Packet)); |
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| 66 | ASSERT_EQ(PacketResult::Success, client.ReadPacket(response)); |
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| 67 | ASSERT_EQ(Test.Payload, response.GetStringRef()); |
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| 68 | ASSERT_EQ(PacketResult::Success, server.GetAck()); |
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| 69 | } |
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| 70 | } |
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| 71 | |
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