教學課程:使用 zxdb 偵錯測試

本教學課程逐步說明如何使用 fx test 指令偵錯工作流程 和 Fuchsia 偵錯工具 (zxdb)。

如要進一步瞭解如何使用 zxdb 對測試進行偵錯,請參閱 使用 zxdb 偵錯測試

瞭解測試案例

荒漠油廠

Rust 測試是由 Rust 測試執行器執行。取消喜歡 用於 C++ 測試的 gTest 或 gUnit 執行器,Rust 測試執行元件預設為執行 以平行處理測試案例這會導致使用 --break-on-failure 功能。如需深入瞭解 平行測試程序偵錯,請參閱 同時執行測試案例。平行測試 支援更多程序

根據一些範例 信任測試程式碼

...
let mut log_helper2 = LogSinkHelper::new(&directory);
log_helper2.write_log("my msg1");
log_helper.write_log("my msg2");

let mut expected = vec!["my msg1".to_owned(), "my msg3".to_owned()];
expected.sort();
let mut actual = vec![recv_logs.next().await.unwrap(), recv_logs.next().await.unwrap()];
actual.sort();

assert_eq!(expected, actual);
...

您可以使用 fx set 將這個測試目標新增至建構圖表:

fx set workbench_eng.x64 --with-tests //src/diagnostics/archivist:tests

C++

根據預設,gTest 測試執行元件會依序執行測試案例,因此只會執行一個 系統就會同時偵錯您可以同時執行測試案例 將 --parallel-cases 旗標新增至 fx test 指令。

根據一些範例 C++ 測試程式碼

// Inject 1 process.
auto process1 = std::make_unique<MockProcess>(nullptr, kProcessKoid1, kProcessName1);
process1->AddThread(kProcess1ThreadKoid1);
harness.debug_agent()->InjectProcessForTest(std::move(process1));

// And another, with 2 threads.
auto process2 = std::make_unique<MockProcess>(nullptr, kProcessKoid2, kProcessName2);
process2->AddThread(kProcess2ThreadKoid1);
process2->AddThread(kProcess2ThreadKoid2);
harness.debug_agent()->InjectProcessForTest(std::move(process2));

reply = {};
remote_api->OnStatus(request, &reply);

ASSERT_EQ(reply.processes.size(), 3u);  // <-- This will fail, since reply.processes.size() == 2
EXPECT_EQ(reply.processes[0].process_koid, kProcessKoid1);
EXPECT_EQ(reply.processes[0].process_name, kProcessName1);
...

您可以使用 fx set 將這個測試目標新增至建構圖表:

fx set workbench_eng.x64 --with-tests //src/developer/debug:tests

執行測試

荒漠油廠

使用 fx test --break-on-failure 指令執行測試,例如:

fx test -o --break-on-failure archivist-unittests

輸出結果如下所示:

<...fx test startup...>

Running 1 tests

Starting: fuchsia-pkg://fuchsia.com/archivist-tests#meta/archivist-unittests.cm
Command: fx ffx test run --max-severity-logs WARN --break-on-failure fuchsia-pkg://fuchsia.com/archivist-tests?hash=9a531e48fe82d86edef22f86f7e9b819d18a7d678f0823912d9224dd91f8926f#meta/archivist-unittests.cm
Running test 'fuchsia-pkg://fuchsia.com/archivist-tests?hash=9a531e48fe82d86edef22f86f7e9b819d18a7d678f0823912d9224dd91f8926f#meta/archivist-unittests.cm'

[RUNNING] archivist::tests::can_log_and_retrive_log
[101430.272555][5631048][5631050][<root>][can_log_and_retrive_log] WARN: Failed to create event source for log sink requests err=Error connecting to protocol path: /events/log_sink_requested_event_stream

Caused by:
    NOT_FOUND
[101430.277339][5631048][5631050][<root>][can_log_and_retrive_log] WARN: Failed to create event source for InspectSink requests err=Error connecting to protocol path: /events/inspect_sink_requested_event_stream
[101430.336160][5631048][5631050][<root>][can_log_and_retrive_log] INFO: archivist: Entering core loop.
[101430.395986][5631048][5631050][<root>][can_log_and_retrive_log] ERROR: [src/lib/diagnostics/log/rust/src/lib.rs(62)] PANIC info=panicked at ../../src/diagnostics/archivist/src/archivist.rs:544:9:
assertion `left == right` failed
  left: ["my msg1", "my msg2"]
 right: ["my msg1", "my msg3"]

👋 zxdb is loading symbols to debug test failure in archivist-unittests.cm, please wait.
⚠️  test failure in archivist-unittests.cm, type `frame` or `help` to get started.
  536         actual.sort();
  537
▶ 538         assert_eq!(expected, actual);
  539
  540         // can log after killing log sink proxy
🛑 process 9 archivist_lib_lib_test::archivist::tests::can_log_and_retrive_log::test_entry_point::λ(core::task::wake::Context*) • archivist.rs:538
[zxdb]

請注意,由於測試結果不一致 系統會執行測試案例 預設為平行處理。請避免 方法是搭配使用 --parallel-cases 選項和 fx test,例如: fx test --parallel-cases 1 --break-on-failure archivist-unittests

C++

使用 fx test --break-on-failure 指令執行測試,例如:

fx test -o --break-on-failure debug_agent_unit_tests

輸出結果如下所示:

<...fx test startup...>

Starting: fuchsia-pkg://fuchsia.com/debug_agent_unit_tests#meta/debug_agent_unit_tests.cm (NOT HERMETIC)
Command: fx ffx test run --realm /core/testing:system-tests --max-severity-logs WARN --break-on-failure fuchsia-pkg://fuchsia.com/debug_agent_unit_tests?hash=3f6d97801bb147034a344e3fe1bb69291a7b690b9d3d075246ddcba59397ac12#meta/debug_agent_unit_tests.cm

Status: [duration: 30.9s]  [tasks: 3 running, 15/19 complete]
  Running 2 tests                      [                                                                                                     ]           0.0%
👋 zxdb is loading symbols to debug test failure in debug_agent_unit_tests.cm, please wait.
⚠️  test failure in debug_agent_unit_tests.cm, type `frame` or `help` to get started.
  103   remote_api->OnStatus(request, &reply);
  104
▶ 105   ASSERT_EQ(reply.processes.size(), 3u);
  106   EXPECT_EQ(reply.processes[0].process_koid, kProcessKoid1);
  107   EXPECT_EQ(reply.processes[0].process_name, kProcessName1);
🛑 thread 1 debug_agent::DebugAgentTests_OnGlobalStatus_Test::TestBody(debug_agent::DebugAgentTests_OnGlobalStatus_Test*) • debug_agent_unittest.cc:105
[zxdb]

檢查失敗情形

荒漠油廠

這個範例含有測試失敗,因此 Rust 測試會發出 abort 失敗,zxdb 會發出通知和回報。「zxdb」也會分析通話 即可直接直接把我們直接帶入原始碼 作業失敗您可以查看目前頁框中的其他程式碼行 搭配 list,例如:

[zxdb] list
  533         expected.sort();
  534
  535         let mut actual = vec![recv_logs.next().await.unwrap(), recv_logs.next().await.unwrap()];
  536         actual.sort();
  537
▶ 538         assert_eq!(expected, actual);
  539
  540         // can log after killing log sink proxy
  541         log_helper.kill_log_sink();
  542         log_helper.write_log("my msg1");
  543         log_helper.write_log("my msg2");
  544
  545         assert_eq!(
  546             expected,
  547             vec! {recv_logs.next().await.unwrap(),recv_logs.next().await.unwrap()}
  548         );
[zxdb]

您也可以使用 frame 檢查整個呼叫堆疊,例如:

[zxdb] frame
  0…12 «Rust library» (-r expands)
  13 std::panicking::begin_panic_handler(…) • library/std/src/panicking.rs:645
  14 core::panicking::panic_fmt(…) • library/core/src/panicking.rs:72
  15 core::panicking::assert_failed_inner(…) • library/core/src/panicking.rs:402
  16 core::panicking::assert_failed<…>(…) • /b/s/w/ir/x/w/fuchsia-third_party-rust/library/core/src/panicking.rs:357
▶ 17 archivist_lib_lib_test::archivist::tests::can_log_and_retrive_log::test_entry_point::λ(…) • archivist.rs:544
  18 core::future::future::«impl»::poll<…>(…) • future/future.rs:123
  19 fuchsia_async::test_support::«impl»::run_singlethreaded::λ::λ(…) • test_support.rs:26
  20 fuchsia_async::test_support::«impl»::run_singlethreaded::λ::λ(…) • test_support.rs:121
  21 fuchsia_async::atomic_future::«impl»::poll<…>(…) • atomic_future.rs:78
  22 fuchsia_async::atomic_future::AtomicFuture::try_poll(…) • atomic_future.rs:223
  23 fuchsia_async::runtime::fuchsia::executor::common::Inner::try_poll(…) • executor/common.rs:588
  24 fuchsia_async::runtime::fuchsia::executor::common::Inner::poll_ready_tasks(…) • executor/common.rs:148
  25 fuchsia_async::runtime::fuchsia::executor::common::Inner::worker_lifecycle<…>(…) • executor/common.rs:448
  26 fuchsia_async::runtime::fuchsia::executor::local::LocalExecutor::run<…>(…) • executor/local.rs:100
  27 fuchsia_async::runtime::fuchsia::executor::local::LocalExecutor::run_singlethreaded<…>(…) • executor/local.rs:68
  28 fuchsia_async::test_support::«impl»::run_singlethreaded::λ() • test_support.rs:119
  29 fuchsia_async::test_support::Config::in_parallel(…) • test_support.rs:214
  30 fuchsia_async::test_support::«impl»::run_singlethreaded(…) • test_support.rs:116
  31 fuchsia_async::test_support::run_singlethreaded_test<…>(…) • test_support.rs:226
  32 fuchsia::test_singlethreaded<…>(…) • fuchsia/src/lib.rs:188
  33 archivist_lib_lib_test::archivist::tests::can_log_and_retrive_log() • archivist.rs:519
  34 archivist_lib_lib_test::archivist::tests::can_log_and_retrive_log::λ(…) • archivist.rs:520
  35 core::ops::function::FnOnce::call_once<…>(…) • /b/s/w/ir/x/w/fuchsia-third_party-rust/library/core/src/ops/function.rs:250
  36 core::ops::function::FnOnce::call_once<…>(…) • library/core/src/ops/function.rs:250 (inline)
  37 test::__rust_begin_short_backtrace<…>(…) • library/test/src/lib.rs:621
  38 test::run_test_in_spawned_subprocess(…) • library/test/src/lib.rs:749
  39 test::test_main_static_abort(…) • library/test/src/lib.rs:197
  40 archivist_lib_lib_test::main() • archivist/src/lib.rs:1
  41…58 «Rust startup» (-r expands)
[zxdb]

您執行的所有指令都會在頁框 #17 的內容中,如 所示。 您可以再加入一些額外的背景資訊,再次列出原始碼:

[zxdb] list -c 10
  528         let mut log_helper2 = LogSinkHelper::new(&directory);
  529         log_helper2.write_log("my msg1");
  530         log_helper.write_log("my msg3");
  531
  532         let mut expected = vec!["my msg1".to_owned(), "my msg2".to_owned()];
  533         expected.sort();
  534
  535         let mut actual = vec![recv_logs.next().await.unwrap(), recv_logs.next().await.unwrap()];
  536         actual.sort();
  537
▶ 538         assert_eq!(expected, actual);
  539
  540         // can log after killing log sink proxy
  541         log_helper.kill_log_sink();
  542         log_helper.write_log("my msg1");
  543         log_helper.write_log("my msg2");
  544
  545         assert_eq!(
  546             expected,
  547             vec! {recv_logs.next().await.unwrap(),recv_logs.next().await.unwrap()}
  548         );
[zxdb]

若要找出測試失敗的原因,請列印一些變數以查看測試內容 。actual 框架包含本機變數, 應該包含透過呼叫 write_log 上的 來新增的部分字串 log_helperlog_helper2 執行個體,並透過 mpsc 管道 recv_logs

[zxdb] print expected
vec!["my msg1", "my msg3"]
[zxdb] print actual
vec!["my msg1", "my msg2"]

測試的期望似乎有點不正確。符合期望 第 "my msg3" 應為第二個字串,但實際上它會記錄下來 "my msg2"。您可以修正測試:"my msg2"。您現在可以 如要繼續完成測試套件,請卸離測試套件:

[zxdb] quit

<...fx test output continues...>

Failed tests: archivist::tests::can_log_and_retrive_log
122 out of 123 tests passed...

Test fuchsia-pkg://fuchsia.com/archivist-tests?hash=8bcb30a2bfb923a4b42d1f0ea590af613ab0b1aa1ac67ada56ae4d325f3330a0#meta/archivist-unittests.cm produced unexpected high-severity logs:
----------------xxxxx----------------
[105255.347070][5853309][5853311][<root>][can_log_and_retrive_log] ERROR: [src/lib/diagnostics/log/rust/src/lib.rs(62)] PANIC info=panicked at ../../src/diagnostics/archivist/src/archivist.rs:544:9:
assertion `left == right` failed
  left: ["my msg1", "my msg2"]
 right: ["my msg1", "my msg3"]

----------------xxxxx----------------
Failing this test. See: https://fuchsia.dev/fuchsia-src/development/diagnostics/test_and_logs#restricting_log_severity

fuchsia-pkg://fuchsia.com/archivist-tests?hash=8bcb30a2bfb923a4b42d1f0ea590af613ab0b1aa1ac67ada56ae4d325f3330a0#meta/archivist-unittests.cm completed with result: FAILED
The test was executed in the hermetic realm. If your test depends on system capabilities, pass in correct realm. See https://fuchsia.dev/go/components/non-hermetic-tests
Tests failed.
Deleting 1 files at /tmp/tmpgr0otc3w: ffx_logs/ffx.log
To keep these files, set --ffx-output-directory.

現在,只要對程式碼進行下列變更,即可修正測試問題:

- let mut expected = vec!["my msg1".to_owned(), "my msg3".to_owned()];
+ let mut expected = vec!["my msg1".to_owned(), "my msg2".to_owned()];

您現在可以再次執行測試:

fx test --break-on-failure archivist-unittests

輸出內容應如下所示:

<...fx test startup...>

Running 1 tests

Starting: fuchsia-pkg://fuchsia.com/archivist-tests#meta/archivist-unittests.cm
Command: fx ffx test run --max-severity-logs WARN --break-on-failure fuchsia-pkg://fuchsia.com/archivist-tests?hash=36bf634de9f8850fad02fe43ec7fbe2b086000d0f55f7028d6d9fc8320738301#meta/archivist-unittests.cm
Running test 'fuchsia-pkg://fuchsia.com/archivist-tests?hash=36bf634de9f8850fad02fe43ec7fbe2b086000d0f55f7028d6d9fc8320738301#meta/archivist-unittests.cm'
[RUNNING] accessor::tests::accessor_skips_invalid_selectors
[RUNNING] accessor::tests::batch_iterator_on_ready_is_called
[RUNNING] accessor::tests::batch_iterator_terminates_on_client_disconnect
[RUNNING] accessor::tests::buffered_iterator_handles_peer_closed
[RUNNING] accessor::tests::buffered_iterator_handles_two_consecutive_buffer_waits
[RUNNING] accessor::tests::logs_only_accept_basic_component_selectors
[RUNNING] accessor::tests::socket_writer_does_not_handle_cbor
[RUNNING] accessor::tests::socket_writer_handles_closed_socket
[RUNNING] accessor::tests::socket_writer_handles_text
[RUNNING] archivist::tests::can_log_and_retrive_log
[PASSED]  accessor::tests::socket_writer_handles_text
[RUNNING] archivist::tests::log_from_multiple_sock
[PASSED]  accessor::tests::socket_writer_does_not_handle_cbor
[RUNNING] archivist::tests::remote_log_test
[PASSED]  accessor::tests::socket_writer_handles_closed_socket
[RUNNING] archivist::tests::stop_works
[PASSED]  accessor::tests::buffered_iterator_handles_peer_closed
[RUNNING] configs::tests::parse_allow_empty_pipeline
[PASSED]  accessor::tests::buffered_iterator_handles_two_consecutive_buffer_waits
[RUNNING] configs::tests::parse_disabled_valid_pipeline
<...lots of tests...>
[PASSED]  logs::repository::tests::multiplexer_broker_cleanup
[PASSED]  logs::tests::attributed_inspect_two_v2_streams_different_identities
[RUNNING] logs::tests::unfiltered_stats
[PASSED]  logs::tests::test_debuglog_drainer
[RUNNING] utils::tests::drop_test
[PASSED]  logs::tests::test_filter_by_combination
[PASSED]  logs::tests::test_filter_by_min_severity
[PASSED]  logs::tests::test_filter_by_pid
[PASSED]  logs::tests::test_filter_by_tags
[PASSED]  logs::tests::test_filter_by_tid
[PASSED]  logs::tests::test_log_manager_dump
[PASSED]  logs::tests::test_structured_log
[PASSED]  logs::tests::test_log_manager_simple
[PASSED]  logs::tests::unfiltered_stats
[PASSED]  utils::tests::drop_test

128 out of 128 tests passed...
fuchsia-pkg://fuchsia.com/archivist-tests?hash=36bf634de9f8850fad02fe43ec7fbe2b086000d0f55f7028d6d9fc8320738301#meta/archivist-unittests.cm completed with result: PASSED
Deleting 1 files at /tmp/tmpho9yjjz9: ffx_logs/ffx.log
To keep these files, set --ffx-output-directory.

Status: [duration: 36.4s] [tests: PASS: 1 FAIL: 0 SKIP: 0]
  Running 1 tests                            [====================================================================================================================]            100.0%

C++

示例包含測試失敗,gTest 可選擇插入軟體 找出 zxdb 擷取到測試失敗路徑的中斷點。zxdb擁有 也決定了測試程式碼的位置 測試重點如果想查看這幾行程式碼 包含 list 的目前影格,例如:

[zxdb] list
  100   harness.debug_agent()->InjectProcessForTest(std::move(process2));
  101
  102   reply = {};
  103   remote_api->OnStatus(request, &reply);
  104
▶ 105   ASSERT_EQ(reply.processes.size(), 3u);
  106   EXPECT_EQ(reply.processes[0].process_koid, kProcessKoid1);
  107   EXPECT_EQ(reply.processes[0].process_name, kProcessName1);
  108   ASSERT_EQ(reply.processes[0].threads.size(), 1u);

您可以使用 list-c 標記查看更多原始碼:

[zxdb] list -c 10
    95   constexpr uint64_t kProcess2ThreadKoid2 = 0x2;
    96
    97   auto process2 = std::make_unique<MockProcess>(nullptr, kProcessKoid2, kProcessName2);
    98   process2->AddThread(kProcess2ThreadKoid1);
    99   process2->AddThread(kProcess2ThreadKoid2);
  100   harness.debug_agent()->InjectProcessForTest(std::move(process2));
  101
  102   reply = {};
  103   remote_api->OnStatus(request, &reply);
  104
▶ 105   ASSERT_EQ(reply.processes.size(), 3u);
  106   EXPECT_EQ(reply.processes[0].process_koid, kProcessKoid1);
  107   EXPECT_EQ(reply.processes[0].process_name, kProcessName1);
  108   ASSERT_EQ(reply.processes[0].threads.size(), 1u);
  109   EXPECT_EQ(reply.processes[0].threads[0].id.process, kProcessKoid1);
  110   EXPECT_EQ(reply.processes[0].threads[0].id.thread, kProcess1ThreadKoid1);
  111
  112   EXPECT_EQ(reply.processes[1].process_koid, kProcessKoid2);
  113   EXPECT_EQ(reply.processes[1].process_name, kProcessName2);
  114   ASSERT_EQ(reply.processes[1].threads.size(), 2u);
  115   EXPECT_EQ(reply.processes[1].threads[0].id.process, kProcessKoid2);
[zxdb]

您也可以使用 frame 指令檢查完整的堆疊追蹤:

[zxdb] frame
  0 testing::UnitTest::AddTestPartResult(…) • gtest.cc:5383
  1 testing::internal::AssertHelper::operator=(…) • gtest.cc:476
▶ 2 debug_agent::DebugAgentTests_OnGlobalStatus_Test::TestBody(…) • debug_agent_unittest.cc:105
  3 testing::internal::HandleSehExceptionsInMethodIfSupported<…>(…) • gtest.cc:2635
  4 testing::internal::HandleExceptionsInMethodIfSupported<…>(…) • gtest.cc:2690
  5 testing::Test::Run(…) • gtest.cc:2710
  6 testing::TestInfo::Run(…) • gtest.cc:2859
  7 testing::TestSuite::Run(…) • gtest.cc:3038
  8 testing::internal::UnitTestImpl::RunAllTests(…) • gtest.cc:5942
  9 testing::internal::HandleSehExceptionsInMethodIfSupported<…>(…) • gtest.cc:2635
  10 testing::internal::HandleExceptionsInMethodIfSupported<…>(…) • gtest.cc:2690
  11 testing::UnitTest::Run(…) • gtest.cc:5506
  12 RUN_ALL_TESTS() • gtest.h:2318
  13 main(…) • run_all_unittests.cc:20
  14…17 «libc startup» (-r expands)
[zxdb]

請注意, 會指向測試的原始碼影格,表示 所有指令都會在這個結構定義中執行您可以選取其他影格 方法是使用 frame 指令,以及堆疊追蹤中的相關數字。

若要找出測試失敗的原因,請列印一些變數以查看測試內容 。reply 框架包含本機變數,應該已 由函式呼叫 remote_api->OnStatus 填入:

[zxdb] print reply
{
  processes = {
    [0] = {
      process_koid = 4660
      process_name = "process-1"
      components = {}
      threads = {
        [0] = {
          id = {process = 4660, thread = 1}
          name = "test thread"
          state = kRunning
          blocked_reason = kNotBlocked
          stack_amount = kNone
          frames = {}
        }
      }
    }
    [1] = {
      process_koid = 22136
      process_name = "process-2"
      components = {}
      threads = {
        [0] = {
          id = {process = 22136, thread = 1}
          name = "test thread"
          state = kRunning
          blocked_reason = kNotBlocked
          stack_amount = kNone
          frames = {}
        }
        [1] = {
          id = {process = 22136, thread = 2}
          name = "test thread"
          state = kRunning
          blocked_reason = kNotBlocked
          stack_amount = kNone
          frames = {}
        }
      }
    }
  }
  limbo = {}
  breakpoints = {}
  filters = {}
}

從輸出結果中,您可以看到 reply 變數已填入某些值 則您需要確保 processes 向量的大小 等於 3。如要查看更多資訊,請列印 reply 的成員變數。 您也可以列印該向量的大小方法 (一般函式呼叫) 目前尚不支援):

[zxdb] print reply.processes
{
  [0] = {
    process_koid = 4660
    process_name = "process-1"
    components = {}
    threads = {
      [0] = {
        id = {process = 4660, thread = 1}
        name = "test thread"
        state = kRunning
        blocked_reason = kNotBlocked
        stack_amount = kNone
        frames = {}
      }
    }
  }
  [1] = {
    process_koid = 22136
    process_name = "process-2"
    components = {}
    threads = {
      [0] = {
        id = {process = 22136, thread = 1}
        name = "test thread"
        state = kRunning
        blocked_reason = kNotBlocked
        stack_amount = kNone
        frames = {}
      }
      [1] = {
        id = {process = 22136, thread = 2}
        name = "test thread"
        state = kRunning
        blocked_reason = kNotBlocked
        stack_amount = kNone
        frames = {}
      }
    }
  }
}
[zxdb] print reply.processes.size()
2

測試的期望似乎有點不正確。您只需要 插入了 2 個模擬程序,但測試預期為 3。您只需要 更新測試,預期 reply.processes 向量的大小 而不是 3。您現在可以使用 quit 關閉 zxdb,然後更新並修正 測試:

[zxdb] quit

<...fx test output continues...>

Failed tests: DebugAgentTests.OnGlobalStatus <-- Failed test case that we debugged.
175 out of 176 attempted tests passed, 2 tests skipped...
fuchsia-pkg://fuchsia.com/debug_agent_unit_tests?hash=3f6d97801bb147034a344e3fe1bb69291a7b690b9d3d075246ddcba59397ac12#meta/debug_agent_unit_tests.cm completed with result: FAILED
Tests failed.

FAILED: fuchsia-pkg://fuchsia.com/debug_agent_unit_tests#meta/debug_agent_unit_tests.cm

找出測試失敗的來源後,您可以修正測試:

-ASSERT_EQ(reply.processes.size(), 3u)
+ASSERT_EQ(reply.processes.size(), 2u)

接著,執行 fx test

fx test --break-on-failure debug_agent_unit_tests

輸出內容應如下所示:

You are using the new fx test, which is currently ready for general use ✅
See details here: https://fuchsia.googlesource.com/fuchsia/+/refs/heads/main/scripts/fxtest/rewrite
To go back to the old fx test, use `fx --enable=legacy_fxtest test`, and please file a bug under b/293917801.

Default flags loaded from /usr/local/google/home/jruthe/.fxtestrc:
[]

Logging all output to: /usr/local/google/home/jruthe/upstream/fuchsia/out/workbench_eng.x64/fxtest-2024-03-25T15:56:31.874893.log.json.gz
Use the `--logpath` argument to specify a log location or `--no-log` to disable

To show all output, specify the `-o/--output` flag.

Found 913 total tests in //out/workbench_eng.x64/tests.json

Plan to run 1 test

Refreshing 1 target
> fx build src/developer/debug/debug_agent:debug_agent_unit_tests host_x64/debug_agent_unit_tests
Use --no-build to skip building

Executing build. Status output suspended.
ninja: Entering directory `/usr/local/google/home/jruthe/upstream/fuchsia/out/workbench_eng.x64'
[22/22](0) STAMP obj/src/developer/debug/debug_agent/debug_agent_unit_tests.stamp

Running 1 test

Starting: fuchsia-pkg://fuchsia.com/debug_agent_unit_tests#meta/debug_agent_unit_tests.cm (NOT HERMETIC)
Command: fx ffx test run --realm /core/testing:system-tests --max-severity-logs WARN --break-on-failure fuchsia-pkg://fuchsia.com/debug_agent_unit_tests?hash=399ff8d9871a6f0d53557c3d7c233cad645061016d44a7855dcea2c7b8af8101#meta/debug_agent_unit_tests.cm
Deleting 1 files at /tmp/tmp8m56ht95: ffx_logs/ffx.log
To keep these files, set --ffx-output-directory.

PASSED: fuchsia-pkg://fuchsia.com/debug_agent_unit_tests#meta/debug_agent_unit_tests.cm

Status: [duration: 16.9s] [tests: PASS: 1 FAIL: 0 SKIP: 0]
  Running 1 tests                      [=====================================================================================================]         100.0%

移除後,zxdb 不會再出現,因為您已成功修正所有測試 失敗!