golang.org/x/exp@v0.0.0-20240506185415-9bf2ced13842/trace/testdata/README.md (about)

     1  # Trace test data
     2  
     3  ## Trace golden tests
     4  
     5  Trace tests can be generated by running
     6  
     7  ```
     8  go generate .
     9  ```
    10  
    11  with the relevant toolchain in this directory.
    12  
    13  This will put the tests into a `tests` directory where the trace reader
    14  tests will find them.
    15  
    16  A subset of tests can be regenerated by specifying a regexp pattern for
    17  the names of tests to generate in the `GOTRACETEST` environment
    18  variable.
    19  Test names are defined as the name of the `.go` file that generates the
    20  trace, but with the `.go` extension removed.
    21  
    22  ## Trace test programs
    23  
    24  The trace test programs in the `testprog` directory generate traces to
    25  stdout.
    26  Otherwise they're just normal programs.
    27  
    28  ## Trace debug commands
    29  
    30  The `cmd` directory contains helpful tools for debugging traces.
    31  
    32  * `gotraceraw` parses traces without validation.
    33    It can produce a text version of the trace wire format, or convert
    34    the text format back into bytes.
    35  * `gotracevalidate` parses traces and validates them.
    36    It performs more rigorous checks than the parser does on its own,
    37    which helps for debugging the parser as well.
    38    In fact, it performs the exact same checks that the tests do.