• d-bugmail puremagic.com (41/41) Aug 12 2020 https://issues.dlang.org/show_bug.cgi?id=21148

d-bugmail puremagic.com writes:

https://issues.dlang.org/show_bug.cgi?id=21148

          Issue ID: 21148
           Summary: Semaphoreci:
                    core.exception.AssertError std/file.d(1929): unittest
                    failure
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P1
         Component: phobos
          Assignee: nobody puremagic.com
          Reporter: bugzilla digitalmars.com

This randomly pops up when running semaphoreci.

The log file says:

---------
****** FAIL debug64 std.file
core.exception.AssertError std/file.d(1929): unittest failure
---------

Looking at std/file.d it's clearly a timing issue:

----
 system unittest
{
    import core.thread;

    if (exists(deleteme))
        remove(deleteme);

    SysTime lastTime;
    foreach (n; 0 .. 3)
    {
        write(deleteme, "a");
        auto time = timeLastModified(deleteme);
        remove(deleteme);
        assert(time != lastTime);
        lastTime = time;
        Thread.sleep(10.msecs);
    }
}
-----

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