850fa9913b2f24729cd4c58b4037697ab028c52a,bokeh/command/subcommands/tests/test_serve.py,,test_actual_port_printed_out,#,227

Before Change

            line = p.stdout.readline()
            print("child stdout>", line)
            m = pat.search(line.decode())
            if m is not None:
                break
        else:
            pytest.fail("no matching log line in process output")
        port = int(m.group(1))
        assert port > 0

After Change

    with run_bokeh_serve(["--port", "0"]) as p:
        flags = fcntl(p.stdout, F_GETFL)
        fcntl(p.stdout, F_SETFL, flags | O_NONBLOCK)
        sleep(2)
        o = read(p.stdout.fileno(), 100*1024)
        m = pat.search(o.decode())
        if m is None:
            pytest.fail("no matching log line in process output")

Instances