pypy/interpreter/test/test_app_main.py::TestInteraction::()::test_unbuffered

self = <pypy.interpreter.test.test_app_main.TestInteraction instance at 0x000000012a284460>

    def test_unbuffered(self):
        # In Python3, -u affects the "binary layer" of sys.stdout.
        line = 'import os,sys;sys.stdout.buffer.write(str(789).encode());os.read(0,1)'
        child = self.spawn(['-u', '-c', line])
>       child.expect('789')    # expect to see it before the timeout hits

interpreter/test/test_app_main.py:613: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
../virt_test/site-packages/pexpect/spawnbase.py:355: in expect
    timeout, searchwindowsize, async_)
../virt_test/site-packages/pexpect/spawnbase.py:383: in expect_list
    return exp.expect_loop(timeout)
../virt_test/site-packages/pexpect/expect.py:179: in expect_loop
    return self.eof(e)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = <pexpect.expect.Expecter object at 0x0000000152b78838>
err = EOF('End Of File (EOF). Empty string style platform.',)

    def eof(self, err=None):
        spawn = self.spawn
    
        spawn.before = spawn._before.getvalue()
        spawn._buffer = spawn.buffer_type()
        spawn._before = spawn.buffer_type()
        spawn.after = EOF
        index = self.searcher.eof_index
        if index >= 0:
            spawn.match = EOF
            spawn.match_index = index
            return index
        else:
            spawn.match = None
            spawn.match_index = None
            msg = str(spawn)
            msg += '\nsearcher: %s' % self.searcher
            if err is not None:
                msg = str(err) + '\n' + msg
    
            exc = EOF(msg)
            exc.__cause__ = None # in Python 3.x we can use "raise exc from None"
>           raise exc
E           EOF: End Of File (EOF). Empty string style platform.
E           <pexpect.pty_spawn.spawn object at 0x0000000131107a60>
E           command: /opt/homebrew/bin/python3.12
E           args: ['/opt/homebrew/bin/python3.12', '/Users/matti/build-worker-arm64/own-macos-arm64/build/pypy/interpreter/app_main.py', '-u', '-c', 'import os,sys;sys.stdout.buffer.write(str(789).encode());os.read(0,1)']
E           buffer (last 100 chars): ''
E           before (last 100 chars): ''
E           after: <class 'pexpect.exceptions.EOF'>
E           match: None
E           match_index: None
E           exitstatus: None
E           flag_eof: True
E           pid: 18165
E           child_fd: 197
E           closed: False
E           timeout: 10
E           delimiter: <class 'pexpect.exceptions.EOF'>
E           logfile: <_pytest.capture.EncodedFile object at 0x00000001301d3f30>
E           logfile_read: None
E           logfile_send: None
E           maxread: 2000
E           ignorecase: False
E           searchwindowsize: None
E           delaybeforesend: 0.05
E           delayafterclose: 0.1
E           delayafterterminate: 0.1
E           searcher: searcher_re:
E               0: re.compile('789')

../virt_test/site-packages/pexpect/expect.py:122: EOF
---------- Captured stdout call ----------
SPAWN: /opt/homebrew/bin/python3.12 /Users/matti/build-worker-arm64/own-macos-arm64/build/pypy/interpreter/app_main.py -u -c import os,sys;sys.stdout.buffer.write(str(789).encode());os.read(0,1) {'env': None, 'timeout': 10}

builder: own-macos-arm64 build #1352+

test: pypy/interpreter/test/test_app_main.py::TestInteraction::()::test_unbuffered