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s A AAc d| j z S )zReturns the infile = ... line of code for the reader process.
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$ r Y lw xY w)a; A common way to cleanup and fail with useful debug output.
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why: Text to go after "Error from IO process" in the message.
stdout, stderr: standard output and error from the process so
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d yy)an Generic buffered read method test harness to validate EINTR behavior.
Also validates that Python signal handlers are run during the read.
Args:
data_to_write: String to write to the child process for reading
before sending it a signal, confirming the signal was handled,
writing a final newline and closing the infile pipe.
read_and_verify_code: Single "line" of code to read from a file
object named 'infile' and validate the result. This will be
executed as part of a python subprocess fed data_to_write.
i z#data_to_write must fit in pipe buf.z-uz-czXimport signal, sys ;signal.signal(signal.SIGINT, lambda s, f: sys.stderr.write("$\n")) ;z ;z"sys.stderr.write("Worm Sign!\n") ;zinfile.close())stdinr! r" s Worm Sign!
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7 $r zgot = infile.{read_method_name}() ;expected = {expected!r} ;assert got == expected, ("{read_method_name} returned wrong data.\n""got data %r\nexpected %r" % (got, expected))c ` | j d| j j dd y)1readline() must handle signals and not lose data.
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test_readlinez'TestFileIOSignalInterrupt.test_readline s8 .%)%@%@%G%G)3!3 &H &5 6r c d | j d| j j dddg y)2readlines() must handle signals and not lose data. hello
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E 6= 6r r c e Zd ZdZy)CTestFileIOSignalInterrupt_ioNrX rY rZ r r( r r r\ r\ Gr r\ c e Zd ZdZy)PyTestFileIOSignalInterrupt_pyioNr^ r( r r ra ra Gr ra c e Zd Zd Zd Zy) TestBufferedIOSignalInterruptc d| j z S )z?Returns the infile = ... line of code to make a BufferedReader.ziimport %s as io ;infile = io.open(sys.stdin.fileno(), "rb") ;assert isinstance(infile, io.BufferedReader)r r
s r r z9TestBufferedIOSignalInterrupt._generate_infile_setup_code s ? r c ` | j d| j j dd y)z<BufferedReader.read() must handle signals and not lose data.rQ r3 rV rG rJ NrK r
s r rW z*TestBufferedIOSignalInterrupt.test_readall s8 .%)%@%@%G%G)/!3 &H &5 6r N)rX rY rZ r rW r( r r re re s 6r re c e Zd ZdZy) CTestBufferedIOSignalInterruptr] Nr^ r( r r ri ri r_ r ri c e Zd ZdZy) PyTestBufferedIOSignalInterruptrb Nr^ r( r r rk rk rc r rk c $ e Zd Zd Zd Zd Zd Zy)TestTextIOSignalInterruptc d| j z S )z>Returns the infile = ... line of code to make a TextIOWrapper.zimport %s as io ;infile = io.open(sys.stdin.fileno(), encoding="utf-8", newline=None) ;assert isinstance(infile, io.TextIOWrapper)r r
s r r z5TestTextIOSignalInterrupt._generate_infile_setup_code s > r c ` | j d| j j dd y)rE rF r9 zhello, world!
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hello
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