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How to use redirect_io method in autotest

Best Python code snippet using autotest_python

test_io.py

Source:test_io.py

1#2# Unit Tests for util/*_io3#4#5import os6import sys7from os.path import abspath, dirname8pkgdir = dirname(abspath(__file__)) + os.sep + ".." + os.sep + ".."9currdir = dirname(abspath(__file__)) + os.sep10import six11import pyutilib.th as unittest12import pyutilib.misc13def filter1(str):14    return True15def filter2(str):16    return ""17def filter3(str):18    str = str.replace('THERE', 'HERE')19    str = str.replace('[4, 5, 6]', '[1,2,3]')20    return str21class IODebug(unittest.TestCase):22    def test_redirect1(self):23        # Verify that IO redirection works24        pyutilib.misc.setup_redirect(currdir + "redirect_io.out")25        print("HERE")26        print([1, 2, 3])27        #28        # Force a flush to ensure code coverage29        #30        sys.stdout.flush()31        pyutilib.misc.reset_redirect()32        self.assertFalse(33            pyutilib.misc.comparison.compare_file(34                currdir + "redirect_io.out", currdir + "redirect_io1.txt")[0])35        self.assertFalse(36            pyutilib.misc.comparison.compare_file(37                currdir + "redirect_io.out",38                currdir + "redirect_io2.txt",39                filter=filter1)[0])40        self.assertFalse(41            pyutilib.misc.comparison.compare_file(42                currdir + "redirect_io.out",43                currdir + "redirect_io2.txt",44                filter=filter2)[0])45        os.remove(currdir + "redirect_io.out")46    def test_redirect2(self):47        # Verify that IO redirection will create an empty file is no output is generated48        pyutilib.misc.setup_redirect(currdir + "redirect_io.out")49        pyutilib.misc.reset_redirect()50        if not os.path.exists(currdir + "redirect_io.out"):51            self.fail("Redirection did not create an empty file.")52        self.assertFalse(53            pyutilib.misc.comparison.compare_file(54                currdir + "redirect_io.out", currdir + "redirect_io2.txt")[0])55        os.remove(currdir + "redirect_io.out")56    def test_redirect3(self):57        # Verify that IO redirection can be nested58        pyutilib.misc.setup_redirect(currdir + "redirect_io1.out")59        print("HERE")60        pyutilib.misc.setup_redirect(currdir + "redirect_io3.out")61        print("THERE")62        print([4, 5, 6])63        pyutilib.misc.reset_redirect()64        print([1, 2, 3])65        #66        # Force a flush to ensure code coverage67        #68        sys.stdout.flush()69        pyutilib.misc.reset_redirect()70        self.assertFalse(71            pyutilib.misc.comparison.compare_file(72                currdir + "redirect_io1.out", currdir + "redirect_io1.txt")[0])73        os.remove(currdir + "redirect_io1.out")74        self.assertFalse(75            pyutilib.misc.comparison.compare_file(76                currdir + "redirect_io3.out", currdir + "redirect_io3.txt")[0])77        self.assertFalse(78            pyutilib.misc.comparison.compare_file(79                currdir + "redirect_io3.out",80                currdir + "redirect_io3.txt",81                filter=filter3)[0])82        os.remove(currdir + "redirect_io3.out")83    def test_redirect4(self):84        # Verify that IO redirection works with file-like objects85        output = six.StringIO()86        pyutilib.misc.setup_redirect(output)87        print("HERE")88        print([1, 2, 3])89        #90        # Force a flush to ensure code coverage91        #92        sys.stdout.flush()93        pyutilib.misc.reset_redirect()94        self.assertEqual(output.getvalue(), "HERE\n[1, 2, 3]\n")95    def test_format_io(self):96        # Test that formated IO looks correct.97        pyutilib.misc.setup_redirect(currdir + "format_io.out")98        print(pyutilib.misc.format_io(0.0))99        print(pyutilib.misc.format_io(0))100        print(pyutilib.misc.format_io(1e-1))101        print(pyutilib.misc.format_io(1e+1))102        print(pyutilib.misc.format_io(1e-9))103        print(pyutilib.misc.format_io(1e+9))104        print(pyutilib.misc.format_io(1e-99))105        print(pyutilib.misc.format_io(1e+99))106        print(pyutilib.misc.format_io(1e-100))107        print(pyutilib.misc.format_io(1e+100))108        print(pyutilib.misc.format_io(-1e-1))109        print(pyutilib.misc.format_io(-1e+1))110        print(pyutilib.misc.format_io(-1e-9))111        print(pyutilib.misc.format_io(-1e+9))112        print(pyutilib.misc.format_io(-1e-99))113        print(pyutilib.misc.format_io(-1e+99))114        print(pyutilib.misc.format_io(-1e-100))115        print(pyutilib.misc.format_io(-1e+100))116        print(pyutilib.misc.format_io('string'))117        pyutilib.misc.reset_redirect()118        self.assertFalse(119            pyutilib.misc.comparison.compare_file(currdir + "format_io.out",120                                                  currdir + "format_io.txt")[0])121        os.remove(currdir + "format_io.out")122    def test_format_float_err1(self):123        # Test that errors are generated for non floats124        try:125            pyutilib.misc.format_float('1')126            self.fail("Should have thrown a TypeError exception")127        except TypeError:128            pass129    def test_indenter_write(self):130        output = six.StringIO()131        indenter = pyutilib.misc.StreamIndenter(output, "X ")132        indenter.write("foo")133        self.assertEqual(output.getvalue(), "X foo")134        indenter.write("\n")135        self.assertEqual(output.getvalue(), "X foo\n")136        indenter.write("foo\n")137        self.assertEqual(output.getvalue(), "X foo\nX foo\n")138        indenter.write("")139        self.assertEqual(output.getvalue(), "X foo\nX foo\n")140        indenter.write("\n")141        self.assertEqual(output.getvalue(), "X foo\nX foo\nX\n")142        indenter.write("baz\nbin")143        self.assertEqual(output.getvalue(), "X foo\nX foo\nX\nX baz\nX bin")144        indenter.write("a\nb\n\nc\n")145        self.assertEqual(output.getvalue(),146                         "X foo\nX foo\nX\nX baz\nX bina\nX b\nX\nX c\n")147        self.assertEqual(indenter.closed, False)148        indenter.close()149        self.assertEqual(indenter.closed, True)150    def test_indenter_writelines(self):151        output = six.StringIO()152        indenter = pyutilib.misc.StreamIndenter(output, "X")153        indenter.writelines(["foo"])154        self.assertEqual(output.getvalue(), "Xfoo")155        indenter.writelines(["foo\n", "bar\n"])156        self.assertEqual(output.getvalue(), "Xfoofoo\nXbar\n")157        indenter.writelines(["", ""])158        self.assertEqual(output.getvalue(), "Xfoofoo\nXbar\n")159        self.assertEqual(indenter.closed, False)160        indenter.close()161        self.assertEqual(indenter.closed, True)162    def test_redirected_stdout(self):163        with pyutilib.misc.capture_output() as output:164            print("test1")165            print("test2")166        self.assertEqual(output.getvalue(), "test1\ntest2\n")167    def test_redirected_stdout_with_arg(self):168        stream = six.StringIO()169        stream.write("before\n")170        with pyutilib.misc.capture_output(stream) as output:171            print("test1")172            print("test2")173        self.assertEqual(output.getvalue(), "before\ntest1\ntest2\n")174if __name__ == "__main__":...

utils.py

Source:utils.py

...65    setattr(obj, attribute, new_value)66    yield67    setattr(obj, attribute, old_value)68@contextlib.contextmanager69def redirect_io(stream: str, new_stream):70    """Redirect stdio streams to a custom stream."""71    old_stream = getattr(sys, stream)72    setattr(sys, stream, new_stream)73    yield74    setattr(sys, stream, old_stream)75@contextlib.contextmanager76def change_cwd(new_cwd):77    """Change working directory before running code."""78    os.chdir(new_cwd)79    yield80    os.chdir(SERVER_CWD)81def _run_module(82    module: str, argv: Sequence[str], use_stdin: bool, source: str = None83) -> RunResult:84    """Runs as a module."""85    str_output = CustomIO("<stdout>", encoding="utf-8")86    str_error = CustomIO("<stderr>", encoding="utf-8")87    try:88        with substitute_attr(sys, "argv", argv):89            with redirect_io("stdout", str_output):90                with redirect_io("stderr", str_error):91                    if use_stdin and source is not None:92                        str_input = CustomIO("<stdin>", encoding="utf-8", newline="\n")93                        with redirect_io("stdin", str_input):94                            str_input.write(source)95                            str_input.seek(0)96                            runpy.run_module(module, run_name="__main__")97                    else:98                        runpy.run_module(module, run_name="__main__")99    except SystemExit:100        pass101    return RunResult(str_output.get_value(), str_error.get_value())102def run_module(103    module: str, argv: Sequence[str], use_stdin: bool, cwd: str, source: str = None104) -> RunResult:105    """Runs as a module."""106    with CWD_LOCK:107        if is_same_path(os.getcwd(), cwd):108            return _run_module(module, argv, use_stdin, source)109        with change_cwd(cwd):110            return _run_module(module, argv, use_stdin, source)111def run_path(112    argv: Sequence[str], use_stdin: bool, cwd: str, source: str = None113) -> RunResult:114    """Runs as an executable."""115    if use_stdin:116        with subprocess.Popen(117            argv,118            encoding="utf-8",119            stdout=subprocess.PIPE,120            stderr=subprocess.PIPE,121            stdin=subprocess.PIPE,122            cwd=cwd,123        ) as process:124            return RunResult(*process.communicate(input=source))125    else:126        result = subprocess.run(127            argv,128            encoding="utf-8",129            stdout=subprocess.PIPE,130            stderr=subprocess.PIPE,131            check=False,132            cwd=cwd,133        )134        return RunResult(result.stdout, result.stderr)135def run_api(136    callback: Callable[[Sequence[str], CustomIO, CustomIO, CustomIO | None], None],137    argv: Sequence[str],138    use_stdin: bool,139    cwd: str,140    source: str = None,141) -> RunResult:142    """Run a API."""143    with CWD_LOCK:144        if is_same_path(os.getcwd(), cwd):145            return _run_api(callback, argv, use_stdin, source)146        with change_cwd(cwd):147            return _run_api(callback, argv, use_stdin, source)148def _run_api(149    callback: Callable[[Sequence[str], CustomIO, CustomIO, CustomIO | None], None],150    argv: Sequence[str],151    use_stdin: bool,152    source: str = None,153) -> RunResult:154    str_output = CustomIO("<stdout>", encoding="utf-8")155    str_error = CustomIO("<stderr>", encoding="utf-8")156    try:157        with substitute_attr(sys, "argv", argv):158            with redirect_io("stdout", str_output):159                with redirect_io("stderr", str_error):160                    if use_stdin and source is not None:161                        str_input = CustomIO("<stdin>", encoding="utf-8", newline="\n")162                        with redirect_io("stdin", str_input):163                            str_input.write(source)164                            str_input.seek(0)165                            callback(argv, str_output, str_error, str_input)166                    else:167                        callback(argv, str_output, str_error)168    except SystemExit:169        pass...

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