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How to use assert_is method in Testify

Best Python code snippet using Testify_python

test_formatters.py

Source:test_formatters.py

...85def test_for_type():86    f = PlainTextFormatter()87    88    # initial return, None89    nt.assert_is(f.for_type(C, foo_printer), None)90    # no func queries91    nt.assert_is(f.for_type(C), foo_printer)92    # shouldn't change anything93    nt.assert_is(f.for_type(C), foo_printer)94    # None should do the same95    nt.assert_is(f.for_type(C, None), foo_printer)96    nt.assert_is(f.for_type(C, None), foo_printer)97def test_for_type_string():98    f = PlainTextFormatter()99    100    mod = C.__module__101    102    type_str = '%s.%s' % (C.__module__, 'C')103    104    # initial return, None105    nt.assert_is(f.for_type(type_str, foo_printer), None)106    # no func queries107    nt.assert_is(f.for_type(type_str), foo_printer)108    nt.assert_in(_mod_name_key(C), f.deferred_printers)109    nt.assert_is(f.for_type(C), foo_printer)110    nt.assert_not_in(_mod_name_key(C), f.deferred_printers)111    nt.assert_in(C, f.type_printers)112def test_for_type_by_name():113    f = PlainTextFormatter()114    115    mod = C.__module__116    117    # initial return, None118    nt.assert_is(f.for_type_by_name(mod, 'C', foo_printer), None)119    # no func queries120    nt.assert_is(f.for_type_by_name(mod, 'C'), foo_printer)121    # shouldn't change anything122    nt.assert_is(f.for_type_by_name(mod, 'C'), foo_printer)123    # None should do the same124    nt.assert_is(f.for_type_by_name(mod, 'C', None), foo_printer)125    nt.assert_is(f.for_type_by_name(mod, 'C', None), foo_printer)126def test_lookup():127    f = PlainTextFormatter()128    129    f.for_type(C, foo_printer)130    nt.assert_is(f.lookup(C()), foo_printer)131    with nt.assert_raises(KeyError):132        f.lookup(A())133def test_lookup_string():134    f = PlainTextFormatter()135    type_str = '%s.%s' % (C.__module__, 'C')136    137    f.for_type(type_str, foo_printer)138    nt.assert_is(f.lookup(C()), foo_printer)139    # should move from deferred to imported dict140    nt.assert_not_in(_mod_name_key(C), f.deferred_printers)141    nt.assert_in(C, f.type_printers)142def test_lookup_by_type():143    f = PlainTextFormatter()144    f.for_type(C, foo_printer)145    nt.assert_is(f.lookup_by_type(C), foo_printer)146    type_str = '%s.%s' % (C.__module__, 'C')147    with nt.assert_raises(KeyError):148        f.lookup_by_type(A)149def test_lookup_by_type_string():150    f = PlainTextFormatter()151    type_str = '%s.%s' % (C.__module__, 'C')152    f.for_type(type_str, foo_printer)153    154    # verify insertion155    nt.assert_in(_mod_name_key(C), f.deferred_printers)156    nt.assert_not_in(C, f.type_printers)157    158    nt.assert_is(f.lookup_by_type(type_str), foo_printer)159    # lookup by string doesn't cause import160    nt.assert_in(_mod_name_key(C), f.deferred_printers)161    nt.assert_not_in(C, f.type_printers)162    163    nt.assert_is(f.lookup_by_type(C), foo_printer)164    # should move from deferred to imported dict165    nt.assert_not_in(_mod_name_key(C), f.deferred_printers)166    nt.assert_in(C, f.type_printers)167def test_in_formatter():168    f = PlainTextFormatter()169    f.for_type(C, foo_printer)170    type_str = '%s.%s' % (C.__module__, 'C')171    nt.assert_in(C, f)172    nt.assert_in(type_str, f)173def test_string_in_formatter():174    f = PlainTextFormatter()175    type_str = '%s.%s' % (C.__module__, 'C')176    f.for_type(type_str, foo_printer)177    nt.assert_in(type_str, f)178    nt.assert_in(C, f)179def test_pop():180    f = PlainTextFormatter()181    f.for_type(C, foo_printer)182    nt.assert_is(f.lookup_by_type(C), foo_printer)183    nt.assert_is(f.pop(C, None), foo_printer)184    f.for_type(C, foo_printer)185    nt.assert_is(f.pop(C), foo_printer)186    with nt.assert_raises(KeyError):187        f.lookup_by_type(C)188    with nt.assert_raises(KeyError):189        f.pop(C)190    with nt.assert_raises(KeyError):191        f.pop(A)192    nt.assert_is(f.pop(A, None), None)193def test_pop_string():194    f = PlainTextFormatter()195    type_str = '%s.%s' % (C.__module__, 'C')196    197    with nt.assert_raises(KeyError):198        f.pop(type_str)199    200    f.for_type(type_str, foo_printer)201    f.pop(type_str)202    with nt.assert_raises(KeyError):203        f.lookup_by_type(C)204    with nt.assert_raises(KeyError):205        f.pop(type_str)206    f.for_type(C, foo_printer)207    nt.assert_is(f.pop(type_str, None), foo_printer)208    with nt.assert_raises(KeyError):209        f.lookup_by_type(C)210    with nt.assert_raises(KeyError):211        f.pop(type_str)212    nt.assert_is(f.pop(type_str, None), None)213    214def test_error_method():215    f = HTMLFormatter()216    class BadHTML(object):217        def _repr_html_(self):218            raise ValueError("Bad HTML")219    bad = BadHTML()220    with capture_output() as captured:221        result = f(bad)222    nt.assert_is(result, None)223    nt.assert_in("Traceback", captured.stdout)224    nt.assert_in("Bad HTML", captured.stdout)225    nt.assert_in("_repr_html_", captured.stdout)226def test_nowarn_notimplemented():227    f = HTMLFormatter()228    class HTMLNotImplemented(object):229        def _repr_html_(self):230            raise NotImplementedError231    h = HTMLNotImplemented()232    with capture_output() as captured:233        result = f(h)234    nt.assert_is(result, None)235    nt.assert_equal("", captured.stderr)236    nt.assert_equal("", captured.stdout)237def test_warn_error_for_type():238    f = HTMLFormatter()239    f.for_type(int, lambda i: name_error)240    with capture_output() as captured:241        result = f(5)242    nt.assert_is(result, None)243    nt.assert_in("Traceback", captured.stdout)244    nt.assert_in("NameError", captured.stdout)245    nt.assert_in("name_error", captured.stdout)246def test_error_pretty_method():247    f = PlainTextFormatter()248    class BadPretty(object):249        def _repr_pretty_(self):250            return "hello"251    bad = BadPretty()252    with capture_output() as captured:253        result = f(bad)254    nt.assert_is(result, None)255    nt.assert_in("Traceback", captured.stdout)256    nt.assert_in("_repr_pretty_", captured.stdout)257    nt.assert_in("given", captured.stdout)258    nt.assert_in("argument", captured.stdout)259def test_bad_repr_traceback():260    f = PlainTextFormatter()261    bad = BadRepr()262    with capture_output() as captured:263        result = f(bad)264    # catches error, returns None265    nt.assert_is(result, None)266    nt.assert_in("Traceback", captured.stdout)267    nt.assert_in("__repr__", captured.stdout)268    nt.assert_in("ValueError", captured.stdout)269class MakePDF(object):270    def _repr_pdf_(self):271        return 'PDF'272def test_pdf_formatter():273    pdf = MakePDF()274    f = PDFFormatter()275    nt.assert_equal(f(pdf), 'PDF')276def test_print_method_bound():277    f = HTMLFormatter()278    class MyHTML(object):279        def _repr_html_(self):280            return "hello"281    with capture_output() as captured:282        result = f(MyHTML)283    nt.assert_is(result, None)284    nt.assert_not_in("FormatterWarning", captured.stderr)285    with capture_output() as captured:286        result = f(MyHTML())287    nt.assert_equal(result, "hello")288    nt.assert_equal(captured.stderr, "")289def test_print_method_weird():290    class TextMagicHat(object):291        def __getattr__(self, key):292            return key293    f = HTMLFormatter()294    295    text_hat = TextMagicHat()296    nt.assert_equal(text_hat._repr_html_, '_repr_html_')297    with capture_output() as captured:298        result = f(text_hat)299    300    nt.assert_is(result, None)301    nt.assert_not_in("FormatterWarning", captured.stderr)302    class CallableMagicHat(object):303        def __getattr__(self, key):304            return lambda : key305    306    call_hat = CallableMagicHat()307    with capture_output() as captured:308        result = f(call_hat)309    310    nt.assert_equal(result, None)311    class BadReprArgs(object):312        def _repr_html_(self, extra, args):313            return "html"314    315    bad = BadReprArgs()316    with capture_output() as captured:317        result = f(bad)318    319    nt.assert_is(result, None)320    nt.assert_not_in("FormatterWarning", captured.stderr)321def test_format_config():322    """config objects don't pretend to support fancy reprs with lazy attrs"""323    f = HTMLFormatter()324    cfg = Config()325    with capture_output() as captured:326        result = f(cfg)327    nt.assert_is(result, None)328    nt.assert_equal(captured.stderr, "")329    with capture_output() as captured:330        result = f(Config)331    nt.assert_is(result, None)332    nt.assert_equal(captured.stderr, "")333def test_pretty_max_seq_length():334    f = PlainTextFormatter(max_seq_length=1)335    lis = list(range(3))336    text = f(lis)337    nt.assert_equal(text, '[0, ...]')338    f.max_seq_length = 0339    text = f(lis)340    nt.assert_equal(text, '[0, 1, 2]')341    text = f(list(range(1024)))342    lines = text.splitlines()343    nt.assert_equal(len(lines), 1024)344def test_ipython_display_formatter():345    """Objects with _ipython_display_ defined bypass other formatters"""...

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