Unlock 30% off on Manual Testing Annual Plans this Holiday Season.

Copied to Clipboard!

How to use get_function method in Testify

Best Python code snippet using Testify_python

test_stub.py

Source:test_stub.py

1from pytest import raises2from io import StringIO3from pygenstub import get_stub4_INDENT = " " * 45def get_function(6    name, desc="Do foo.", params=None, ptypes=None, rtype=None, decorators=None, body="pass"7):8    code = StringIO()9    if decorators is not None:10        code.write("\n".join(decorators) + "\n")11    pstr = ", ".join(params) if params is not None else ""12    code.write("def %(name)s(%(p)s):\n" % {"name": name, "p": pstr})13    if desc:14        code.write(_INDENT + '"""%(desc)s\n\n' % {"desc": desc})15        tstr = ", ".join(ptypes) if ptypes is not None else ""16        if rtype is not None:17            code.write(_INDENT + ":sig: (%(t)s) -> %(rtype)s\n" % {"t": tstr, "rtype": rtype})18        code.write(_INDENT + '"""\n')19    code.write(_INDENT + body + "\n")20    return code.getvalue()21def get_class(name, bases=None, desc="A foo.", sig=None, methods=None, classvars=None):22    code = StringIO()23    bstr = ("(" + ", ".join(bases) + ")") if bases is not None else ""24    code.write("class %(name)s%(bases)s:\n" % {"name": name, "bases": bstr})25    if desc is not None:26        code.write(_INDENT + '"""%(desc)s\n\n' % {"desc": desc})27        if sig is not None:28            code.write("\n" + _INDENT + ":sig: %(sig)s\n" % {"sig": sig})29    code.write(_INDENT + '"""\n')30    if classvars is not None:31        for classvar in classvars:32            code.write(_INDENT + classvar + "\n")33    if methods is not None:34        for method in methods:35            for line in method.splitlines():36                code.write(_INDENT + line + "\n")37    else:38        code.write(_INDENT + "pass\n")39    return code.getvalue()40def test_if_no_docstring_then_stub_should_be_empty():41    code = get_function("f", desc="")42    assert get_stub(code) == ""43def test_if_no_sig_then_stub_should_be_empty():44    code = get_function("f")45    assert get_stub(code) == ""46def test_if_returns_none_then_stub_should_return_none():47    code = get_function("f", rtype="None")48    assert get_stub(code) == "def f() -> None: ...\n"49def test_if_returns_builtin_then_stub_should_return_builtin():50    code = get_function("f", rtype="int")51    assert get_stub(code) == "def f() -> int: ...\n"52def test_if_returns_from_imported_then_stub_should_include_import():53    code = "from x import A\n"54    code += "\n\n" + get_function("f", rtype="A")55    assert get_stub(code) == "from x import A\n\ndef f() -> A: ...\n"56def test_if_returns_from_as_imported_then_stub_should_include_import():57    code = "from x import A as B\n"58    code += "\n\n" + get_function("f", rtype="B")59    assert get_stub(code) == "from x import A as B\n\ndef f() -> B: ...\n"60def test_stub_should_exclude_unused_import():61    code = "from x import A, B\n"62    code += "\n\n" + get_function("f", rtype="A")63    assert get_stub(code) == "from x import A\n\ndef f() -> A: ...\n"64def test_if_returns_imported_qualified_then_stub_should_include_import():65    code = "import x\n"66    code += "\n\n" + get_function("f", rtype="x.A")67    assert get_stub(code) == "import x\n\ndef f() -> x.A: ...\n"68def test_if_returns_as_imported_qualified_then_stub_should_include_import():69    code = "import x as y\n"70    code += "\n\n" + get_function("f", rtype="y.A")71    assert get_stub(code) == "import x as y\n\ndef f() -> y.A: ...\n"72def test_if_returns_from_imported_qualified_then_stub_should_include_import():73    code = "from x import y\n"74    code += "\n\n" + get_function("f", rtype="y.A")75    assert get_stub(code) == "from x import y\n\ndef f() -> y.A: ...\n"76def test_if_returns_relative_imported_qualified_then_stub_should_include_import():77    code = "from . import x\n"78    code += "\n\n" + get_function("f", rtype="x.A")79    assert get_stub(code) == "from . import x\n\ndef f() -> x.A: ...\n"80def test_if_returns_unimported_qualified_then_stub_should_generate_import():81    code = get_function("f", rtype="x.y.A")82    assert get_stub(code) == "import x.y\n\ndef f() -> x.y.A: ...\n"83def test_if_returns_imported_typing_then_stub_should_include_import():84    code = "from typing import List\n"85    code += "\n\n" + get_function("f", rtype="List")86    assert get_stub(code) == "from typing import List\n\ndef f() -> List: ...\n"87def test_if_returns_unimported_typing_then_stub_should_generate_import():88    code = get_function("f", rtype="List")89    assert get_stub(code) == "from typing import List\n\ndef f() -> List: ...\n"90def test_if_returns_qualified_typing_then_stub_should_return_qualified_typing():91    code = get_function("f", rtype="List[str]")92    assert get_stub(code) == "from typing import List\n\ndef f() -> List[str]: ...\n"93def test_if_returns_multiple_typing_then_stub_should_generate_multiple_import():94    code = get_function("f", rtype="Dict[str, Any]")95    assert get_stub(code) == "from typing import Any, Dict\n\ndef f() -> Dict[str, Any]: ...\n"96def test_if_returns_unknown_type_should_raise_error():97    code = get_function("f", rtype="Foo")98    with raises(ValueError) as e:99        get_stub(code)100    assert "unresolved types: Foo" in str(e)101def test_if_one_param_then_stub_should_have_one_param():102    code = get_function("f", params=["i"], ptypes=["int"], rtype="None")103    assert get_stub(code) == "def f(i: int) -> None: ...\n"104def test_if_multiple_params_then_stub_should_have_multiple_params():105    code = get_function("f", params=["i", "s"], ptypes=["int", "str"], rtype="None")106    assert get_stub(code) == "def f(i: int, s: str) -> None: ...\n"107def test_if_param_type_imported_then_stub_should_include_import():108    code = "from x import A\n"109    code += "\n\n" + get_function("f", params=["a"], ptypes=["A"], rtype="None")110    assert get_stub(code) == "from x import A\n\ndef f(a: A) -> None: ...\n"111def test_if_param_type_from_imported_then_stub_should_include_import():112    code = "from x import A\n"113    code += "\n\n" + get_function("f", params=["a"], ptypes=["A"], rtype="None")114    assert get_stub(code) == "from x import A\n\ndef f(a: A) -> None: ...\n"115def test_if_param_type_imported_qualified_then_stub_should_include_import():116    code = "import x\n"117    code += "\n\n" + get_function("f", params=["a"], ptypes=["x.A"], rtype="None")118    assert get_stub(code) == "import x\n\ndef f(a: x.A) -> None: ...\n"119def test_if_param_type_from_imported_qualified_then_stub_should_include_import():120    code = "from x import y\n"121    code += get_function("f", params=["a"], ptypes=["y.A"], rtype="None")122    assert get_stub(code) == "from x import y\n\ndef f(a: y.A) -> None: ...\n"123def test_if_param_type_relative_imported_qualified_then_stub_should_include_import():124    code = "from . import x\n"125    code += "\n\n" + get_function("f", params=["a"], ptypes=["x.A"], rtype="None")126    assert get_stub(code) == "from . import x\n\ndef f(a: x.A) -> None: ...\n"127def test_if_param_type_unimported_qualified_then_stub_should_generate_import():128    code = get_function("f", params=["a"], ptypes=["x.y.A"], rtype="None")129    assert get_stub(code) == "import x.y\n\ndef f(a: x.y.A) -> None: ...\n"130def test_if_param_type_imported_typing_then_stub_should_include_import():131    code = "from typing import List\n"132    code += "\n\n" + get_function("f", params=["l"], ptypes=["List"], rtype="None")133    assert get_stub(code) == "from typing import List\n\ndef f(l: List) -> None: ...\n"134def test_if_param_type_unimported_typing_then_stub_should_include_import():135    code = get_function("f", params=["l"], ptypes=["List"], rtype="None")136    assert get_stub(code) == "from typing import List\n\ndef f(l: List) -> None: ...\n"137def test_if_param_type_qualified_typing_then_stub_should_include_qualified_typing():138    code = get_function("f", params=["ls"], ptypes=["List[str]"], rtype="None")139    assert get_stub(code) == "from typing import List\n\ndef f(ls: List[str]) -> None: ...\n"140def test_if_param_type_multiple_typing_then_stub_should_include_multiple_import():141    code = get_function("f", params=["d"], ptypes=["Dict[str, Any]"], rtype="None")142    assert (143        get_stub(code)144        == "from typing import Any, Dict\n\ndef f(d: Dict[str, Any]) -> None: ...\n"145    )146def test_if_param_type_unknown_should_raise_error():147    code = get_function("f", params=["i"], ptypes=["Foo"], rtype="None")148    with raises(ValueError) as e:149        get_stub(code)150    assert "unresolved types: Foo" in str(e)151def test_if_param_has_default_then_stub_should_include_ellipses():152    code = get_function("f", params=["i=0"], ptypes=["Optional[int]"], rtype="None")153    assert (154        get_stub(code)155        == "from typing import Optional\n\ndef f(i: Optional[int] = ...) -> None: ...\n"156    )157def test_stub_should_ignore_varargs_type():158    code = get_function("f", params=["i", "*args"], ptypes=["int"], rtype="None")159    assert get_stub(code) == "def f(i: int, *args) -> None: ...\n"160def test_stub_should_ignore_kwargs_type():161    code = get_function("f", params=["i", "**kwargs"], ptypes=["int"], rtype="None")162    assert get_stub(code) == "def f(i: int, **kwargs) -> None: ...\n"163def test_stub_should_ignore_vararg_and_kwargs_types():164    code = get_function("f", params=["i", "*args", "**kwargs"], ptypes=["int"], rtype="None")165    assert get_stub(code) == "def f(i: int, *args, **kwargs) -> None: ...\n"166def test_stub_should_honor_kwonly_args():167    code = get_function("f", params=["i", "*", "j"], ptypes=["int", "int"], rtype="None")168    assert get_stub(code) == "def f(i: int, *, j: int) -> None: ...\n"169def test_stub_should_honor_kwonly_args_with_default():170    code = get_function(171        "f", params=["i", "*", "j=0"], ptypes=["int", "Optional[int]"], rtype="None"172    )173    assert (174        get_stub(code)175        == "from typing import Optional\n\ndef f(i: int, *, j: Optional[int] = ...) -> None: ...\n"  # noqa: E501176    )177def test_missing_types_should_raise_error():178    code = get_function("f", params=["i", "j"], ptypes=["int"], rtype="None")179    with raises(ValueError) as e:180        get_stub(code)181    assert "Parameter names and types don't match: " in str(e)182def test_extra_types_should_raise_error():183    code = get_function("f", params=["i"], ptypes=["int", "int"], rtype="None")184    with raises(ValueError) as e:185        get_stub(code)186    assert "Parameter names and types don't match: " in str(e)187def test_if_function_decorated_unknown_then_stub_should_ignore():188    code = get_function("f", rtype="None", decorators=["@foo"])189    assert get_stub(code) == "def f() -> None: ...\n"190def test_if_function_decorated_callable_unknown_then_stub_should_ignore():191    code = get_function("f", rtype="None", decorators=["@foo()"])192    assert get_stub(code) == "def f() -> None: ...\n"193def test_stub_should_include_empty_class():194    code = get_class("C")195    assert get_stub(code) == "class C: ...\n"196def test_method_stub_should_include_self():197    method = get_function("m", params=["self"], rtype="None")198    code = get_class("C", methods=[method])199    assert get_stub(code) == "class C:\n    def m(self) -> None: ...\n"200def test_method_stub_should_include_params():201    method = get_function("m", params=["self", "i"], ptypes=["int"], rtype="None")202    code = get_class("C", methods=[method])203    assert get_stub(code) == "class C:\n    def m(self, i: int) -> None: ...\n"204def test_if_base_builtin_then_stub_should_include_base():205    code = get_class("C", bases=["dict"])206    assert get_stub(code) == "class C(dict): ...\n"207def test_if_base_from_imported_then_stub_should_include_import():208    code = "from x import A\n"209    code += "\n\n" + get_class("C", bases=["A"])210    assert get_stub(code) == "from x import A\n\nclass C(A): ...\n"211def test_if_base_imported_qualified_then_stub_should_include_import():212    code = "import x\n"213    code += "\n\n" + get_class("C", bases=["x.A"])214    assert get_stub(code) == "import x\n\nclass C(x.A): ...\n"215def test_if_base_from_imported_qualified_then_stub_should_include_import():216    code = "from x import y\n"217    code += "\n\n" + get_class("C", bases=["y.A"])218    assert get_stub(code) == "from x import y\n\nclass C(y.A): ...\n"219def test_if_base_unimported_qualified_then_stub_should_generate_import():220    code = get_class("C", bases=["x.y.A"])221    assert get_stub(code) == "import x.y\n\nclass C(x.y.A): ...\n"222def test_if_base_relative_imported_qualified_then_stub_should_include_import():223    code = "from . import x\n"224    code += "\n\n" + get_class("C", bases=["x.A"])225    assert get_stub(code) == "from . import x\n\nclass C(x.A): ...\n"226def test_class_sig_should_be_moved_to_init_method():227    method = get_function("__init__", params=["self", "x"], rtype=None)228    code = get_class("C", sig="(str) -> int", methods=[method])229    assert get_stub(code) == "class C:\n    def __init__(self, x: str) -> int: ...\n"230def test_class_sig_should_not_overwrite_existing_init_sig():231    method = get_function("__init__", params=["self", "x"], ptypes=["int"], rtype="None")232    code = get_class("C", sig="(str) -> int", methods=[method])233    assert get_stub(code) == "class C:\n    def __init__(self, x: int) -> None: ...\n"234def test_if_method_decorated_unknown_then_stub_should_ignore():235    method = get_function("m", params=["self"], rtype="None", decorators=["@foo"])236    code = get_class("C", methods=[method])237    assert get_stub(code) == "class C:\n    def m(self) -> None: ...\n"238def test_if_method_decorated_callable_unknown_then_stub_should_ignore():239    method = get_function("m", params=["self"], rtype="None", decorators=["@foo()"])240    code = get_class("C", methods=[method])241    assert get_stub(code) == "class C:\n    def m(self) -> None: ...\n"242def test_if_method_decorated_staticmethod_then_stub_should_include_decorator():243    method = get_function("m", rtype="None", decorators=["@staticmethod"])244    code = get_class("C", methods=[method])245    assert get_stub(code) == "class C:\n    @staticmethod\n    def m() -> None: ...\n"246def test_if_method_decorated_classmethod_then_stub_should_include_decorator():247    method = get_function("m", params=["cls"], rtype="None", decorators=["@classmethod"])248    code = get_class("C", methods=[method])249    assert get_stub(code) == "class C:\n    @classmethod\n    def m(cls) -> None: ...\n"250def test_if_method_decorated_property_then_stub_should_include_decorator():251    method = get_function("m", params=["self"], rtype="None", decorators=["@property"])252    code = get_class("C", methods=[method])253    assert get_stub(code) == "class C:\n    @property\n    def m(self) -> None: ...\n"254def test_if_method_decorated_property_setter_then_stub_should_include_decorator():255    method = get_function("m", params=["self"], rtype="None", decorators=["@x.setter"])256    code = get_class("C", methods=[method])257    assert get_stub(code) == "class C:\n    @x.setter\n    def m(self) -> None: ...\n"258def test_module_variable_type_comment_builtin_should_not_be_ellipsized():259    code = "n = 42  # sig: int\n"260    assert get_stub(code) == "n: int\n"261def test_module_variable_type_comment_from_imported_should_include_import():262    code = "from x import A\n\nn = 42  # sig: A\n" ""263    assert get_stub(code) == "from x import A\n\nn: A\n"264def test_module_variable_type_comment_imported_qualified_should_include_import():265    code = "import x\n\nn = 42  # sig: x.A\n" ""266    assert get_stub(code) == "import x\n\nn: x.A\n"267def test_module_variable_type_comment_relative_qualified_should_include_import():268    code = "from . import x\n\nn = 42  # sig: x.A\n" ""269    assert get_stub(code) == "from . import x\n\nn: x.A\n"270def test_module_variable_type_comment_unimported_qualified_should_include_import():271    code = "n = 42  # sig: x.y.A\n" ""272    assert get_stub(code) == "import x.y\n\nn: x.y.A\n"273def test_get_stub_comment_class_variable():274    code = get_class("C", classvars=["a = 42  # sig: int"])275    assert get_stub(code) == "class C:\n    a: int\n"276def test_get_stub_comment_instance_variable():277    method = get_function("m", params=["self"], rtype="None", body="self.a = 42  # sig: int")278    code = get_class("C", methods=[method])279    assert get_stub(code) == "class C:\n    a: int\n    def m(self) -> None: ...\n"280def test_stub_should_use_alias_comment():281    code = "# sigalias: B = int\n\nn = 42  # sig: B\n" ""282    assert get_stub(code) == "B = int\n\nn: B\n"283def test_stub_should_exclude_function_without_sig():284    code = get_function("f", rtype="None")285    code += "\n\n" + get_function("g", desc="")286    assert get_stub(code) == "def f() -> None: ...\n"287def test_get_stub_typing_import_should_come_first():288    code = "from x import A\n"289    code += "\n\n" + get_function("f", params=["a", "l"], ptypes=["A", "List"], rtype="None")290    assert (291        get_stub(code)292        == "from typing import List\n\nfrom x import A\n\ndef f(a: A, l: List) -> None: ...\n"...

tests.py

Source:tests.py

2from operator import add, gt3from core import *4def test_binary_function():5    expr = "(def (fun x y) (add x y))"6    fun = get_function(expr, "fun")7    assert fun(4, 3) == 78def test_multiline_function():9    expr = "(def (fun x y) (def a (add y x)) (add a 1))"10    fun = get_function(expr, "fun")11    assert fun(4, 3) == 812def test_multiple_function():13    expr = """(def (fun1 x y) (add x y))14              (def (fun2 x) (add x x))"""15    fun1 = get_function(expr, "fun1")16    fun2 = get_function(expr, "fun2")17    assert fun1(4, 3) == 718    assert fun2(5) == 1019def test_if_else():20    expr = "(def (fun x y) (if (gt x y) x y))"21    fun = get_function(expr, "fun")22    assert fun(4, 3) == 423    assert fun(8, 10) == 1024def test_grad_add():25    expr = """(def (f x y) (pow x y))26              (def df (grad f 0))"""27    df = get_function(expr, "df")28    assert np.allclose(df(3.0, 4), 108.0)29def test_grad_sin():30    expr = """(def (f x) (np.sin x))31              (def df (grad f 0))"""32    df = get_function(expr, "df")33    assert np.allclose(df(np.pi/3), 0.5)34def test_grad_fanout():35    expr = """(def (f x) (add (np.sin x) (np.sin x)))36              (def df (grad f 0))"""37    df = get_function(expr, "df")38    assert np.allclose(df(np.pi/3), 1.0)39def test_grad_const():40    expr = """(def (f x) 1)41              (def df (grad f 0))"""42    df = get_function(expr, "df")43    assert np.allclose(df(2.0), 0.0)44def test_grad_exp():45    expr = """(def (f x) (np.exp x))46              (def df (grad f 0))"""47    df = get_function(expr, "df")48    assert np.allclose(df(2.0), np.exp(2.0))49def test_double_grad_exp():50    expr = """(def (f x) (np.exp x))51              (def df (grad f 0))52              (def ddf (grad df 0))"""53    ddf = get_function(expr, "ddf")54    assert np.allclose(ddf(2.0), np.exp(2.0))55def test_grad_identity():56    expr = """(def (f x) x)57              (def df (grad f 0))"""58    df = get_function(expr, "df")59    assert np.allclose(df(2.0), 1.0)60def test_double_grad_identity():61    expr = """(def (f x) x)62              (def df (grad f 0))63              (def ddf (grad df 0))"""64    ddf = get_function(expr, "ddf")65    print ddf(2.0)66    assert np.allclose(ddf(2.0), 0.0)67def test_double_grad_sin():68    expr = """(def (f x) (np.sin x))69              (def df (grad f 0))70              (def ddf (grad df 0))"""71    ddf = get_function(expr, "ddf")72    print ddf(np.pi/6)...

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.