How to use get_function method in localstack

Best Python code snippet using localstack_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)...

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