test_ok2/testing/python/metafunc.py

816 lines
28 KiB
Python

import pytest, py, sys
from _pytest import python as funcargs
from _pytest.python import FixtureLookupError
class TestMetafunc:
def Metafunc(self, func):
# the unit tests of this class check if things work correctly
# on the funcarg level, so we don't need a full blown
# initiliazation
class FixtureInfo:
name2fixturedefs = None
def __init__(self, names):
self.names_closure = names
names = funcargs.getfuncargnames(func)
fixtureinfo = FixtureInfo(names)
return funcargs.Metafunc(func, fixtureinfo, None)
def test_no_funcargs(self, testdir):
def function(): pass
metafunc = self.Metafunc(function)
assert not metafunc.fixturenames
repr(metafunc._calls)
def test_function_basic(self):
def func(arg1, arg2="qwe"): pass
metafunc = self.Metafunc(func)
assert len(metafunc.fixturenames) == 1
assert 'arg1' in metafunc.fixturenames
assert metafunc.function is func
assert metafunc.cls is None
def test_addcall_no_args(self):
def func(arg1): pass
metafunc = self.Metafunc(func)
metafunc.addcall()
assert len(metafunc._calls) == 1
call = metafunc._calls[0]
assert call.id == "0"
assert not hasattr(call, 'param')
def test_addcall_id(self):
def func(arg1): pass
metafunc = self.Metafunc(func)
pytest.raises(ValueError, "metafunc.addcall(id=None)")
metafunc.addcall(id=1)
pytest.raises(ValueError, "metafunc.addcall(id=1)")
pytest.raises(ValueError, "metafunc.addcall(id='1')")
metafunc.addcall(id=2)
assert len(metafunc._calls) == 2
assert metafunc._calls[0].id == "1"
assert metafunc._calls[1].id == "2"
def test_addcall_param(self):
def func(arg1): pass
metafunc = self.Metafunc(func)
class obj: pass
metafunc.addcall(param=obj)
metafunc.addcall(param=obj)
metafunc.addcall(param=1)
assert len(metafunc._calls) == 3
assert metafunc._calls[0].getparam("arg1") == obj
assert metafunc._calls[1].getparam("arg1") == obj
assert metafunc._calls[2].getparam("arg1") == 1
def test_addcall_funcargs(self):
def func(x): pass
metafunc = self.Metafunc(func)
class obj: pass
metafunc.addcall(funcargs={"x": 2})
metafunc.addcall(funcargs={"x": 3})
pytest.raises(pytest.fail.Exception, "metafunc.addcall({'xyz': 0})")
assert len(metafunc._calls) == 2
assert metafunc._calls[0].funcargs == {'x': 2}
assert metafunc._calls[1].funcargs == {'x': 3}
assert not hasattr(metafunc._calls[1], 'param')
def test_parametrize_error(self):
def func(x, y): pass
metafunc = self.Metafunc(func)
metafunc.parametrize("x", [1,2])
pytest.raises(ValueError, lambda: metafunc.parametrize("x", [5,6]))
pytest.raises(ValueError, lambda: metafunc.parametrize("x", [5,6]))
metafunc.parametrize("y", [1,2])
pytest.raises(ValueError, lambda: metafunc.parametrize("y", [5,6]))
pytest.raises(ValueError, lambda: metafunc.parametrize("y", [5,6]))
def test_parametrize_and_id(self):
def func(x, y): pass
metafunc = self.Metafunc(func)
metafunc.parametrize("x", [1,2], ids=['basic', 'advanced'])
metafunc.parametrize("y", ["abc", "def"])
ids = [x.id for x in metafunc._calls]
assert ids == ["basic-abc", "basic-def", "advanced-abc", "advanced-def"]
def test_parametrize_with_wrong_number_of_ids(self, testdir):
def func(x, y): pass
metafunc = self.Metafunc(func)
pytest.raises(ValueError, lambda:
metafunc.parametrize("x", [1,2], ids=['basic']))
pytest.raises(ValueError, lambda:
metafunc.parametrize(("x","y"), [("abc", "def"),
("ghi", "jkl")], ids=["one"]))
def test_parametrize_with_userobjects(self):
def func(x, y): pass
metafunc = self.Metafunc(func)
class A:
pass
metafunc.parametrize("x", [A(), A()])
metafunc.parametrize("y", list("ab"))
assert metafunc._calls[0].id == "x0-a"
assert metafunc._calls[1].id == "x0-b"
assert metafunc._calls[2].id == "x1-a"
assert metafunc._calls[3].id == "x1-b"
@pytest.mark.issue250
def test_idmaker_autoname(self):
from _pytest.python import idmaker
result = idmaker(("a", "b"), [("string", 1.0),
("st-ring", 2.0)])
assert result == ["string-1.0", "st-ring-2.0"]
result = idmaker(("a", "b"), [(object(), 1.0),
(object(), object())])
assert result == ["a0-1.0", "a1-b1"]
# unicode mixing, issue250
result = idmaker((py.builtin._totext("a"), "b"), [({}, '\xc3\xb4')])
assert result == ['a0-\xc3\xb4']
def test_idmaker_native_strings(self):
from _pytest.python import idmaker
result = idmaker(("a", "b"), [(1.0, -1.1),
(2, -202),
("three", "three hundred"),
(True, False),
(None, None),
(list("six"), [66, 66]),
(set([7]), set("seven")),
(tuple("eight"), (8, -8, 8))
])
assert result == ["1.0--1.1",
"2--202",
"three-three hundred",
"True-False",
"None-None",
"a5-b5",
"a6-b6",
"a7-b7"]
def test_addcall_and_parametrize(self):
def func(x, y): pass
metafunc = self.Metafunc(func)
metafunc.addcall({'x': 1})
metafunc.parametrize('y', [2,3])
assert len(metafunc._calls) == 2
assert metafunc._calls[0].funcargs == {'x': 1, 'y': 2}
assert metafunc._calls[1].funcargs == {'x': 1, 'y': 3}
assert metafunc._calls[0].id == "0-2"
assert metafunc._calls[1].id == "0-3"
def test_parametrize_indirect(self):
def func(x, y): pass
metafunc = self.Metafunc(func)
metafunc.parametrize('x', [1], indirect=True)
metafunc.parametrize('y', [2,3], indirect=True)
metafunc.parametrize('unnamed', [1], indirect=True)
assert len(metafunc._calls) == 2
assert metafunc._calls[0].funcargs == {}
assert metafunc._calls[1].funcargs == {}
assert metafunc._calls[0].params == dict(x=1,y=2, unnamed=1)
assert metafunc._calls[1].params == dict(x=1,y=3, unnamed=1)
def test_addcalls_and_parametrize_indirect(self):
def func(x, y): pass
metafunc = self.Metafunc(func)
metafunc.addcall(param="123")
metafunc.parametrize('x', [1], indirect=True)
metafunc.parametrize('y', [2,3], indirect=True)
assert len(metafunc._calls) == 2
assert metafunc._calls[0].funcargs == {}
assert metafunc._calls[1].funcargs == {}
assert metafunc._calls[0].params == dict(x=1,y=2)
assert metafunc._calls[1].params == dict(x=1,y=3)
def test_parametrize_functional(self, testdir):
testdir.makepyfile("""
def pytest_generate_tests(metafunc):
metafunc.parametrize('x', [1,2], indirect=True)
metafunc.parametrize('y', [2])
def pytest_funcarg__x(request):
return request.param * 10
def pytest_funcarg__y(request):
return request.param
def test_simple(x,y):
assert x in (10,20)
assert y == 2
""")
result = testdir.runpytest("-v")
result.stdout.fnmatch_lines([
"*test_simple*1-2*",
"*test_simple*2-2*",
"*2 passed*",
])
def test_parametrize_onearg(self):
metafunc = self.Metafunc(lambda x: None)
metafunc.parametrize("x", [1,2])
assert len(metafunc._calls) == 2
assert metafunc._calls[0].funcargs == dict(x=1)
assert metafunc._calls[0].id == "1"
assert metafunc._calls[1].funcargs == dict(x=2)
assert metafunc._calls[1].id == "2"
def test_parametrize_onearg_indirect(self):
metafunc = self.Metafunc(lambda x: None)
metafunc.parametrize("x", [1,2], indirect=True)
assert metafunc._calls[0].params == dict(x=1)
assert metafunc._calls[0].id == "1"
assert metafunc._calls[1].params == dict(x=2)
assert metafunc._calls[1].id == "2"
def test_parametrize_twoargs(self):
metafunc = self.Metafunc(lambda x,y: None)
metafunc.parametrize(("x", "y"), [(1,2), (3,4)])
assert len(metafunc._calls) == 2
assert metafunc._calls[0].funcargs == dict(x=1, y=2)
assert metafunc._calls[0].id == "1-2"
assert metafunc._calls[1].funcargs == dict(x=3, y=4)
assert metafunc._calls[1].id == "3-4"
def test_parametrize_multiple_times(self, testdir):
testdir.makepyfile("""
import pytest
pytestmark = pytest.mark.parametrize("x", [1,2])
def test_func(x):
assert 0, x
class TestClass:
pytestmark = pytest.mark.parametrize("y", [3,4])
def test_meth(self, x, y):
assert 0, x
""")
result = testdir.runpytest()
assert result.ret == 1
result.stdout.fnmatch_lines([
"*6 fail*",
])
def test_parametrize_CSV(self, testdir):
testdir.makepyfile("""
import pytest
@pytest.mark.parametrize("x, y,", [(1,2), (2,3)])
def test_func(x, y):
assert x+1 == y
""")
reprec = testdir.inline_run()
reprec.assertoutcome(passed=2)
def test_parametrize_class_scenarios(self, testdir):
testdir.makepyfile("""
# same as doc/en/example/parametrize scenario example
def pytest_generate_tests(metafunc):
idlist = []
argvalues = []
for scenario in metafunc.cls.scenarios:
idlist.append(scenario[0])
items = scenario[1].items()
argnames = [x[0] for x in items]
argvalues.append(([x[1] for x in items]))
metafunc.parametrize(argnames, argvalues, ids=idlist, scope="class")
class Test(object):
scenarios = [['1', {'arg': {1: 2}, "arg2": "value2"}],
['2', {'arg':'value2', "arg2": "value2"}]]
def test_1(self, arg, arg2):
pass
def test_2(self, arg2, arg):
pass
def test_3(self, arg, arg2):
pass
""")
result = testdir.runpytest("-v")
assert result.ret == 0
result.stdout.fnmatch_lines("""
*test_1*1*
*test_2*1*
*test_3*1*
*test_1*2*
*test_2*2*
*test_3*2*
*6 passed*
""")
class TestMetafuncFunctional:
def test_attributes(self, testdir):
p = testdir.makepyfile("""
# assumes that generate/provide runs in the same process
import py, pytest
def pytest_generate_tests(metafunc):
metafunc.addcall(param=metafunc)
def pytest_funcarg__metafunc(request):
assert request._pyfuncitem._genid == "0"
return request.param
def test_function(metafunc, pytestconfig):
assert metafunc.config == pytestconfig
assert metafunc.module.__name__ == __name__
assert metafunc.function == test_function
assert metafunc.cls is None
class TestClass:
def test_method(self, metafunc, pytestconfig):
assert metafunc.config == pytestconfig
assert metafunc.module.__name__ == __name__
if py.std.sys.version_info > (3, 0):
unbound = TestClass.test_method
else:
unbound = TestClass.test_method.im_func
# XXX actually have an unbound test function here?
assert metafunc.function == unbound
assert metafunc.cls == TestClass
""")
result = testdir.runpytest(p, "-v")
result.stdout.fnmatch_lines([
"*2 passed in*",
])
def test_addcall_with_two_funcargs_generators(self, testdir):
testdir.makeconftest("""
def pytest_generate_tests(metafunc):
assert "arg1" in metafunc.fixturenames
metafunc.addcall(funcargs=dict(arg1=1, arg2=2))
""")
p = testdir.makepyfile("""
def pytest_generate_tests(metafunc):
metafunc.addcall(funcargs=dict(arg1=1, arg2=1))
class TestClass:
def test_myfunc(self, arg1, arg2):
assert arg1 == arg2
""")
result = testdir.runpytest("-v", p)
result.stdout.fnmatch_lines([
"*test_myfunc*0*PASS*",
"*test_myfunc*1*FAIL*",
"*1 failed, 1 passed*"
])
def test_two_functions(self, testdir):
p = testdir.makepyfile("""
def pytest_generate_tests(metafunc):
metafunc.addcall(param=10)
metafunc.addcall(param=20)
def pytest_funcarg__arg1(request):
return request.param
def test_func1(arg1):
assert arg1 == 10
def test_func2(arg1):
assert arg1 in (10, 20)
""")
result = testdir.runpytest("-v", p)
result.stdout.fnmatch_lines([
"*test_func1*0*PASS*",
"*test_func1*1*FAIL*",
"*test_func2*PASS*",
"*1 failed, 3 passed*"
])
def test_noself_in_method(self, testdir):
p = testdir.makepyfile("""
def pytest_generate_tests(metafunc):
assert 'xyz' not in metafunc.fixturenames
class TestHello:
def test_hello(xyz):
pass
""")
result = testdir.runpytest(p)
result.stdout.fnmatch_lines([
"*1 pass*",
])
def test_generate_plugin_and_module(self, testdir):
testdir.makeconftest("""
def pytest_generate_tests(metafunc):
assert "arg1" in metafunc.fixturenames
metafunc.addcall(id="world", param=(2,100))
""")
p = testdir.makepyfile("""
def pytest_generate_tests(metafunc):
metafunc.addcall(param=(1,1), id="hello")
def pytest_funcarg__arg1(request):
return request.param[0]
def pytest_funcarg__arg2(request):
return request.param[1]
class TestClass:
def test_myfunc(self, arg1, arg2):
assert arg1 == arg2
""")
result = testdir.runpytest("-v", p)
result.stdout.fnmatch_lines([
"*test_myfunc*hello*PASS*",
"*test_myfunc*world*FAIL*",
"*1 failed, 1 passed*"
])
def test_generate_tests_in_class(self, testdir):
p = testdir.makepyfile("""
class TestClass:
def pytest_generate_tests(self, metafunc):
metafunc.addcall(funcargs={'hello': 'world'}, id="hello")
def test_myfunc(self, hello):
assert hello == "world"
""")
result = testdir.runpytest("-v", p)
result.stdout.fnmatch_lines([
"*test_myfunc*hello*PASS*",
"*1 passed*"
])
def test_two_functions_not_same_instance(self, testdir):
p = testdir.makepyfile("""
def pytest_generate_tests(metafunc):
metafunc.addcall({'arg1': 10})
metafunc.addcall({'arg1': 20})
class TestClass:
def test_func(self, arg1):
assert not hasattr(self, 'x')
self.x = 1
""")
result = testdir.runpytest("-v", p)
result.stdout.fnmatch_lines([
"*test_func*0*PASS*",
"*test_func*1*PASS*",
"*2 pass*",
])
def test_issue28_setup_method_in_generate_tests(self, testdir):
p = testdir.makepyfile("""
def pytest_generate_tests(metafunc):
metafunc.addcall({'arg1': 1})
class TestClass:
def test_method(self, arg1):
assert arg1 == self.val
def setup_method(self, func):
self.val = 1
""")
result = testdir.runpytest(p)
result.stdout.fnmatch_lines([
"*1 pass*",
])
def test_parametrize_functional2(self, testdir):
testdir.makepyfile("""
def pytest_generate_tests(metafunc):
metafunc.parametrize("arg1", [1,2])
metafunc.parametrize("arg2", [4,5])
def test_hello(arg1, arg2):
assert 0, (arg1, arg2)
""")
result = testdir.runpytest()
result.stdout.fnmatch_lines([
"*(1, 4)*",
"*(1, 5)*",
"*(2, 4)*",
"*(2, 5)*",
"*4 failed*",
])
def test_parametrize_and_inner_getfuncargvalue(self, testdir):
p = testdir.makepyfile("""
def pytest_generate_tests(metafunc):
metafunc.parametrize("arg1", [1], indirect=True)
metafunc.parametrize("arg2", [10], indirect=True)
def pytest_funcarg__arg1(request):
x = request.getfuncargvalue("arg2")
return x + request.param
def pytest_funcarg__arg2(request):
return request.param
def test_func1(arg1, arg2):
assert arg1 == 11
""")
result = testdir.runpytest("-v", p)
result.stdout.fnmatch_lines([
"*test_func1*1*PASS*",
"*1 passed*"
])
def test_parametrize_on_setup_arg(self, testdir):
p = testdir.makepyfile("""
def pytest_generate_tests(metafunc):
assert "arg1" in metafunc.fixturenames
metafunc.parametrize("arg1", [1], indirect=True)
def pytest_funcarg__arg1(request):
return request.param
def pytest_funcarg__arg2(request, arg1):
return 10 * arg1
def test_func(arg2):
assert arg2 == 10
""")
result = testdir.runpytest("-v", p)
result.stdout.fnmatch_lines([
"*test_func*1*PASS*",
"*1 passed*"
])
def test_parametrize_with_ids(self, testdir):
testdir.makepyfile("""
import pytest
def pytest_generate_tests(metafunc):
metafunc.parametrize(("a", "b"), [(1,1), (1,2)],
ids=["basic", "advanced"])
def test_function(a, b):
assert a == b
""")
result = testdir.runpytest("-v")
assert result.ret == 1
result.stdout.fnmatch_lines_random([
"*test_function*basic*PASSED",
"*test_function*advanced*FAILED",
])
def test_parametrize_without_ids(self, testdir):
testdir.makepyfile("""
import pytest
def pytest_generate_tests(metafunc):
metafunc.parametrize(("a", "b"),
[(1,object()), (1.3,object())])
def test_function(a, b):
assert 1
""")
result = testdir.runpytest("-v")
result.stdout.fnmatch_lines("""
*test_function*1-b0*
*test_function*1.3-b1*
""")
@pytest.mark.parametrize(("scope", "length"),
[("module", 2), ("function", 4)])
def test_parametrize_scope_overrides(self, testdir, scope, length):
testdir.makepyfile("""
import pytest
l = []
def pytest_generate_tests(metafunc):
if "arg" in metafunc.funcargnames:
metafunc.parametrize("arg", [1,2], indirect=True,
scope=%r)
def pytest_funcarg__arg(request):
l.append(request.param)
return request.param
def test_hello(arg):
assert arg in (1,2)
def test_world(arg):
assert arg in (1,2)
def test_checklength():
assert len(l) == %d
""" % (scope, length))
reprec = testdir.inline_run()
reprec.assertoutcome(passed=5)
def test_parametrize_issue323(self, testdir):
testdir.makepyfile("""
import pytest
@pytest.fixture(scope='module', params=range(966))
def foo(request):
return request.param
def test_it(foo):
pass
""")
reprec = testdir.inline_run("--collectonly")
assert not reprec.getcalls("pytest_internalerror")
def test_usefixtures_seen_in_generate_tests(self, testdir):
testdir.makepyfile("""
import pytest
def pytest_generate_tests(metafunc):
assert "abc" in metafunc.fixturenames
metafunc.parametrize("abc", [1])
@pytest.mark.usefixtures("abc")
def test_function():
pass
""")
reprec = testdir.inline_run()
reprec.assertoutcome(passed=1)
def test_generate_tests_only_done_in_subdir(self, testdir):
sub1 = testdir.mkpydir("sub1")
sub2 = testdir.mkpydir("sub2")
sub1.join("conftest.py").write(py.code.Source("""
def pytest_generate_tests(metafunc):
assert metafunc.function.__name__ == "test_1"
"""))
sub2.join("conftest.py").write(py.code.Source("""
def pytest_generate_tests(metafunc):
assert metafunc.function.__name__ == "test_2"
"""))
sub1.join("test_in_sub1.py").write("def test_1(): pass")
sub2.join("test_in_sub2.py").write("def test_2(): pass")
result = testdir.runpytest("-v", "-s", sub1, sub2, sub1)
result.stdout.fnmatch_lines([
"*3 passed*"
])
class TestMarkersWithParametrization:
pytestmark = pytest.mark.issue308
def test_simple_mark(self, testdir):
s = """
import pytest
@pytest.mark.foo
@pytest.mark.parametrize(("n", "expected"), [
(1, 2),
pytest.mark.bar((1, 3)),
(2, 3),
])
def test_increment(n, expected):
assert n + 1 == expected
"""
items = testdir.getitems(s)
assert len(items) == 3
for item in items:
assert 'foo' in item.keywords
assert 'bar' not in items[0].keywords
assert 'bar' in items[1].keywords
assert 'bar' not in items[2].keywords
def test_select_based_on_mark(self, testdir):
s = """
import pytest
@pytest.mark.parametrize(("n", "expected"), [
(1, 2),
pytest.mark.foo((2, 3)),
(3, 4),
])
def test_increment(n, expected):
assert n + 1 == expected
"""
testdir.makepyfile(s)
rec = testdir.inline_run("-m", 'foo')
passed, skipped, fail = rec.listoutcomes()
assert len(passed) == 1
assert len(skipped) == 0
assert len(fail) == 0
@pytest.mark.xfail(reason="is this important to support??")
def test_nested_marks(self, testdir):
s = """
import pytest
mastermark = pytest.mark.foo(pytest.mark.bar)
@pytest.mark.parametrize(("n", "expected"), [
(1, 2),
mastermark((1, 3)),
(2, 3),
])
def test_increment(n, expected):
assert n + 1 == expected
"""
items = testdir.getitems(s)
assert len(items) == 3
for mark in ['foo', 'bar']:
assert mark not in items[0].keywords
assert mark in items[1].keywords
assert mark not in items[2].keywords
def test_simple_xfail(self, testdir):
s = """
import pytest
@pytest.mark.parametrize(("n", "expected"), [
(1, 2),
pytest.mark.xfail((1, 3)),
(2, 3),
])
def test_increment(n, expected):
assert n + 1 == expected
"""
testdir.makepyfile(s)
reprec = testdir.inline_run()
# xfail is skip??
reprec.assertoutcome(passed=2, skipped=1)
def test_simple_xfail_single_argname(self, testdir):
s = """
import pytest
@pytest.mark.parametrize("n", [
2,
pytest.mark.xfail(3),
4,
])
def test_isEven(n):
assert n % 2 == 0
"""
testdir.makepyfile(s)
reprec = testdir.inline_run()
reprec.assertoutcome(passed=2, skipped=1)
def test_xfail_with_arg(self, testdir):
s = """
import pytest
@pytest.mark.parametrize(("n", "expected"), [
(1, 2),
pytest.mark.xfail("True")((1, 3)),
(2, 3),
])
def test_increment(n, expected):
assert n + 1 == expected
"""
testdir.makepyfile(s)
reprec = testdir.inline_run()
reprec.assertoutcome(passed=2, skipped=1)
def test_xfail_with_kwarg(self, testdir):
s = """
import pytest
@pytest.mark.parametrize(("n", "expected"), [
(1, 2),
pytest.mark.xfail(reason="some bug")((1, 3)),
(2, 3),
])
def test_increment(n, expected):
assert n + 1 == expected
"""
testdir.makepyfile(s)
reprec = testdir.inline_run()
reprec.assertoutcome(passed=2, skipped=1)
def test_xfail_with_arg_and_kwarg(self, testdir):
s = """
import pytest
@pytest.mark.parametrize(("n", "expected"), [
(1, 2),
pytest.mark.xfail("True", reason="some bug")((1, 3)),
(2, 3),
])
def test_increment(n, expected):
assert n + 1 == expected
"""
testdir.makepyfile(s)
reprec = testdir.inline_run()
reprec.assertoutcome(passed=2, skipped=1)
def test_xfail_passing_is_xpass(self, testdir):
s = """
import pytest
@pytest.mark.parametrize(("n", "expected"), [
(1, 2),
pytest.mark.xfail("sys.version > 0", reason="some bug")((2, 3)),
(3, 4),
])
def test_increment(n, expected):
assert n + 1 == expected
"""
testdir.makepyfile(s)
reprec = testdir.inline_run()
# xpass is fail, obviously :)
reprec.assertoutcome(passed=2, failed=1)
def test_parametrize_called_in_generate_tests(self, testdir):
s = """
import pytest
def pytest_generate_tests(metafunc):
passingTestData = [(1, 2),
(2, 3)]
failingTestData = [(1, 3),
(2, 2)]
testData = passingTestData + [pytest.mark.xfail(d)
for d in failingTestData]
metafunc.parametrize(("n", "expected"), testData)
def test_increment(n, expected):
assert n + 1 == expected
"""
testdir.makepyfile(s)
reprec = testdir.inline_run()
reprec.assertoutcome(passed=2, skipped=2)