278 lines
7.9 KiB
Python
278 lines
7.9 KiB
Python
import sys
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import py, pytest
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import _pytest.assertion as plugin
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from _pytest.assertion import reinterpret, util
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needsnewassert = pytest.mark.skipif("sys.version_info < (2,6)")
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def interpret(expr):
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return reinterpret.reinterpret(expr, py.code.Frame(sys._getframe(1)))
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class TestBinReprIntegration:
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pytestmark = needsnewassert
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def test_pytest_assertrepr_compare_called(self, testdir):
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testdir.makeconftest("""
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l = []
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def pytest_assertrepr_compare(op, left, right):
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l.append((op, left, right))
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def pytest_funcarg__l(request):
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return l
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""")
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testdir.makepyfile("""
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def test_hello():
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assert 0 == 1
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def test_check(l):
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assert l == [("==", 0, 1)]
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""")
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result = testdir.runpytest("-v")
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result.stdout.fnmatch_lines([
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"*test_hello*FAIL*",
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"*test_check*PASS*",
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])
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def callequal(left, right):
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return plugin.pytest_assertrepr_compare('==', left, right)
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class TestAssert_reprcompare:
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def test_different_types(self):
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assert callequal([0, 1], 'foo') is None
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def test_summary(self):
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summary = callequal([0, 1], [0, 2])[0]
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assert len(summary) < 65
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def test_text_diff(self):
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diff = callequal('spam', 'eggs')[1:]
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assert '- spam' in diff
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assert '+ eggs' in diff
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def test_multiline_text_diff(self):
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left = 'foo\nspam\nbar'
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right = 'foo\neggs\nbar'
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diff = callequal(left, right)
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assert '- spam' in diff
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assert '+ eggs' in diff
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def test_list(self):
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expl = callequal([0, 1], [0, 2])
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assert len(expl) > 1
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def test_list_different_lenghts(self):
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expl = callequal([0, 1], [0, 1, 2])
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assert len(expl) > 1
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expl = callequal([0, 1, 2], [0, 1])
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assert len(expl) > 1
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def test_dict(self):
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expl = callequal({'a': 0}, {'a': 1})
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assert len(expl) > 1
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def test_set(self):
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expl = callequal(set([0, 1]), set([0, 2]))
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assert len(expl) > 1
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def test_list_tuples(self):
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expl = callequal([], [(1,2)])
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assert len(expl) > 1
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expl = callequal([(1,2)], [])
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assert len(expl) > 1
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def test_list_bad_repr(self):
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class A:
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def __repr__(self):
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raise ValueError(42)
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expl = callequal([], [A()])
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assert 'ValueError' in "".join(expl)
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expl = callequal({}, {'1': A()})
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assert 'faulty' in "".join(expl)
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def test_one_repr_empty(self):
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"""
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the faulty empty string repr did trigger
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a unbound local error in _diff_text
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"""
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class A(str):
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def __repr__(self):
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return ''
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expl = callequal(A(), '')
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assert not expl
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def test_repr_no_exc(self):
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expl = ' '.join(callequal('foo', 'bar'))
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assert 'raised in repr()' not in expl
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@needsnewassert
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def test_rewritten(testdir):
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testdir.makepyfile("""
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def test_rewritten():
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assert "@py_builtins" in globals()
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""")
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assert testdir.runpytest().ret == 0
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def test_reprcompare_notin():
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detail = plugin.pytest_assertrepr_compare('not in', 'foo', 'aaafoobbb')[1:]
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assert detail == ["'foo' is contained here:", ' aaafoobbb', '? +++']
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@needsnewassert
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def test_pytest_assertrepr_compare_integration(testdir):
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testdir.makepyfile("""
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def test_hello():
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x = set(range(100))
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y = x.copy()
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y.remove(50)
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assert x == y
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""")
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result = testdir.runpytest()
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result.stdout.fnmatch_lines([
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"*def test_hello():*",
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"*assert x == y*",
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"*E*Extra items*left*",
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"*E*50*",
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])
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@needsnewassert
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def test_sequence_comparison_uses_repr(testdir):
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testdir.makepyfile("""
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def test_hello():
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x = set("hello x")
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y = set("hello y")
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assert x == y
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""")
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result = testdir.runpytest()
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result.stdout.fnmatch_lines([
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"*def test_hello():*",
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"*assert x == y*",
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"*E*Extra items*left*",
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"*E*'x'*",
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"*E*Extra items*right*",
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"*E*'y'*",
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])
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@pytest.mark.xfail("sys.version_info < (2,6)")
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def test_assert_compare_truncate_longmessage(testdir):
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testdir.makepyfile(r"""
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def test_long():
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a = list(range(200))
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b = a[::2]
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a = '\n'.join(map(str, a))
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b = '\n'.join(map(str, b))
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assert a == b
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""")
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result = testdir.runpytest()
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result.stdout.fnmatch_lines([
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"*too verbose, truncated*",
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])
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result = testdir.runpytest('-vv')
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result.stdout.fnmatch_lines([
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"*- 197",
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])
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@needsnewassert
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def test_assertrepr_loaded_per_dir(testdir):
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testdir.makepyfile(test_base=['def test_base(): assert 1 == 2'])
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a = testdir.mkdir('a')
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a_test = a.join('test_a.py')
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a_test.write('def test_a(): assert 1 == 2')
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a_conftest = a.join('conftest.py')
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a_conftest.write('def pytest_assertrepr_compare(): return ["summary a"]')
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b = testdir.mkdir('b')
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b_test = b.join('test_b.py')
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b_test.write('def test_b(): assert 1 == 2')
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b_conftest = b.join('conftest.py')
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b_conftest.write('def pytest_assertrepr_compare(): return ["summary b"]')
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result = testdir.runpytest()
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result.stdout.fnmatch_lines([
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'*def test_base():*',
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'*E*assert 1 == 2*',
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'*def test_a():*',
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'*E*assert summary a*',
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'*def test_b():*',
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'*E*assert summary b*'])
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def test_assertion_options(testdir):
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testdir.makepyfile("""
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def test_hello():
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x = 3
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assert x == 4
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""")
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result = testdir.runpytest()
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assert "3 == 4" in result.stdout.str()
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off_options = (("--no-assert",),
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("--nomagic",),
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("--no-assert", "--nomagic"),
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("--assert=plain",),
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("--assert=plain", "--no-assert"),
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("--assert=plain", "--nomagic"),
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("--assert=plain", "--no-assert", "--nomagic"))
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for opt in off_options:
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result = testdir.runpytest(*opt)
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assert "3 == 4" not in result.stdout.str()
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def test_old_assert_mode(testdir):
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testdir.makepyfile("""
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def test_in_old_mode():
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assert "@py_builtins" not in globals()
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""")
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result = testdir.runpytest("--assert=reinterp")
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assert result.ret == 0
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def test_triple_quoted_string_issue113(testdir):
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testdir.makepyfile("""
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def test_hello():
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assert "" == '''
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'''""")
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result = testdir.runpytest("--fulltrace")
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result.stdout.fnmatch_lines([
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"*1 failed*",
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])
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assert 'SyntaxError' not in result.stdout.str()
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def test_traceback_failure(testdir):
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p1 = testdir.makepyfile("""
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def g():
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return 2
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def f(x):
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assert x == g()
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def test_onefails():
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f(3)
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""")
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result = testdir.runpytest(p1)
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result.stdout.fnmatch_lines([
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"*test_traceback_failure.py F",
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"====* FAILURES *====",
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"____*____",
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"",
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" def test_onefails():",
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"> f(3)",
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"",
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"*test_*.py:6: ",
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"_ _ _ *",
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#"",
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" def f(x):",
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"> assert x == g()",
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"E assert 3 == 2",
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"E + where 2 = g()",
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"",
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"*test_traceback_failure.py:4: AssertionError"
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])
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@pytest.mark.skipif("sys.version_info < (2,5) or '__pypy__' in sys.builtin_module_names or sys.platform.startswith('java')" )
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def test_warn_missing(testdir):
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p1 = testdir.makepyfile("")
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result = testdir.run(sys.executable, "-OO", "-m", "pytest", "-h")
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result.stderr.fnmatch_lines([
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"*WARNING*assert statements are not executed*",
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])
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result = testdir.run(sys.executable, "-OO", "-m", "pytest", "--no-assert")
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result.stderr.fnmatch_lines([
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"*WARNING*assert statements are not executed*",
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])
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