tests/data/composition.py

class C:
    def test(self) -> None:
        with patch("black.out", print):
            self.assertEqual(
                unstyle(str(report)), "1 file reformatted, 1 file failed to reformat."
            )
            self.assertEqual(
                unstyle(str(report)),
                "1 file reformatted, 1 file left unchanged, 1 file failed to reformat.",
            )
            self.assertEqual(
                unstyle(str(report)),
                "2 files reformatted, 1 file left unchanged, 1 file failed to"
                " reformat.",
            )
            self.assertEqual(
                unstyle(str(report)),
                "2 files reformatted, 2 files left unchanged, 2 files failed to"
                " reformat.",
            )
            for i in (a,):
                if (
                    # Rule 1
                    i % 2 == 0
                    # Rule 2
                    and i % 3 == 0
                ):
                    while (
                        # Just a comment
                        call()
                        # Another
                    ):
                        print(i)
        xxxxxxxxxxxxxxxx = Yyyy2YyyyyYyyyyy(
            push_manager=context.request.resource_manager,
            max_items_to_push=num_items,
            batch_size=Yyyy2YyyyYyyyyYyyy.FULL_SIZE,
        ).push(
            # Only send the first n items.
            items=items[:num_items]
        )
        return (
            'Utterly failed doctest test for %s\n   File "%s", line %s, in %s\n\n%s'
            % (test.name, test.filename, lineno, lname, err)
        )

    def omitting_trailers(self) -> None:
        get_collection(
            hey_this_is_a_very_long_call, it_has_funny_attributes, really=True
        )[OneLevelIndex]
        get_collection(
            hey_this_is_a_very_long_call, it_has_funny_attributes, really=True
        )[OneLevelIndex][TwoLevelIndex][ThreeLevelIndex][FourLevelIndex]
        d[0][1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][
            22
        ]
        assignment = (
            some.rather.elaborate.rule() and another.rule.ending_with.index[123]
        )

    def easy_asserts(self) -> None:
        assert {
            key1: value1,
            key2: value2,
            key3: value3,
            key4: value4,
            key5: value5,
            key6: value6,
            key7: value7,
            key8: value8,
            key9: value9,
        } == expected, "Not what we expected"

        assert expected == {
            key1: value1,
            key2: value2,
            key3: value3,
            key4: value4,
            key5: value5,
            key6: value6,
            key7: value7,
            key8: value8,
            key9: value9,
        }, "Not what we expected"

        assert expected == {
            key1: value1,
            key2: value2,
            key3: value3,
            key4: value4,
            key5: value5,
            key6: value6,
            key7: value7,
            key8: value8,
            key9: value9,
        }

    def tricky_asserts(self) -> None:
        assert {
            key1: value1,
            key2: value2,
            key3: value3,
            key4: value4,
            key5: value5,
            key6: value6,
            key7: value7,
            key8: value8,
            key9: value9,
        } == expected(
            value, is_going_to_be="too long to fit in a single line", srsly=True
        ), "Not what we expected"

        assert {
            key1: value1,
            key2: value2,
            key3: value3,
            key4: value4,
            key5: value5,
            key6: value6,
            key7: value7,
            key8: value8,
            key9: value9,
        } == expected, (
            "Not what we expected and the message is too long to fit in one line"
        )

        assert expected(
            value, is_going_to_be="too long to fit in a single line", srsly=True
        ) == {
            key1: value1,
            key2: value2,
            key3: value3,
            key4: value4,
            key5: value5,
            key6: value6,
            key7: value7,
            key8: value8,
            key9: value9,
        }, "Not what we expected"

        assert expected == {
            key1: value1,
            key2: value2,
            key3: value3,
            key4: value4,
            key5: value5,
            key6: value6,
            key7: value7,
            key8: value8,
            key9: value9,
        }, (
            "Not what we expected and the message is too long to fit in one line"
            " because it's too long"
        )

        dis_c_instance_method = """\
        %3d           0 LOAD_FAST                1 (x)
                      2 LOAD_CONST               1 (1)
                      4 COMPARE_OP               2 (==)
                      6 LOAD_FAST                0 (self)
                      8 STORE_ATTR               0 (x)
                     10 LOAD_CONST               0 (None)
                     12 RETURN_VALUE
        """ % (
            _C.__init__.__code__.co_firstlineno + 1,
        )

        assert (
            expectedexpectedexpectedexpectedexpectedexpectedexpectedexpectedexpect
            == {
                key1: value1,
                key2: value2,
                key3: value3,
                key4: value4,
                key5: value5,
                key6: value6,
                key7: value7,
                key8: value8,
                key9: value9,
            }
        )