feat(python-sdk): MAX-35 - test invoices - unhappy path

[SebastianMiklaszewskiBldr]

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[patryk-grudzien-keen]

Left some comments.

[patryk-grudzien-keen]

test_should_return_422_when_creating_invoice_with_invalid_period_range_end_value(self)

[patryk-grudzien-keen]

Make use of:

with pytest.raises(ErrorArrayMapResponseException) as exception_info:
            self.get_invoices_controller().create_invoice(
                subscription_id=subscription.id,
                body=CreateInvoiceRequest(CreateInvoice(
                    issue_date="2024-01-01",
                    billing_address=CreateInvoiceAddress(
                        first_name="Hilario",
                        last_name="Schmidt",
                        phone="282-329-2085",
                        address="65581 Auer Expressway",
                        zip="15217",
                        country="US",
                        city="test City",
                        state="test State"
                    ),
                    line_items=[
                        CreateInvoiceItem(
                            title="TestInvoices_Product_Name_1",
                            quantity="12",
                            unit_price="150.00",
                            description="test invoice",
                            period_range_start="2024-01-01",
                            period_range_end="2023-01-01"
                        )
                    ]
                ))
            )
exception_info.errisinstance(ErrorArrayMapResponseException)
assert 422 == exception_info.value.response_code
errors = exception_info.value.errors
assert 1 == len(errors)
assert {"line_items[0].period_range_end": ["Must be greater or equal to period_range_start."]} == errors

instead.