Source code for sqlobject.inheritance.tests.test_inheritance

from pytest import raises
from sqlobject import IntCol, StringCol
from sqlobject.inheritance import InheritableSQLObject
from sqlobject.tests.dbtest import setupClass

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# Inheritance
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[docs]class InheritablePerson(InheritableSQLObject): firstName = StringCol() lastName = StringCol(alternateID=True, length=255)
[docs]class Employee(InheritablePerson): _inheritable = False so_position = StringCol()
[docs]def setup(): setupClass(InheritablePerson) setupClass(Employee) Employee(firstName='Project', lastName='Leader', so_position='Project leader') InheritablePerson(firstName='Oneof', lastName='Authors')
[docs]def test_creation_fail(): setup() kwargs = {'firstName': 'John', 'lastname': 'Doe'} raises(TypeError, Employee, **kwargs) persons = InheritablePerson.select(InheritablePerson.q.firstName == 'John') assert persons.count() == 0
[docs]def test_inheritance(): setup() persons = InheritablePerson.select() # all for person in persons: assert isinstance(person, InheritablePerson) if isinstance(person, Employee): assert not hasattr(person, "childName") else: assert hasattr(person, "childName") assert not person.childName
[docs]def test_inheritance_select(): setup() # comparison to None needed to build the right SQL expression persons = InheritablePerson.select( InheritablePerson.q.firstName != None) # noqa assert persons.count() == 2 persons = InheritablePerson.select(InheritablePerson.q.firstName == "phd") assert persons.count() == 0 # comparison to None needed to build the right SQL expression employees = Employee.select(Employee.q.firstName != None) # noqa assert employees.count() == 1 employees = Employee.select(Employee.q.firstName == "phd") assert employees.count() == 0 # comparison to None needed to build the right SQL expression employees = Employee.select(Employee.q.so_position != None) # noqa assert employees.count() == 1 persons = InheritablePerson.selectBy(firstName="Project") assert persons.count() == 1 assert isinstance(persons[0], Employee) persons = Employee.selectBy(firstName="Project") assert persons.count() == 1 try: person = InheritablePerson.byLastName("Oneof") except: pass else: raise RuntimeError("unknown person %s" % person) person = InheritablePerson.byLastName("Leader") assert person.firstName == "Project" person = Employee.byLastName("Leader") assert person.firstName == "Project" persons = list(InheritablePerson.select( orderBy=InheritablePerson.q.lastName)) assert len(persons) == 2 persons = list(InheritablePerson.select(orderBy=( InheritablePerson.q.lastName, InheritablePerson.q.firstName))) assert len(persons) == 2 persons = list(Employee.select(orderBy=Employee.q.lastName)) assert len(persons) == 1 persons = list(Employee.select(orderBy=(Employee.q.lastName, Employee.q.firstName))) assert len(persons) == 1 persons = list(Employee.select(orderBy=Employee.q.so_position)) assert len(persons) == 1 persons = list(Employee.select(orderBy=(Employee.q.so_position, Employee.q.lastName))) assert len(persons) == 1
[docs]def test_addDelColumn(): setup() assert hasattr(InheritablePerson, "firstName") assert hasattr(Employee, "firstName") assert hasattr(InheritablePerson.q, "firstName") assert hasattr(Employee.q, "firstName") Employee.sqlmeta.addColumn(IntCol('runtime', default=None)) assert not hasattr(InheritablePerson, 'runtime') assert hasattr(Employee, 'runtime') assert not hasattr(InheritablePerson.q, 'runtime') assert hasattr(Employee.q, 'runtime') InheritablePerson.sqlmeta.addColumn(IntCol('runtime2', default=None)) assert hasattr(InheritablePerson, 'runtime2') assert hasattr(Employee, 'runtime2') assert hasattr(InheritablePerson.q, 'runtime2') assert hasattr(Employee.q, 'runtime2') Employee.sqlmeta.delColumn('runtime') assert not hasattr(InheritablePerson, 'runtime') assert not hasattr(Employee, 'runtime') assert not hasattr(InheritablePerson.q, 'runtime') assert not hasattr(Employee.q, 'runtime') InheritablePerson.sqlmeta.delColumn('runtime2') assert not hasattr(InheritablePerson, 'runtime2') assert not hasattr(Employee, 'runtime2') assert not hasattr(InheritablePerson.q, 'runtime2') assert not hasattr(Employee.q, 'runtime2')