def test_class_with_derived_features(pygen_output_dir):
rootpkg = EPackage('simpleClasses')
MyClass = EClass('MyClass')
rootpkg.eClassifiers.append(MyClass)
any_feature = EAttribute('any', EString, derived=True)
MyClass.eStructuralFeatures.append(any_feature)
mm = generate_meta_model(rootpkg, pygen_output_dir)
generated_class = mm.eClassifiers['MyClass']
assert mm.MyClass is generated_class
assert isinstance(mm.MyClass._any, EAttribute)
assert mm.MyClass._any.derived is True
assert mm.MyClass._any.name == 'any'
def test_eoperation_with_documentation(pygen_output_dir):
rootpkg = EPackage('eoperation_with_documentation')
c1 = EClass('MyClass')
rootpkg.eClassifiers.append(c1)
operation = EOperation('do_it')
doc = EAnnotation('http://www.eclipse.org/emf/2002/GenModel')
operation.eAnnotations.append(doc)
doc.details['documentation'] = 'This is a documentation test'
c1.eOperations.append(operation)
mm = generate_meta_model(rootpkg, pygen_output_dir)
instance = mm.MyClass()
with pytest.raises(NotImplementedError):
instance.do_it()
def test_class_with_features(pygen_output_dir):
rootpkg = EPackage('class_features')
class_ = EClass('MyClass')
rootpkg.eClassifiers.append(class_)
class_.eStructuralFeatures.append(EAttribute('number', EInt, changeable=False))
class_.eStructuralFeatures.append(EReference('ref', class_))
mm = generate_meta_model(rootpkg, pygen_output_dir)
generated_class = mm.eClassifiers['MyClass']
instance = generated_class(number=7)
assert instance.number == 7
assert not instance.ref
instance.ref = instance
assert instance.ref is instance
def test_eattribute_derived_not_changeable(pygen_output_dir):
rootpkg = EPackage('changeable_attribute')
c1 = EClass('MyClass')
rootpkg.eClassifiers.append(c1)
att1 = EAttribute('att1', EString, derived=True, changeable=True)
att2 = EAttribute('att2', EString, derived=True, changeable=False)
c1.eStructuralFeatures.extend([att2, att1])
mm = generate_meta_model(rootpkg, pygen_output_dir)
instance = mm.MyClass()
assert instance.att1 is None
assert instance.att2 is None
instance.att1 = "test_value"
assert instance.att1 == "test_value"
with pytest.raises(AttributeError):
instance.att2 = "test_value2"
def test_user_module_default_values(pygen_output_dir):
rootpkg = EPackage('with_default_values')
e1 = EEnum('MyEnum', literals=('None_', 'A', 'B'))
rootpkg.eClassifiers.append(e1)
c1 = EClass('MyClass')
a1 = EAttribute('a1', EString)
a1.defaultValueLiteral = 'my_str'
a2 = EAttribute('a2', EInt)
a2.defaultValueLiteral = '7654321'
a3 = EAttribute('a3', e1)
a3.defaultValueLiteral = 'None'
c1.eStructuralFeatures.extend([a1, a2, a3])
rootpkg.eClassifiers.append(c1)
mm = generate_meta_model(rootpkg, pygen_output_dir)
assert mm.MyClass.a1.default_value == 'my_str'
assert mm.MyClass.a2.default_value == 7654321
assert mm.MyClass.a3.default_value == mm.MyEnum.None_
