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#!/usr/bin/env python3
# Copyright 2016 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS-IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import pytest
from fruit_test_common import *
from fruit_test_config import CXX_COMPILER_NAME
import re
COMMON_DEFINITIONS = '''
#include "test_common.h"
struct Annotation {};
struct Annotation1 {};
struct Annotation2 {};
'''
@pytest.mark.parametrize('XAnnot,XImplAnnot', [
('X', 'XImpl'),
('X', 'fruit::Annotated<Annotation2, XImpl>'),
('fruit::Annotated<Annotation1, X>', 'XImpl'),
('fruit::Annotated<Annotation1, X>', 'fruit::Annotated<Annotation2, XImpl>'),
])
def test_add_interface_multibinding_success(XAnnot, XImplAnnot):
source = '''
struct X {
virtual int foo() = 0;
};
struct XImpl : public X {
INJECT(XImpl()) = default;
int foo() override {
return 5;
}
};
fruit::Component<> getComponent() {
return fruit::createComponent()
.addMultibinding<XAnnot, XImplAnnot>();
}
int main() {
fruit::Injector<> injector(getComponent);
std::vector<X*> multibindings = injector.getMultibindings<XAnnot>();
Assert(multibindings.size() == 1);
Assert(multibindings[0]->foo() == 5);
}
'''
expect_success(
COMMON_DEFINITIONS,
source,
locals())
@pytest.mark.parametrize('XAnnot,XImplAnnot,ConstXImplAnnot', [
('X', 'XImpl', 'const XImpl'),
('X', 'fruit::Annotated<Annotation2, XImpl>', 'fruit::Annotated<Annotation2, const XImpl>'),
])
def test_add_interface_multibinding_const_target_error_install_first(XAnnot, XImplAnnot, ConstXImplAnnot):
source = '''
struct X {
virtual int foo() = 0;
};
struct XImpl : public X {
int foo() override {
return 5;
}
};
fruit::Component<ConstXImplAnnot> getXImplComponent();
fruit::Component<> getComponent() {
return fruit::createComponent()
.install(getXImplComponent)
.addMultibinding<XAnnot, XImplAnnot>();
}
'''
expect_compile_error(
'NonConstBindingRequiredButConstBindingProvidedError<XImplAnnot>',
'The type T was provided as constant, however one of the constructors/providers/factories in this component',
COMMON_DEFINITIONS,
source,
locals())
@pytest.mark.parametrize('XAnnot,XImplAnnot,ConstXImplAnnot', [
('X', 'XImpl', 'const XImpl'),
('X', 'fruit::Annotated<Annotation2, XImpl>', 'fruit::Annotated<Annotation2, const XImpl>'),
])
def test_add_interface_multibinding_const_target_error_binding_first(XAnnot, XImplAnnot, ConstXImplAnnot):
source = '''
struct X {
virtual int foo() = 0;
};
struct XImpl : public X {
int foo() override {
return 5;
}
};
fruit::Component<ConstXImplAnnot> getXImplComponent();
fruit::Component<> getComponent() {
return fruit::createComponent()
.addMultibinding<XAnnot, XImplAnnot>()
.install(getXImplComponent);
}
'''
expect_compile_error(
'NonConstBindingRequiredButConstBindingProvidedError<XImplAnnot>',
'The type T was provided as constant, however one of the constructors/providers/factories in this component',
COMMON_DEFINITIONS,
source,
locals())
@pytest.mark.parametrize('XAnnot,intAnnot', [
('X', 'int'),
('fruit::Annotated<Annotation1, X>', 'fruit::Annotated<Annotation2, int>'),
])
def test_error_not_base(XAnnot, intAnnot):
source = '''
struct X {};
fruit::Component<> getComponent() {
return fruit::createComponent()
.addMultibinding<XAnnot, intAnnot>();
}
'''
expect_compile_error(
'NotABaseClassOfError<X,int>',
'I is not a base class of C.',
COMMON_DEFINITIONS,
source,
locals())
@pytest.mark.parametrize('ScalerAnnot,ScalerImplAnnot', [
('Scaler', 'ScalerImpl'),
('fruit::Annotated<Annotation1, Scaler>', 'fruit::Annotated<Annotation2, ScalerImpl>'),
])
def test_error_abstract_class(ScalerAnnot, ScalerImplAnnot):
source = '''
struct Scaler {
virtual double scale(double x) = 0;
};
struct ScalerImpl : public Scaler {
// Note: here we "forgot" to implement scale() (on purpose, for this test) so ScalerImpl is an abstract class.
};
fruit::Component<> getComponent() {
return fruit::createComponent()
.addMultibinding<ScalerAnnot, ScalerImplAnnot>();
}
'''
expect_compile_error(
'NoBindingFoundForAbstractClassError<ScalerImplAnnot,ScalerImpl>',
'No explicit binding was found for T, and note that C is an abstract class',
COMMON_DEFINITIONS,
source,
locals())
@pytest.mark.parametrize('ScalerAnnot,ScalerImplAnnot', [
('Scaler', 'ScalerImpl'),
('fruit::Annotated<Annotation1, Scaler>', 'fruit::Annotated<Annotation2, ScalerImpl>'),
])
@pytest.mark.skipif(
re.search('Clang', CXX_COMPILER_NAME) is None,
reason = 'This is Clang-only because GCC >=4.9 refuses to even mention the type C() when C is an abstract class, '
'while Clang allows to mention the type (but of course there can be no functions with this type)')
def test_error_abstract_class_clang(ScalerAnnot, ScalerImplAnnot):
source = '''
struct Scaler {
virtual double scale(double x) = 0;
};
struct ScalerImpl : public Scaler {
INJECT(ScalerImpl()) = default;
// Note: here we "forgot" to implement scale() (on purpose, for this test) so ScalerImpl is an abstract class.
};
fruit::Component<> getComponent() {
return fruit::createComponent()
.addMultibinding<ScalerAnnot, ScalerImplAnnot>();
}
'''
expect_compile_error(
'CannotConstructAbstractClassError<ScalerImpl>',
'The specified class can.t be constructed because it.s an abstract class.',
COMMON_DEFINITIONS,
source,
locals())
if __name__== '__main__':
main(__file__)
|
