#!/usr/bin/env python3
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# Copyright 2016 Google Inc. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS-IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import pytest
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from fruit_test_common import *
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COMMON_DEFINITIONS = '''
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#include "test_common.h"
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struct X;
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struct Annotation1 {};
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using XAnnot1 = fruit::Annotated<Annotation1, X>;
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struct Annotation2 {};
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using XAnnot2 = fruit::Annotated<Annotation2, X>;
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struct Annotation3 {};
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using XAnnot3 = fruit::Annotated<Annotation3, X>;
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'''
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@pytest.mark.parametrize('XAnnot,XConstRefAnnot,YAnnot,YConstRefAnnot', [
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('X', 'const X&', 'Y', 'const Y&'),
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('fruit::Annotated<Annotation1, X>', 'ANNOTATED(Annotation1, const X&)',
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'fruit::Annotated<Annotation2, Y>', 'ANNOTATED(Annotation2, const Y&)')
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])
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def test_loop_in_autoinject(XAnnot, XConstRefAnnot, YAnnot, YConstRefAnnot):
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source = '''
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struct Y;
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struct X {
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INJECT(X(YConstRefAnnot)) {};
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};
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struct Y {
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INJECT(Y(XConstRefAnnot)) {};
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};
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fruit::Component<XAnnot> mutuallyConstructibleComponent() {
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return fruit::createComponent();
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}
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'''
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expect_compile_error(
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'SelfLoopError<XAnnot,YAnnot>',
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'Found a loop in the dependencies',
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COMMON_DEFINITIONS,
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source,
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locals())
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@pytest.mark.parametrize('XAnnot,ConstXAnnot,XConstRefAnnot,YAnnot,YConstRefAnnot', [
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('X', 'const X', 'const X&', 'Y', 'const Y&'),
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('fruit::Annotated<Annotation1, X>', 'ANNOTATED(Annotation1, const X)', 'ANNOTATED(Annotation1, const X&)',
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'fruit::Annotated<Annotation2, Y>', 'ANNOTATED(Annotation2, const Y&)')
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])
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def test_loop_in_autoinject_const(XAnnot, ConstXAnnot, XConstRefAnnot, YAnnot, YConstRefAnnot):
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source = '''
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struct Y;
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struct X {
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INJECT(X(YConstRefAnnot)) {};
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};
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struct Y {
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INJECT(Y(XConstRefAnnot)) {};
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};
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fruit::Component<ConstXAnnot> mutuallyConstructibleComponent() {
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return fruit::createComponent();
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}
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'''
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expect_compile_error(
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'SelfLoopError<XAnnot,YAnnot>',
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'Found a loop in the dependencies',
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COMMON_DEFINITIONS,
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source,
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locals())
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def test_loop_in_register_provider():
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source = '''
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struct X {};
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struct Y {};
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fruit::Component<X> mutuallyConstructibleComponent() {
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return fruit::createComponent()
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.registerProvider<X(Y)>([](Y) {return X();})
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.registerProvider<Y(X)>([](X) {return Y();});
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}
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'''
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expect_compile_error(
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'SelfLoopError<X,Y>',
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'Found a loop in the dependencies',
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COMMON_DEFINITIONS,
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source,
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locals())
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def test_loop_in_register_provider_with_annotations():
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source = '''
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struct X {};
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fruit::Component<fruit::Annotated<Annotation1, X>> mutuallyConstructibleComponent() {
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return fruit::createComponent()
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.registerProvider<fruit::Annotated<Annotation1, X>(fruit::Annotated<Annotation2, X>)>([](X x) {return x;})
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.registerProvider<fruit::Annotated<Annotation2, X>(fruit::Annotated<Annotation1, X>)>([](X x) {return x;});
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}
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'''
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expect_compile_error(
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'SelfLoopError<fruit::Annotated<Annotation1, X>, fruit::Annotated<Annotation2, X>>',
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'Found a loop in the dependencies',
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COMMON_DEFINITIONS,
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source,
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locals())
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def test_with_different_annotations_ok():
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source = '''
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struct X {};
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fruit::Component<XAnnot3> getComponent() {
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return fruit::createComponent()
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.registerProvider<XAnnot1()>([](){return X();})
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.registerProvider<XAnnot2(XAnnot1)>([](X x){return x;})
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.registerProvider<XAnnot3(XAnnot2)>([](X x){return x;});
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}
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int main() {
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fruit::Injector<XAnnot3> injector(getComponent);
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injector.get<XAnnot3>();
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}
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'''
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expect_success(
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COMMON_DEFINITIONS,
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source)
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if __name__== '__main__':
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main(__file__)
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