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/*
* Copyright (C) 2015 The Android Open Source Project
*
* 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.
*/
#include "ValueVisitor.h"
#include <string>
#include "ResourceValues.h"
#include "test/Test.h"
#include "util/Util.h"
namespace aapt {
struct SingleReferenceVisitor : public DescendingValueVisitor {
using DescendingValueVisitor::Visit;
Reference* visited = nullptr;
void Visit(Reference* ref) override { visited = ref; }
};
struct StyleVisitor : public DescendingValueVisitor {
using DescendingValueVisitor::Visit;
std::list<Reference*> visited_refs;
Style* visited_style = nullptr;
void Visit(Reference* ref) override { visited_refs.push_back(ref); }
void Visit(Style* style) override {
visited_style = style;
DescendingValueVisitor::Visit(style);
}
};
TEST(ValueVisitorTest, VisitsReference) {
Reference ref(ResourceName{"android", ResourceType::kAttr, "foo"});
SingleReferenceVisitor visitor;
ref.Accept(&visitor);
EXPECT_EQ(visitor.visited, &ref);
}
TEST(ValueVisitorTest, VisitsReferencesInStyle) {
std::unique_ptr<Style> style =
test::StyleBuilder()
.SetParent("android:style/foo")
.AddItem("android:attr/one", test::BuildReference("android:id/foo"))
.Build();
StyleVisitor visitor;
style->Accept(&visitor);
ASSERT_EQ(style.get(), visitor.visited_style);
// Entry attribute references, plus the parent reference, plus one value
// reference.
ASSERT_EQ(style->entries.size() + 2, visitor.visited_refs.size());
}
TEST(ValueVisitorTest, ValueCast) {
std::unique_ptr<Reference> ref = test::BuildReference("android:color/white");
EXPECT_NE(ValueCast<Reference>(ref.get()), nullptr);
std::unique_ptr<Style> style =
test::StyleBuilder()
.AddItem("android:attr/foo",
test::BuildReference("android:color/black"))
.Build();
EXPECT_NE(ValueCast<Style>(style.get()), nullptr);
EXPECT_EQ(ValueCast<Reference>(style.get()), nullptr);
}
} // namespace aapt
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