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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <string>
#include <utility>
#include "base/test/gtest_util.h"
#include "base/values.h"
#include "mojo/public/cpp/base/values_mojom_traits.h"
#include "mojo/public/cpp/bindings/lib/validation_context.h"
#include "mojo/public/cpp/bindings/lib/validation_errors.h"
#include "mojo/public/cpp/test_support/test_utils.h"
#include "mojo/public/mojom/base/values.mojom.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace mojo_base {
TEST(ValuesStructTraitsTest, NullValue) {
base::Value in;
base::Value out;
ASSERT_TRUE(mojo::test::SerializeAndDeserialize<mojom::Value>(in, out));
EXPECT_EQ(in, out);
}
TEST(ValuesStructTraitsTest, BoolValue) {
static constexpr bool kTestCases[] = {true, false};
for (auto& test_case : kTestCases) {
base::Value in(test_case);
base::Value out;
ASSERT_TRUE(mojo::test::SerializeAndDeserialize<mojom::Value>(in, out));
EXPECT_EQ(in, out);
}
}
TEST(ValuesStructTraitsTest, IntValue) {
static constexpr int kTestCases[] = {0, -1, 1,
std::numeric_limits<int>::min(),
std::numeric_limits<int>::max()};
for (auto& test_case : kTestCases) {
base::Value in(test_case);
base::Value out;
ASSERT_TRUE(mojo::test::SerializeAndDeserialize<mojom::Value>(in, out));
EXPECT_EQ(in, out);
}
}
TEST(ValuesStructTraitsTest, DoubleValue) {
static constexpr double kTestCases[] = {-0.0,
+0.0,
-1.0,
+1.0,
std::numeric_limits<double>::min(),
std::numeric_limits<double>::max()};
for (auto& test_case : kTestCases) {
base::Value in(test_case);
base::Value out;
ASSERT_TRUE(mojo::test::SerializeAndDeserialize<mojom::Value>(in, out));
EXPECT_EQ(in, out);
}
}
TEST(ValuesStructTraitsTest, StringValue) {
static constexpr const char* kTestCases[] = {
"", "ascii",
// 🎆: Unicode FIREWORKS
"\xf0\x9f\x8e\x86",
};
for (auto* test_case : kTestCases) {
base::Value in(test_case);
base::Value out;
ASSERT_TRUE(mojo::test::SerializeAndDeserialize<mojom::Value>(in, out));
EXPECT_EQ(in, out);
}
}
TEST(ValuesStructTraitsTest, BinaryValue) {
std::vector<char> kBinaryData = {'\x00', '\x80', '\xff', '\x7f', '\x01'};
base::Value in(std::move(kBinaryData));
base::Value out;
ASSERT_TRUE(mojo::test::SerializeAndDeserialize<mojom::Value>(in, out));
EXPECT_EQ(in, out);
}
TEST(ValuesStructTraitsTest, DictionaryValue) {
// Note: here and below, it would be nice to use an initializer list, but
// move-only types and initializer lists don't mix. Initializer lists can't be
// modified: thus it's not possible to move.
base::Value::Dict dict;
dict.Set("null", base::Value());
dict.Set("bool", false);
dict.Set("int", 0);
dict.Set("double", 0.0);
dict.Set("string", "0");
dict.Set("binary", base::Value::BlobStorage({0}));
dict.Set("dictionary", base::Value::Dict());
dict.Set("list", base::Value::List());
base::Value in(std::move(dict));
base::Value out;
ASSERT_TRUE(mojo::test::SerializeAndDeserialize<mojom::Value>(in, out));
EXPECT_EQ(in, out);
base::Value::Dict in_dict = in.GetDict().Clone();
base::Value::Dict out_dict;
ASSERT_TRUE(mojo::test::SerializeAndDeserialize<mojom::DictionaryValue>(
in_dict, out_dict));
EXPECT_EQ(in_dict, out_dict);
}
TEST(ValuesStructTraitsTest, ListValue) {
base::Value::List list;
list.Append(base::Value());
list.Append(false);
list.Append(0);
list.Append(0.0);
list.Append("0");
list.Append(base::Value::BlobStorage({0}));
list.Append(base::Value::Dict());
list.Append(base::Value::List());
base::Value in(std::move(list));
base::Value out;
ASSERT_TRUE(mojo::test::SerializeAndDeserialize<mojom::Value>(in, out));
EXPECT_EQ(in, out);
base::Value::List in_list = in.GetList().Clone();
base::Value::List out_list;
ASSERT_TRUE(
mojo::test::SerializeAndDeserialize<mojom::ListValue>(in_list, out_list));
EXPECT_EQ(in_list, out_list);
}
// A deeply nested base::Value should trigger a deserialization error.
TEST(ValuesStructTraitsTest, DeeplyNestedValue) {
base::Value in;
for (int i = 0; i < kMaxRecursionDepth; ++i) {
base::Value::List list;
list.Append(std::move(in));
in = base::Value(std::move(list));
}
// It should work if the depth is less than kMaxRecursionDepth.
{
mojo::internal::ValidationErrorObserverForTesting warning_observer{
base::DoNothing()};
base::Value out;
ASSERT_TRUE(mojo::test::SerializeAndDeserialize<mojom::Value>(in, out));
EXPECT_EQ(mojo::internal::VALIDATION_ERROR_NONE,
warning_observer.last_error());
}
// Add one more depth.
base::Value::List list;
list.Append(std::move(in));
in = base::Value(std::move(list));
// It gets VALIDATION_ERROR_MAX_RECURSION_DEPTH error.
{
mojo::internal::ValidationErrorObserverForTesting warning_observer{
base::DoNothing()};
base::Value out;
ASSERT_FALSE(mojo::test::SerializeAndDeserialize<mojom::Value>(in, out));
EXPECT_EQ(mojo::internal::VALIDATION_ERROR_MAX_RECURSION_DEPTH,
warning_observer.last_error());
}
}
} // namespace mojo_base
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