// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc. All rights reserved.
// https://developers.google.com/protocol-buffers/
//
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#ifndef GOOGLE_PROTOBUF_UTIL_INTERNAL_EXPECTING_OBJECTWRITER_H__
#define GOOGLE_PROTOBUF_UTIL_INTERNAL_EXPECTING_OBJECTWRITER_H__
// An implementation of ObjectWriter that automatically sets the
// gmock expectations for the response to a method. Every method
// returns the object itself for chaining.
//
// Usage:
// // Setup
// MockObjectWriter mock;
// ExpectingObjectWriter ow(&mock);
//
// // Set expectation
// ow.StartObject("")
// ->RenderString("key", "value")
// ->EndObject();
//
// // Actual testing
// mock.StartObject(StringPiece())
// ->RenderString("key", "value")
// ->EndObject();
#include <cstdint>
#include <google/protobuf/stubs/common.h>
#include <gmock/gmock.h>
#include <google/protobuf/stubs/strutil.h>
#include <google/protobuf/util/internal/object_writer.h>
namespace google {
namespace protobuf {
namespace util {
namespace converter {
using testing::Eq;
using testing::IsEmpty;
using testing::NanSensitiveDoubleEq;
using testing::NanSensitiveFloatEq;
using testing::Return;
using testing::StrEq;
using testing::TypedEq;
class MockObjectWriter : public ObjectWriter {
public:
MockObjectWriter() {}
MOCK_METHOD(ObjectWriter*, StartObject, (StringPiece), (override));
MOCK_METHOD(ObjectWriter*, EndObject, (), (override));
MOCK_METHOD(ObjectWriter*, StartList, (StringPiece), (override));
MOCK_METHOD(ObjectWriter*, EndList, (), (override));
MOCK_METHOD(ObjectWriter*, RenderBool, (StringPiece, bool), (override));
MOCK_METHOD(ObjectWriter*, RenderInt32, (StringPiece, int32_t),
(override));
MOCK_METHOD(ObjectWriter*, RenderUint32, (StringPiece, uint32_t),
(override));
MOCK_METHOD(ObjectWriter*, RenderInt64, (StringPiece, int64_t),
(override));
MOCK_METHOD(ObjectWriter*, RenderUint64, (StringPiece, uint64_t),
(override));
MOCK_METHOD(ObjectWriter*, RenderDouble, (StringPiece, double),
(override));
MOCK_METHOD(ObjectWriter*, RenderFloat, (StringPiece, float),
(override));
MOCK_METHOD(ObjectWriter*, RenderString,
(StringPiece, StringPiece), (override));
MOCK_METHOD(ObjectWriter*, RenderBytes, (StringPiece, StringPiece),
(override));
MOCK_METHOD(ObjectWriter*, RenderNull, (StringPiece), (override));
};
class ExpectingObjectWriter : public ObjectWriter {
public:
explicit ExpectingObjectWriter(MockObjectWriter* mock) : mock_(mock) {}
ObjectWriter* StartObject(StringPiece name) override {
(name.empty() ? EXPECT_CALL(*mock_, StartObject(IsEmpty()))
: EXPECT_CALL(*mock_, StartObject(Eq(std::string(name)))))
.WillOnce(Return(mock_))
.RetiresOnSaturation();
return this;
}
ObjectWriter* EndObject() override {
EXPECT_CALL(*mock_, EndObject())
.WillOnce(Return(mock_))
.RetiresOnSaturation();
return this;
}
ObjectWriter* StartList(StringPiece name) override {
(name.empty() ? EXPECT_CALL(*mock_, StartList(IsEmpty()))
: EXPECT_CALL(*mock_, StartList(Eq(std::string(name)))))
.WillOnce(Return(mock_))
.RetiresOnSaturation();
return this;
}
ObjectWriter* EndList() override {
EXPECT_CALL(*mock_, EndList())
.WillOnce(Return(mock_))
.RetiresOnSaturation();
return this;
}
ObjectWriter* RenderBool(StringPiece name, bool value) override {
(name.empty()
? EXPECT_CALL(*mock_, RenderBool(IsEmpty(), TypedEq<bool>(value)))
: EXPECT_CALL(*mock_,
RenderBool(Eq(std::string(name)), TypedEq<bool>(value))))
.WillOnce(Return(mock_))
.RetiresOnSaturation();
return this;
}
ObjectWriter* RenderInt32(StringPiece name, int32_t value) override {
(name.empty()
? EXPECT_CALL(*mock_, RenderInt32(IsEmpty(), TypedEq<int32_t>(value)))
: EXPECT_CALL(*mock_, RenderInt32(Eq(std::string(name)),
TypedEq<int32_t>(value))))
.WillOnce(Return(mock_))
.RetiresOnSaturation();
return this;
}
ObjectWriter* RenderUint32(StringPiece name, uint32_t value) override {
(name.empty() ? EXPECT_CALL(*mock_, RenderUint32(IsEmpty(),
TypedEq<uint32_t>(value)))
: EXPECT_CALL(*mock_, RenderUint32(Eq(std::string(name)),
TypedEq<uint32_t>(value))))
.WillOnce(Return(mock_))
.RetiresOnSaturation();
return this;
}
ObjectWriter* RenderInt64(StringPiece name, int64_t value) override {
(name.empty()
? EXPECT_CALL(*mock_, RenderInt64(IsEmpty(), TypedEq<int64_t>(value)))
: EXPECT_CALL(*mock_, RenderInt64(Eq(std::string(name)),
TypedEq<int64_t>(value))))
.WillOnce(Return(mock_))
.RetiresOnSaturation();
return this;
}
ObjectWriter* RenderUint64(StringPiece name, uint64_t value) override {
(name.empty() ? EXPECT_CALL(*mock_, RenderUint64(IsEmpty(),
TypedEq<uint64_t>(value)))
: EXPECT_CALL(*mock_, RenderUint64(Eq(std::string(name)),
TypedEq<uint64_t>(value))))
.WillOnce(Return(mock_))
.RetiresOnSaturation();
return this;
}
ObjectWriter* RenderDouble(StringPiece name, double value) override {
(name.empty()
? EXPECT_CALL(*mock_,
RenderDouble(IsEmpty(), NanSensitiveDoubleEq(value)))
: EXPECT_CALL(*mock_, RenderDouble(Eq(std::string(name)),
NanSensitiveDoubleEq(value))))
.WillOnce(Return(mock_))
.RetiresOnSaturation();
return this;
}
ObjectWriter* RenderFloat(StringPiece name, float value) override {
(name.empty()
? EXPECT_CALL(*mock_,
RenderFloat(IsEmpty(), NanSensitiveFloatEq(value)))
: EXPECT_CALL(*mock_, RenderFloat(Eq(std::string(name)),
NanSensitiveFloatEq(value))))
.WillOnce(Return(mock_))
.RetiresOnSaturation();
return this;
}
ObjectWriter* RenderString(StringPiece name,
StringPiece value) override {
(name.empty() ? EXPECT_CALL(*mock_, RenderString(IsEmpty(),
TypedEq<StringPiece>(
std::string(value))))
: EXPECT_CALL(*mock_, RenderString(Eq(std::string(name)),
TypedEq<StringPiece>(
std::string(value)))))
.WillOnce(Return(mock_))
.RetiresOnSaturation();
return this;
}
virtual ObjectWriter* RenderBytes(StringPiece name, StringPiece value) {
(name.empty()
? EXPECT_CALL(*mock_, RenderBytes(IsEmpty(), TypedEq<StringPiece>(
value.ToString())))
: EXPECT_CALL(*mock_,
RenderBytes(Eq(std::string(name)),
TypedEq<StringPiece>(value.ToString()))))
.WillOnce(Return(mock_))
.RetiresOnSaturation();
return this;
}
ObjectWriter* RenderNull(StringPiece name) override {
(name.empty() ? EXPECT_CALL(*mock_, RenderNull(IsEmpty()))
: EXPECT_CALL(*mock_, RenderNull(Eq(std::string(name))))
.WillOnce(Return(mock_))
.RetiresOnSaturation());
return this;
}
private:
MockObjectWriter* mock_;
GOOGLE_DISALLOW_IMPLICIT_CONSTRUCTORS(ExpectingObjectWriter);
};
} // namespace converter
} // namespace util
} // namespace protobuf
} // namespace google
#endif // GOOGLE_PROTOBUF_UTIL_INTERNAL_EXPECTING_OBJECTWRITER_H__
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