blob: fb27848f00ba041bd2db270082a27af15b08bdf9 [file] [log] [blame]
// Copyright 2020 The Pigweed Authors
//
// 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
//
// https://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 "pw_rpc/service.h"
#include "gtest/gtest.h"
#include "pw_rpc/internal/method.h"
namespace pw::rpc {
class ServiceTestHelper {
public:
static const internal::Method* FindMethod(Service& service, uint32_t id) {
return service.FindMethod(id);
}
};
namespace {
void InvokeIt(const internal::Method&,
internal::CallContext&,
const internal::Packet&) {}
class ServiceTestMethod : public internal::Method {
public:
constexpr ServiceTestMethod(uint32_t id, char the_value)
: internal::Method(id, InvokeIt), value(the_value) {}
char value; // Add a member so the class is larger than the base Method.
};
class ServiceTestMethodUnion : public internal::MethodUnion {
public:
constexpr ServiceTestMethodUnion(ServiceTestMethod&& method)
: impl_({.service_test = method}) {}
constexpr const internal::Method& method() const { return impl_.method; }
private:
union {
internal::Method method;
ServiceTestMethod service_test;
} impl_;
};
class TestService : public Service {
public:
constexpr TestService() : Service(0xabcd, kMethods) {}
static constexpr std::array<ServiceTestMethodUnion, 3> kMethods = {
ServiceTestMethod(123, 'a'),
ServiceTestMethod(456, 'b'),
ServiceTestMethod(789, 'c'),
};
};
TEST(Service, MultipleMethods_FindMethod_Present) {
TestService service;
EXPECT_EQ(ServiceTestHelper::FindMethod(service, 123),
&TestService::kMethods[0].method());
EXPECT_EQ(ServiceTestHelper::FindMethod(service, 456),
&TestService::kMethods[1].method());
EXPECT_EQ(ServiceTestHelper::FindMethod(service, 789),
&TestService::kMethods[2].method());
}
TEST(Service, MultipleMethods_FindMethod_NotPresent) {
TestService service;
EXPECT_EQ(ServiceTestHelper::FindMethod(service, 0), nullptr);
EXPECT_EQ(ServiceTestHelper::FindMethod(service, 457), nullptr);
EXPECT_EQ(ServiceTestHelper::FindMethod(service, 999), nullptr);
}
class EmptyTestService : public Service {
public:
constexpr EmptyTestService() : Service(0xabcd, kMethods) {}
static constexpr std::array<ServiceTestMethodUnion, 0> kMethods = {};
};
TEST(Service, NoMethods_FindMethod_NotPresent) {
EmptyTestService service;
EXPECT_EQ(ServiceTestHelper::FindMethod(service, 123), nullptr);
EXPECT_EQ(ServiceTestHelper::FindMethod(service, 456), nullptr);
EXPECT_EQ(ServiceTestHelper::FindMethod(service, 789), nullptr);
}
} // namespace
} // namespace pw::rpc