| // Copyright 2021 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_i2c/initiator_mock.h" |
| |
| #include <array> |
| #include <chrono> |
| #include <span> |
| |
| #include "gtest/gtest.h" |
| #include "pw_bytes/array.h" |
| #include "pw_bytes/span.h" |
| #include "pw_i2c/address.h" |
| |
| using namespace std::literals::chrono_literals; |
| |
| namespace pw::i2c { |
| namespace { |
| |
| TEST(Transaction, Read) { |
| static constexpr Address kAddress1 = Address::SevenBit<0x01>(); |
| constexpr auto kExpectRead1 = bytes::Array<1, 2, 3, 4, 5>(); |
| |
| static constexpr Address kAddress2 = Address::SevenBit<0x02>(); |
| constexpr auto kExpectRead2 = bytes::Array<3, 4, 5>(); |
| |
| auto expected_transactions = MakeExpectedTransactionArray( |
| {ReadTransaction(OkStatus(), kAddress1, kExpectRead1, 2ms), |
| ReadTransaction(OkStatus(), kAddress2, kExpectRead2, 2ms)}); |
| |
| MockInitiator mocked_i2c(expected_transactions); |
| |
| std::array<std::byte, kExpectRead1.size()> read1; |
| EXPECT_EQ(mocked_i2c.ReadFor(kAddress1, read1, 2ms), OkStatus()); |
| EXPECT_TRUE(std::equal( |
| read1.begin(), read1.end(), kExpectRead1.begin(), kExpectRead1.end())); |
| |
| std::array<std::byte, kExpectRead2.size()> read2; |
| EXPECT_EQ(mocked_i2c.ReadFor(kAddress2, read2, 2ms), OkStatus()); |
| EXPECT_TRUE(std::equal( |
| read2.begin(), read2.end(), kExpectRead2.begin(), kExpectRead2.end())); |
| |
| EXPECT_EQ(mocked_i2c.Finalize(), OkStatus()); |
| } |
| |
| TEST(Transaction, Write) { |
| static constexpr Address kAddress1 = Address::SevenBit<0x01>(); |
| constexpr auto kExpectWrite1 = bytes::Array<1, 2, 3, 4, 5>(); |
| |
| static constexpr Address kAddress2 = Address::SevenBit<0x02>(); |
| constexpr auto kExpectWrite2 = bytes::Array<3, 4, 5>(); |
| |
| auto expected_transactions = MakeExpectedTransactionArray( |
| {WriteTransaction(OkStatus(), kAddress1, kExpectWrite1, 2ms), |
| WriteTransaction(OkStatus(), kAddress2, kExpectWrite2, 2ms)}); |
| |
| MockInitiator mocked_i2c(expected_transactions); |
| |
| EXPECT_EQ(mocked_i2c.WriteFor(kAddress1, kExpectWrite1, 2ms), OkStatus()); |
| |
| EXPECT_EQ(mocked_i2c.WriteFor(kAddress2, kExpectWrite2, 2ms), OkStatus()); |
| |
| EXPECT_EQ(mocked_i2c.Finalize(), OkStatus()); |
| } |
| |
| TEST(Transaction, WriteRead) { |
| static constexpr Address kAddress1 = Address::SevenBit<0x01>(); |
| constexpr auto kExpectWrite1 = bytes::Array<1, 2, 3, 4, 5>(); |
| constexpr auto kExpectRead1 = bytes::Array<1, 2>(); |
| |
| static constexpr Address kAddress2 = Address::SevenBit<0x02>(); |
| constexpr auto kExpectWrite2 = bytes::Array<3, 4, 5>(); |
| constexpr const auto kExpectRead2 = bytes::Array<3, 4>(); |
| |
| auto expected_transactions = MakeExpectedTransactionArray({ |
| Transaction(OkStatus(), kAddress1, kExpectWrite1, kExpectRead1, 2ms), |
| Transaction(OkStatus(), kAddress2, kExpectWrite2, kExpectRead2, 2ms), |
| }); |
| |
| MockInitiator mocked_i2c(expected_transactions); |
| |
| std::array<std::byte, kExpectRead1.size()> read1; |
| EXPECT_EQ(mocked_i2c.WriteReadFor(kAddress1, kExpectWrite1, read1, 2ms), |
| OkStatus()); |
| EXPECT_TRUE(std::equal(read1.begin(), read1.end(), kExpectRead1.begin())); |
| |
| std::array<std::byte, kExpectRead1.size()> read2; |
| EXPECT_EQ(mocked_i2c.WriteReadFor(kAddress2, kExpectWrite2, read2, 2ms), |
| OkStatus()); |
| EXPECT_TRUE(std::equal( |
| read2.begin(), read2.end(), kExpectRead2.begin(), kExpectRead2.end())); |
| |
| EXPECT_EQ(mocked_i2c.Finalize(), OkStatus()); |
| } |
| |
| } // namespace |
| } // namespace pw::i2c |