94 lines
3.1 KiB
C++
94 lines
3.1 KiB
C++
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// Copyright 2021 The Pigweed Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not
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// use this file except in compliance with the License. You may obtain a copy of
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// the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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// License for the specific language governing permissions and limitations under
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// the License.
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#include "pw_i2c/device.h"
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#include <chrono>
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#include "gtest/gtest.h"
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#include "pw_bytes/byte_builder.h"
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#include "pw_containers/algorithm.h"
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#include "pw_i2c/initiator_mock.h"
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using namespace std::literals::chrono_literals;
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namespace pw::i2c {
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namespace {
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TEST(Device, WriteReadForOk) {
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constexpr Address kTestDeviceAddress = Address::SevenBit<0x3F>();
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constexpr auto kExpectWrite1 = bytes::Array<1, 2, 3>();
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constexpr auto kExpectRead1 = bytes::Array<1, 2>();
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auto expected_transactions = MakeExpectedTransactionArray({Transaction(
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OkStatus(), kTestDeviceAddress, kExpectWrite1, kExpectRead1, 2ms)});
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MockInitiator initiator(expected_transactions);
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Device device = Device(initiator, kTestDeviceAddress);
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std::array<std::byte, kExpectRead1.size()> read1;
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EXPECT_EQ(device.WriteReadFor(kExpectWrite1, read1, 2ms), OkStatus());
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EXPECT_TRUE(pw::containers::Equal(read1, kExpectRead1));
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EXPECT_EQ(initiator.Finalize(), OkStatus());
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}
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TEST(Device, WriteForOk) {
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constexpr Address kTestDeviceAddress = Address::SevenBit<0x3F>();
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constexpr auto kExpectWrite1 = bytes::Array<1, 2, 3>();
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auto expected_transactions = MakeExpectedTransactionArray(
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{WriteTransaction(OkStatus(), kTestDeviceAddress, kExpectWrite1, 2ms)});
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MockInitiator initiator(expected_transactions);
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Device device = Device(initiator, kTestDeviceAddress);
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EXPECT_EQ(device.WriteFor(kExpectWrite1, 2ms), OkStatus());
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EXPECT_EQ(initiator.Finalize(), OkStatus());
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}
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TEST(Device, ReadForOk) {
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constexpr Address kTestDeviceAddress = Address::SevenBit<0x3F>();
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constexpr auto kExpectRead1 = bytes::Array<1, 2, 3>();
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auto expected_transactions = MakeExpectedTransactionArray(
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{ReadTransaction(OkStatus(), kTestDeviceAddress, kExpectRead1, 2ms)});
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MockInitiator initiator(expected_transactions);
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Device device = Device(initiator, kTestDeviceAddress);
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std::array<std::byte, kExpectRead1.size()> read1;
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EXPECT_EQ(device.ReadFor(read1, 2ms), OkStatus());
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EXPECT_EQ(initiator.Finalize(), OkStatus());
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}
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TEST(Device, ProbeDeviceForOk) {
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constexpr Address kTestDeviceAddress = Address::SevenBit<0x3F>();
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auto expected_transactions = MakeExpectedTransactionArray(
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{ProbeTransaction(OkStatus(), kTestDeviceAddress, 2ms)});
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MockInitiator initiator(expected_transactions);
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Device device = Device(initiator, kTestDeviceAddress);
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EXPECT_EQ(initiator.ProbeDeviceFor(kTestDeviceAddress, 2ms), OkStatus());
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EXPECT_EQ(initiator.Finalize(), OkStatus());
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}
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} // namespace
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} // namespace pw::i2c
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