| // 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 <array> |
| #include <optional> |
| |
| #include "gtest/gtest.h" |
| #include "pw_spi/chip_selector.h" |
| #include "pw_spi/device.h" |
| #include "pw_spi/initiator.h" |
| #include "pw_status/status.h" |
| #include "pw_sync/borrow.h" |
| #include "pw_sync/mutex.h" |
| |
| namespace pw::spi { |
| namespace { |
| |
| const pw::spi::Config kConfig = {.polarity = ClockPolarity::kActiveHigh, |
| .phase = ClockPhase::kFallingEdge, |
| .bits_per_word = BitsPerWord(8), |
| .bit_order = BitOrder::kMsbFirst}; |
| |
| class SpiTestDevice : public ::testing::Test { |
| public: |
| SpiTestDevice() |
| : initiator_(), |
| chip_selector_(), |
| initiator_lock_(), |
| borrowable_initiator_(initiator_, initiator_lock_), |
| device_(borrowable_initiator_, kConfig, chip_selector_) {} |
| |
| private: |
| // Stub SPI Initiator/ChipSelect objects, used to exercise public API surface. |
| class TestInitiator : public Initiator { |
| public: |
| Status Configure(const Config& /*config */) override { return OkStatus(); }; |
| Status WriteRead(ConstByteSpan /* write_buffer */, |
| ByteSpan /* read_buffer */) override { |
| return OkStatus(); |
| }; |
| }; |
| |
| class TestChipSelector : public ChipSelector { |
| public: |
| Status SetActive(bool /*active*/) override { return OkStatus(); } |
| }; |
| |
| TestInitiator initiator_; |
| TestChipSelector chip_selector_; |
| sync::VirtualMutex initiator_lock_; |
| sync::Borrowable<Initiator> borrowable_initiator_; |
| Device device_; |
| }; |
| |
| // Simple test ensuring the SPI HAL compiles |
| TEST_F(SpiTestDevice, CompilationSucceeds) { |
| // arrange |
| // act |
| // assert |
| EXPECT_TRUE(true); |
| } |
| |
| } // namespace |
| } // namespace pw::spi |