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Diffstat (limited to 'cras/src/tests/shm_unittest.cc')
| -rw-r--r-- | cras/src/tests/shm_unittest.cc | 572 |
1 files changed, 0 insertions, 572 deletions
diff --git a/cras/src/tests/shm_unittest.cc b/cras/src/tests/shm_unittest.cc deleted file mode 100644 index b5df1f69..00000000 --- a/cras/src/tests/shm_unittest.cc +++ /dev/null @@ -1,572 +0,0 @@ -// Copyright (c) 2012 The Chromium OS Authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. - -#include <gtest/gtest.h> -#include <stdio.h> - -extern "C" { -#include "cras_shm.h" -#include "cras_types.h" -} - -namespace { - -class ShmTestSuite : public testing::Test { - protected: - virtual void SetUp() { - memset(&shm_, 0, sizeof(shm_)); - shm_.header = - static_cast<cras_audio_shm_header*>(calloc(1, sizeof(*shm_.header))); - shm_.samples = static_cast<uint8_t*>(calloc(1, 2048)); - shm_.samples_info.length = 2048; - cras_shm_set_frame_bytes(&shm_, 4); - - cras_shm_set_used_size(&shm_, 1024); - memcpy(&shm_.header->config, &shm_.config, sizeof(shm_.config)); - - frames_ = 0; - } - - virtual void TearDown() { - free(shm_.header); - free(shm_.samples); - } - - struct cras_audio_shm shm_; - uint8_t* buf_; - size_t frames_; -}; - -// Test that and empty buffer returns 0 readable bytes. -TEST_F(ShmTestSuite, NoneReadableWhenEmpty) { - buf_ = cras_shm_get_readable_frames(&shm_, 0, &frames_); - EXPECT_EQ(0, frames_); - cras_shm_buffer_read(&shm_, frames_); - EXPECT_EQ(0, shm_.header->read_offset[0]); -} - -// Buffer with 100 frames filled. -TEST_F(ShmTestSuite, OneHundredFilled) { - shm_.header->write_offset[0] = 100 * shm_.header->config.frame_bytes; - buf_ = cras_shm_get_readable_frames(&shm_, 0, &frames_); - EXPECT_EQ(100, frames_); - EXPECT_EQ(shm_.samples, buf_); - cras_shm_buffer_read(&shm_, frames_ - 9); - EXPECT_EQ((frames_ - 9) * shm_.config.frame_bytes, - shm_.header->read_offset[0]); - cras_shm_buffer_read(&shm_, 9); - EXPECT_EQ(0, shm_.header->read_offset[0]); - EXPECT_EQ(1, shm_.header->read_buf_idx); -} - -// Buffer with 100 frames filled, 50 read. -TEST_F(ShmTestSuite, OneHundredFilled50Read) { - shm_.header->write_offset[0] = 100 * shm_.config.frame_bytes; - shm_.header->read_offset[0] = 50 * shm_.config.frame_bytes; - buf_ = cras_shm_get_readable_frames(&shm_, 0, &frames_); - EXPECT_EQ(50, frames_); - EXPECT_EQ((shm_.samples + shm_.header->read_offset[0]), buf_); - cras_shm_buffer_read(&shm_, frames_ - 10); - EXPECT_EQ(shm_.header->write_offset[0] - 10 * shm_.config.frame_bytes, - shm_.header->read_offset[0]); - cras_shm_buffer_read(&shm_, 10); - EXPECT_EQ(0, shm_.header->read_offset[0]); -} - -// Buffer with 100 frames filled, 50 read, offset by 25. -TEST_F(ShmTestSuite, OneHundredFilled50Read25offset) { - shm_.header->write_offset[0] = 100 * shm_.config.frame_bytes; - shm_.header->read_offset[0] = 50 * shm_.config.frame_bytes; - buf_ = cras_shm_get_readable_frames(&shm_, 25, &frames_); - EXPECT_EQ(25, frames_); - EXPECT_EQ(shm_.samples + shm_.header->read_offset[0] + - 25 * shm_.header->config.frame_bytes, - (uint8_t*)buf_); -} - -// Test wrapping across buffers. -TEST_F(ShmTestSuite, WrapToNextBuffer) { - uint32_t used_size = cras_shm_used_size(&shm_); - uint32_t used_frames = used_size / cras_shm_frame_bytes(&shm_); - shm_.header->write_offset[0] = (used_size / 2); - shm_.header->read_offset[0] = (used_size / 4); - shm_.header->write_offset[1] = (used_size / 2); - buf_ = cras_shm_get_readable_frames(&shm_, 0, &frames_); - EXPECT_EQ(used_frames / 4, frames_); - EXPECT_EQ(cras_shm_buff_for_idx(&shm_, 0) + (used_size / 4), (uint8_t*)buf_); - buf_ = cras_shm_get_readable_frames(&shm_, frames_, &frames_); - EXPECT_EQ(used_frames / 2, frames_); - EXPECT_EQ(cras_shm_buff_for_idx(&shm_, 1), (uint8_t*)buf_); - /* Mark all but 10 frames as read */ - cras_shm_buffer_read(&shm_, (used_frames / 2) + (used_frames / 4) - 10); - EXPECT_EQ(0, shm_.header->read_offset[0]); - EXPECT_EQ(((used_frames / 2) - 10) * shm_.config.frame_bytes, - shm_.header->read_offset[1]); - EXPECT_EQ(1, shm_.header->read_buf_idx); -} - -// Test wrapping across buffers reading all samples. -TEST_F(ShmTestSuite, WrapToNextBufferReadAll) { - uint32_t used_size = cras_shm_used_size(&shm_); - uint32_t used_frames = used_size / cras_shm_frame_bytes(&shm_); - shm_.header->write_offset[0] = (used_size / 2); - shm_.header->read_offset[0] = (used_size / 4); - shm_.header->write_offset[1] = (used_size / 2); - buf_ = cras_shm_get_readable_frames(&shm_, 0, &frames_); - EXPECT_EQ(used_frames / 4, frames_); - EXPECT_EQ(cras_shm_buff_for_idx(&shm_, 0) + (used_size / 4), (uint8_t*)buf_); - buf_ = cras_shm_get_readable_frames(&shm_, frames_, &frames_); - EXPECT_EQ(used_frames / 2, frames_); - EXPECT_EQ(cras_shm_buff_for_idx(&shm_, 1), (uint8_t*)buf_); - /* Mark all frames as read */ - cras_shm_buffer_read(&shm_, (used_frames / 2) + (used_frames / 4)); - EXPECT_EQ(0, shm_.header->read_offset[0]); - EXPECT_EQ(0, shm_.header->read_offset[1]); - EXPECT_EQ(0, shm_.header->read_buf_idx); -} - -// Test wrapping last buffer. -TEST_F(ShmTestSuite, WrapFromFinalBuffer) { - uint32_t used_size = cras_shm_used_size(&shm_); - uint32_t used_frames = used_size / cras_shm_frame_bytes(&shm_); - uint32_t buf_idx = CRAS_NUM_SHM_BUFFERS - 1; - - shm_.header->read_buf_idx = buf_idx; - shm_.header->write_offset[buf_idx] = (used_size / 2); - shm_.header->read_offset[buf_idx] = (used_size / 4); - shm_.header->write_offset[0] = (used_size / 2); - buf_ = cras_shm_get_readable_frames(&shm_, 0, &frames_); - EXPECT_EQ(used_frames / 4, frames_); - EXPECT_EQ(cras_shm_buff_for_idx(&shm_, buf_idx) + (used_size / 4), - (uint8_t*)buf_); - - buf_ = cras_shm_get_readable_frames(&shm_, frames_, &frames_); - EXPECT_EQ(used_frames / 2, frames_); - EXPECT_EQ(cras_shm_buff_for_idx(&shm_, 0), (uint8_t*)buf_); - /* Mark all but 10 frames as read */ - cras_shm_buffer_read(&shm_, (used_frames / 2) + (used_frames / 4) - 10); - EXPECT_EQ(0, shm_.header->read_offset[buf_idx]); - EXPECT_EQ(((used_frames / 2) - 10) * shm_.config.frame_bytes, - shm_.header->read_offset[0]); - EXPECT_EQ(0, shm_.header->read_buf_idx); -} - -// Test Check available to write returns 0 if not free buffer. -TEST_F(ShmTestSuite, WriteAvailNotFree) { - size_t ret; - shm_.header->write_buf_idx = 0; - shm_.header->write_offset[0] = 100 * shm_.config.frame_bytes; - shm_.header->read_offset[0] = 50 * shm_.config.frame_bytes; - ret = cras_shm_get_num_writeable(&shm_); - EXPECT_EQ(0, ret); -} - -// Test Check available to write returns num_frames if free buffer. -TEST_F(ShmTestSuite, WriteAvailValid) { - size_t ret; - shm_.header->write_buf_idx = 0; - shm_.config.used_size = 480 * shm_.config.frame_bytes; - shm_.header->write_offset[0] = 0; - shm_.header->read_offset[0] = 0; - ret = cras_shm_get_num_writeable(&shm_); - EXPECT_EQ(480, ret); -} - -// Test get frames_written returns the number of frames written. -TEST_F(ShmTestSuite, GetNumWritten) { - size_t ret; - shm_.header->write_buf_idx = 0; - shm_.config.used_size = 480 * shm_.config.frame_bytes; - shm_.header->write_offset[0] = 200 * shm_.config.frame_bytes; - shm_.header->read_offset[0] = 0; - ret = cras_shm_frames_written(&shm_); - EXPECT_EQ(200, ret); -} - -// Test that getting the base of the write buffer returns the correct pointer. -TEST_F(ShmTestSuite, GetWriteBufferBase) { - uint8_t* ret; - - shm_.header->write_buf_idx = 0; - shm_.header->write_offset[0] = 128 * shm_.config.frame_bytes; - shm_.header->write_offset[1] = 128 * shm_.config.frame_bytes; - shm_.header->read_offset[0] = 0; - shm_.header->read_offset[1] = 0; - ret = cras_shm_get_write_buffer_base(&shm_); - EXPECT_EQ(shm_.samples, ret); - - shm_.header->write_buf_idx = 1; - ret = cras_shm_get_write_buffer_base(&shm_); - EXPECT_EQ(shm_.samples + shm_.config.used_size, ret); -} - -TEST_F(ShmTestSuite, SetVolume) { - cras_shm_set_volume_scaler(&shm_, 1.0); - EXPECT_EQ(shm_.header->volume_scaler, 1.0); - cras_shm_set_volume_scaler(&shm_, 1.4); - EXPECT_EQ(shm_.header->volume_scaler, 1.0); - cras_shm_set_volume_scaler(&shm_, -0.5); - EXPECT_EQ(shm_.header->volume_scaler, 0.0); - cras_shm_set_volume_scaler(&shm_, 0.5); - EXPECT_EQ(shm_.header->volume_scaler, 0.5); -} - -// Test that invalid read/write offsets are detected. - -TEST_F(ShmTestSuite, InvalidWriteOffset) { - shm_.header->write_offset[0] = shm_.config.used_size + 50; - shm_.header->read_offset[0] = 0; - buf_ = cras_shm_get_readable_frames(&shm_, 0, &frames_); - EXPECT_EQ(shm_.config.used_size / 4, frames_); -} - -TEST_F(ShmTestSuite, InvalidReadOffset) { - // Should ignore read+_offset and assume 0. - shm_.header->write_offset[0] = 44; - shm_.header->read_offset[0] = shm_.config.used_size + 25; - buf_ = cras_shm_get_readable_frames(&shm_, 0, &frames_); - EXPECT_EQ(shm_.header->write_offset[0] / shm_.config.frame_bytes, frames_); - EXPECT_EQ(shm_.samples, (uint8_t*)buf_); -} - -TEST_F(ShmTestSuite, InvalidReadAndWriteOffset) { - shm_.header->write_offset[0] = shm_.config.used_size + 50; - shm_.header->read_offset[0] = shm_.config.used_size + 25; - buf_ = cras_shm_get_readable_frames(&shm_, 0, &frames_); - EXPECT_EQ(shm_.config.used_size / 4, frames_); -} - -TEST_F(ShmTestSuite, InputBufferOverrun) { - int rc; - shm_.header->write_offset[0] = 0; - shm_.header->read_offset[0] = 0; - shm_.header->write_offset[1] = 0; - shm_.header->read_offset[1] = 0; - - shm_.header->write_buf_idx = 0; - shm_.header->read_buf_idx = 0; - - EXPECT_EQ(0, cras_shm_num_overruns(&shm_)); - rc = cras_shm_check_write_overrun(&shm_); - EXPECT_EQ(0, rc); - cras_shm_buffer_written(&shm_, 100); - cras_shm_buffer_write_complete(&shm_); - - rc = cras_shm_check_write_overrun(&shm_); - EXPECT_EQ(0, rc); - cras_shm_buffer_written(&shm_, 100); - cras_shm_buffer_write_complete(&shm_); - - // Assert two consecutive writes causes overrun. - rc = cras_shm_check_write_overrun(&shm_); - EXPECT_EQ(1, rc); - EXPECT_EQ(1, cras_shm_num_overruns(&shm_)); -} - -TEST_F(ShmTestSuite, GetWritableFramesNeedToWrite) { - unsigned buffer_size = 480; - unsigned limit = 480; - unsigned written = 200; - unsigned frames; - shm_.header->write_buf_idx = 0; - shm_.config.used_size = buffer_size * shm_.config.frame_bytes; - shm_.header->write_offset[0] = written * shm_.config.frame_bytes; - buf_ = cras_shm_get_writeable_frames(&shm_, limit, &frames); - EXPECT_EQ(limit - written, frames); - EXPECT_EQ(shm_.samples + shm_.header->write_offset[0], buf_); -} - -TEST_F(ShmTestSuite, GetWritableFramesNoNeedToWrite) { - unsigned buffer_size = 480; - unsigned limit = 240; - unsigned written = 300; - unsigned frames; - shm_.header->write_buf_idx = 0; - shm_.config.used_size = buffer_size * shm_.config.frame_bytes; - shm_.header->write_offset[0] = written * shm_.config.frame_bytes; - buf_ = cras_shm_get_writeable_frames(&shm_, limit, &frames); - EXPECT_EQ(0, frames); - EXPECT_EQ(shm_.samples + shm_.header->write_offset[0], buf_); -} - -// Test wrapping of buffers that don't start at normal offsets. -TEST_F(ShmTestSuite, WrapWithNonstandardBufferLocations) { - uint32_t frame_bytes = cras_shm_frame_bytes(&shm_); - uint32_t used_frames = 24; - uint32_t used_size = used_frames * frame_bytes; - cras_shm_set_used_size(&shm_, used_size); - cras_shm_set_buffer_offset(&shm_, 0, 15); - cras_shm_set_buffer_offset(&shm_, 1, 479); - - shm_.header->read_offset[0] = (used_frames / 4) * shm_.config.frame_bytes; - shm_.header->write_offset[0] = (used_frames / 2) * shm_.config.frame_bytes; - shm_.header->read_offset[1] = 0; - shm_.header->write_offset[1] = (used_frames / 3) * shm_.config.frame_bytes; - buf_ = cras_shm_get_readable_frames(&shm_, 0, &frames_); - EXPECT_EQ(used_frames / 4, frames_); - EXPECT_EQ(cras_shm_buff_for_idx(&shm_, 0) + shm_.header->read_offset[0], - (uint8_t*)buf_); - buf_ = cras_shm_get_readable_frames(&shm_, frames_, &frames_); - EXPECT_EQ(used_frames / 3, frames_); - EXPECT_EQ(cras_shm_buff_for_idx(&shm_, 1), (uint8_t*)buf_); - /* Mark all but 5 frames as read */ - cras_shm_buffer_read(&shm_, (used_frames / 4) + (used_frames / 3) - 5); - EXPECT_EQ(0, shm_.header->read_offset[0]); - EXPECT_EQ(((used_frames / 3) - 5) * shm_.config.frame_bytes, - shm_.header->read_offset[1]); -} - -TEST_F(ShmTestSuite, PlaybackWithDifferentSequentialBufferLocations) { - uint32_t frame_bytes = cras_shm_frame_bytes(&shm_); - uint32_t used_frames = 24; - uint32_t used_size = used_frames * frame_bytes; - cras_shm_set_used_size(&shm_, used_size); - - uint32_t first_offset = 2.7 * used_size; - /* Make samples area long enough to hold all of the buffers starting from - * first_offset, with an extra 'used_size' bytes of free space at the end. */ - uint32_t samples_length = - first_offset + used_size * (CRAS_NUM_SHM_BUFFERS + 1); - free(shm_.samples); - shm_.samples = static_cast<uint8_t*>(calloc(1, samples_length)); - shm_.samples_info.length = samples_length; - uint32_t total_frames_written = 0; - - // Fill all of the buffers. - for (unsigned int i = 0; i < CRAS_NUM_SHM_BUFFERS; i++) { - cras_shm_set_buffer_offset(&shm_, i, first_offset + i * used_size); - shm_.header->write_in_progress[i] = 1; - shm_.header->write_offset[i] = 0; - frames_ = MIN(10 + i, used_frames); - cras_shm_buffer_written(&shm_, frames_); - total_frames_written += frames_; - cras_shm_buffer_write_complete(&shm_); - } - - uint32_t total_frames_available = 0; - - // Consume all available frames. - while ((buf_ = cras_shm_get_readable_frames(&shm_, 0, &frames_))) { - total_frames_available += frames_; - - EXPECT_GE(buf_, shm_.samples); - EXPECT_LE(buf_ + frames_, shm_.samples + samples_length); - cras_shm_buffer_read(&shm_, frames_); - } - - EXPECT_EQ(total_frames_written, total_frames_available); - - uint32_t second_offset = 1.2 * used_size; - - // Fill half of the buffers. - for (unsigned int i = 0; i < CRAS_NUM_SHM_BUFFERS / 2; i++) { - cras_shm_set_buffer_offset(&shm_, i, second_offset + i * used_size); - shm_.header->write_in_progress[i] = 1; - shm_.header->write_offset[i] = 0; - frames_ = MIN(3 + 2 * i, used_frames); - cras_shm_buffer_written(&shm_, frames_); - total_frames_written += frames_; - cras_shm_buffer_write_complete(&shm_); - } - - // Consume all available frames. - while ((buf_ = cras_shm_get_readable_frames(&shm_, 0, &frames_))) { - total_frames_available += frames_; - - EXPECT_GE(buf_, shm_.samples); - EXPECT_LE(buf_ + frames_, shm_.samples + samples_length); - cras_shm_buffer_read(&shm_, frames_); - } - - EXPECT_EQ(total_frames_written, total_frames_available); - - // Fill rest of the buffers. - for (unsigned int i = CRAS_NUM_SHM_BUFFERS / 2; i < CRAS_NUM_SHM_BUFFERS; - i++) { - cras_shm_set_buffer_offset(&shm_, i, second_offset + i * used_size); - shm_.header->write_in_progress[i] = 1; - shm_.header->write_offset[i] = 0; - frames_ = MIN(3 + 2 * i, used_frames); - cras_shm_buffer_written(&shm_, frames_); - total_frames_written += frames_; - cras_shm_buffer_write_complete(&shm_); - } - - // Consume all available frames. - while ((buf_ = cras_shm_get_readable_frames(&shm_, 0, &frames_))) { - total_frames_available += frames_; - - EXPECT_GE(buf_, shm_.samples); - EXPECT_LE(buf_ + frames_, shm_.samples + samples_length); - cras_shm_buffer_read(&shm_, frames_); - } - - EXPECT_EQ(total_frames_written, total_frames_available); -} - -TEST_F(ShmTestSuite, GetCheckedBufferOffset) { - uint32_t used_size = cras_shm_used_size(&shm_); - uint32_t samples_length = used_size * 8; - shm_.samples_info.length = samples_length; - - uint32_t offset; - - for (unsigned int i = 0; i < CRAS_NUM_SHM_BUFFERS; i++) { - shm_.header->buffer_offset[i] = 0; - offset = cras_shm_get_checked_buffer_offset(&shm_, i); - EXPECT_EQ(0, offset) << "Expected valid buffer offset for buffer " << i; - - shm_.header->buffer_offset[i] = used_size; - offset = cras_shm_get_checked_buffer_offset(&shm_, i); - EXPECT_EQ(used_size, offset) - << "Expected valid buffer offset for buffer " << i; - - shm_.header->buffer_offset[i] = samples_length - 1; - offset = cras_shm_get_checked_buffer_offset(&shm_, i); - EXPECT_EQ(samples_length - 1, offset) - << "Expected valid buffer offset for buffer " << i; - - shm_.header->buffer_offset[i] = samples_length; - offset = cras_shm_get_checked_buffer_offset(&shm_, i); - EXPECT_EQ(samples_length, offset) - << "Expected valid buffer offset for buffer " << i; - - shm_.header->buffer_offset[i] = samples_length + 1; - offset = cras_shm_get_checked_buffer_offset(&shm_, i); - EXPECT_EQ(samples_length, offset) - << "Expected invalid buffer offset for buffer " << i; - - shm_.header->buffer_offset[i] = samples_length + used_size; - offset = cras_shm_get_checked_buffer_offset(&shm_, i); - EXPECT_EQ(samples_length, offset) - << "Expected invalid buffer offset for buffer " << i; - } -} - -TEST_F(ShmTestSuite, GetCheckedReadOffset) { - uint32_t used_size = cras_shm_used_size(&shm_); - uint32_t samples_length = used_size * 8; - shm_.samples_info.length = samples_length; - - uint32_t offset; - - for (unsigned int i = 0; i < CRAS_NUM_SHM_BUFFERS; i++) { - shm_.header->read_offset[i] = 0; - offset = cras_shm_get_checked_read_offset(&shm_, i); - EXPECT_EQ(0, offset) << "Expected valid read offset for buffer " << i; - - shm_.header->read_offset[i] = used_size / 2; - offset = cras_shm_get_checked_read_offset(&shm_, i); - EXPECT_EQ(used_size / 2, offset) - << "Expected valid read offset for buffer " << i; - - shm_.header->read_offset[i] = used_size; - offset = cras_shm_get_checked_read_offset(&shm_, i); - EXPECT_EQ(used_size, offset) - << "Expected valid read offset for buffer " << i; - - // Read offsets should not be greater than used_size. - shm_.header->read_offset[i] = used_size + 1; - offset = cras_shm_get_checked_read_offset(&shm_, i); - EXPECT_EQ(0, offset) << "Expected invalid read offset for buffer " << i; - - shm_.header->buffer_offset[i] = samples_length - used_size / 2; - - shm_.header->read_offset[i] = 0; - offset = cras_shm_get_checked_read_offset(&shm_, i); - EXPECT_EQ(0, offset) << "Expected valid read offset for buffer " << i; - - shm_.header->read_offset[i] = used_size / 4; - offset = cras_shm_get_checked_read_offset(&shm_, i); - EXPECT_EQ(used_size / 4, offset) - << "Expected valid read offset for buffer " << i; - - shm_.header->read_offset[i] = used_size / 2; - offset = cras_shm_get_checked_read_offset(&shm_, i); - EXPECT_EQ(used_size / 2, offset) - << "Expected valid read offset for buffer " << i; - - shm_.header->read_offset[i] = used_size / 2 + 1; - offset = cras_shm_get_checked_read_offset(&shm_, i); - EXPECT_EQ(0, offset) << "Expected invalid read offset for buffer " << i; - - shm_.header->read_offset[i] = used_size; - offset = cras_shm_get_checked_read_offset(&shm_, i); - EXPECT_EQ(0, offset) << "Expected invalid read offset for buffer " << i; - - shm_.header->read_offset[i] = used_size + 1; - offset = cras_shm_get_checked_read_offset(&shm_, i); - EXPECT_EQ(0, offset) << "Expected invalid read offset for buffer " << i; - } -} - -TEST_F(ShmTestSuite, GetCheckedWriteOffset) { - uint32_t used_size = cras_shm_used_size(&shm_); - uint32_t samples_length = used_size * 8; - shm_.samples_info.length = samples_length; - - uint32_t offset; - - for (unsigned int i = 0; i < CRAS_NUM_SHM_BUFFERS; i++) { - shm_.header->write_offset[i] = 0; - offset = cras_shm_get_checked_write_offset(&shm_, i); - EXPECT_EQ(0, offset) << "Expected valid write offset for buffer " << i; - - shm_.header->write_offset[i] = used_size / 2; - offset = cras_shm_get_checked_write_offset(&shm_, i); - EXPECT_EQ(used_size / 2, offset) - << "Expected valid write offset for buffer " << i; - - shm_.header->write_offset[i] = used_size; - offset = cras_shm_get_checked_write_offset(&shm_, i); - EXPECT_EQ(used_size, offset) - << "Expected valid write offset for buffer " << i; - - // Write offsets should not be greater than used_size. - shm_.header->write_offset[i] = used_size + 1; - offset = cras_shm_get_checked_write_offset(&shm_, i); - EXPECT_EQ(used_size, offset) - << "Expected invalid write offset for buffer " << i; - - uint32_t buffer_offset = samples_length - used_size / 2; - shm_.header->buffer_offset[i] = buffer_offset; - - shm_.header->write_offset[i] = 0; - offset = cras_shm_get_checked_write_offset(&shm_, i); - EXPECT_EQ(0, offset) << "Expected valid write offset for buffer " << i; - - shm_.header->write_offset[i] = used_size / 4; - offset = cras_shm_get_checked_write_offset(&shm_, i); - EXPECT_EQ(used_size / 4, offset) - << "Expected valid write offset for buffer " << i; - - shm_.header->write_offset[i] = used_size / 2; - offset = cras_shm_get_checked_write_offset(&shm_, i); - EXPECT_EQ(used_size / 2, offset) - << "Expected valid write offset for buffer " << i; - - // Write offsets should not be longer than the samples area. - shm_.header->write_offset[i] = used_size / 2 + 1; - offset = cras_shm_get_checked_write_offset(&shm_, i); - EXPECT_EQ(samples_length - buffer_offset, offset) - << "Expected invalid write offset for buffer " << i; - - shm_.header->write_offset[i] = used_size; - offset = cras_shm_get_checked_write_offset(&shm_, i); - EXPECT_EQ(samples_length - buffer_offset, offset) - << "Expected invalid write offset for buffer " << i; - - shm_.header->write_offset[i] = used_size + 1; - offset = cras_shm_get_checked_write_offset(&shm_, i); - EXPECT_EQ(samples_length - buffer_offset, offset) - << "Expected invalid write offset for buffer " << i; - } -} - -} // namespace - -int main(int argc, char** argv) { - ::testing::InitGoogleTest(&argc, argv); - return RUN_ALL_TESTS(); -} |