add unit tests for pcm_* functions

1 files changed, 103 insertions, 0 deletions

diff --git a/tests/src/pcm_test.cc b/tests/src/pcm_test.cc
new file mode 100644
index 0000000..cf88fb7
--- /dev/null
+++ b/tests/src/pcm_test.cc
@@ -0,0 +1,103 @@
+/* pcm_out_test.c
+**
+** Copyright 2020, The Android Open Source Project
+**
+** Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are met:
+**     * Redistributions of source code must retain the above copyright
+**       notice, this list of conditions and the following disclaimer.
+**     * Redistributions in binary form must reproduce the above copyright
+**       notice, this list of conditions and the following disclaimer in the
+**       documentation and/or other materials provided with the distribution.
+**     * Neither the name of The Android Open Source Project nor the names of
+**       its contributors may be used to endorse or promote products derived
+**       from this software without specific prior written permission.
+**
+** THIS SOFTWARE IS PROVIDED BY The Android Open Source Project ``AS IS'' AND
+** ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+** ARE DISCLAIMED. IN NO EVENT SHALL The Android Open Source Project BE LIABLE
+** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+** DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+** SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+** CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+** LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+** OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+** DAMAGE.
+*/
+
+#include <string>
+#include <iostream>
+
+#include <gtest/gtest.h>
+
+#include "tinyalsa/pcm.h"
+
+namespace tinyalsa {
+namespace testing {
+
+TEST(PcmTest, FormatToBits) {
+    // FIXME: Should we return 16 bits for INVALID?
+    ASSERT_EQ(pcm_format_to_bits(PCM_FORMAT_INVALID), 16);
+
+    ASSERT_EQ(pcm_format_to_bits(PCM_FORMAT_S16_LE), 16);
+    ASSERT_EQ(pcm_format_to_bits(PCM_FORMAT_S32_LE), 32);
+    ASSERT_EQ(pcm_format_to_bits(PCM_FORMAT_S8), 8);
+    ASSERT_EQ(pcm_format_to_bits(PCM_FORMAT_S24_LE), 32);
+    ASSERT_EQ(pcm_format_to_bits(PCM_FORMAT_S24_3LE), 24);
+    ASSERT_EQ(pcm_format_to_bits(PCM_FORMAT_S16_BE), 16);
+    ASSERT_EQ(pcm_format_to_bits(PCM_FORMAT_S24_BE), 32);
+    ASSERT_EQ(pcm_format_to_bits(PCM_FORMAT_S24_3BE), 24);
+    ASSERT_EQ(pcm_format_to_bits(PCM_FORMAT_S32_BE), 32);
+}
+
+TEST(PcmTest, OpenAndCloseOutPcm) {
+    static constexpr unsigned int kDefaultChannels = 2;
+    static constexpr unsigned int kDefaultSamplingRate = 48000;
+    static constexpr unsigned int kDefaultPeriodSize = 1024;
+    static constexpr unsigned int kDefaultPeriodCount = 3;
+    static constexpr pcm_config kDefaultConfig = {
+        .channels = kDefaultChannels,
+        .rate = kDefaultSamplingRate,
+        .period_size = kDefaultPeriodSize,
+        .period_count = kDefaultPeriodCount,
+        .format = PCM_FORMAT_S16_LE,
+        .start_threshold = kDefaultPeriodSize,
+        .stop_threshold = kDefaultPeriodSize * kDefaultPeriodCount,
+        .silence_threshold = 0,
+        .silence_size = 0,
+    };
+
+    pcm *pcm_object = pcm_open(1000, 1000, PCM_OUT, &kDefaultConfig);
+    ASSERT_FALSE(pcm_is_ready(pcm_object));
+    ASSERT_EQ(pcm_close(pcm_object), 0);
+
+    // assume card 0, device 0 is always available
+    pcm_object = pcm_open(0, 0, PCM_OUT, &kDefaultConfig);
+    ASSERT_TRUE(pcm_is_ready(pcm_object));
+    ASSERT_EQ(pcm_close(pcm_object), 0);
+
+    pcm_object = pcm_open(0, 0, PCM_OUT | PCM_MMAP, &kDefaultConfig);
+    ASSERT_TRUE(pcm_is_ready(pcm_object));
+    ASSERT_EQ(pcm_close(pcm_object), 0);
+
+    pcm_object = pcm_open(0, 0, PCM_OUT | PCM_MMAP | PCM_NOIRQ, &kDefaultConfig);
+    ASSERT_TRUE(pcm_is_ready(pcm_object));
+    ASSERT_EQ(pcm_close(pcm_object), 0);
+
+    pcm_object = pcm_open(0, 0, PCM_OUT | PCM_NONBLOCK, &kDefaultConfig);
+    ASSERT_TRUE(pcm_is_ready(pcm_object));
+    ASSERT_EQ(pcm_close(pcm_object), 0);
+
+    pcm_object = pcm_open(0, 0, PCM_OUT | PCM_MONOTONIC, &kDefaultConfig);
+    ASSERT_TRUE(pcm_is_ready(pcm_object));
+    ASSERT_EQ(pcm_close(pcm_object), 0);
+
+    std::string name = "hw:0,0";
+    pcm_object = pcm_open_by_name(name.c_str(), PCM_OUT, &kDefaultConfig);
+    ASSERT_TRUE(pcm_is_ready(pcm_object));
+    ASSERT_EQ(pcm_close(pcm_object), 0);
+}
+
+} // namespace testing
+} // namespace tinyalse