From 69d41f144ad82d652f148c303a168cd07d222d41 Mon Sep 17 00:00:00 2001
From: dvdli <dvdli@google.com>
Date: Wed, 2 Dec 2020 15:20:20 +0800
Subject: fix typo, add comments to describe the tests and fix the loopback
 test

---
 tests/src/pcm_params_test.cc | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'tests/src/pcm_params_test.cc')

diff --git a/tests/src/pcm_params_test.cc b/tests/src/pcm_params_test.cc
index 18c3c2c..c8151e1 100644
--- a/tests/src/pcm_params_test.cc
+++ b/tests/src/pcm_params_test.cc
@@ -40,8 +40,9 @@ namespace tinyalsa {
 namespace testing {
 
 static inline unsigned int OrAllBits(const pcm_mask *mask) {
+    static constexpr size_t kTotalMaskBytes = 32;
     unsigned int res = 0;
-    for (uint32_t i = 0; i < 32 / sizeof(unsigned int); ++i) {
+    for (uint32_t i = 0; i < kTotalMaskBytes / sizeof(pcm_mask::bits[0]); ++i) {
         res |= mask->bits[i];
     }
     return res;
@@ -218,4 +219,4 @@ TEST(PcmParamsTest, GetPlaybackDeviceParams) {
 }
 
 } // namespace testing
-} // namespace tinyalse
+} // namespace tinyalsa
-- 
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