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Allow for some error in volume testing.

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BUG=616
TESTED=voe_auto_test:VolumeTest.* now passes on a MacBook

Review URL: https://webrtc-codereview.appspot.com/1028005

git-svn-id: http://webrtc.googlecode.com/svn/trunk@3348 4adac7df-926f-26a2-2b94-8c16560cd09d
This commit is contained in:
andrew@webrtc.org 2013-01-09 17:07:02 +00:00
parent d005468e9b
commit 08d660f08e
1 changed files with 20 additions and 6 deletions
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26
webrtc/voice_engine/test/auto_test/standard/volume_test.cc
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@ -10,6 +10,20 @@
#include "after_streaming_fixture.h"
namespace {
void ExpectVolumeNear(int expected, int actual) {
// The hardware volume may be more coarsely quantized than [0, 255], so
// it is not always reasonable to expect to get exactly what we set. This
// allows for some error.
const int kMaxVolumeError = 10;
EXPECT_NEAR(expected, actual, kMaxVolumeError);
EXPECT_GE(actual, 0);
EXPECT_LE(actual, 255);
}
} // namespace
class VolumeTest : public AfterStreamingFixture {
};
@ -33,20 +47,20 @@ TEST_F(VolumeTest, SetVolumeBeforePlayoutWorks) {
EXPECT_EQ(0, voe_volume_control_->SetSpeakerVolume(200));
unsigned int volume;
EXPECT_EQ(0, voe_volume_control_->GetSpeakerVolume(volume));
EXPECT_EQ(200u, volume);
ExpectVolumeNear(200u, volume);
PausePlaying();
ResumePlaying();
EXPECT_EQ(0, voe_volume_control_->GetSpeakerVolume(volume));
// Ensure the volume has not changed after resuming playout.
EXPECT_EQ(200u, volume);
ExpectVolumeNear(200u, volume);
PausePlaying();
EXPECT_EQ(0, voe_volume_control_->SetSpeakerVolume(100));
ResumePlaying();
// Ensure the volume set while paused is retained.
EXPECT_EQ(0, voe_volume_control_->GetSpeakerVolume(volume));
EXPECT_EQ(100u, volume);
ExpectVolumeNear(100u, volume);
EXPECT_EQ(0, voe_volume_control_->SetSpeakerVolume(original_volume));
}
@ -60,20 +74,20 @@ TEST_F(VolumeTest, ManualSetVolumeWorks) {
EXPECT_EQ(0, voe_volume_control_->SetSpeakerVolume(0));
unsigned int volume;
EXPECT_EQ(0, voe_volume_control_->GetSpeakerVolume(volume));
EXPECT_EQ(0u, volume);
ExpectVolumeNear(0u, volume);
Sleep(1000);
TEST_LOG("Setting speaker volume to 100 out of 255.\n");
EXPECT_EQ(0, voe_volume_control_->SetSpeakerVolume(100));
EXPECT_EQ(0, voe_volume_control_->GetSpeakerVolume(volume));
EXPECT_EQ(100u, volume);
ExpectVolumeNear(100u, volume);
Sleep(1000);
// Set the volume to 255 very briefly so we don't blast the poor user
// listening to this. This is just to test the call succeeds.
EXPECT_EQ(0, voe_volume_control_->SetSpeakerVolume(255));
EXPECT_EQ(0, voe_volume_control_->GetSpeakerVolume(volume));
EXPECT_EQ(255u, volume);
ExpectVolumeNear(255u, volume);
TEST_LOG("Setting speaker volume to the original %d out of 255.\n",
original_volume);