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/*
* Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "webrtc/modules/audio_processing/transient/wpd_node.h"
#include <string.h>
#include "testing/gtest/include/gtest/gtest.h"
#include "webrtc/system_wrappers/interface/scoped_ptr.h"
namespace webrtc {
static const size_t kDataLength = 5;
static const float kTolerance = 0.0001f;
static const size_t kParentDataLength = kDataLength * 2;
static const float kParentData[kParentDataLength] =
{1.f, 2.f, 3.f, 4.f, 5.f, 6.f, 7.f, 8.f, 9.f, 10.f};
static const float kCoefficients[] = {0.2f, -0.3f, 0.5f, -0.7f, 0.11f};
static const size_t kCoefficientsLength = sizeof(kCoefficients) /
sizeof(kCoefficients[0]);
TEST(WPDNodeTest, Accessors) {
WPDNode node(kDataLength, kCoefficients, kCoefficientsLength);
EXPECT_EQ(0, node.set_data(kParentData, kDataLength));
EXPECT_EQ(0, memcmp(node.data(),
kParentData,
kDataLength * sizeof(node.data()[0])));
}
TEST(WPDNodeTest, UpdateThatOnlyDecimates) {
const float kIndentyCoefficient = 1.f;
WPDNode node(kDataLength, &kIndentyCoefficient, 1);
EXPECT_EQ(0, node.Update(kParentData, kParentDataLength));
for (size_t i = 0; i < kDataLength; ++i) {
EXPECT_FLOAT_EQ(kParentData[i * 2 + 1], node.data()[i]);
}
}
TEST(WPDNodeTest, UpdateWithArbitraryDataAndArbitraryFilter) {
WPDNode node(kDataLength, kCoefficients, kCoefficientsLength);
EXPECT_EQ(0, node.Update(kParentData, kParentDataLength));
EXPECT_NEAR(0.1f, node.data()[0], kTolerance);
EXPECT_NEAR(0.2f, node.data()[1], kTolerance);
EXPECT_NEAR(0.18f, node.data()[2], kTolerance);
EXPECT_NEAR(0.56f, node.data()[3], kTolerance);
EXPECT_NEAR(0.94f, node.data()[4], kTolerance);
}
TEST(WPDNodeTest, ExpectedErrorReturnValue) {
WPDNode node(kDataLength, kCoefficients, kCoefficientsLength);
EXPECT_EQ(-1, node.Update(kParentData, kParentDataLength - 1));
EXPECT_EQ(-1, node.Update(NULL, kParentDataLength));
EXPECT_EQ(-1, node.set_data(kParentData, kDataLength - 1));
EXPECT_EQ(-1, node.set_data(NULL, kDataLength));
}
} // namespace webrtc
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