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Side by Side Diff: webrtc/common_audio/signal_processing/real_fft_unittest.cc

Issue 2719733002: Replace NULL with nullptr or null in webrtc/audio/ and common_audio/. (Closed)
Patch Set: Fixing test. Created 3 years, 9 months ago
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1 /* 1 /*
2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. 2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
3 * 3 *
4 * Use of this source code is governed by a BSD-style license 4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source 5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found 6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may 7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree. 8 * be found in the AUTHORS file in the root of the source tree.
9 */ 9 */
10 10
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35 35
36 class RealFFTTest : public ::testing::Test { 36 class RealFFTTest : public ::testing::Test {
37 protected: 37 protected:
38 RealFFTTest() { 38 RealFFTTest() {
39 WebRtcSpl_Init(); 39 WebRtcSpl_Init();
40 } 40 }
41 }; 41 };
42 42
43 TEST_F(RealFFTTest, CreateFailsOnBadInput) { 43 TEST_F(RealFFTTest, CreateFailsOnBadInput) {
44 RealFFT* fft = WebRtcSpl_CreateRealFFT(11); 44 RealFFT* fft = WebRtcSpl_CreateRealFFT(11);
45 EXPECT_TRUE(fft == NULL); 45 EXPECT_TRUE(fft == nullptr);
46 fft = WebRtcSpl_CreateRealFFT(-1); 46 fft = WebRtcSpl_CreateRealFFT(-1);
47 EXPECT_TRUE(fft == NULL); 47 EXPECT_TRUE(fft == nullptr);
48 } 48 }
49 49
50 TEST_F(RealFFTTest, RealAndComplexMatch) { 50 TEST_F(RealFFTTest, RealAndComplexMatch) {
51 int i = 0; 51 int i = 0;
52 int j = 0; 52 int j = 0;
53 int16_t real_fft_time[kTimeDataLength] = {0}; 53 int16_t real_fft_time[kTimeDataLength] = {0};
54 int16_t real_fft_freq[kFreqDataLength] = {0}; 54 int16_t real_fft_freq[kFreqDataLength] = {0};
55 // One common buffer for complex FFT's time and frequency data. 55 // One common buffer for complex FFT's time and frequency data.
56 int16_t complex_fft_buff[kComplexFftDataLength] = {0}; 56 int16_t complex_fft_buff[kComplexFftDataLength] = {0};
57 57
58 // Prepare the inputs to forward FFT's. 58 // Prepare the inputs to forward FFT's.
59 memcpy(real_fft_time, kRefData, sizeof(kRefData)); 59 memcpy(real_fft_time, kRefData, sizeof(kRefData));
60 for (i = 0, j = 0; i < kTimeDataLength; i += 1, j += 2) { 60 for (i = 0, j = 0; i < kTimeDataLength; i += 1, j += 2) {
61 complex_fft_buff[j] = kRefData[i]; 61 complex_fft_buff[j] = kRefData[i];
62 complex_fft_buff[j + 1] = 0; // Insert zero's to imaginary parts. 62 complex_fft_buff[j + 1] = 0; // Insert zero's to imaginary parts.
63 }; 63 };
64 64
65 // Create and run real forward FFT. 65 // Create and run real forward FFT.
66 RealFFT* fft = WebRtcSpl_CreateRealFFT(kOrder); 66 RealFFT* fft = WebRtcSpl_CreateRealFFT(kOrder);
67 EXPECT_TRUE(fft != NULL); 67 EXPECT_TRUE(fft != nullptr);
68 EXPECT_EQ(0, WebRtcSpl_RealForwardFFT(fft, real_fft_time, real_fft_freq)); 68 EXPECT_EQ(0, WebRtcSpl_RealForwardFFT(fft, real_fft_time, real_fft_freq));
69 69
70 // Run complex forward FFT. 70 // Run complex forward FFT.
71 WebRtcSpl_ComplexBitReverse(complex_fft_buff, kOrder); 71 WebRtcSpl_ComplexBitReverse(complex_fft_buff, kOrder);
72 EXPECT_EQ(0, WebRtcSpl_ComplexFFT(complex_fft_buff, kOrder, 1)); 72 EXPECT_EQ(0, WebRtcSpl_ComplexFFT(complex_fft_buff, kOrder, 1));
73 73
74 // Verify the results between complex and real forward FFT. 74 // Verify the results between complex and real forward FFT.
75 for (i = 0; i < kFreqDataLength; i++) { 75 for (i = 0; i < kFreqDataLength; i++) {
76 EXPECT_EQ(real_fft_freq[i], complex_fft_buff[i]); 76 EXPECT_EQ(real_fft_freq[i], complex_fft_buff[i]);
77 } 77 }
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97 EXPECT_EQ(real_scale, complex_scale); 97 EXPECT_EQ(real_scale, complex_scale);
98 for (i = 0, j = 0; i < kTimeDataLength; i += 1, j += 2) { 98 for (i = 0, j = 0; i < kTimeDataLength; i += 1, j += 2) {
99 EXPECT_LE(abs(real_fft_time[i] - complex_fft_buff[j]), 1); 99 EXPECT_LE(abs(real_fft_time[i] - complex_fft_buff[j]), 1);
100 } 100 }
101 101
102 WebRtcSpl_FreeRealFFT(fft); 102 WebRtcSpl_FreeRealFFT(fft);
103 } 103 }
104 104
105 } // namespace 105 } // namespace
106 } // namespace webrtc 106 } // namespace webrtc
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