From 7a818c0cd33a505de17822caf92bf659ccc3c274 Mon Sep 17 00:00:00 2001
From: nyanpasu64 <nyanpasu64@tuta.io>
Date: Fri, 20 Jul 2018 01:12:28 -0700
Subject: [PATCH] Add unit tests for Wave

---
 tests/test_wave.py                    |  27 ++++++++++++++++++++++++++
 tests/wav-formats/f32-impulse1000.wav | Bin 0 -> 8080 bytes
 tests/wav-formats/f64-impulse1000.wav | Bin 0 -> 16080 bytes
 tests/wav-formats/s16-impulse1000.wav | Bin 0 -> 4044 bytes
 tests/wav-formats/s24-impulse1000.wav | Bin 0 -> 6044 bytes
 tests/wav-formats/s32-impulse1000.wav | Bin 0 -> 8044 bytes
 tests/wav-formats/u8-impulse1000.wav  | Bin 0 -> 2044 bytes
 7 files changed, 27 insertions(+)
 create mode 100644 tests/test_wave.py
 create mode 100644 tests/wav-formats/f32-impulse1000.wav
 create mode 100644 tests/wav-formats/f64-impulse1000.wav
 create mode 100644 tests/wav-formats/s16-impulse1000.wav
 create mode 100644 tests/wav-formats/s24-impulse1000.wav
 create mode 100644 tests/wav-formats/s32-impulse1000.wav
 create mode 100644 tests/wav-formats/u8-impulse1000.wav

diff --git a/tests/test_wave.py b/tests/test_wave.py
new file mode 100644
index 0000000..8892c80
--- /dev/null
+++ b/tests/test_wave.py
@@ -0,0 +1,27 @@
+import numpy as np
+
+import pytest
+
+from ovgenpy.wave import Wave
+
+
+prefix = 'tests/wav-formats/'
+wave_paths = [
+    # 2000 samples, with a full-scale peak at data[1000].
+    'u8-impulse1000.wav',
+    's16-impulse1000.wav',
+    's32-impulse1000.wav',
+    'f32-impulse1000.wav',
+    'f64-impulse1000.wav',
+]
+
+
+@pytest.mark.parametrize("wave_path", wave_paths)
+def test_wave(wave_path):
+    wave = Wave(None, prefix + wave_path)
+    data = wave[:]
+
+    # Audacity dithers <=16-bit WAV files upon export, creating a few bits of noise.
+    # As a result, amin(data) <= 0.
+    assert -0.01 < np.amin(data) <= 0
+    assert 0.99 < np.amax(data) <= 1
diff --git a/tests/wav-formats/f32-impulse1000.wav b/tests/wav-formats/f32-impulse1000.wav
new file mode 100644
index 0000000000000000000000000000000000000000..cf32cd8879055968b504385666f3638710d99913
GIT binary patch
literal 8080
zcmeIuu?fR45QX8V$dESR0pd+$7dC`6PKu;(C2Z8C(*P=6c%v+lF;ZoQ$Xgiv9~|7l
zaXh~JrR(Oi^lTn&c*W`@$;v3b^YA;UP^I9<SmgC{l=`;0t~Vxkx!eXRxv!NbAAOzw
xPzWG^00IagfB*srAb<b@2q3Tpf#kN3f(!^CfB*srAb<b@2q1s}0toC`;15<h5F`Kq

literal 0
HcmV?d00001

diff --git a/tests/wav-formats/f64-impulse1000.wav b/tests/wav-formats/f64-impulse1000.wav
new file mode 100644
index 0000000000000000000000000000000000000000..edc1c84a9e4220f7ed4def38ebe4f023d9ef50ad
GIT binary patch
literal 16080
zcmeIuu?fOp5C+f-QM3^p!AXoM5)d1;(84Mx>FhE<25=)6uyg<iuyh1}i%j7=IPN<*
zu6X-(T|br)$MR6M*KRS7h&;0B?<u^-F^yHU&AA(;^*M>yR^{e*lck>BcBhEGc;^w9
zrfd52M-d=EfB*pk1PBlyK!5-N0t5&UAV7cs0RjXF5FkK+009Dnz^53JNq_(W0t5&U
gAV7cs0RjXF5FkK+009C72oNAZfB*pk1pZOr3kKT}VE_OC

literal 0
HcmV?d00001

diff --git a/tests/wav-formats/s16-impulse1000.wav b/tests/wav-formats/s16-impulse1000.wav
new file mode 100644
index 0000000000000000000000000000000000000000..dbfc10f19365e44e63696aed42f8f0456dfcfbdc
GIT binary patch
literal 4044
zcma)<F>Vw=5JlStJB1@~6#|e*2_Qy7WMoK$a1`!A%B8?w5B>M~@q5M&7|T07-PKjU
z{;#gtef#G1>tD~tc>nU<t52W5ym&swxR`(6f6l?zi*Y%gkB=X|eE2bKvU0awj&18G
zGZ$GpuQAHgHtk}|>UM9F`P#Va$vAEN*E)9jznd$!+tX>0xI8m<w{f^*lW{yc7j&oX
zYW&%*$IZPr(2>pKc#}hr1y%g!%H6Tg=Y{h}vu<QovnwO+YaXt!_Rzz2pUIdwKntps
zGqNV*suTMl2EmwG%A6>)RROi_o*+Hu5`RaW)hX3;njA;9o5}fUGS(TMw7#9Wi6NNO
zdJISVYJq>FXALci60}F{RSj!&g`4D-$oY2+Q%5$pd0~-ksERUCoOn;}*R$TPCJ(V?
zXY9T3<~+IMmFmd;o4I$K*+jYS$v)A@=3ZUn<nBIlka5+Hr*+Qi@C=o`)F_-E_hf}R
zb`$-mOX7$H{LLeNqk3#$Q?>f!Oe&e`iv5a6EkWT)Nd=N&x<ETX>)u?$cKXEC%tlRu
z`N_XpCK~y5OifVt)&`l%m|Wz!Xx7daF048%66JDo0_MAO->n*Y=`K(iNp9CWTn0BB
zQk~9bfAs-59JVvNH(7F0qD1l_Z}251`+NH31(ayX`0lLc_4qw&9z|0f?Ra6#o|3*|
z-(Yt?wMtj9Rz#sz<c9`XgFUhdqs$RqHB_vTtPQHzZq;+-OtR-(v>Nb|xLH~II2dJy
zirwSQQ_i`T=8-+IuRr~+x~!3>{kL+&ez^jh^<{4`rz0z{CXaNX?qyZ~y^B1VSVx@x
zV-62lWhU7WhrEml-^N{i%bJ$W%(Eq`tQ@_gHK&v+^z^10;Mx5kk`qqKdX81GOb1g>
zO}O^FtSYIncvTFW<hP!76!ZHNXk1rKJd{x?o6MSVta4F*yxku^g{k*g=S~be>C-tQ
zKf#+*Z<f>r*kqEP+YXP7x>6;?5*LhNr+W0yy_eQOMzJI}HHdHC;B+?LA4ZljPZr+5
zVAl(u&54~@_~ts@SADxc_d1ewc2bjNu%r0jKZ#L($WQIpe6ch)xj^|~%T9Y3BP%C4
zR^?V%d_A7O=i%5Rirvx5>He)+7OkBi<O0p{J7#LReK?jy-IZkANF7H<c<ZR=;^7K>
zh9llWk6Q#q*z<0T=(VCd_FDKM1JA7L2YqTXIpvC<o)W52ojV^ZYXD6DUrQ@~8O9rN
z<jKlC!<rvvoB51E9;U3F)dmZGDa1pb)j|a1lUZ`Xm)2n7$#r7#L`CoGiKzZ&Z1i}^
om393ZHQwlI`Q@Al`)@}3?u~6M@Pk6DSA2jA<<WW_tLVk}3xZ2QZvX%Q

literal 0
HcmV?d00001

diff --git a/tests/wav-formats/s24-impulse1000.wav b/tests/wav-formats/s24-impulse1000.wav
new file mode 100644
index 0000000000000000000000000000000000000000..7f7396038186d83175ac2560224a999eaf4f81f7
GIT binary patch
literal 6044
zcmeIup$&jA07TIP7QlgI1~#am2^K+h6M`eDsHa1)4a1d=(S(0zPh8%%TKf!=Gy8I0
zaq1;CrRkN@+^W;4!$%*=h9H0d0tg_000IagfI$5MIp6i4<RJnGAb<b@2q1s}0zVh{
E02i$bCjbBd

literal 0
HcmV?d00001

diff --git a/tests/wav-formats/s32-impulse1000.wav b/tests/wav-formats/s32-impulse1000.wav
new file mode 100644
index 0000000000000000000000000000000000000000..74feca7d76b7957be45e2ae6312b0cc83d7b5f8f
GIT binary patch
literal 8044
zcmeIup$&jQ5Jb^|PyiiprGVfPECTc;7aZ<9^hHm!uxuA6_&a9Bh{;=*81o?Q(>5Px
z3B9Dob3gvPtvUteRMO}j4gmxZKmY**5I_I{1Q0*~0R-v`nAuf-1q%>B009ILKmY**
N5I_I{1Q7VQzz4Ve3>yFd

literal 0
HcmV?d00001

diff --git a/tests/wav-formats/u8-impulse1000.wav b/tests/wav-formats/u8-impulse1000.wav
new file mode 100644
index 0000000000000000000000000000000000000000..94c0f89746173db5938dab0c353327fa98963085
GIT binary patch
literal 2044
zcmZ`&IZ^{L5R@Yv@&vv@fU8IeAa)f+M&{i6FFwIz$U)Q7J%<)+K^pZn(%OD`KAnE<
z#&~;tefs#kJlu~l4)fW*2L2D@INr~f^Y_$jS3H_FFSr;d2K8ox4pf!x+VBdd5pG8K
za(iygO{U&UrZG7fuA|XI6iV0wk0Ls#kH@<68Uftn{;<pdW>{rI5_$vxr)K6sxX2eL
z@-c-jpp;r<fju{Auc{)%mg<DgC>!y1HQ0g(N)`jMmRKDsqn219jLBtrSV|io_C;1-
z11Jv@Y$x#{e6EvBEKGVEM$z6*0N4I20cml#y#$oT?B$&#v|P`2oPh*kq0f`F$y`ek
z%GHox)K<+=ybc=>f7np7uc;G}ena%2hZ+gQy{5!*q2V#0ZFD3M3ab*To2g?#Rhv3z
z{*;w##W5PzT$CU_dbGR<abGGI`P_Q%z?;-J!QoZp6nJ|6J7zgTco$usJ&CN?XSYmX
z!S)|hYBH~OOTK#<Tz_MLi2GZ!Nc@DokVitT-kBe#K&^`vup4;0Jt86_LKDRjTd(YO
Vn$^wMyxH6X5-$gPM5|du{Rbt{?@Isx

literal 0
HcmV?d00001