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TestPV_ChainUGen.sc
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TestPV_ChainUGen.sc
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/*
TestPV_ChainUGen.run
UnitTest.gui
*/
TestPV_ChainUGen : UnitTest {
// This test manually creates an FFT frame equivalent to pure white noise,
// on which certain ugens' action should be a no-op
test_whiteframe_noop {
var fakeframe;
// Every real is 1.0, every imag is 0.0. same as every mag is 1.0, every phase is 0.0.
fakeframe = ([1,1] ++ {[1,0]}.dup(511)).flat;
// All of these should be no-ops when applied to a faked frame with reals all 1 and imags all 0:
this.pv_equivalencetests_common(fakeframe,
Dictionary[
"PV_MagAbove" -> {|f| PV_MagAbove(f, 0.9)},
"PV_MagBelow" -> {|f| PV_MagBelow(f, 1.1)},
"PV_MagClip" -> {|f| PV_MagClip(f, 1)},
"PV_MagSmear" -> {|f| PV_MagSmear(f, 0)},
"PV_BinShift" -> {|f| PV_BinShift(f)},
"PV_MagShift" -> {|f| PV_MagShift(f)},
"PV_MagSquared" -> {|f| PV_MagSquared(f)},
"PV_PhaseShift90(PV_PhaseShift270)" -> {|f| PV_PhaseShift90(PV_PhaseShift270(f))},
"PV_Conj" -> {|f| PV_Conj(f)},
"PV_MagMul" -> {|f| PV_MagMul(f, f)},
"PV_PhaseShift" -> {|f| PV_PhaseShift(f, 0)},
"PV_BrickWall" -> {|f| PV_BrickWall(f, 0)},
"PV_BinWipe" -> {|f| PV_BinWipe(f, f, 0.5)},
"PV_CopyPhase" -> {|f| PV_CopyPhase(f, f)},
"PV_Copy" -> {|f| PV_Copy(f, f)},
"PV_Max" -> {|f| PV_Max(f, f)},
"PV_Min" -> {|f| PV_Min(f, f)},
"PV_Mul" -> {|f| PV_Mul(f, f)},
"PV_Div" -> {|f| PV_Div(f, f)},
"PV_MagDiv" -> {|f| PV_MagDiv(f, f)},
"PV_RandComb" -> {|f| PV_RandComb(f, 0)},
"PV_RandWipe" -> {|f| PV_RandWipe(f, f, 0.5)},
"PV_MagFreeze" -> {|f| PV_MagFreeze(f, Line.kr(-1, 1, 0.05))},
"PV_BinScramble"-> {|f| PV_BinScramble(f, 0)},
],
fakeframe, "No-op unity-frame test on %");
}
// Various ugens have parameter settings which are supposed to zero the data
test_whiteframe_zeroing {
var fakeframe;
// Every real is 1.0, every imag is 0.0. same as every mag is 1.0, every phase is 0.0.
// NOTE: Here we actually set the DC and nyqquist to zero, not one,
// because many ugens simply don't bother to touch them.
fakeframe = ([0,0] ++ {[1,0]}.dup(511)).flat;
// All of these should be no-ops when applied to a faked frame with reals all 1 and imags all 0:
this.pv_equivalencetests_common(fakeframe,
Dictionary[
"PV_MagAbove" -> {|f| PV_MagAbove(f, inf)},
"PV_MagBelow" -> {|f| PV_MagBelow(f, -inf)},
"PV_MagClip" -> {|f| PV_MagClip(f, 0)},
// MEH, this one leaves the edge bins AS WELL as the dc+nyq: "PV_LocalMax" -> {|f| PV_LocalMax(f, inf)},
"PV_BinShift" -> {|f| PV_BinShift(f, 0, 99999)},
"PV_MagShift" -> {|f| PV_MagShift(f, 0, 99999)},
"PV_BrickWall" -> {|f| PV_BrickWall(f, 1)},
"PV_RandComb" -> {|f| PV_RandComb(f, 1)},
],
0, "% can be used to produce silence");
}
// The main engine that is used to push a fake fft frame through a ugen:
pv_equivalencetests_common { |fakeframe, tests, equaltothis, message|
var s = this.s, b;
this.bootServer;
tests.keysValuesDo{|name, func|
b = Buffer.sendCollection(s, fakeframe);
0.05.wait;
s.sync;
{var f; f = FFTTrigger(b); func.value(f); Line.ar(0, 0, 0.05, doneAction:2)}.play;
s.sync;
0.2.wait;
b.loadToFloatArray(action: { |data|
this.assertArrayFloatEquals(data, equaltothis, message.format(name), within: 0.001, report: true)
});
s.sync;
rrand(0.12, 0.15).wait;
b.free;
0.05.wait;
s.sync;
};
0.8.wait; // enough time for units to report back
}
/*
PV_LocalMax - hmmm would need a differently-designed frame for noop
PV_MagNoise - any unit test possible?
*/
}