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juce_LogRampedValue_test.cpp
/*
==============================================================================
This file is part of the JUCE library.
Copyright (c) 2022 - Raw Material Software Limited
JUCE is an open source library subject to commercial or open-source
licensing.
By using JUCE, you agree to the terms of both the JUCE 7 End-User License
Agreement and JUCE Privacy Policy.
End User License Agreement: www.juce.com/juce-7-licence
Privacy Policy: www.juce.com/juce-privacy-policy
Or: You may also use this code under the terms of the GPL v3 (see
www.gnu.org/licenses).
JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
DISCLAIMED.
==============================================================================
*/
namespace juce::dsp
{
static CommonSmoothedValueTests <LogRampedValue <float>> commonLogRampedValueTests;
class LogRampedValueTests final : public UnitTest
{
public:
LogRampedValueTests()
: UnitTest ("LogRampedValueTests", UnitTestCategories::dsp)
{}
void runTest() override
{
beginTest ("Curve");
{
Array<double> levels = { -0.12243, -1.21245, -12.2342, -22.4683, -30.0, -61.18753 };
for (auto level : levels)
{
Array<Range<double>> ranges = { Range<double> (0.0, 1.0),
Range<double> (-2.345, 0.0),
Range<double> (-2.63, 3.56),
Range<double> (3.3, -0.2) };
for (auto range : ranges)
{
LogRampedValue<double> slowStart { range.getStart() } , fastStart { range.getEnd() };
auto numSamples = 12;
slowStart.reset (numSamples);
fastStart.reset (numSamples);
slowStart.setLogParameters (level, true);
fastStart.setLogParameters (level, false);
slowStart.setTargetValue (range.getEnd());
fastStart.setTargetValue (range.getStart());
AudioBuffer<double> results (2, numSamples + 1);
results.setSample (0, 0, slowStart.getCurrentValue());
results.setSample (1, 0, fastStart.getCurrentValue());
for (int i = 1; i < results.getNumSamples(); ++i)
{
results.setSample (0, i, slowStart.getNextValue());
results.setSample (1, i, fastStart.getNextValue());
}
for (int i = 0; i < results.getNumSamples(); ++i)
expectWithinAbsoluteError (results.getSample (0, i),
results.getSample (1, results.getNumSamples() - (i + 1)),
1.0e-7);
auto expectedMidpoint = range.getStart() + (range.getLength() * Decibels::decibelsToGain (level));
expectWithinAbsoluteError (results.getSample (0, numSamples / 2),
expectedMidpoint,
1.0e-7);
}
}
}
}
};
static LogRampedValueTests LogRampedValueTests;
} // namespace juce::dsp
juce::Decibels::decibelsToGain
static Type decibelsToGain(Type decibels, Type minusInfinityDb=Type(defaultMinusInfinitydB))
Definition juce_Decibels.h:42
juce::UnitTest::UnitTest
UnitTest(const String &name, const String &category=String())
Definition juce_UnitTest.cpp:26
juce::UnitTest::beginTest
void beginTest(const String &testName)
Definition juce_UnitTest.cpp:89
juce::UnitTest::expectWithinAbsoluteError
void expectWithinAbsoluteError(ValueType actual, ValueType expected, ValueType maxAbsoluteError, String failureMessage=String())
Definition juce_UnitTest.h:212
juce::UnitTest::runTest
virtual void runTest()=0