151 lines
4.9 KiB
Matlab
151 lines
4.9 KiB
Matlab
classdef Signalgenerator_test < IMDDTestCase
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methods (Test, TestTags = {'unit', 'fast', 'transmit', 'signalgenerator'})
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function constructorStoresDefaultConfiguration(testCase)
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gen = Signalgenerator();
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testCase.verifyEqual(gen.form, signalform.sine);
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testCase.verifyEqual(gen.length, 1024);
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testCase.verifyEqual(gen.fs, 1000);
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testCase.verifyEqual(gen.fsig, 50);
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testCase.verifyEqual(gen.dimension, 1);
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testCase.verifyEmpty(gen.M);
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testCase.verifyEqual(gen.order, 7);
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testCase.verifyEqual(gen.randkey, 0);
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testCase.verifyEqual(gen.skip, 0);
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testCase.verifyFalse(gen.bruijn);
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end
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function buildSignalProducesExpectedSineWave(testCase)
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gen = Signalgenerator( ...
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"form", signalform.sine, ...
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"length", 4, ...
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"fs", 4, ...
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"fsig", 1);
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signal = gen.build_signal();
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expected = [0 1 0 -1];
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testCase.verifySize(signal, [1 4]);
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testCase.verifyEqual(signal, expected, "AbsTol", 1e-12);
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end
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function processWrapsGeneratedSignalInInformationsignal(testCase)
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gen = Signalgenerator( ...
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"form", signalform.sine, ...
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"length", 4, ...
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"fs", 4, ...
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"fsig", 1);
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out = gen.process();
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testCase.verifyClass(out, 'Informationsignal');
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testCase.verifySize(out.signal, [1 4]);
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testCase.verifyEqual(out.fs, 4);
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testCase.verifyEqual(out.signal, [0 1 0 -1], "AbsTol", 1e-12);
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testCase.verifyEqual(height(out.logbook), 1);
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end
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function randomDataIsDeterministicAndColumnShaped(testCase)
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gen = Signalgenerator( ...
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"form", signalform.random, ...
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"length", 8, ...
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"dimension", 2, ...
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"randkey", 3);
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signal = gen.build_signal();
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expected = [ ...
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1 0; ...
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1 0; ...
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0 0; ...
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1 0; ...
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1 1; ...
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1 0; ...
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0 1; ...
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0 1];
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testCase.verifySize(signal, [8 2]);
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testCase.verifyEqual(signal, expected);
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end
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function prmsDataUsesMoveItStyleShape(testCase)
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gen = Signalgenerator( ...
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"form", signalform.prms, ...
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"length", 8, ...
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"dimension", 2, ...
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"order", 6);
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signal = gen.build_signal();
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expected = [ ...
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1 0; ...
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1 0; ...
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0 1; ...
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1 0; ...
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0 1; ...
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0 0; ...
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1 0; ...
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0 0];
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testCase.verifySize(signal, [8 2]);
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testCase.verifyEqual(signal, expected);
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end
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function prmsLengthDefaultsToPamSourceStyleLength(testCase)
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pam4Gen = Signalgenerator( ...
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"form", signalform.prms, ...
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"dimension", 2, ...
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"order", 7);
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pam6Gen = Signalgenerator( ...
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"form", signalform.prms, ...
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"dimension", 5, ...
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"order", 7);
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testCase.verifyEqual(pam4Gen.length, 2^(7 - 1));
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testCase.verifyEqual(pam6Gen.length, 2^(7 - 2));
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end
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function pamFormatSelectsMapperReadyDimension(testCase)
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pam4Gen = Signalgenerator( ...
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"form", signalform.prms, ...
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"M", 4, ...
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"order", 7);
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pam6Gen = Signalgenerator( ...
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"form", signalform.prms, ...
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"M", 6, ...
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"order", 7);
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testCase.verifyEqual(pam4Gen.dimension, 2);
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testCase.verifyEqual(pam4Gen.length, 2^(7 - 1));
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testCase.verifyEqual(pam6Gen.dimension, 5);
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testCase.verifyEqual(pam6Gen.length, 2^(7 - 2));
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end
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function pam6FormatReturnsMapperReadyVector(testCase)
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gen = Signalgenerator( ...
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"form", signalform.prms, ...
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"M", 6, ...
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"order", 7);
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signal = gen.build_signal();
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testCase.verifySize(signal, [5 * 2^(7 - 2), 1]);
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testCase.verifyEqual(mod(numel(signal), 5), 0);
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end
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function processWrapsPrmsSignalInInformationsignal(testCase)
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gen = Signalgenerator( ...
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"form", signalform.prms, ...
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"length", 8, ...
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"dimension", 2, ...
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"order", 6, ...
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"fs", 42);
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out = gen.process();
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testCase.verifyClass(out, 'Informationsignal');
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testCase.verifySize(out.signal, [8 2]);
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testCase.verifyEqual(out.fs, 42);
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testCase.verifyEqual(height(out.logbook), 1);
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end
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end
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end
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