import mir.math.common: log;
import mir.test: shouldApprox;

logNormalLPDF(1.0).shouldApprox == log(0.3989423);
logNormalLPDF(2.0).shouldApprox == log(0.156874);
logNormalLPDF(3.0).shouldApprox == log(0.07272826);

// Can include location/scale
logNormalLPDF(1.0, 1, 2).shouldApprox == log(0.1760327);
logNormalLPDF(2.0, 1, 2).shouldApprox == log(0.09856858);
logNormalLPDF(3.0, 1, 2).shouldApprox == log(0.06640961);