Regression tests for qrisk2-2014 to demonstrate that it returns identical values to the reference implementation.
For further details of the algorithm see the QRisk website
An additional set of regression tests can be executed to prove that this module returns the same values as the QRisk2 reference implementation.
Build the reference implementation from http://svn.clinrisk.co.uk/opensource/qrisk2. Save the reference implementation in ./bin .
A tSQL script (make-testcases.sql) creates the cartesian set of sets of representative inputs for each variable in the algorithm. Each record in the set is transformed to a bash script to calculate the output of each of the QRisk2 algorithms.
To output the test cases to file:
bcp qrisk..TestCase out regression.cases.sh -c -T
Use dos2unix to correct line endings and then prepend the file with the bash header (#! /bin/bash).
NB: The sql and bash scripts for testcase generation can take hours and will require significant disk-space!
For your convenience, 3 pregenerated files (regression-testcases.n.txt) contain more than 2 million cases. Please note the following disclaimer accompanying the risk scores in these test cases:
The initial version of this file, to be found at http://svn.clinrisk.co.uk/opensource/qrisk2, faithfully implements QRISK2-2014.
ClinRisk Ltd. have released this code under the GNU Lesser General Public License to enable others to implement the algorithm faithfully.
However, the nature of the GNU Lesser General Public License is such that we cannot prevent, for example, someone accidentally altering the coefficients, getting the inputs wrong, or just poor programming.
ClinRisk Ltd. stress, therefore, that it is the responsibility of the end user to check that the source that they receive produces the same results as the original code posted at http://svn.clinrisk.co.uk/opensource/qrisk2.
Inaccurate implementations of risk scores can lead to wrong patients being given the wrong treatment.
To execute regression tests:
npm install
node regression-tests.js regression-testcases.1.txt
node regression-tests.js regression-testcases.2.txt
node regression-tests.js regression-testcases.3.txt
Copyright 2014 Black Pear Software Ltd.
qrisk2-2014-regression is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
qrisk2-2014-regression is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.
Supported by Black Pear Software Ltd