From 49d91f07b2c64de1f84888a932c354242f996984 Mon Sep 17 00:00:00 2001
From: Antti Soininen <soininen@ill.fr>
Date: Mon, 12 Nov 2018 10:42:15 +0100
Subject: [PATCH] GroupToXResolution: add performance test. Re #23908
---
.../Algorithms/test/GroupToXResolutionTest.h | 56 +++++++++++++++++++
1 file changed, 56 insertions(+)
diff --git a/Framework/Algorithms/test/GroupToXResolutionTest.h b/Framework/Algorithms/test/GroupToXResolutionTest.h
index dad1bb39253..3e990f78fe0 100644
--- a/Framework/Algorithms/test/GroupToXResolutionTest.h
+++ b/Framework/Algorithms/test/GroupToXResolutionTest.h
@@ -13,6 +13,8 @@
#include "MantidDataObjects/Workspace2D.h"
#include "MantidDataObjects/WorkspaceCreation.h"
+#include "MantidHistogramData/LinearGenerator.h"
+#include "MantidHistogramData/QuadraticGenerator.h"
#include <boost/math/special_functions/pow.hpp>
@@ -181,4 +183,58 @@ public:
}
};
+class GroupToXResolutionTestPerformance : public CxxTest::TestSuite {
+public:
+ // This pair of boilerplate methods prevent the suite being created statically
+ // This means the constructor isn't called when running other tests
+ static GroupToXResolutionTestPerformance *createSuite() {
+ return new GroupToXResolutionTestPerformance();
+ }
+ static void destroySuite(GroupToXResolutionTestPerformance *suite) {
+ delete suite;
+ }
+
+ GroupToXResolutionTestPerformance() : m_alg() {
+ m_alg.setRethrows(true);
+ m_alg.setChild(true);
+ m_alg.initialize();
+ }
+
+ void setUp() override {
+ constexpr double xZeroth{0.};
+ constexpr double xFirst{0.};
+ constexpr double xSecond{0.4};
+ constexpr size_t n{10000};
+ HistogramData::Points Xs(
+ n, HistogramData::QuadraticGenerator(xZeroth, xFirst, xSecond));
+ HistogramData::Counts Ys(n, 1.3);
+ HistogramData::CountStandardDeviations Es(n, 1.1);
+ HistogramData::Histogram h(Xs, Ys, Es);
+ API::MatrixWorkspace_sptr inputWS =
+ DataObjects::create<DataObjects::Workspace2D>(1, std::move(h));
+ // Construct DX such that in the beginning, we group multiple points
+ // and after a crossover, no grouping happens.
+ constexpr double initialGroupSize{10.};
+ constexpr double crossover{0.8 * n};
+ constexpr double dxZeroth{2. * initialGroupSize * xSecond};
+ constexpr double dxFirst{(2. * crossover - 2. * initialGroupSize + 1.) /
+ crossover * xSecond};
+ auto Dxs = Kernel::make_cow<HistogramData::HistogramDx>(
+ n, HistogramData::LinearGenerator(dxZeroth, dxFirst));
+ inputWS->setSharedDx(0, std::move(Dxs));
+ m_alg.setProperty("InputWorkspace", inputWS);
+ m_alg.setProperty("OutputWorkspace", "_out");
+ m_alg.setProperty("FractionOfDx", 1.);
+ }
+
+ void test_performance() {
+ for (int i = 0; i < 5000; ++i) {
+ TS_ASSERT_THROWS_NOTHING(m_alg.execute())
+ }
+ }
+
+private:
+ Algorithms::GroupToXResolution m_alg;
+};
+
#endif /* MANTID_ALGORITHMS_GROUPTOXRESOLUTIONTEST_H_ */
--
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