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test for filling with NDArray
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This commit is contained in:
Erik Fröjdh
2026-06-03 12:09:48 +02:00
parent 06b04fa143
commit 19472b6a6f
1 changed files with 28 additions and 0 deletions
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src/hist/PixelHistogramImpl.test.cpp
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@@ -1,6 +1,7 @@
#include <catch2/catch_test_macros.hpp>
#include <catch2/matchers/catch_matchers_floating_point.hpp>
#include "aare/NDArray.hpp"
#include "aare/hist/PixelHistogramImpl.hpp"
TEST_CASE("PixelHistogramImpl construct a small histogram and fill with a few "
@@ -43,3 +44,30 @@ TEST_CASE("PixelHistogramImpl construct a small histogram and fill with a few "
v(1, 1, 1) ==
1); // At the edge should go to the bin with the edge as the lower bound
}
TEST_CASE("Fill a small histogram from an NDArray") {
int rows = 2;
int cols = 3;
int n_bins = 10;
double xmin = 0.0;
double xmax = 1.0;
aare::PixelHistogramImpl<double, int64_t> hist(rows, cols, n_bins, xmin,
xmax);
aare::NDArray<double> frame({rows, cols});
frame(0, 0) = 0.05; // bin 0
frame(0, 1) = 0.15; // bin 1
frame(0, 2) = 0.25; // bin 2
frame(1, 0) = 0.35; // bin 3
frame(1, 1) = 0.45; // bin 4
frame(1, 2) = 1.5; // out of range
hist.fill(frame.view());
auto v = hist.view();
REQUIRE(v(0, 0, 0) == 1);
REQUIRE(v(0, 1, 1) == 1);
REQUIRE(v(0, 2, 2) == 1);
REQUIRE(v(1, 0, 3) == 1);
REQUIRE(v(1, 1, 4) == 1);
}