jessicapriebe commented on code in PR #1983:
URL: https://github.com/apache/systemds/pull/1983#discussion_r1460444395
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src/test/java/org/apache/sysds/test/component/matrix/FourierTest.java:
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@@ -0,0 +1,112 @@
+package org.apache.sysds.test.component.matrix;
+
+import org.apache.sysds.runtime.matrix.data.MatrixBlock;
+import org.junit.Test;
+import static org.apache.sysds.runtime.matrix.data.LibMatrixFourier.*;
+import static org.junit.Assert.assertArrayEquals;
+
+public class FourierTest {
+
+ @Test
+ public void simple_test_one_dim() {
+ // 1st row real part, 2nd row imaginary part
+ double[][] in = {{0, 18, -15, 3},{0, 0, 0, 0}};
+ double[][] expected = {{6, 15, -36, 15},{0, -15, 0, 15}};
+
+ double[][] res = fft_one_dim(in);
+ for(double[] row : res){
+ for (double elem : row){
+ System.out.print(elem + " ");
+ }
+ System.out.println();
Review Comment:
resolved
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