Github user mengxr commented on a diff in the pull request:
https://github.com/apache/spark/pull/5048#discussion_r26516448
--- Diff:
mllib/src/test/scala/org/apache/spark/mllib/linalg/MatricesSuite.scala ---
@@ -424,4 +424,15 @@ class MatricesSuite extends FunSuite {
assert(mat.rowIndices.toSeq === Seq(3, 0, 2, 1))
assert(mat.values.toSeq === Seq(1.0, 2.0, 3.0, 4.0))
}
+
+ test("MatrixUDT") {
+ val dm1 = new DenseMatrix(2, 2, Array(0.9, 1.2, 2.3, 9.8))
+ val dm2 = new DenseMatrix(0, 0, Array())
+ val sm1 = dm1.toSparse
+ val sm2 = dm2.toSparse
+ val mUDT = new MatrixUDT()
+ Seq(dm1, dm2, sm1, sm2).foreach {
+ mat => assert(mat == mUDT.deserialize(mUDT.serialize(mat)))
--- End diff --
use `===` instead of `==`. The former contains more info in the error
message.
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