Update test/julia/Matrix-test.jl

Co-authored-by: Max Horn <[email protected]>

Author: albinahlback

test/julia/Matrix-test.jl

@@ -26,12 +26,9 @@ end
   m1 = M([2 3; 4 5])
   m2 = M([3 4; 5 6])
   m3 = M([4 5; 6 7])
-  m = Matrix{elem_type(M)}(undef, 2, 2)
-  Rm = Matrix{elem_type(M)}(undef, 2, 2)
-  Cm = Matrix{elem_type(M)}(undef, 2, 2)
-  m[1, 1], m[1, 2], m[2, 1], m[2, 2] = m0, m1, m2, m3
-  Rm[1, 1], Rm[1, 2], Rm[2, 1], Rm[2, 2] = m2, m3, m0, m1
-  Cm[1, 1], Cm[1, 2], Cm[2, 1], Cm[2, 2] = m1, m0, m3, m2
+  m = matrix(M, 2, 2,[m0, m1, m2, m3])
+  Rm = matrix(M, 2, 2,[m2, m3, m0, m1])
+  Cm = matrix(M, 2, 2,[m1, m0, m3, m2])
   rm = swap_rows(m, 2, 1)
   cm = swap_cols(m, 1, 2)
   @test rm == Rm