error when use of copy, test of deepcopy

src/pma.jl

@@ -311,4 +311,8 @@ function Base.:(==)(pma1::PackedMemoryArray, pma2::PackedMemoryArray)
     pma1 === pma2 && return true
     pma1.nb_elements != pma2.nb_elements && return false
     return _arrays_equal(pma1.array, pma2.array)
+end
+
+function Base.copy(pma::PackedMemoryArray)
+    return error("copy not implemented for $(typeof(pma)).")
 end

test/functional/functionaltests.jl

@@ -10,6 +10,9 @@ function functional_tests()
     @testset "Insertions & finds in dyn sparse vector - performance" begin
         dynsparsevec_insertions_and_gets()
     end
+    @testset "dynsparsevector - copy & deepcopy" begin
+        dynsparsevec_copy()
+    end
 
     # PackedCSC
     @testset "PackedCSC - func - simple use" begin

test/functional/sparsevector.jl

@@ -157,3 +157,24 @@ function dynsparsevec_insertions_and_gets()
     end
     return
 end
+
+function dynsparsevec_copy()
+    kv = Dict{Int, Float64}(
+        rand(rng, 1:100000) => rand(rng, 1:0.1:10000) for i in 1:100
+    )
+    I = collect(keys(kv))
+    V = collect(values(kv))
+    pma = dynamicsparsevec(I,V)
+
+    @test_throws ErrorException copy(pma)
+    deep_copied_pma = deepcopy(pma)
+
+    for (key, val) in deep_copied_pma
+        @test pma[key] == val
+    end
+
+    for (key, val) in pma
+        @test deep_copied_pma[key] == val
+    end
+    return
+end