improve show for Qobj lists

Author: ytdHuang

src/qobj/quantum_object.jl

@@ -145,15 +145,15 @@ function Base.show(
     },
 }
     op_data = QO.data
-    println(io, "Quantum Object:   type=", QO.type, "   dims=", QO.dims, "   size=", size(op_data))
+    println(io, "\nQuantum Object:   type=", QO.type, "   dims=", QO.dims, "   size=", size(op_data))
     return show(io, MIME("text/plain"), op_data)
 end
 
 function Base.show(io::IO, QO::QuantumObject)
     op_data = QO.data
     println(
         io,
-        "Quantum Object:   type=",
+        "\nQuantum Object:   type=",
         QO.type,
         "   dims=",
         QO.dims,

src/qobj/quantum_object_evo.jl

@@ -128,7 +128,7 @@ function Base.show(io::IO, QO::QuantumObjectEvolution)
     op_data = QO.data
     println(
         io,
-        "Quantum Object Evo.:   type=",
+        "\nQuantum Object Evo.:   type=",
         QO.type,
         "   dims=",
         QO.dims,

test/core-test/quantum_objects.jl

@@ -233,42 +233,42 @@
         a_size = size(a)
         a_isherm = isherm(a)
         @test opstring ==
-              "Quantum Object:   type=Operator   dims=$a_dims   size=$a_size   ishermitian=$a_isherm\n$datastring"
+              "\nQuantum Object:   type=Operator   dims=$a_dims   size=$a_size   ishermitian=$a_isherm\n$datastring"
 
         a = spre(a)
         opstring = sprint((t, s) -> show(t, "text/plain", s), a)
         datastring = sprint((t, s) -> show(t, "text/plain", s), a.data)
         a_dims = a.dims
         a_size = size(a)
         a_isherm = isherm(a)
-        @test opstring == "Quantum Object:   type=SuperOperator   dims=$a_dims   size=$a_size\n$datastring"
+        @test opstring == "\nQuantum Object:   type=SuperOperator   dims=$a_dims   size=$a_size\n$datastring"
 
         opstring = sprint((t, s) -> show(t, "text/plain", s), ψ)
         datastring = sprint((t, s) -> show(t, "text/plain", s), ψ.data)
         ψ_dims = ψ.dims
         ψ_size = size(ψ)
-        @test opstring == "Quantum Object:   type=Ket   dims=$ψ_dims   size=$ψ_size\n$datastring"
+        @test opstring == "\nQuantum Object:   type=Ket   dims=$ψ_dims   size=$ψ_size\n$datastring"
 
         ψ = ψ'
         opstring = sprint((t, s) -> show(t, "text/plain", s), ψ)
         datastring = sprint((t, s) -> show(t, "text/plain", s), ψ.data)
         ψ_dims = ψ.dims
         ψ_size = size(ψ)
-        @test opstring == "Quantum Object:   type=Bra   dims=$ψ_dims   size=$ψ_size\n$datastring"
+        @test opstring == "\nQuantum Object:   type=Bra   dims=$ψ_dims   size=$ψ_size\n$datastring"
 
         ψ2 = Qobj(rand(ComplexF64, 4), type = OperatorKet)
         opstring = sprint((t, s) -> show(t, "text/plain", s), ψ2)
         datastring = sprint((t, s) -> show(t, "text/plain", s), ψ2.data)
         ψ2_dims = ψ2.dims
         ψ2_size = size(ψ2)
-        @test opstring == "Quantum Object:   type=OperatorKet   dims=$ψ2_dims   size=$ψ2_size\n$datastring"
+        @test opstring == "\nQuantum Object:   type=OperatorKet   dims=$ψ2_dims   size=$ψ2_size\n$datastring"
 
         ψ2 = ψ2'
         opstring = sprint((t, s) -> show(t, "text/plain", s), ψ2)
         datastring = sprint((t, s) -> show(t, "text/plain", s), ψ2.data)
         ψ2_dims = ψ2.dims
         ψ2_size = size(ψ2)
-        @test opstring == "Quantum Object:   type=OperatorBra   dims=$ψ2_dims   size=$ψ2_size\n$datastring"
+        @test opstring == "\nQuantum Object:   type=OperatorBra   dims=$ψ2_dims   size=$ψ2_size\n$datastring"
     end
 
     @testset "matrix element" begin

test/core-test/quantum_objects_evo.jl

@@ -114,7 +114,7 @@
         H_isherm = isherm(H)
         H_isconst = isconstant(H)
         @test opstring ==
-              "Quantum Object Evo.:   type=Operator   dims=$H_dims   size=$H_size   ishermitian=$H_isherm   isconstant=$H_isconst\n$datastring"
+              "\nQuantum Object Evo.:   type=Operator   dims=$H_dims   size=$H_size   ishermitian=$H_isherm   isconstant=$H_isconst\n$datastring"
 
         L = QobjEvo(spre(a))
         opstring = sprint((t, s) -> show(t, "text/plain", s), L)
@@ -124,7 +124,7 @@
         L_isherm = isherm(L)
         L_isconst = isconstant(L)
         @test opstring ==
-              "Quantum Object Evo.:   type=SuperOperator   dims=$L_dims   size=$L_size   ishermitian=$L_isherm   isconstant=$L_isconst\n$datastring"
+              "\nQuantum Object Evo.:   type=SuperOperator   dims=$L_dims   size=$L_size   ishermitian=$L_isherm   isconstant=$L_isconst\n$datastring"
     end
 
     @testset "Type Inference (QobjEvo)" begin