add missing test file for issue112

experiment/issue112.jl

@@ -0,0 +1,40 @@
+module issue112
+using Bcube
+
+mesh = one_cell_mesh(:line)
+dΩ = Measure(CellDomain(mesh), 1)
+U = TrialFESpace(FunctionSpace(:Lagrange, 0), mesh)
+V = TestFESpace(U)
+
+struct Parameters
+    x::Int
+end
+params = Parameters(1)
+
+# OK
+f1(v) = _f1 ∘ (v,)
+_f1(v) = v
+l1(v) = ∫(f1(v))dΩ
+a1 = assemble_linear(l1, V)
+
+# KO because attempting to materialize params::Parameters on CellInfo
+f2(v, params) = _f2 ∘ (v, params)
+_f2(v, params) = v
+@show "cas 2===="
+l2(v) = ∫(f2(v, params))dΩ
+a2 = assemble_linear(l2, V)
+
+# KO first arg params is not AbstractLazy
+function f3(params, v)
+    a = lazy_compose(_f3, (params, v))
+    Bcube.show_lazy_operator(a)
+    return a
+end
+@show "cas 3===="
+_f3(params, v) = v
+l3(v) = ∫(f3(params, v))dΩ
+a3 = assemble_linear(l3, V)
+
+@show a1 == a2 == a3
+
+end