--- a/test/SbpOperators/volumeops/derivatives/first_derivative_test.jl	Fri Jun 28 21:40:19 2024 +0200
+++ b/test/SbpOperators/volumeops/derivatives/first_derivative_test.jl	Sun Jun 30 10:57:05 2024 +0200
@@ -7,19 +7,6 @@
 
 using Sbplib.SbpOperators: closure_size, Stencil, VolumeOperator
 
-"""
-    monomial(x,k)
-
-Evaluates ``x^k/k!` with the convetion that it is ``0`` for all ``k<0``.
-Has the property that ``d/dx monomial(x,k) = monomial(x,k-1)``
-"""
-function monomial(x,k)
-    if k < 0
-        return zero(x)
-    end
-    x^k/factorial(k)
-end
-
 @testset "first_derivative" begin
     @testset "Constructors" begin
         stencil_set = read_stencil_set(sbp_operators_path()*"standard_diagonal.toml"; order=2)
@@ -39,6 +26,8 @@
     @testset "Accuracy conditions" begin
         N = 20
         g = equidistant_grid(0//1, 2//1, N)
+
+        monomial(x,k) = k < 0 ? zero(x) : x^k/factorial(k)
         @testset for order ∈ [2,4]
             stencil_set = read_stencil_set(sbp_operators_path()*"standard_diagonal.toml"; order)
             D₁ = first_derivative(g, stencil_set)