--- a/test/Grids/equidistant_grid_test.jl	Tue Jan 23 20:48:25 2024 +0100
+++ b/test/Grids/equidistant_grid_test.jl	Sat May 25 16:07:10 2024 -0700
@@ -105,34 +105,36 @@
 
 
 @testset "equidistant_grid" begin
-    @test equidistant_grid(4,0.0,1.0) isa EquidistantGrid
-    @test equidistant_grid((4,3),(0.0,0.0),(8.0,5.0)) isa TensorGrid
+    @test equidistant_grid(0.0,1.0, 4) isa EquidistantGrid
+    @test equidistant_grid((0.0,0.0),(8.0,5.0), 4, 3) isa TensorGrid
 
     # constuctor
-    @test_throws DomainError equidistant_grid(0,0.0,1.0)
-    @test_throws DomainError equidistant_grid(1,1.0,1.0)
-    @test_throws DomainError equidistant_grid(1,1.0,-1.0)
+    @test_throws DomainError equidistant_grid(0.0, 1.0, 0)
+    @test_throws DomainError equidistant_grid(1.0, 1.0, 1)
+    @test_throws DomainError equidistant_grid(1.0, -1.0, 1)
 
-    @test_throws DomainError equidistant_grid((0,0),(0.0,0.0),(1.0,1.0))
-    @test_throws DomainError equidistant_grid((1,1),(1.0,1.0),(1.0,1.0))
-    @test_throws DomainError equidistant_grid((1,1),(1.0,1.0),(-1.0,-1.0))
+    @test_throws DomainError equidistant_grid((0.0,0.0),(1.0,1.0), 0, 0)
+    @test_throws DomainError equidistant_grid((1.0,1.0),(1.0,1.0), 1, 1)
+    @test_throws DomainError equidistant_grid((1.0,1.0),(-1.0,-1.0), 1, 1)
+
+    @test_throws ArgumentError equidistant_grid((0.0,),(8.0,5.0), 4, 3, 4)
 
     @testset "Base" begin
-        @test eltype(equidistant_grid(4,0.0,1.0)) == Float64
-        @test eltype(equidistant_grid((4,3),(0,0),(1,3))) <: AbstractVector{Float64}
+        @test eltype(equidistant_grid(0.0, 1.0, 4)) == Float64
+        @test eltype(equidistant_grid((0,0),(1,3), 4, 3)) <: AbstractVector{Float64}
 
-        @test size(equidistant_grid(4,0.0,1.0)) == (4,)
-        @test size(equidistant_grid((5,3), (0.0,0.0), (2.0,1.0))) == (5,3)
+        @test size(equidistant_grid(0.0, 1.0, 4)) == (4,)
+        @test size(equidistant_grid((0.0,0.0), (2.0,1.0), 5, 3)) == (5,3)
 
-        @test size(equidistant_grid((5,3), (0.0,0.0), (2.0,1.0)),1) == 5
-        @test size(equidistant_grid((5,3), (0.0,0.0), (2.0,1.0)),2) == 3
+        @test size(equidistant_grid((0.0,0.0), (2.0,1.0), 5, 3), 1) == 5
+        @test size(equidistant_grid((0.0,0.0), (2.0,1.0), 5, 3), 2) == 3
 
-        @test ndims(equidistant_grid(4,0.0,1.0)) == 1
-        @test ndims(equidistant_grid((5,3), (0.0,0.0), (2.0,1.0))) == 2
+        @test ndims(equidistant_grid(0.0, 1.0, 4)) == 1
+        @test ndims(equidistant_grid((0.0,0.0), (2.0,1.0), 5, 3)) == 2
     end
 
     @testset "getindex" begin
-        g = equidistant_grid((5,3), (-1.0,0.0), (0.0,7.11))
+        g = equidistant_grid((-1.0,0.0), (0.0,7.11), 5, 3)
         gp = collect(g);
         p = [(-1.,0.)      (-1.,7.11/2)   (-1.,7.11);
             (-0.75,0.)    (-0.75,7.11/2) (-0.75,7.11);