Update test_calculus.jl

JuliaApproximation · Jan 26, 2025 · 272975f · 272975f
1 parent 97dd159
commit 272975f
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/test/test_calculus.jl b/test/test_calculus.jl
@@ -71,4 +71,10 @@ using QuasiArrays, IntervalSets, Test
         @test diff(ones(Base.OneTo(3), Inclusion(0.0..1))) ≡ zeros(Base.OneTo(2), Inclusion(0.0..1))
         @test diff(ones(Base.OneTo(3), Inclusion(0.0..1)); dims=2) ≡ zeros(Base.OneTo(3), Inclusion(0.0..1))
     end
+
+    @testset "Incomplete" begin
+        struct IncompleteQuasiArray <: AbstractQuasiVector{Int} end
+        Base.axes(::IncompleteQuasiArray) = (Base.OneTo(3),)
+        @test_throws ErrorException diff(IncompleteQuasiArray())
+    end
 end