Add tests for generated function signatures fix.

Author: MichaelHatherly

test/TestModule/M.jl

@@ -15,6 +15,9 @@ h_2(x::A{Int}) = x
 h_3(x::A{T}) where {T} = x
 h_4(x, ::Int, z) = x
 
+@generated g_1(x) = x
+@generated g_2(x::Integer) = x
+
 i_1(x; y = x) = x * y
 i_2(x::Int; y = x) = x * y
 i_3(x::T; y = x) where {T} = x * y

test/tests.jl

@@ -166,6 +166,17 @@ end
             @test occursin("\ng(x, y, z; kwargs...)\n", str)
             @test occursin("\n```\n", str)
 
+            doc.data = Dict(
+                :binding => Docs.Binding(M, :g_1),
+                :typesig => Tuple{Any},
+                :module => M,
+            )
+            DSE.format(SIGNATURES, buf, doc)
+            str = String(take!(buf))
+            @test occursin("\n```julia\n", str)
+            @test occursin("\ng_1(x)\n", str)
+            @test occursin("\n```\n", str)
+
             doc.data = Dict(
                 :binding => Docs.Binding(M, :h_4),
                 :typesig => Union{Tuple{Any, Int, Any}},
@@ -196,6 +207,16 @@ end
             end
             @test occursin("\n```\n", str)
 
+            doc.data = Dict(
+                :binding => Docs.Binding(M, :g_2),
+                :typesig => Tuple{Integer},
+                :module => M,
+            )
+            DSE.format(TYPEDSIGNATURES, buf, doc)
+            str = String(take!(buf))
+            @test occursin("\n```julia\n", str)
+            @test occursin("\ng_2(x::Integer)", str)
+            @test occursin("\n```\n", str)
 
             doc.data = Dict(
                 :binding => Docs.Binding(M, :h),