add more enum tests

Author: jw3126

test/runtests.jl

@@ -83,17 +83,41 @@ struct SErrors;a;b;c;end
 end
 
 @enum Color Red Blue Green
+
 @enumbatteries Color string_conversion = true symbol_conversion = true
 
+@enum Shape Circle Square 
+@enumbatteries Shape symbol_conversion =true
+
 @testset "@enumbatteries" begin
     @test Red === @inferred Color("Red")
     @test Red === @inferred convert(Color, "Red")
     @test "Red" === @inferred String(Red)
     @test "Red" === @inferred convert(String, Red)
+    @test_throws ArgumentError Color("Nonsense")
 
     @test :Red === @inferred Symbol(Red)
     @test :Red === @inferred convert(Symbol, Red)
     @test Red === @inferred Color(:Red)
     @test Red === @inferred convert(Color, :Red)
-
+    @test_throws ArgumentError Color(:Nonsense)
+    res = @test_throws ArgumentError convert(Color, :nonsense)
+    @test occursin(":nonsense", res.value.msg)
+    @test occursin(":Red", res.value.msg)
+    @test occursin(":Blue", res.value.msg)
+    @test occursin(":Green", res.value.msg)
+
+    @test :Circle === @inferred Symbol(Circle)
+    @test :Circle === @inferred convert(Symbol, Circle)
+    @test Circle === @inferred Shape(:Circle)
+    @test Circle === @inferred convert(Shape, :Circle)
+    @test_throws ArgumentError Shape(:Nonsense)
+    res = @test_throws ArgumentError convert(Shape, :nonsense)
+    @test occursin(":Circle", res.value.msg)
+    @test occursin(":Square", res.value.msg)
+
+    @test_throws Exception String(Circle)
+    @test_throws Exception convert(String, Circle)
+    @test_throws Exception Shape("Circle")
+    @test_throws Exception convert(Shape, "Circle")
 end