Add reusable crafting stations, recipes and validation

tests/CraftStationTests.cs

@@ -0,0 +1,35 @@
+namespace Cthangover.Mods.Crafting.Tests
+{
+    using System.Collections.Generic;
+    using System.Text.Json;
+    using Cthangover.Core.Items;
+    using Cthangover.Core.Mods.Testing;
+
+    /// <summary>Stations and existing recipe definitions are portable JSON data, with no map or game reference.</summary>
+    public class CraftStationTests
+    {
+        [ModTest("craft/station_and_recipe_json_round_trip")]
+        static void RoundTrip(ModTestContext ctx)
+        {
+            var station = new CraftStation { ID = "test/bench", Name = "test/name", Recipes = new List<string> { "test/salve", "test/lantern" } };
+            var restored = JsonSerializer.Deserialize<CraftStation>(JsonSerializer.Serialize(station));
+            ModAssert.Equal(station.ID, restored.ID, "station id");
+            ModAssert.Equal(station.Name, restored.Name, "station title");
+            ModAssert.Equal(2, restored.Recipes.Count, "recipe count");
+            ModAssert.Equal("test/lantern", restored.Recipes[1], "recipe order");
+            var recipe = new RecipeInfo { ID = "test/salve", Name = "test/name", Description = "test/desc", Time = 6,
+                Input = new List<IngredientInfo> { new() { ID = "test/mushroom", Count = 2 } },
+                Output = new List<IngredientInfo> { new() { ID = "test/salve", Count = 1 } } };
+            var again = JsonSerializer.Deserialize<RecipeInfo>(JsonSerializer.Serialize(recipe));
+            ModAssert.Equal(recipe.ID, again.ID, "recipe id");
+            ModAssert.Equal(recipe.Name, again.Name, "recipe name");
+            ModAssert.Equal(recipe.Description, again.Description, "description");
+            ModAssert.Equal((int)recipe.Type, (int)again.Type, "station type retained");
+            ModAssert.Equal(6, again.Time, "duration");
+            ModAssert.Equal("test/mushroom", again.Input[0].ID, "ingredient");
+            ModAssert.Equal(2, again.Input[0].Count, "ingredient count");
+            ModAssert.Equal("test/salve", again.Output[0].ID, "product");
+            ModAssert.Equal(1, again.Output[0].Count, "product count");
+        }
+    }
+}