fix: adds missing type mappings tests

Author: baywet

src/Microsoft.OpenApi/Extensions/OpenApiTypeMapper.cs

@@ -101,7 +101,7 @@ public static Type MapOpenApiPrimitiveTypeToSimpleType(this OpenApiSchema schema
                 // integer is technically not valid with format, but we must provide some compatibility
                 ("integer" or "number", "int32", false) => typeof(int),
                 ("integer" or "number", "int64", false) => typeof(long),
-                ("integer", null, false) => typeof(int),
+                ("integer", null, false) => typeof(long),
                 ("number", "float", false) => typeof(float),
                 ("number", "double", false) => typeof(double),
                 ("number", "decimal", false) => typeof(decimal),
@@ -116,7 +116,7 @@ public static Type MapOpenApiPrimitiveTypeToSimpleType(this OpenApiSchema schema
                 ("string", "uri", false) => typeof(Uri),
                 ("integer" or "number", "int32", true) => typeof(int?),
                 ("integer" or "number", "int64", true) => typeof(long?),
-                ("integer", null, true) => typeof(int?),
+                ("integer", null, true) => typeof(long?),
                 ("number", "float", true) => typeof(float?),
                 ("number", "double", true) => typeof(double?),
                 ("number", null, true) => typeof(double?),

test/Microsoft.OpenApi.Tests/Extensions/OpenApiTypeMapperTests.cs

@@ -16,10 +16,13 @@ public class OpenApiTypeMapperTests
         {
             new object[] { typeof(int), new OpenApiSchema { Type = "number", Format = "int32" } },
             new object[] { typeof(decimal), new OpenApiSchema { Type = "number", Format = "double" } },
+            new object[] { typeof(decimal?), new OpenApiSchema { Type = "number", Format = "double", Nullable = true } },
             new object[] { typeof(bool?), new OpenApiSchema { Type = "boolean", Nullable = true } },
             new object[] { typeof(Guid), new OpenApiSchema { Type = "string", Format = "uuid" } },
+            new object[] { typeof(Guid?), new OpenApiSchema { Type = "string", Format = "uuid", Nullable = true } },
             new object[] { typeof(uint), new OpenApiSchema { Type = "number", Format = "int32" } },
             new object[] { typeof(long), new OpenApiSchema { Type = "number", Format = "int64" } },
+            new object[] { typeof(long?), new OpenApiSchema { Type = "number", Format = "int64", Nullable = true } },
             new object[] { typeof(ulong), new OpenApiSchema { Type = "number", Format = "int64" } },
             new object[] { typeof(string), new OpenApiSchema { Type = "string" } },
             new object[] { typeof(double), new OpenApiSchema { Type = "number", Format = "double" } },
@@ -35,11 +38,15 @@ public class OpenApiTypeMapperTests
 
         public static IEnumerable<object[]> OpenApiDataTypes => new List<object[]>
         {
-            new object[] { new OpenApiSchema { Type = "number", Format = "int32"}, typeof(int) },
+            new object[] { new OpenApiSchema { Type = "number", Format = "int32", Nullable = false}, typeof(int) },
+            new object[] { new OpenApiSchema { Type = "number", Format = "int32", Nullable = true}, typeof(int?) },
+            new object[] { new OpenApiSchema { Type = "number", Format = "int64", Nullable = false}, typeof(long) },
+            new object[] { new OpenApiSchema { Type = "number", Format = "int64", Nullable = true}, typeof(long?) },
             new object[] { new OpenApiSchema { Type = "number", Format = "decimal"}, typeof(decimal) },
+            new object[] { new OpenApiSchema { Type = "integer", Format = null, Nullable = false}, typeof(long) },
+            new object[] { new OpenApiSchema { Type = "integer", Format = null, Nullable = true}, typeof(long?) },
             new object[] { new OpenApiSchema { Type = "number", Format = null, Nullable = false}, typeof(double) },
-            new object[] { new OpenApiSchema { Type = "number", Format = null, Nullable = false}, typeof(int) },
-            new object[] { new OpenApiSchema { Type = "number", Format = null, Nullable = true}, typeof(int?) },
+            new object[] { new OpenApiSchema { Type = "number", Format = null, Nullable = true}, typeof(double?) },
             new object[] { new OpenApiSchema { Type = "number", Format = "decimal", Nullable = true}, typeof(decimal?) },
             new object[] { new OpenApiSchema { Type = "number", Format = "double", Nullable = true}, typeof(double?) },
             new object[] { new OpenApiSchema { Type = "string", Format = "date-time", Nullable = true}, typeof(DateTimeOffset?) },