anthropic-client/tests/AnthropicClient.Tests/Unit/Utils/JsonSchemaGeneratorTests.cs

using System.Text.Json.Nodes;

namespace AnthropicClient.Tests.Unit.Models;

public class JsonSchemaGeneratorTests
{
  [Fact]
  public void GenerateInputSchema_GivenFunctionWithNoParameters_ReturnsSchemaWithTypeObject()
  {
    var expectedSchema = new JsonObject
    {
      ["type"] = "object"
    };
    var testMethod = () => true;
    var function = new AnthropicFunction(testMethod.Method);
    
    var schema = JsonSchemaGenerator.GenerateInputSchema(function);

    JsonAssert.Equal(expectedSchema, schema);
  }

  [Fact]
  public void GenerateInputSchema_GivenFunctionWithParameterThatHasDefaultValue_ItShouldReturnSchemaWithPropertyNameDescriptionAndNoRequiredProperties()
  {
    var expectedSchema = new JsonObject()
    {
      ["type"] = "object",
      ["properties"] = new JsonObject()
      {
        ["age"] = new JsonObject()
        {
          ["description"] = string.Empty
        }
      },
      ["required"] = new JsonArray(),
    };

    var testMethod = (int age) => age;
    var function = new AnthropicFunction(testMethod.Method);
    
    var schema = JsonSchemaGenerator.GenerateInputSchema(function);

    JsonAssert.Equal(expectedSchema, schema);
  }
}