using Shouldly;
using Xunit;
using ZB.MOM.WW.OtOpcUa.Client.Shared.Helpers;

namespace ZB.MOM.WW.OtOpcUa.Client.Shared.Tests.Helpers;

public class ValueConverterTests
{
    [Fact]
    public void ConvertValue_Bool_True()
    {
        ValueConverter.ConvertValue("True", true).ShouldBe(true);
    }

    [Fact]
    public void ConvertValue_Bool_False()
    {
        ValueConverter.ConvertValue("False", false).ShouldBe(false);
    }

    [Fact]
    public void ConvertValue_Byte()
    {
        ValueConverter.ConvertValue("255", (byte)0).ShouldBe((byte)255);
    }

    [Fact]
    public void ConvertValue_Short()
    {
        ValueConverter.ConvertValue("-100", (short)0).ShouldBe((short)-100);
    }

    [Fact]
    public void ConvertValue_UShort()
    {
        ValueConverter.ConvertValue("65535", (ushort)0).ShouldBe((ushort)65535);
    }

    [Fact]
    public void ConvertValue_Int()
    {
        ValueConverter.ConvertValue("42", 0).ShouldBe(42);
    }

    [Fact]
    public void ConvertValue_UInt()
    {
        ValueConverter.ConvertValue("42", 0u).ShouldBe(42u);
    }

    [Fact]
    public void ConvertValue_Long()
    {
        ValueConverter.ConvertValue("9999999999", 0L).ShouldBe(9999999999L);
    }

    [Fact]
    public void ConvertValue_ULong()
    {
        ValueConverter.ConvertValue("18446744073709551615", 0UL).ShouldBe(ulong.MaxValue);
    }

    [Fact]
    public void ConvertValue_Float()
    {
        ValueConverter.ConvertValue("3.14", 0f).ShouldBe(3.14f);
    }

    [Fact]
    public void ConvertValue_Double()
    {
        ValueConverter.ConvertValue("3.14159", 0.0).ShouldBe(3.14159);
    }

    [Fact]
    public void ConvertValue_String_WhenCurrentIsString()
    {
        ValueConverter.ConvertValue("hello", "").ShouldBe("hello");
    }

    [Fact]
    public void ConvertValue_String_WhenCurrentIsNull()
    {
        ValueConverter.ConvertValue("hello", null).ShouldBe("hello");
    }

    [Fact]
    public void ConvertValue_String_WhenCurrentIsUnknownType()
    {
        ValueConverter.ConvertValue("hello", new object()).ShouldBe("hello");
    }

    [Fact]
    public void ConvertValue_InvalidBool_Throws()
    {
        Should.Throw<FormatException>(() => ValueConverter.ConvertValue("notabool", true));
    }

    [Fact]
    public void ConvertValue_InvalidInt_Throws()
    {
        Should.Throw<FormatException>(() => ValueConverter.ConvertValue("notanint", 0));
    }

    [Fact]
    public void ConvertValue_Overflow_Throws()
    {
        Should.Throw<OverflowException>(() => ValueConverter.ConvertValue("256", (byte)0));
    }
}