using Shouldly;
using Xunit;
using ZB.MOM.WW.LmxOpcUa.Host.Domain;

namespace ZB.MOM.WW.LmxOpcUa.Tests.Domain
{
    /// <summary>
    /// Verifies default and extended-field behavior for Galaxy attribute metadata objects.
    /// </summary>
    public class GalaxyAttributeInfoTests
    {
        /// <summary>
        /// Confirms that a default attribute metadata object starts with empty strings for its text fields.
        /// </summary>
        [Fact]
        public void DefaultValues_AreEmpty()
        {
            var info = new GalaxyAttributeInfo();
            info.PrimitiveName.ShouldBe("");
            info.AttributeSource.ShouldBe("");
            info.TagName.ShouldBe("");
            info.AttributeName.ShouldBe("");
            info.FullTagReference.ShouldBe("");
            info.DataTypeName.ShouldBe("");
            info.SecurityClassification.ShouldBe(1);
            info.IsHistorized.ShouldBeFalse();
            info.IsAlarm.ShouldBeFalse();
        }

        /// <summary>
        /// Confirms that primitive-name and attribute-source fields can be populated for extended metadata rows.
        /// </summary>
        [Fact]
        public void ExtendedFields_CanBeSet()
        {
            var info = new GalaxyAttributeInfo
            {
                PrimitiveName = "UDO",
                AttributeSource = "primitive"
            };
            info.PrimitiveName.ShouldBe("UDO");
            info.AttributeSource.ShouldBe("primitive");
        }

        /// <summary>
        /// Confirms that standard attribute rows leave the extended metadata fields empty.
        /// </summary>
        [Fact]
        public void StandardAttributes_HaveEmptyExtendedFields()
        {
            var info = new GalaxyAttributeInfo
            {
                GobjectId = 1,
                TagName = "TestObj",
                AttributeName = "MachineID",
                FullTagReference = "TestObj.MachineID",
                MxDataType = 5
            };
            info.PrimitiveName.ShouldBe("");
            info.AttributeSource.ShouldBe("");
        }
    }
}