#545 Validate the constructors and JSON serialization behavior of the…

… PartyDetailsLookupRequest class across diverse scenarios.

test/Altinn.Notifications.Tests/Notifications.Core/TestingModels/PartyDetailsLookupRequestTests.cs

@@ -0,0 +1,105 @@
+using System;
+using System.Text.Json;
+
+using Altinn.Notifications.Core.Models.Parties;
+
+using Xunit;
+
+namespace Altinn.Notifications.Tests.Notifications.Core.TestingModels;
+
+public class PartyDetailsLookupRequestTests
+{
+    [Fact]
+    public void Constructor_WithBothOrganizationNumberAndSocialSecurityNumber_ThrowsArgumentException()
+    {
+        // Arrange
+        var organizationNumber = "314204298";
+        var socialSecurityNumber = "09827398702";
+
+        // Act & Assert
+        var exception = Assert.Throws<ArgumentException>(() => new PartyDetailsLookupRequest(organizationNumber, socialSecurityNumber));
+        Assert.Equal("You can specify either an OrganizationNumber or a SocialSecurityNumber, but not both.", exception.Message);
+    }
+
+    [Fact]
+    public void Constructor_WithNoParameters_SetsBothPropertiesToNull()
+    {
+        // Act
+        var request = new PartyDetailsLookupRequest();
+
+        // Assert
+        Assert.Null(request.OrganizationNumber);
+        Assert.Null(request.SocialSecurityNumber);
+    }
+
+    [Fact]
+    public void Constructor_WithOrganizationNumberOnly_SetsOrganizationNumber()
+    {
+        // Arrange
+        var organizationNumber = "314204298";
+
+        // Act
+        var request = new PartyDetailsLookupRequest(organizationNumber: organizationNumber);
+
+        // Assert
+        Assert.Equal(organizationNumber, request.OrganizationNumber);
+        Assert.Null(request.SocialSecurityNumber);
+    }
+
+    [Fact]
+    public void Constructor_WithSocialSecurityNumberOnly_SetsSocialSecurityNumber()
+    {
+        // Arrange
+        var socialSecurityNumber = "09827398702";
+
+        // Act
+        var request = new PartyDetailsLookupRequest(socialSecurityNumber: socialSecurityNumber);
+
+        // Assert
+        Assert.Equal(socialSecurityNumber, request.SocialSecurityNumber);
+        Assert.Null(request.OrganizationNumber);
+    }
+
+    [Fact]
+    public void JsonSerialization_WithNullProperties_ExcludesNullProperties()
+    {
+        // Arrange
+        var request = new PartyDetailsLookupRequest();
+
+        // Act
+        var json = JsonSerializer.Serialize(request);
+
+        // Assert
+        Assert.DoesNotContain("\"orgNo\"", json);
+        Assert.DoesNotContain("\"ssn\"", json);
+        Assert.Equal("{}", json);
+    }
+
+    [Fact]
+    public void JsonSerialization_WithOrganizationNumber_OnlyIncludesOrganizationNumber()
+    {
+        // Arrange
+        var request = new PartyDetailsLookupRequest(organizationNumber: "314204298");
+
+        // Act
+        var json = JsonSerializer.Serialize(request);
+
+        // Assert
+        Assert.Contains("\"orgNo\":\"314204298\"", json);
+        Assert.DoesNotContain("\"ssn\"", json);
+    }
+
+    [Fact]
+    public void JsonSerialization_WithSocialSecurityNumber_OnlyIncludesSocialSecurityNumber()
+    {
+        // Arrange
+        var request = new PartyDetailsLookupRequest(socialSecurityNumber: "09827398702");
+
+        // Act
+        var json = JsonSerializer.Serialize(request);
+
+        // Assert
+        Assert.Contains("\"ssn\":\"09827398702\"", json);
+        Assert.DoesNotContain("\"orgNo\"", json);
+    }
+}