Implement unit tests to verify the functionality of the class respons…

…ible for validating national identity numbers

test/Altinn.Profile.Tests/Profile.Integrations/NationalIdentityNumberCheckerTests.cs

@@ -0,0 +1,68 @@
+using System;
+using System.Collections.Generic;
+
+using Altinn.Profile.Integrations.Services;
+
+using Xunit;
+
+namespace Altinn.Profile.Tests.Profile.Integrations;
+
+public class NationalIdentityNumberCheckerTests
+{
+ private readonly NationalIdentityNumberChecker _checker;
+
+ public NationalIdentityNumberCheckerTests()
+ {
+ _checker = new NationalIdentityNumberChecker();
+ }
+
+ [Fact]
+ public void Categorize_NullInput_ThrowsArgumentNullException()
+ {
+ Assert.Throws<ArgumentNullException>(() => _checker.Categorize(null));
+ }
+
+ [Fact]
+ public void Categorize_ValidAndInvalidNumbers_ReturnsCorrectCategorization()
+ {
+ var input = new List<string> { "26050711071", "invalid_number", "06010190515" };
+ var (valid, invalid) = _checker.Categorize(input);
+
+ Assert.Single(invalid);
+ Assert.Equal(2, valid.Count);
+ Assert.Contains("26050711071", valid);
+ Assert.Contains("06010190515", valid);
+ Assert.Contains("invalid_number", invalid);
+ }
+
+ [Fact]
+ public void GetValid_NullInput_ThrowsArgumentNullException()
+ {
+ Assert.Throws<ArgumentNullException>(() => _checker.GetValid(null));
+ }
+
+ [Fact]
+ public void GetValid_ValidAndInvalidNumbers_ReturnsOnlyValidNumbers()
+ {
+ var input = new List<string> { "05112908325", "031IN0918959", "03110918959" };
+ var result = _checker.GetValid(input);
+
+ Assert.Equal(2, result.Count);
+ Assert.Contains("05112908325", result);
+ Assert.Contains("03110918959", result);
+ }
+
+ [Fact]
+ public void IsValid_ValidNumber_ReturnsTrue()
+ {
+ var result = _checker.IsValid("08033201398");
+ Assert.True(result);
+ }
+
+ [Fact]
+ public void IsValid_InvalidNumber_ReturnsFalse()
+ {
+ var result = _checker.IsValid("080332Q1398");
+ Assert.False(result);
+ }
+}