feat: implement static key provider

2026-04-01 12:45:57 -05:00
parent 25d13bb24b
commit f69317efe5
2 changed files with 76 additions and 0 deletions
@@ -0,0 +1,39 @@
+using StevanFreeborn.Extensions.Configuration.Secure.Cryptography;
+
+namespace StevanFreeborn.Extensions.Configuration.Secure.Tests.Unit.Cryptography;
+
+public class StaticKeyProviderTests
+{
+  [Fact]
+  public void Constructor_ShouldThrowArgumentNullException_WhenKeyIsNull()
+  {
+    var act = () => new StaticKeyProvider(null!);
+
+    act.Should().Throw<ArgumentNullException>();
+  }
+
+  [Fact]
+  public void Constructor_WhenCalledAndKeyIsNot32Bytes_ItShouldThrowArgumentException()
+  {
+    var shortKey = Convert.ToBase64String(new byte[16]);
+
+    var act = () => new StaticKeyProvider(shortKey);
+
+    act.Should().Throw<ArgumentException>().WithMessage("*must be exactly 32 bytes*");
+  }
+
+  [Fact]
+  public void GetKey_WhenCalled_ItShouldReturnValid32ByteArray()
+  {
+    var expectedBytes = new byte[32];
+    Random.Shared.NextBytes(expectedBytes);
+    var base64Key = Convert.ToBase64String(expectedBytes);
+
+    var provider = new StaticKeyProvider(base64Key);
+
+    var result = provider.GetKey();
+
+    result.Should().BeEquivalentTo(expectedBytes);
+    result.Length.Should().Be(32);
+  }
+}