Initial commit (history squashed)

src/StellaOps.Cryptography.Tests/PasswordHashOptionsTests.cs

@@ -0,0 +1,24 @@
+using StellaOps.Cryptography;
+
+namespace StellaOps.Cryptography.Tests;
+
+public class PasswordHashOptionsTests
+{
+    [Fact]
+    public void Validate_DoesNotThrow_ForDefaults()
+    {
+        var options = new PasswordHashOptions();
+        options.Validate();
+    }
+
+    [Fact]
+    public void Validate_Throws_WhenMemoryInvalid()
+    {
+        var options = new PasswordHashOptions
+        {
+            MemorySizeInKib = 0
+        };
+
+        Assert.Throws<InvalidOperationException>(options.Validate);
+    }
+}