adding

LCU.API.Internal.Document/OwnerNumberMigrationTest/ValueParsing/SingleValueStrategyTest.cs

@@ -0,0 +1,18 @@
+using OwnerNumberMigration.ValueParsing;
+
+namespace OwnerNumberMigrationTest.ValueParsing;
+
+public class SingleValueStrategyTest
+{
+    private readonly IValueParsingStrategy<string> _parsingStrategy = new SingleValueStrategy();
+
+    [Test]
+    public void ParseOwners_AllCases_ReturnsAnArrayContainingOnlyTheValue()
+    {
+        var account = Guid.NewGuid().ToString();
+
+        var parsedAccount = _parsingStrategy.Parse(account);
+
+        Assert.AreEqual(account, parsedAccount);
+    }
+}