message: gets GetDidMetadataTest working
diff: @@ -29,7 +29,7 @@ namespace Hyperledger.Indy.Test.SignusTests
  [TestMethod]
  public async Task TestGetDidMetadataWorksForNoMetadata()
  {
  - var ex = await Assert.ThrowsExceptionAsync<WalletValueNotFoundException>(() =>
  + var ex = await Assert.ThrowsExceptionAsync<WalletItemNotFoundException>(() =>
  Did.GetDidMetadataAsync(wallet, DID1)
  );
  }
  