Mocking ADAL for Unit Tests

AuthenticationContextWrapper.cs

public class AuthenticationContextWrapper : IAuthenticationContextWrapper
{
  public AuthenticationContextWrapper(AuthenticationContext context)
  {
    this.Context = context;
  }

  public AuthenticationContextWrapper(string authority)
  {
    this.Context = new AuthenticationContext(authority);
  }

  public AuthenticationContextWrapper(string authority, bool validateAuthority)
  {
    this.Context = new AuthenticationContext(authority, validateAuthority);
  }

  public AuthenticationContextWrapper(string authority, bool validateAuthority, TokenCache tokenCache)
  {
    this.Context = new AuthenticationContext(authority, validateAuthority, tokenCache);
  }

  public AuthenticationContext Context { get; }

  public string Authority => this.Context.Authority;

  public bool ValidateAuthority => this.Context.ValidateAuthority;

  ...

  public async Task<IDeviceCodeResultWrapper> AcquireDeviceCodeAsync(string resource, string clientId)
  {
    var result = await this.Context.AcquireDeviceCodeAsync(resource, clientId).ConfigureAwait(false);
    return new DeviceCodeResultWrapper(result);
  }

  ...

  public async Task<IAuthenticationResultWrapper> AcquireTokenAsync(string resource, string clientId, UserCredential userCredential)
  {
    var result = await this.Context.AcquireTokenAsync(resource, clientId, userCredential).ConfigureAwait(false);
    return new AuthenticationResultWrapper(result);
  }

  ...

  public async Task<IAuthenticationResultWrapper> AcquireTokenAsync(string resource, ClientCredential clientCredential)
  {
    var result = await this.Context.AcquireTokenAsync(resource, clientCredential).ConfigureAwait(false);
    return new AuthenticationResultWrapper(result);
  }

  ...
}