public async Task ReadErrorResponse_AlternateErrorFormat_ReturnsNotNull()
{
// arrange
const string content = "{\"error\":\"invalid_grant\",\"error_description\":\"Invalid authorization code\"}";
var response = new HttpResponseMessage(HttpStatusCode.BadRequest)
{
Content = new StringContent(content, Encoding.Unicode, "application/json")
};
var j = JsonConvert.DeserializeObject(content) as JObject;
var t = j["error"].Type;
Debug.WriteLine($"error type = {t}");
Debug.WriteLine($"error_description = {j["error_description"].Value<string>()}");
if (j.ContainsKey("foo"))
{
var t2 = j["foo"].Type;
Debug.WriteLine($"foo type = {t2}");
}
// act
var error = await SpotifyApiErrorException.ReadErrorResponse(response);
// assert
Assert.IsNotNull(error);
}
public async Task ReadErrorResponse_ValidJson_ReturnsNotNull()
{
// arrange
const string content = @"{
""error"": {
""status"": 404,
""message"": ""No active device found""
}
}";
var response = new HttpResponseMessage(HttpStatusCode.NotFound)
{
Content = new StringContent(content, Encoding.Unicode, "application/json")
};
var j = JsonConvert.DeserializeObject(content) as JObject;
var t = j["error"].Type;
Debug.WriteLine($"error type = {t}");
Debug.WriteLine($"error.message = {j["error"].Value<string>("message")}");
Debug.WriteLine($"error.foo = {j["error"].Value<string>("foo")}");
// act
var error = await SpotifyApiErrorException.ReadErrorResponse(response);
// assert
Assert.IsNotNull(error);
}
public async Task ReadErrorResponse_NoContent_ReturnsNull()
{
// arrange
var response = new HttpResponseMessage(HttpStatusCode.NotFound);
// act
var error = await SpotifyApiErrorException.ReadErrorResponse(response);
// assert
Assert.IsNull(error);
}
/// <summary>
/// Checks the reponse from the Spotify Server for an error.
/// </summary>
/// <param name="response"></param>
/// <returns>If a Spotify API Error message is parsed, a <see cref="SpotifyApiErrorException"/> is thrown.
/// If any other error is returned a <see cref="HttpResponseMessageException"/> if thrown. If no error
/// the method returns void.</returns>
public static async Task CheckForErrors(HttpResponseMessage response)
{
if (!response.IsSuccessStatusCode)
{
var error = await SpotifyApiErrorException.ReadErrorResponse(response);
if (error != null)
{
throw new SpotifyApiErrorException(response.StatusCode, error);
}
response.EnsureSuccessStatusCode(); // not a Spotify API Error so throw HttpResponseMessageException
}
}
public async Task ReadErrorResponse_EmptyPlainText_ReturnsNull()
{
// arrange
var response = new HttpResponseMessage(HttpStatusCode.NotFound)
{
Content = new StringContent("", Encoding.Unicode, "text/plain")
};
// act
var error = await SpotifyApiErrorException.ReadErrorResponse(response);
// assert
Assert.IsNull(error);
}