public async Task GetPageComments_ShouldReturnOneComment_WhenCommentsListHasOneComment()
{
// Arrange
var comments = new FacebookCommentsPage
{
Comments = new List <FacebookComment>
{
new FacebookComment {
Id = "id"
}
}
};
_httpMockHandler.When(FacebookOkCommentsUrlPattern)
.Respond(HttpStatusCode.OK, "application/json", "{}");
_jsonParser.ParseJsonResponse <FacebookCommentsPage>(Arg.Any <string>())
.Returns(comments, null, null); // null stops recursion
var wrapper = new FacebookCommentsApiWrapper(_httpClientFactory, _jsonParser);
// Act
var result = await wrapper.GetPageCommentsAsync("accessToken", "pageId");
// Assert
result.Should().HaveCount(1);
result.FirstOrDefault().Children.Should().BeEmpty();
}
public void GetAccessToken_ShouldThrowArgumentNullException_WhenAppSecretIsInvalid(string appSecret)
{
// Arrange
var wrapper = new FacebookCommentsApiWrapper(_httpClientFactory, _jsonParser);
// Act
Func <Task> action = async() => await wrapper.GetAccessTokenAsync("appId", appSecret);
// Assert
action.ShouldThrow <ArgumentNullException>();
}
public void GetPageComments_ShouldThrowArgumentNullException_WhenPageIdIsInvalid(string pageId)
{
// Arrange
var wrapper = new FacebookCommentsApiWrapper(_httpClientFactory, _jsonParser);
// Act
Func <Task> action = async() => await wrapper.GetPageCommentsAsync("accessToken", pageId);
// Assert
action.ShouldThrow <ArgumentNullException>();
}
public void GetAccessToken_ShouldThrowFacebookApiException_WhenClientReponseIsNotSuccess()
{
// Arrange
_httpMockHandler.When("*")
.Respond(HttpStatusCode.InternalServerError, "application/json", string.Empty);
var wrapper = new FacebookCommentsApiWrapper(_httpClientFactory, _jsonParser);
// Act
Func <Task> action = async() => await wrapper.GetAccessTokenAsync("appId", "appSecret");
// Assert
action.ShouldThrow <FacebookApiException>()
.And.Message.Should().Be("Http client response was not successful.");
}
public async Task GetPageComments_ShouldReturnEmptyList_WhenPageIsNull()
{
// Arrange
_httpMockHandler.When(FacebookOkCommentsUrlPattern)
.Respond(HttpStatusCode.OK, "application/json", "{}");
_jsonParser.ParseJsonResponse <FacebookCommentsPage>(Arg.Any <string>()).Returns(null as FacebookCommentsPage);
var wrapper = new FacebookCommentsApiWrapper(_httpClientFactory, _jsonParser);
// Act
var result = await wrapper.GetPageCommentsAsync("accessToken", "pageId");
// Assert
result.Should().BeEmpty();
}
public void GetPageComments_ShouldThrowFacebookApiException_WhenClientReponseContentIsEmpty()
{
// Arrange
_httpMockHandler.When(FacebookOkCommentsUrlPattern)
.Respond(HttpStatusCode.OK, "application/json", string.Empty);
var wrapper = new FacebookCommentsApiWrapper(_httpClientFactory, _jsonParser);
// Act
Func <Task> action = async() => await wrapper.GetPageCommentsAsync("accessToken", "pageId");
// Assert
action.ShouldThrow <FacebookApiException>()
.And.Message.Should().Be("Http client response is empty.");
}
public void GetAccessToken_ShouldThrowFacebookApiException_WhenClientReponseParsingReturnsNull()
{
// Arrange
_httpMockHandler.When("*")
.Respond(HttpStatusCode.OK, "application/json", "content");
_jsonParser.ParseJsonResponse <FacebookAccessToken>(Arg.Any <string>())
.Returns(null as FacebookAccessToken);
var wrapper = new FacebookCommentsApiWrapper(_httpClientFactory, _jsonParser);
// Act
Func <Task> action = async() => await wrapper.GetAccessTokenAsync("appId", "appSecret");
// Assert
action.ShouldThrow <FacebookApiException>()
.And.Message.Should().Be("Token parsing failed.");
}
public async Task GetPageComments_ShouldReturnOneCommentWithOneChild_WhenCommentsListHasOneCommentWithReply()
{
// Arrange
const string commentId = "comment";
const string replyId = "reply";
var comments = new FacebookCommentsPage
{
Comments = new List <FacebookComment>
{
new FacebookComment
{
Id = commentId
}
}
};
var comments2 = new FacebookCommentsPage
{
Comments = new List <FacebookComment>
{
new FacebookComment
{
Id = replyId
}
}
};
_httpMockHandler.When(FacebookOkCommentsUrlPattern)
.Respond(HttpStatusCode.OK, "application/json", "{}");
_jsonParser.ParseJsonResponse <FacebookCommentsPage>(Arg.Any <string>())
.Returns(comments, comments2, null); // second call returns reply, and null stops recursion
var wrapper = new FacebookCommentsApiWrapper(_httpClientFactory, _jsonParser);
// Act
var result = await wrapper.GetPageCommentsAsync("accessToken", "pageId");
// Assert
result.Should().HaveCount(1);
result.FirstOrDefault().Id.Should().Be(commentId);
result.FirstOrDefault().Children.Should().HaveCount(1);
result.FirstOrDefault().Children.FirstOrDefault().Id.Should().Be(replyId);
}
public async Task GetAccessToken_ShouldReturnAccessToken_WhenClientReponseContentContainsAccessToken()
{
// Arrange
const string accessToken = "123";
_httpMockHandler.When("https://graph.facebook.com/oauth/access_token*")
.Respond(HttpStatusCode.OK, "application/json", "content");
_jsonParser.ParseJsonResponse <FacebookAccessToken>(Arg.Any <string>())
.Returns(new FacebookAccessToken
{
AccessToken = accessToken
});
var wrapper = new FacebookCommentsApiWrapper(_httpClientFactory, _jsonParser);
// Act
var result = await wrapper.GetAccessTokenAsync("appId", "appSecret");
// Assert
result.Should().Be(accessToken);
}
