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package twitter_test
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import (
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"errors"
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"io"
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"net/http"
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"strings"
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"testing"
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"git.netflux.io/rob/elon-eats-my-tweets/generated/mocks"
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"git.netflux.io/rob/elon-eats-my-tweets/twitter"
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"github.com/stretchr/testify/assert"
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)
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func TestGetMe(t *testing.T) {
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testCases := []struct {
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name string
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responseStatusCode int
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responseBody io.Reader
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responseErr error
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wantUser *twitter.User
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wantErr string
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}{
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{
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name: "successful request",
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responseStatusCode: 200,
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responseBody: strings.NewReader(`{"Data": {"id": "1", "name": "foo", "username": "foo bar"}}`),
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wantUser: &twitter.User{ID: "1", Name: "foo", Username: "foo bar"},
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},
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{
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name: "network error",
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responseErr: errors.New("boom"),
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wantErr: "error fetching resource: boom",
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},
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{
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name: "500 response",
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responseStatusCode: 500,
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responseBody: strings.NewReader("whale"),
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wantUser: nil,
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wantErr: "error fetching resource: status code 500",
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},
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{
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name: "decoder error",
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responseStatusCode: 200,
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responseBody: strings.NewReader("<html></html>"),
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wantUser: nil,
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wantErr: "error decoding resource: invalid character '<' looking for beginning of value",
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},
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}
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for _, tc := range testCases {
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t.Run(tc.name, func(t *testing.T) {
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var getter mocks.Getter
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getter.
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On("Get", "https://api.twitter.com/2/users/me").
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Return(&http.Response{StatusCode: tc.responseStatusCode, Body: io.NopCloser(tc.responseBody)}, tc.responseErr)
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client := twitter.NewAPIClient(&getter)
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user, err := client.GetMe()
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assert.Equal(t, tc.wantUser, user)
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if tc.wantErr == "" {
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assert.NoError(t, err)
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} else {
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assert.EqualError(t, err, tc.wantErr)
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}
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})
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}
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}
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func TestGetTweets(t *testing.T) {
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const (
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userID = "1"
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sinceID = "2"
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)
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testCases := []struct {
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name string
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responseStatusCode int
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responseBody io.Reader
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responseErr error
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wantTweets []*twitter.Tweet
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wantErr string
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}{
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{
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name: "successful request",
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responseStatusCode: 200,
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responseBody: strings.NewReader(`{"Data": [{"id": "101", "text": "foo"}, {"id": "102", "text": "bar"}]}`),
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wantTweets: []*twitter.Tweet{{ID: "101", Text: "foo"}, {ID: "102", Text: "bar"}},
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},
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{
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name: "network error",
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responseErr: errors.New("network error"),
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wantTweets: nil,
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wantErr: "error fetching resource: network error",
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},
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{
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name: "500 response",
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responseStatusCode: 500,
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responseBody: strings.NewReader("whale"),
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wantTweets: nil,
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wantErr: "error fetching resource: status code 500",
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},
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{
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name: "decoder error",
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responseStatusCode: 200,
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responseBody: strings.NewReader("<html></html>"),
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wantTweets: nil,
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wantErr: "error decoding resource: invalid character '<' looking for beginning of value",
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},
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}
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for _, tc := range testCases {
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t.Run(tc.name, func(t *testing.T) {
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var getter mocks.Getter
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getter.
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On("Get", "https://api.twitter.com/2/users/"+userID+"/tweets?since_id="+sinceID).
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Return(&http.Response{StatusCode: tc.responseStatusCode, Body: io.NopCloser(tc.responseBody)}, tc.responseErr)
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client := twitter.NewAPIClient(&getter)
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tweets, err := client.GetTweets(userID, sinceID)
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assert.Equal(t, tc.wantTweets, tweets)
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if tc.wantErr == "" {
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assert.NoError(t, err)
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} else {
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assert.EqualError(t, err, tc.wantErr)
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}
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})
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}
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}
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