twitch: add tests for Get Users

twitch/testdata/users.json

@@ -0,0 +1,17 @@
+{
+	"data": [
+		{
+			"id": "141981764",
+			"login": "twitchdev",
+			"display_name": "TwitchDev",
+			"type": "",
+			"broadcaster_type": "partner",
+			"description": "Supporting third-party developers building Twitch integrations from chatbots to game integrations.",
+			"profile_image_url": "https://static-cdn.jtvnw.net/jtv_user_pictures/8a6381c7-d0c0-4576-b179-38bd5ce1d6af-profile_image-300x300.png",
+			"offline_image_url": "https://static-cdn.jtvnw.net/jtv_user_pictures/3f13ab61-ec78-4fe6-8481-8682cb3b0ac2-channel_offline_image-1920x1080.png",
+			"view_count": 5980557,
+			"email": "[email protected]",
+			"created_at": "2016-12-14T20:32:28Z"
+		}
+	]
+}

twitch/user_test.go

@@ -0,0 +1,52 @@
+package twitch
+
+import (
+	"context"
+	"net/http"
+	"testing"
+
+	"github.com/google/go-cmp/cmp"
+	"golang.org/x/oauth2"
+)
+
+func TestUsers(t *testing.T) {
+	t.Run("decode", func(t *testing.T) {
+		spy := apiresp(200, "users.json")
+		cl := Client{
+			HTTP: &http.Client{
+				Transport: spy,
+			},
+			Token: &oauth2.Token{
+				AccessToken: "bocchi",
+			},
+		}
+		u := []User{
+			{ID: "141981764"},
+			{Login: "twitchdev"},
+		}
+		u, err := Users(context.Background(), cl, u)
+		if err != nil {
+			t.Error(err)
+		}
+		if len(u) != 1 {
+			t.Fatalf("wrong number of results: want 1, got %d", len(u))
+		}
+		want := User{
+			ID:              "141981764",
+			Login:           "twitchdev",
+			DisplayName:     "TwitchDev",
+			Type:            "",
+			BroadcasterType: "partner",
+			Description:     "Supporting third-party developers building Twitch integrations from chatbots to game integrations.",
+			ProfileImageURL: "https://static-cdn.jtvnw.net/jtv_user_pictures/8a6381c7-d0c0-4576-b179-38bd5ce1d6af-profile_image-300x300.png",
+			OfflineImageURL: "https://static-cdn.jtvnw.net/jtv_user_pictures/3f13ab61-ec78-4fe6-8481-8682cb3b0ac2-channel_offline_image-1920x1080.png",
+			ViewCount:       5980557,
+			Email:           "[email protected]",
+			CreatedAt:       "2016-12-14T20:32:28Z",
+		}
+		got := u[0]
+		if diff := cmp.Diff(got, want); diff != "" {
+			t.Errorf("wrong result (+got/-want):\n%s", diff)
+		}
+	})
+}