add profilepicture test

pkg/api/ivr/profilepicture_test.go

@@ -0,0 +1,18 @@
+package ivr
+
+import "testing"
+
+func TestProfilePicture(t *testing.T) {
+	t.Run("returns a link to a users profile picture", func(t *testing.T) {
+		request, _ := ProfilePicture("forsen")
+		response := "https://static-cdn.jtvnw.net/jtv_user_pictures/forsen-profile_image-48b43e1e4f54b5c8-600x600.png"
+
+		got := request
+		want := response
+
+		if got != want {
+			t.Errorf("got %q, want %q", got, want)
+		}
+
+	})
+}