package main

import (
	"context"
	"net/http"
	"net/http/httptest"
	"testing"
)

var feedSourceTests = []struct {
	filename string
	title    string
	itemText string
}{
	{
		filename: "/xkcd.xml",
		title:    "xkcd.com",
		itemText: "Occam",
	},
}

func TestFeedSource(t *testing.T) {
	server := httptest.NewServer(http.FileServer(http.Dir("testdata")))
	defer server.Close()

	ctx, cancel := context.WithCancel(context.Background())
	defer cancel()
	for _, tt := range feedSourceTests {
		src := NewFeed(server.URL + tt.filename)
		src.update(ctx)
		if err := src.Error; err != nil {
			t.Errorf("%v: Error = %v, expected nil", tt.filename, err)
			continue
		}
		if src.Title != tt.title {
			t.Errorf("%v: Title = %v expected %v", tt.filename, src.Title, tt.title)
		}
		items := src.GetItems()
		if len(items) == 0 {
			t.Errorf("%v: GetItems() = %v expected len > 0", tt.filename, items)
		} else {
			x := items[0]
			if x.Text != tt.itemText {
				t.Errorf("%v: item 0 Text = %q expected %q", tt.filename, x.Text, tt.itemText)
			}
		}
	}
}