rss/rss_test.go
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package rss
import (
"encoding/json"
"errors"
"io/ioutil"
"net/http"
"os"
"path/filepath"
"reflect"
"testing"
)
func TestParseTitle(t *testing.T) {
tests := map[string]string{
"rss_0.92": "Dave Winer: Grateful Dead",
"rss_1.0": "Golem.de",
"rss_2.0": "RSS Title",
"rss_2.0-1": "Liftoff News",
"atom_1.0": "Titel des Weblogs",
"atom_1.0-1": "Golem.de",
}
for test, want := range tests {
name := filepath.Join("testdata", test)
data, err := ioutil.ReadFile(name)
if err != nil {
t.Fatalf("Reading %s: %v", name, err)
}
feed, err := Parse(data)
if err != nil {
t.Fatalf("Parsing %s: %v", name, err)
}
if feed.Title != want {
t.Errorf("%s: got %q, want %q", name, feed.Title, want)
}
}
}
func TestEnclosure(t *testing.T) {
tests := map[string]Enclosure{
"rss_1.0": Enclosure{URL: "http://foo.bar/baz.mp3", Type: "audio/mpeg", Length: 65535},
"rss_2.0": Enclosure{URL: "http://example.com/file.mp3", Type: "audio/mpeg", Length: 65535},
"rss_2.0-1": Enclosure{URL: "http://gdb.voanews.com/6C49CA6D-C18D-414D-8A51-2B7042A81010_cx0_cy29_cw0_w800_h450.jpg", Type: "image/jpeg", Length: 3123},
"atom_1.0": Enclosure{URL: "http://example.org/audio.mp3", Type: "audio/mpeg", Length: 1234},
}
for test, want := range tests {
name := filepath.Join("testdata", test+"_enclosure")
data, err := ioutil.ReadFile(name)
if err != nil {
t.Fatalf("Reading %s: %v", name, err)
}
feed, err := Parse(data)
if err != nil {
t.Fatalf("Parsing %s: %v", name, err)
}
enclosureFound := false
for _, item := range feed.Items {
for _, enc := range item.Enclosures {
enclosureFound = true
if !reflect.DeepEqual(*enc, want) {
t.Errorf("%s: got %#v, want %#v", name, *enc, want)
}
}
}
if !enclosureFound {
t.Errorf("No enclosures parsed in %s", name)
}
}
}
func MakeTestdataFetchFunc(file string) FetchFunc {
return func(url string) (resp *http.Response, err error) {
// Create mock http.Response
resp = new(http.Response)
resp.Body, err = os.Open("testdata/" + file)
return resp, err
}
}
func TestFeedUnmarshalUpdate(t *testing.T) {
fetch1 := MakeTestdataFetchFunc("rssupdate-1")
fetch2 := MakeTestdataFetchFunc("rssupdate-2")
feed, err := FetchByFunc(fetch1, "http://localhost/dummyrss")
if err != nil {
t.Fatalf("Failed fetching testdata 'rssupdate-2': %v", err)
}
if 1 != feed.Unread {
t.Errorf("Expected one unread item initially, got %v", feed.Unread)
}
jsonBlob, err := json.Marshal(feed)
if err != nil {
t.Fatalf("Failed to marshal Feed %+v\n", feed)
}
var unmarshalledFeed Feed
err = json.Unmarshal(jsonBlob, &unmarshalledFeed)
var defaultFetchFuncCalled = 0
DefaultFetchFunc = func(url string) (resp *http.Response, err error) {
defaultFetchFuncCalled++
return nil, errors.New("No network in test")
}
err = unmarshalledFeed.Update()
if err != nil {
t.Logf("Expected failure updating via http in test: %v", err)
}
if defaultFetchFuncCalled < 1 {
t.Error("DefaultFetchFunc was not called during Update()")
}
err = unmarshalledFeed.UpdateByFunc(fetch2)
if err != nil {
t.Fatalf("Failed updating the feed from testdata 'rssupdate-2': %v", err)
}
if 2 != unmarshalledFeed.Unread {
t.Errorf("Expected two unread items after update, got %v", unmarshalledFeed.Unread)
}
}
func TestItemGUIDs(t *testing.T) {
feed1, err := FetchByFunc(MakeTestdataFetchFunc("rss_2.0"), "http://localhost/dummyfeed1")
if err != nil {
t.Fatalf("Failed fetching testdata 'rss_2.0': %v", err)
}
if len(feed1.Items) != 2 {
t.Errorf("Expected one item in feed 'rss_2.0', got %v", len(feed1.Items))
}
feed2, err := FetchByFunc(MakeTestdataFetchFunc("rssupdate-1"), "http://localhost/dummyfeed2")
if err != nil {
t.Fatalf("Failed fetching testdata 'rssupdate-1': %v", err)
}
if len(feed2.Items) != 1 {
t.Errorf("Expected one item in feed 'rssupdate' after step 1, got %v", len(feed2.Items))
}
err = feed2.UpdateByFunc(MakeTestdataFetchFunc("rssupdate-2"))
if err != nil {
t.Fatalf("Failed fetching testdata 'rssupdate-2': %v", err)
}
// rssupdate-2 contains two items, one new item and one old item from rssupdate-1
if len(feed2.Items) != 2 {
t.Errorf("Expected two items in feed 'rssupdate' after step 2, got %v", len(feed2.Items))
}
}