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package main
import (
"fmt"
"io/ioutil"
"net/http"
"net/http/httptest"
"os"
"path/filepath"
"testing"
"git.jordan.im/crawl"
"git.jordan.im/crawl/warc"
)
func linkTo(w http.ResponseWriter, uri string) {
w.Header().Set("Content-Type", "text/html")
fmt.Fprintf(w, "<html><body><a href=\"%s\">link!</a></body></html>", uri)
}
func TestCrawl(t *testing.T) {
tmpdir, err := ioutil.TempDir("", "")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(tmpdir)
srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
switch r.URL.Path {
case "/":
linkTo(w, "/redir")
case "/b":
linkTo(w, "/")
case "/redir":
http.Redirect(w, r, "/b", http.StatusFound)
default:
http.NotFound(w, r)
}
}))
defer srv.Close()
seeds := crawl.MustParseURLs([]string{srv.URL + "/"})
scope := crawl.AND(
crawl.NewSchemeScope([]string{"http"}),
crawl.NewDepthScope(10),
crawl.NewSeedScope(seeds),
)
outf, err := os.Create(filepath.Join(tmpdir, "warc.gz"))
if err != nil {
t.Fatal(err)
}
w := warc.NewWriter(outf)
defer w.Close()
saver, err := newWarcSaveHandler(w)
if err != nil {
t.Fatal(err)
}
crawler, err := crawl.NewCrawler(
filepath.Join(tmpdir, "db"),
seeds,
scope,
crawl.FetcherFunc(fetch),
crawl.HandleRetries(crawl.FollowRedirects(crawl.FilterErrors(saver))),
)
if err != nil {
t.Fatal(err)
}
crawler.Run(1)
crawler.Close()
if n := saver.(*warcSaveHandler).numWritten; n != 3 {
t.Fatalf("warc handler wrote %d records, expected 3", n)
}
}
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