diff options
Diffstat (limited to 'src/pkg/http/client_test.go')
-rw-r--r-- | src/pkg/http/client_test.go | 292 |
1 files changed, 292 insertions, 0 deletions
diff --git a/src/pkg/http/client_test.go b/src/pkg/http/client_test.go new file mode 100644 index 000000000..f22cce50b --- /dev/null +++ b/src/pkg/http/client_test.go @@ -0,0 +1,292 @@ +// Copyright 2009 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Tests for client.go + +package http_test + +import ( + "fmt" + . "http" + "http/httptest" + "io" + "io/ioutil" + "net" + "os" + "strconv" + "strings" + "testing" + "url" +) + +var robotsTxtHandler = HandlerFunc(func(w ResponseWriter, r *Request) { + w.Header().Set("Last-Modified", "sometime") + fmt.Fprintf(w, "User-agent: go\nDisallow: /something/") +}) + +func TestClient(t *testing.T) { + ts := httptest.NewServer(robotsTxtHandler) + defer ts.Close() + + r, err := Get(ts.URL) + var b []byte + if err == nil { + b, err = ioutil.ReadAll(r.Body) + r.Body.Close() + } + if err != nil { + t.Error(err) + } else if s := string(b); !strings.HasPrefix(s, "User-agent:") { + t.Errorf("Incorrect page body (did not begin with User-agent): %q", s) + } +} + +func TestClientHead(t *testing.T) { + ts := httptest.NewServer(robotsTxtHandler) + defer ts.Close() + + r, err := Head(ts.URL) + if err != nil { + t.Fatal(err) + } + if _, ok := r.Header["Last-Modified"]; !ok { + t.Error("Last-Modified header not found.") + } +} + +type recordingTransport struct { + req *Request +} + +func (t *recordingTransport) RoundTrip(req *Request) (resp *Response, err os.Error) { + t.req = req + return nil, os.NewError("dummy impl") +} + +func TestGetRequestFormat(t *testing.T) { + tr := &recordingTransport{} + client := &Client{Transport: tr} + url := "http://dummy.faketld/" + client.Get(url) // Note: doesn't hit network + if tr.req.Method != "GET" { + t.Errorf("expected method %q; got %q", "GET", tr.req.Method) + } + if tr.req.URL.String() != url { + t.Errorf("expected URL %q; got %q", url, tr.req.URL.String()) + } + if tr.req.Header == nil { + t.Errorf("expected non-nil request Header") + } +} + +func TestPostRequestFormat(t *testing.T) { + tr := &recordingTransport{} + client := &Client{Transport: tr} + + url := "http://dummy.faketld/" + json := `{"key":"value"}` + b := strings.NewReader(json) + client.Post(url, "application/json", b) // Note: doesn't hit network + + if tr.req.Method != "POST" { + t.Errorf("got method %q, want %q", tr.req.Method, "POST") + } + if tr.req.URL.String() != url { + t.Errorf("got URL %q, want %q", tr.req.URL.String(), url) + } + if tr.req.Header == nil { + t.Fatalf("expected non-nil request Header") + } + if tr.req.Close { + t.Error("got Close true, want false") + } + if g, e := tr.req.ContentLength, int64(len(json)); g != e { + t.Errorf("got ContentLength %d, want %d", g, e) + } +} + +func TestPostFormRequestFormat(t *testing.T) { + tr := &recordingTransport{} + client := &Client{Transport: tr} + + urlStr := "http://dummy.faketld/" + form := make(url.Values) + form.Set("foo", "bar") + form.Add("foo", "bar2") + form.Set("bar", "baz") + client.PostForm(urlStr, form) // Note: doesn't hit network + + if tr.req.Method != "POST" { + t.Errorf("got method %q, want %q", tr.req.Method, "POST") + } + if tr.req.URL.String() != urlStr { + t.Errorf("got URL %q, want %q", tr.req.URL.String(), urlStr) + } + if tr.req.Header == nil { + t.Fatalf("expected non-nil request Header") + } + if g, e := tr.req.Header.Get("Content-Type"), "application/x-www-form-urlencoded"; g != e { + t.Errorf("got Content-Type %q, want %q", g, e) + } + if tr.req.Close { + t.Error("got Close true, want false") + } + expectedBody := "foo=bar&foo=bar2&bar=baz" + if g, e := tr.req.ContentLength, int64(len(expectedBody)); g != e { + t.Errorf("got ContentLength %d, want %d", g, e) + } + bodyb, err := ioutil.ReadAll(tr.req.Body) + if err != nil { + t.Fatalf("ReadAll on req.Body: %v", err) + } + if g := string(bodyb); g != expectedBody { + t.Errorf("got body %q, want %q", g, expectedBody) + } +} + +func TestRedirects(t *testing.T) { + var ts *httptest.Server + ts = httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) { + n, _ := strconv.Atoi(r.FormValue("n")) + // Test Referer header. (7 is arbitrary position to test at) + if n == 7 { + if g, e := r.Referer(), ts.URL+"/?n=6"; e != g { + t.Errorf("on request ?n=7, expected referer of %q; got %q", e, g) + } + } + if n < 15 { + Redirect(w, r, fmt.Sprintf("/?n=%d", n+1), StatusFound) + return + } + fmt.Fprintf(w, "n=%d", n) + })) + defer ts.Close() + + c := &Client{} + _, err := c.Get(ts.URL) + if e, g := "Get /?n=10: stopped after 10 redirects", fmt.Sprintf("%v", err); e != g { + t.Errorf("with default client Get, expected error %q, got %q", e, g) + } + + // HEAD request should also have the ability to follow redirects. + _, err = c.Head(ts.URL) + if e, g := "Head /?n=10: stopped after 10 redirects", fmt.Sprintf("%v", err); e != g { + t.Errorf("with default client Head, expected error %q, got %q", e, g) + } + + // Do should also follow redirects. + greq, _ := NewRequest("GET", ts.URL, nil) + _, err = c.Do(greq) + if e, g := "Get /?n=10: stopped after 10 redirects", fmt.Sprintf("%v", err); e != g { + t.Errorf("with default client Do, expected error %q, got %q", e, g) + } + + var checkErr os.Error + var lastVia []*Request + c = &Client{CheckRedirect: func(_ *Request, via []*Request) os.Error { + lastVia = via + return checkErr + }} + res, err := c.Get(ts.URL) + finalUrl := res.Request.URL.String() + if e, g := "<nil>", fmt.Sprintf("%v", err); e != g { + t.Errorf("with custom client, expected error %q, got %q", e, g) + } + if !strings.HasSuffix(finalUrl, "/?n=15") { + t.Errorf("expected final url to end in /?n=15; got url %q", finalUrl) + } + if e, g := 15, len(lastVia); e != g { + t.Errorf("expected lastVia to have contained %d elements; got %d", e, g) + } + + checkErr = os.NewError("no redirects allowed") + res, err = c.Get(ts.URL) + finalUrl = res.Request.URL.String() + if e, g := "Get /?n=1: no redirects allowed", fmt.Sprintf("%v", err); e != g { + t.Errorf("with redirects forbidden, expected error %q, got %q", e, g) + } +} + +func TestStreamingGet(t *testing.T) { + say := make(chan string) + ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) { + w.(Flusher).Flush() + for str := range say { + w.Write([]byte(str)) + w.(Flusher).Flush() + } + })) + defer ts.Close() + + c := &Client{} + res, err := c.Get(ts.URL) + if err != nil { + t.Fatal(err) + } + var buf [10]byte + for _, str := range []string{"i", "am", "also", "known", "as", "comet"} { + say <- str + n, err := io.ReadFull(res.Body, buf[0:len(str)]) + if err != nil { + t.Fatalf("ReadFull on %q: %v", str, err) + } + if n != len(str) { + t.Fatalf("Receiving %q, only read %d bytes", str, n) + } + got := string(buf[0:n]) + if got != str { + t.Fatalf("Expected %q, got %q", str, got) + } + } + close(say) + _, err = io.ReadFull(res.Body, buf[0:1]) + if err != os.EOF { + t.Fatalf("at end expected EOF, got %v", err) + } +} + +type writeCountingConn struct { + net.Conn + count *int +} + +func (c *writeCountingConn) Write(p []byte) (int, os.Error) { + *c.count++ + return c.Conn.Write(p) +} + +// TestClientWrites verifies that client requests are buffered and we +// don't send a TCP packet per line of the http request + body. +func TestClientWrites(t *testing.T) { + ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) { + })) + defer ts.Close() + + writes := 0 + dialer := func(netz string, addr string) (net.Conn, os.Error) { + c, err := net.Dial(netz, addr) + if err == nil { + c = &writeCountingConn{c, &writes} + } + return c, err + } + c := &Client{Transport: &Transport{Dial: dialer}} + + _, err := c.Get(ts.URL) + if err != nil { + t.Fatal(err) + } + if writes != 1 { + t.Errorf("Get request did %d Write calls, want 1", writes) + } + + writes = 0 + _, err = c.PostForm(ts.URL, url.Values{"foo": {"bar"}}) + if err != nil { + t.Fatal(err) + } + if writes != 1 { + t.Errorf("Post request did %d Write calls, want 1", writes) + } +} |