github.com/gocaveman/caveman@v0.0.0-20191211162744-0ddf99dbdf6e/webutil/htmlmin/htmlmin_test.go (about)

     1  package htmlmin
     2  
     3  import (
     4  	"bytes"
     5  	"fmt"
     6  	"io"
     7  	"log"
     8  	"net/http"
     9  	"net/http/httptest"
    10  	"net/http/httputil"
    11  	"path"
    12  	"testing"
    13  
    14  	"github.com/gocaveman/caveman/webutil"
    15  )
    16  
    17  func TestHTMLMin(t *testing.T) {
    18  
    19  	var hl webutil.HandlerList
    20  
    21  	hl = append(hl, webutil.NewContextCancelHandler())
    22  	hl = append(hl, NewHandler())
    23  	hl = append(hl, http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
    24  		if path.Ext(r.URL.Path) == ".html" {
    25  			w.Header().Set("content-type", "text/html")
    26  			fmt.Fprintf(w, "<!doctype html>\n\n<html>\n\n<body>\n\n<div>\n\nTesting      123</div></body></html>")
    27  		} else if path.Ext(r.URL.Path) == ".css" {
    28  			w.Header().Set("content-type", "text/css")
    29  			fmt.Fprintf(w, ".test1 { display: block\n\n}")
    30  		}
    31  	}))
    32  
    33  	r := httptest.NewRequest("GET", "/test1.html", nil)
    34  	tw := httptest.NewRecorder()
    35  	var w http.ResponseWriter = tw
    36  
    37  	w, r = hl.ServeHTTPChain(w, r)
    38  	w.(io.Closer).Close()
    39  
    40  	result := tw.Result()
    41  	b, _ := httputil.DumpResponse(result, true)
    42  	log.Printf("RESULT:\n%s", b)
    43  
    44  	if !bytes.Contains(b, []byte(`<!doctype html><html><body><div>Testing 123</div></body></html>`)) {
    45  		t.Fatalf("unexpected output: %s", b)
    46  	}
    47  
    48  	// write something not text/html and make sure all is well
    49  	r = httptest.NewRequest("GET", "/test1.css", nil)
    50  	tw = httptest.NewRecorder()
    51  	w = tw
    52  
    53  	w, r = hl.ServeHTTPChain(w, r)
    54  	w.(io.Closer).Close()
    55  
    56  	result = tw.Result()
    57  	b, _ = httputil.DumpResponse(result, true)
    58  	log.Printf("RESULT:\n%s", b)
    59  
    60  	if !bytes.Contains(b, []byte(".test1 { display: block\n\n}")) {
    61  		t.Fatalf("unexpected output: %s", b)
    62  	}
    63  
    64  }