1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
|
package server
import (
"io"
"log/slog"
"net/http"
"net/http/httptest"
"os"
"strings"
"testing"
)
// TestMain silences slog so the request logs from logRequests don't
// clutter test output.
func TestMain(m *testing.M) {
slog.SetDefault(slog.New(slog.NewTextHandler(io.Discard, nil)))
os.Exit(m.Run())
}
func newTestServer(t *testing.T) *Server {
t.Helper()
return New(&Config{Name: "test"})
}
func TestRoutes(t *testing.T) {
s := newTestServer(t)
tests := []struct {
name string
method string
path string
want int
}{
{"index", http.MethodGet, "/", http.StatusOK},
{"index style", http.MethodGet, "/css/style.css", http.StatusOK},
{"unknown path", http.MethodGet, "/nonsense", http.StatusNotFound},
{"wrong method", http.MethodPost, "/", http.StatusMethodNotAllowed},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
rec := httptest.NewRecorder()
s.mux.ServeHTTP(rec, httptest.NewRequest(tt.method, tt.path, nil))
if rec.Code != tt.want {
t.Errorf("%s %s: got status %d, want %d", tt.method, tt.path, rec.Code, tt.want)
}
})
}
}
func TestIndexRendersTemplate(t *testing.T) {
s := New(&Config{Name: "testname123"})
rec := httptest.NewRecorder()
s.mux.ServeHTTP(rec, httptest.NewRequest(http.MethodGet, "/", nil))
body := rec.Body.String()
if !strings.Contains(body, "testname123") {
t.Errorf("index body doesn't contain server name, got:\n%s", body)
}
if ct := rec.Header().Get("Content-Type"); !strings.HasPrefix(ct, "text/html") {
t.Errorf("got Content-Type %q, want text/html", ct)
}
}
func TestStatusRecorder(t *testing.T) {
t.Run("records and forwards WriteHeader", func(t *testing.T) {
rec := httptest.NewRecorder()
sr := &statusRecorder{ResponseWriter: rec, status: http.StatusOK}
sr.WriteHeader(http.StatusTeapot)
if sr.status != http.StatusTeapot {
t.Errorf("recorder kept status %d, want %d", sr.status, http.StatusTeapot)
}
if rec.Code != http.StatusTeapot {
t.Errorf("underlying writer got status %d, want %d", rec.Code, http.StatusTeapot)
}
})
t.Run("defaults to 200 when handler never calls WriteHeader", func(t *testing.T) {
rec := httptest.NewRecorder()
sr := &statusRecorder{ResponseWriter: rec, status: http.StatusOK}
if _, err := sr.Write([]byte("hello")); err != nil {
t.Fatalf("Write: %v", err)
}
if sr.status != http.StatusOK {
t.Errorf("recorder kept status %d, want %d", sr.status, http.StatusOK)
}
})
}
// TestLogRequests checks the middleware passes requests through untouched,
// on both the Write path (200) and the WriteHeader path (404).
func TestLogRequests(t *testing.T) {
s := newTestServer(t)
handler := logRequests(s.mux)
tests := []struct {
name string
path string
want int
}{
{"success passes through", "/", http.StatusOK},
{"not found passes through", "/nonsense", http.StatusNotFound},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
rec := httptest.NewRecorder()
handler.ServeHTTP(rec, httptest.NewRequest(http.MethodGet, tt.path, nil))
if rec.Code != tt.want {
t.Errorf("got status %d, want %d", rec.Code, tt.want)
}
})
}
}
|
