parse http requests to image requests

proxy/proxy_test.go

@@ -0,0 +1,101 @@
+package proxy
+
+import (
+	"net/http"
+	"testing"
+)
+
+func TestNewRequest(t *testing.T) {
+	tests := []struct {
+		URL         string
+		RemoteURL   string
+		Width       int
+		Height      int
+		ExpectError bool
+	}{
+		// invalid URLs
+		{
+			"http://localhost/", "", 0, 0, true,
+		},
+		{
+			"http://localhost/1/", "", 0, 0, true,
+		},
+		{
+			"http://localhost//example.com/foo", "", 0, 0, true,
+		},
+		{
+			"http://localhost//ftp://example.com/foo", "", 0, 0, true,
+		},
+		{
+			"http://localhost/s/http://example.com/", "", 0, 0, true,
+		},
+		{
+			"http://localhost/1xs/http://example.com/", "", 0, 0, true,
+		},
+
+		// valid URLs
+		{
+			"http://localhost//http://example.com/foo",
+			"http://example.com/foo", 0, 0, false,
+		},
+		{
+			"http://localhost//https://example.com/foo",
+			"https://example.com/foo", 0, 0, false,
+		},
+		{
+			"http://localhost//http://example.com/foo?bar",
+			"http://example.com/foo?bar", 0, 0, false,
+		},
+
+		// size variations
+		{
+			"http://localhost/x/http://example.com/",
+			"http://example.com/", 0, 0, false,
+		},
+		{
+			"http://localhost/0/http://example.com/",
+			"http://example.com/", 0, 0, false,
+		},
+		{
+			"http://localhost/1x/http://example.com/",
+			"http://example.com/", 1, 0, false,
+		},
+		{
+			"http://localhost/x1/http://example.com/",
+			"http://example.com/", 0, 1, false,
+		},
+		{
+			"http://localhost/1x2/http://example.com/",
+			"http://example.com/", 1, 2, false,
+		},
+	}
+
+	for i, tt := range tests {
+		req, err := http.NewRequest("GET", tt.URL, nil)
+		if err != nil {
+			t.Errorf("%d. Error parsing request: %v", i, err)
+			continue
+		}
+
+		r, err := NewRequest(req)
+		if tt.ExpectError {
+			if err == nil {
+				t.Errorf("%d. Expected parsing error", i)
+			}
+			continue
+		} else if err != nil {
+			t.Errorf("%d. Error parsing request: %v", i, err)
+			continue
+		}
+
+		if got := r.URL.String(); tt.RemoteURL != got {
+			t.Errorf("%d. Request URL = %v, want %v", i, got, tt.RemoteURL)
+		}
+		if tt.Height != r.Height {
+			t.Errorf("%d. Request Height = %v, want %v", i, r.Height, tt.Height)
+		}
+		if tt.Width != r.Width {
+			t.Errorf("%d. Request Width = %v, want %v", i, r.Width, tt.Width)
+		}
+	}
+}