Move capabilities handling to own file and refactor http client pool.

http_client_pool_test.go

@@ -0,0 +1,76 @@
+/**
+ * Standalone signaling server for the Nextcloud Spreed app.
+ * Copyright (C) 2017 struktur AG
+ *
+ * @author Joachim Bauch <bauch@struktur.de>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package signaling
+
+import (
+	"context"
+	"net/url"
+	"testing"
+	"time"
+)
+
+func TestHttpClientPool(t *testing.T) {
+	if _, err := NewHttpClientPool(0, false); err == nil {
+		t.Error("should not be possible to create empty pool")
+	}
+
+	pool, err := NewHttpClientPool(1, false)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	u, err := url.Parse("http://localhost/foo/bar")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	ctx := context.Background()
+	if _, _, err := pool.Get(ctx, u); err != nil {
+		t.Fatal(err)
+	}
+
+	ctx2, cancel := context.WithTimeout(ctx, 10*time.Millisecond)
+	defer cancel()
+	if _, _, err := pool.Get(ctx2, u); err == nil {
+		t.Error("fetching from empty pool should have timed out")
+	} else if err != context.DeadlineExceeded {
+		t.Errorf("fetching from empty pool should have timed out, got %s", err)
+	}
+
+	// Pools are separated by hostname, so can get client for different host.
+	u2, err := url.Parse("http://local.host/foo/bar")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if _, _, err := pool.Get(ctx, u2); err != nil {
+		t.Fatal(err)
+	}
+
+	ctx3, cancel2 := context.WithTimeout(ctx, 10*time.Millisecond)
+	defer cancel2()
+	if _, _, err := pool.Get(ctx3, u2); err == nil {
+		t.Error("fetching from empty pool should have timed out")
+	} else if err != context.DeadlineExceeded {
+		t.Errorf("fetching from empty pool should have timed out, got %s", err)
+	}
+}