initial commit

tests/integration/dm_creation_allowed_with_mutual_guild_test.go

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+/*
+ * Copyright (C) 2026 Fluxer Contributors
+ *
+ * This file is part of Fluxer.
+ *
+ * Fluxer 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.
+ *
+ * Fluxer 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 Fluxer. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package integration
+
+import (
+	"net/http"
+	"testing"
+)
+
+// TestDMCreationAllowedWithMutualGuild verifies that users sharing a guild can create DMs
+// with each other even without being friends.
+func TestDMCreationAllowedWithMutualGuild(t *testing.T) {
+	client := newTestClient(t)
+	user1 := createTestAccount(t, client)
+	user2 := createTestAccount(t, client)
+
+	guild := createGuild(t, client, user1.Token, "Test Community")
+
+	invite := createChannelInvite(t, client, user1.Token, parseSnowflake(t, guild.SystemChannel))
+	joinGuild(t, client, user2.Token, invite.Code)
+
+	resp, err := client.postJSONWithAuth("/users/@me/channels", map[string]string{"recipient_id": user2.UserID}, user1.Token)
+	if err != nil {
+		t.Fatalf("failed to create DM: %v", err)
+	}
+	defer resp.Body.Close()
+
+	assertStatus(t, resp, http.StatusOK)
+
+	var channel minimalChannelResponse
+	decodeJSONResponse(t, resp, &channel)
+	if channel.ID == "" {
+		t.Fatalf("expected channel ID in response")
+	}
+}