initial commit

tests/integration/message_fetch_before_sparse_buckets_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 (
+	"fmt"
+	"net/http"
+	"testing"
+	"time"
+)
+
+func TestMessageFetchBeforeSparseBucketsBeyondIndexLimit(t *testing.T) {
+	client := newTestClient(t)
+	account := createTestAccount(t, client)
+
+	guild := createGuild(t, client, account.Token, "Before Sparse Buckets Test")
+	channelID := parseSnowflake(t, guild.SystemChannel)
+	clearChannelMessages(t, client, channelID, account.Token)
+
+	const bucketCount = 60
+	timestamps := make([]time.Time, bucketCount)
+
+	base := time.Now().Add(-time.Hour * 24 * 10 * (bucketCount - 1))
+	for i := 0; i < bucketCount; i++ {
+		timestamps[i] = base.Add(time.Hour * 24 * 10 * time.Duration(i))
+	}
+
+	seed := seedMessagesAtTimestamps(t, client, channelID, timestamps, account.UserID)
+
+	anchor := seed.Messages[bucketCount-1].MessageID // newest
+	const limit = 50
+
+	resp, err := client.getWithAuth(
+		fmt.Sprintf("/channels/%d/messages?before=%s&limit=%d", channelID, anchor, limit),
+		account.Token,
+	)
+	if err != nil {
+		t.Fatalf("fetch failed: %v", err)
+	}
+	assertStatus(t, resp, http.StatusOK)
+
+	var messages []struct{ ID string }
+	decodeJSONResponse(t, resp, &messages)
+
+	if len(messages) != limit {
+		t.Fatalf("expected %d messages, got %d", limit, len(messages))
+	}
+}