initial commit

tests/integration/attachment_upload_id_matching_reversed_metadata_test.go

@@ -0,0 +1,141 @@
+/*
+ * 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 (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"mime/multipart"
+	"net/http"
+	"testing"
+)
+
+// TestAttachmentUpload_IDMatching_ReversedMetadata tests that when metadata IDs
+// are reversed (id=1, id=0), they still match correctly with files[0] and files[1]
+func TestAttachmentUpload_IDMatching_ReversedMetadata(t *testing.T) {
+	client := newTestClient(t)
+	user := createTestAccount(t, client)
+	ensureSessionStarted(t, client, user.Token)
+
+	guild := createGuild(t, client, user.Token, "Reversed Metadata Test Guild")
+	channelID := parseSnowflake(t, guild.SystemChannel)
+
+	file1Data, err := fixturesFS.ReadFile("fixtures/yeah.png")
+	if err != nil {
+		t.Fatalf("failed to read fixture: %v", err)
+	}
+
+	file2Data, err := fixturesFS.ReadFile("fixtures/thisisfine.gif")
+	if err != nil {
+		t.Fatalf("failed to read fixture: %v", err)
+	}
+
+	var body bytes.Buffer
+	writer := multipart.NewWriter(&body)
+
+	payload := map[string]any{
+		"content": "Reversed metadata test",
+		"attachments": []map[string]any{
+			{"id": 1, "filename": "thisisfine.gif", "description": "Second file", "title": "GIF"},
+			{"id": 0, "filename": "yeah.png", "description": "First file", "title": "PNG"},
+		},
+	}
+	payloadJSON, err := json.Marshal(payload)
+	if err != nil {
+		t.Fatalf("failed to encode payload JSON: %v", err)
+	}
+
+	if err := writer.WriteField("payload_json", string(payloadJSON)); err != nil {
+		t.Fatalf("failed to write payload_json field: %v", err)
+	}
+
+	file1Writer, err := writer.CreateFormFile("files[0]", "yeah.png")
+	if err != nil {
+		t.Fatalf("failed to create files[0] field: %v", err)
+	}
+	if _, err := file1Writer.Write(file1Data); err != nil {
+		t.Fatalf("failed to write file1 data: %v", err)
+	}
+
+	file2Writer, err := writer.CreateFormFile("files[1]", "thisisfine.gif")
+	if err != nil {
+		t.Fatalf("failed to create files[1] field: %v", err)
+	}
+	if _, err := file2Writer.Write(file2Data); err != nil {
+		t.Fatalf("failed to write file2 data: %v", err)
+	}
+
+	if err := writer.Close(); err != nil {
+		t.Fatalf("failed to close multipart writer: %v", err)
+	}
+
+	req, err := http.NewRequest(
+		http.MethodPost,
+		fmt.Sprintf("%s/channels/%d/messages", client.baseURL, channelID),
+		&body,
+	)
+	if err != nil {
+		t.Fatalf("failed to create request: %v", err)
+	}
+	req.Header.Set("Content-Type", writer.FormDataContentType())
+	client.applyCommonHeaders(req)
+	req.Header.Set("Authorization", user.Token)
+
+	resp, err := client.httpClient.Do(req)
+	if err != nil {
+		t.Fatalf("failed to send request: %v", err)
+	}
+	defer resp.Body.Close()
+	assertStatus(t, resp, http.StatusOK)
+
+	var msgResp struct {
+		Attachments []struct {
+			Filename    string `json:"filename"`
+			Description string `json:"description"`
+			Title       string `json:"title"`
+		} `json:"attachments"`
+	}
+	decodeJSONResponse(t, resp, &msgResp)
+
+	if len(msgResp.Attachments) != 2 {
+		t.Fatalf("expected 2 attachments, got %d", len(msgResp.Attachments))
+	}
+
+	if msgResp.Attachments[0].Filename != "thisisfine.gif" {
+		t.Errorf("expected first filename 'thisisfine.gif' (first in metadata array), got %q", msgResp.Attachments[0].Filename)
+	}
+	if msgResp.Attachments[0].Description != "Second file" {
+		t.Errorf("expected first description 'Second file' (from metadata[0] with id=1), got %q", msgResp.Attachments[0].Description)
+	}
+	if msgResp.Attachments[0].Title != "GIF" {
+		t.Errorf("expected first title 'GIF' (from metadata[0] with id=1), got %q", msgResp.Attachments[0].Title)
+	}
+
+	if msgResp.Attachments[1].Filename != "yeah.png" {
+		t.Errorf("expected second filename 'yeah.png' (second in metadata array), got %q", msgResp.Attachments[1].Filename)
+	}
+	if msgResp.Attachments[1].Description != "First file" {
+		t.Errorf("expected second description 'First file' (from metadata[1] with id=0), got %q", msgResp.Attachments[1].Description)
+	}
+	if msgResp.Attachments[1].Title != "PNG" {
+		t.Errorf("expected second title 'PNG' (from metadata[1] with id=0), got %q", msgResp.Attachments[1].Title)
+	}
+}