Files view: change details with before/after images (v2.4.0)
- the timeline's Δ glyph became a **Details** button, and it now appears on Update rows too (not just card-side changes); EN "Changed (card)" -> "Changed on card", RU "Изменено (картой)" -> "Изменено картой" - the details modal shows the affected unit — the whole file, or the single record that changed — **before and after** the change as hex views (16 bytes per row, ASCII column, never-observed bytes as `--`), with the bytes that changed and the bytes the operation *first observed* highlighted in two different colours, plus the changed/new byte counts and the APDU reference; the old before/after byte table is gone - `GET /api/sessions/<id>/files/image?key=…&change=…` returns those two views (segments with offsets) plus the change's metadata; the images are reconstructed from the current image by undoing the later changes (`FileTracker.change_images`), so nothing is duplicated per event — every value change is an event, hence the values are exact (a byte only first observed later can appear as known in both views) - tracker: change events carry `observed_ranges` (bytes that were unknown before the operation) next to `ranges`; an update that only observes new bytes now records an event (so it can be inspected); record-file ranges are in-record byte offsets (the record number stays in its own field), which the previous "record number as position" could not express for a hex highlight - tests: change-images reconstruction (before/after per event, later changes undone, records isolated, observation-only events, unknown gaps), the image endpoint (200/404/400), and Node tests for the hex-image helper (highlight classes, unknown gaps, ASCII, row limit) and the modal rendering - v2.4.0; SW cache simtrace-analyser-v65
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@@ -188,13 +188,25 @@ body { font: 14px/1.5 system-ui, sans-serif; background: var(--bg); color: var(-
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.file-op-read { color: var(--text-muted); }
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.file-op-update { color: var(--accent); }
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.file-op-card { color: var(--warn); }
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.file-op .file-op-diff { margin-left: auto; background: none; border: none; color: var(--warn); cursor: pointer; font-size: 12px; padding: 0 2px; flex: 0 0 auto; }
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.file-op .file-op-diff:hover { color: var(--accent); }
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.file-diff-modal { max-width: 640px; }
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.file-diff-body { max-height: 50vh; overflow-y: auto; margin-bottom: 16px; }
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.file-diff-body table { font-size: 12px; }
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.file-diff-body td { padding: 2px 8px 2px 0; vertical-align: top; }
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.file-diff-body .file-diff-hex { font-family: ui-monospace, monospace; word-break: break-all; }
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.file-op .file-op-diff { margin-left: auto; background: none; border: none; color: var(--accent); cursor: pointer; font-size: 12px; padding: 0 2px; flex: 0 0 auto; text-decoration: underline; }
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.file-op .file-op-diff:hover { color: var(--warn); }
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.file-diff-modal { max-width: 760px; }
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.file-diff-body { max-height: 60vh; overflow-y: auto; margin-bottom: 16px; }
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.hex-legend { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--text-muted); margin-bottom: 6px; flex-wrap: wrap; }
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.hex-summary { font-size: 12px; color: var(--text-muted); margin-bottom: 10px; }
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.hex-pair { display: flex; gap: 16px; flex-wrap: wrap; }
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.hex-pair > div { flex: 1 1 320px; min-width: 0; }
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.hex-pair h4 { font-size: 12px; text-transform: uppercase; letter-spacing: 1px; color: var(--accent); margin-bottom: 4px; }
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.hex-view { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; line-height: 1.45; white-space: pre; overflow-x: auto; }
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.hex-row { display: flex; align-items: baseline; }
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.hex-addr { color: var(--text-muted); margin-right: 8px; }
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.hex-cell { padding: 0 1px; border-radius: 2px; }
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.hex-cell.hex-changed { background: var(--warn); color: #1a1a1a; font-weight: 600; }
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.hex-cell.hex-new { background: var(--accent); color: #fff; font-weight: 600; }
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.hex-cell.hex-unknown { color: var(--text-muted); }
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.hex-ascii { color: var(--text-muted); margin-left: 8px; }
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.hex-note { font-size: 12px; color: var(--text-muted); margin-top: 6px; }
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.hex-error { font-size: 12px; color: var(--error); }
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.map-item { padding: 3px 8px; cursor: pointer; border-radius: 4px; font-size: 13px; color: var(--text); word-break: break-word; }
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.map-item:hover { background: var(--bg-input); }
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.map-files-toggle { color: var(--accent); cursor: pointer; }
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@@ -438,7 +450,7 @@ body { font: 14px/1.5 system-ui, sans-serif; background: var(--bg); color: var(-
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<!-- Card-side change detail (Files view) -->
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<div class="modal-overlay" id="file-diff-modal">
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<div class="modal file-diff-modal">
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<h3 data-l10n="Card-side change">Card-side change</h3>
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<h3 data-l10n="Change details">Change details</h3>
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<p id="file-diff-sub"></p>
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<div class="file-diff-body" id="file-diff-body"></div>
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<div class="modal-buttons">
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@@ -499,6 +511,7 @@ const STATE = {
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sideView: 'map',
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filesData: null,
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filesSessionId: null,
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filesImages: {},
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pendingDeleteId: null,
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serverAvailable: false,
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serverName: '',
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@@ -1193,6 +1206,10 @@ const API = {
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stopCapture() { return this._fetch('POST', '/api/capture/stop'); },
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getLatest(after) { return this._fetch('GET', `/api/capture/latest?after=${after}`); },
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getSessionFiles(id) { return this._fetch('GET', `/api/sessions/${id}/files`); },
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getSessionFileImage(id, key, change) {
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return this._fetch('GET', `/api/sessions/${id}/files/image?key=` +
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encodeURIComponent(key) + `&change=${change}`);
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},
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searchMessages(sessionId, query) { return this._fetch('GET', `/api/apdu/search?session_id=${sessionId}&q=${encodeURIComponent(query)}`); },
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filterMessages(sessionId, type) { return this._fetch('GET', `/api/apdu/filter?session_id=${sessionId}&type=${type}`); },
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async _importPost(params, body, contentType) {
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@@ -2087,7 +2104,7 @@ function fileOpClass(kind) {
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function fileOpVerb(kind) {
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if (kind === 'update') return t('Update');
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if (kind === 'card_change') return t('Changed (card)');
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if (kind === 'card_change') return t('Changed on card');
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return t('Read');
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}
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@@ -2096,21 +2113,59 @@ function fileOpLabel(op) {
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return `${fileOpVerb(op.kind)} ${name}`;
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}
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// Split a change's concatenated before/after hex into per-range rows.
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function fileDiffRows(change) {
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const rows = [];
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let at = 0;
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for (const [pos, len] of (change.ranges || [])) {
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const take = len * 2;
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rows.push({
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pos: pos,
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len: len,
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before: (change.before_hex || '').slice(at, at + take),
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after: (change.after_hex || '').slice(at, at + take),
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});
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at += take;
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// Hex view of an image: 16 bytes per row across the observed segments, with
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// gaps drawn as unknown cells. *ranges* (bytes that changed) and *observed*
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// (bytes first observed by this change) mark the cells.
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function hexImageRows(segments, ranges, observed, limit) {
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const maxBytes = limit || 2048;
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const bytes = new Map();
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let end = 0;
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for (const seg of segments || []) {
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const hex = (seg.hex || '').toLowerCase();
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for (let i = 0; i < hex.length / 2; i++) {
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bytes.set(seg.offset + i, hex.substr(i * 2, 2));
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}
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end = Math.max(end, seg.offset + Math.floor(hex.length / 2));
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}
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return rows;
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const covered = (list, pos) => (list || []).some(([p, n]) => pos >= p && pos < p + n);
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const rows = [];
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let truncated = false;
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for (let off = 0; off < end; off += 16) {
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if (off >= maxBytes) {
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truncated = true;
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break;
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}
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const cells = [];
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let ascii = '';
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for (let i = 0; i < 16; i++) {
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const pos = off + i;
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const hex = bytes.get(pos);
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if (hex === undefined) {
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cells.push({hex: '--', cls: 'hex-unknown'});
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ascii += ' ';
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continue;
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}
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const cls = covered(ranges, pos) ? 'hex-changed'
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: covered(observed, pos) ? 'hex-new' : '';
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const value = parseInt(hex, 16);
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cells.push({hex: hex, cls: cls});
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ascii += (value >= 0x20 && value < 0x7f) ? String.fromCharCode(value) : '.';
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}
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rows.push({offset: off, cells: cells, ascii: ascii});
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}
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return {rows: rows, truncated: truncated, end: end};
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}
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function hexImageHtml(image, key) {
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const segments = image[key] || [];
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const view = hexImageRows(segments, image.ranges, image.observed_ranges);
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const body = view.rows.map(r =>
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`<div class="hex-row"><span class="hex-addr">${r.offset.toString(16).toUpperCase().padStart(4, '0')}</span>` +
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r.cells.map(c => `<span class="hex-cell ${c.cls}">${c.hex}</span>`).join('') +
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`<span class="hex-ascii">${escapeHtml(r.ascii)}</span></div>`
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).join('') || `<div class="hex-row hex-unknown">${t('never observed')}</div>`;
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return `<div class="hex-view">${body}</div>` +
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(view.truncated ? `<div class="hex-note">${t('Showing the first {n} bytes of the image').replace('{n}', 2048)}</div>` : '');
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}
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async function renderFileView() {
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@@ -2149,8 +2204,8 @@ async function renderFileView() {
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return;
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}
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view.innerHTML = timeline.map(op => {
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const diff = (op.kind === 'card_change' && op.change_ref)
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? `<button class="file-op-diff" data-diff="${escapeHtml(op.change_ref.file)}|${op.change_ref.idx}" title="${t('Show the change')}">Δ</button>`
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const diff = op.change_ref
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? `<button class="file-op-diff" data-diff="${escapeHtml(op.change_ref.file)}|${op.change_ref.idx}" title="${t('Show the change')}">${t('Details')}</button>`
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: '';
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return `<div class="file-op ${fileOpClass(op.kind)}" data-idx="${op.index}">
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<span>${escapeHtml(fileOpLabel(op))}</span>${diff}
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@@ -2158,20 +2213,56 @@ async function renderFileView() {
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}).join('');
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}
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function showFileDiff(fileKey, idx) {
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async function showFileDiff(fileKey, idx) {
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const data = STATE.filesData;
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const entry = data && data.files ? data.files[fileKey] : null;
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const change = entry && entry.changes ? entry.changes[idx] : null;
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if (!change) return;
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const rows = fileDiffRows(change);
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el('file-diff-sub').textContent = `${entry.name} — ${change.op}`;
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el('file-diff-body').innerHTML = rows.map(r => `<table>
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<tr><td>${change.record != null ? t('Record') : t('Offset')}:</td><td>${escapeHtml(change.record != null ? String(r.pos) : '0x' + r.pos.toString(16).toUpperCase())} (${r.len} B)</td></tr>
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<tr><td>${t('Before')}:</td><td class="file-diff-hex">${escapeHtml(r.before.toUpperCase())}</td></tr>
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<tr><td>${t('After')}:</td><td class="file-diff-hex">${escapeHtml(r.after.toUpperCase())}</td></tr>
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<tr><td colspan="2" style="height:6px"></td></tr>
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</table>`).join('');
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if (!entry) return;
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el('file-diff-sub').textContent = entry.name;
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el('file-diff-body').innerHTML = `<p class="hex-note">${t('Loading…')}</p>`;
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el('file-diff-modal').classList.add('show');
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const cacheKey = `${STATE.sessionViewId}|${fileKey}|${idx}`;
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let image = STATE.filesImages[cacheKey];
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try {
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if (!image) {
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image = await API.getSessionFileImage(STATE.sessionViewId, fileKey, idx);
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if (!image || !image.before) {
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throw new Error((image && image.error) || t('Failed to load files'));
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}
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STATE.filesImages[cacheKey] = image;
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}
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} catch (e) {
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el('file-diff-body').innerHTML =
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`<p class="hex-error">${t('Failed to load files')}: ${escapeHtml((e && e.message) || '')}</p>`;
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return;
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}
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renderFileDiff(image);
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}
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function renderFileDiff(image) {
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const changed = (image.ranges || []).reduce((n, r) => n + r[1], 0);
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const fresh = (image.observed_ranges || []).reduce((n, r) => n + r[1], 0);
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const meta = [];
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if (image.op) meta.push(image.op);
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if (image.record !== null && image.record !== undefined) {
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meta.push(`${t('Record')} ${image.record}` +
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(image.n_records ? ` / ${image.n_records}` : ''));
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}
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if (image.index !== null && image.index !== undefined) meta.push(`#${image.index}`);
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if (image.elapsed !== null && image.elapsed !== undefined) meta.push(fmt_elapsed(image.elapsed));
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el('file-diff-sub').textContent = `${image.name || ''} — ${meta.join(' · ')}`;
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el('file-diff-body').innerHTML =
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`<div class="hex-legend">
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<span class="hex-cell hex-changed">aa</span> ${t('changed')}
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<span class="hex-cell hex-new">aa</span> ${t('newly observed')}
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<span class="hex-cell hex-unknown">--</span> ${t('never observed')}
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</div>
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<div class="hex-summary">${t('{c} bytes changed, {n} bytes newly observed')
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.replace('{c}', changed).replace('{n}', fresh)}</div>
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<div class="hex-pair">
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<div><h4>${t('Before')}</h4>${hexImageHtml(image, 'before')}</div>
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<div><h4>${t('After')}</h4>${hexImageHtml(image, 'after')}</div>
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</div>` +
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(image.image_truncated ? `<p class="hex-note">${t('The image is frozen (size cap reached) — later changes are not tracked.')}</p>` : '');
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}
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// Load the pages up to *idx* (the message list is fetched in pages) and focus
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@@ -2810,6 +2901,7 @@ async function loadSession(id) {
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STATE.sessionViewId = id;
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STATE.filesData = null;
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STATE.filesSessionId = null;
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STATE.filesImages = {};
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STATE.sessionStarted = data.session.started;
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STATE.captureActive = false;
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STATE.currentSessionName = data.session.name || t('Session #') + id;
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@@ -3072,7 +3164,7 @@ function onFilterChange() {
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}
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// ──────────────────── Versioning ────────────────────
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const PWA_VERSION = '2.3.1';
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const PWA_VERSION = '2.4.0';
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const MIN_SERVER_VERSION = '2.3.0';
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function parseVersion(v) {
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@@ -3118,8 +3210,15 @@ const LANG_RU = {
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'Files': 'Файлы',
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'Read': 'Чтение',
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'Update': 'Запись',
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'Changed (card)': 'Изменено (картой)',
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'Card-side change': 'Изменение на карте',
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'Changed on card': 'Изменено картой',
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'Change details': 'Подробности изменения',
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'Details': 'Подробнее',
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'changed': 'изменено',
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'newly observed': 'впервые наблюдается',
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'never observed': 'не наблюдалось',
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'{c} bytes changed, {n} bytes newly observed': 'Изменено байт: {c}; впервые наблюдается байт: {n}',
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'Showing the first {n} bytes of the image': 'Показаны первые {n} байт образа',
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'The image is frozen (size cap reached) — later changes are not tracked.': 'Образ заморожен (достигнут предел размера) — последующие изменения не отслеживаются.',
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'Close': 'Закрыть',
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'Offset': 'Смещение',
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'Record': 'Запись №',
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+1
-1
@@ -1,4 +1,4 @@
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const CACHE = 'simtrace-analyser-v64';
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const CACHE = 'simtrace-analyser-v65';
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const PRECACHE = [
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'index.html',
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@@ -282,7 +282,8 @@ eval(
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extractFunc(src, 'fileOpClass') + '\n' +
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extractFunc(src, 'fileOpVerb') + '\n' +
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extractFunc(src, 'fileOpLabel') + '\n' +
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extractFunc(src, 'fileDiffRows')
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extractFunc(src, 'escapeHtml') + '\n' +
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extractFunc(src, 'hexImageRows')
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);
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test('Files view: operation kinds map to classes and verbs', () => {
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@@ -291,24 +292,36 @@ test('Files view: operation kinds map to classes and verbs', () => {
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assert.equal(fileOpClass('card_change'), 'file-op-card');
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assert.equal(fileOpVerb('read'), 'Read');
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assert.equal(fileOpVerb('update'), 'Update');
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assert.equal(fileOpVerb('card_change'), 'Changed (card)');
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assert.equal(fileOpVerb('card_change'), 'Changed on card');
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assert.equal(fileOpLabel({kind: 'read', file: {name: 'EF_ICCID'}}), 'Read EF_ICCID');
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assert.equal(fileOpLabel({kind: 'card_change', file: {name: 'EF_LOCI'}}),
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'Changed (card) EF_LOCI');
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'Changed on card EF_LOCI');
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assert.equal(fileOpLabel({kind: 'read', file: null}), 'Read ?');
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});
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test('Files view: the diff rows slice the concatenated hex', () => {
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const change = {
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ranges: [[8, 2], [16, 1]],
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before_hex: '95f9aa',
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after_hex: '000001',
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};
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assert.deepEqual(fileDiffRows(change), [
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{pos: 8, len: 2, before: '95f9', after: '0000'},
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{pos: 16, len: 1, before: 'aa', after: '01'},
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]);
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assert.deepEqual(fileDiffRows({ranges: [], before_hex: '', after_hex: ''}), []);
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test('Files view: the hex image rows mark changed, new and unknown bytes', () => {
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// 'ABCD' then a gap, then 'ef' newly observed.
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const view = hexImageRows(
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[{offset: 0, hex: '41424344'}, {offset: 8, hex: '6566'}],
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[[2, 1]], // changed
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[[8, 2]]); // newly observed
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assert.equal(view.truncated, false);
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assert.equal(view.end, 10);
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assert.equal(view.rows.length, 1);
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const cells = view.rows[0].cells;
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assert.deepEqual(cells[0], {hex: '41', cls: ''});
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assert.deepEqual(cells[2], {hex: '43', cls: 'hex-changed'});
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assert.deepEqual(cells[4], {hex: '--', cls: 'hex-unknown'}); // the gap
|
||||
assert.deepEqual(cells[8], {hex: '65', cls: 'hex-new'});
|
||||
// ASCII column: printable bytes stay, gaps and the unobserved tail are blank.
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||||
assert.equal(view.rows[0].ascii, 'ABCD ef ');
|
||||
});
|
||||
|
||||
test('Files view: the hex image respects the row limit', () => {
|
||||
const view = hexImageRows([{offset: 0, hex: 'aa'.repeat(64)}], [], [], 32);
|
||||
assert.equal(view.truncated, true);
|
||||
assert.equal(view.rows.length, 2);
|
||||
assert.equal(view.end, 64);
|
||||
});
|
||||
|
||||
test('Files view: side-panel dropdown and the timeline are wired', () => {
|
||||
@@ -321,6 +334,10 @@ test('Files view: side-panel dropdown and the timeline are wired', () => {
|
||||
assert.match(src, /\$on\('side-view-select', 'change'/);
|
||||
assert.match(src, /\$on\('file-view', 'click'/);
|
||||
assert.match(src, /API\.getSessionFiles\(sid\)/);
|
||||
assert.match(src, />\$\{t\('Details'\)\}<\/button>/);
|
||||
assert.match(src, /API\.getSessionFileImage\(STATE\.sessionViewId, fileKey, idx\)/);
|
||||
assert.match(src, /getSessionFileImage\(id, key, change\)/);
|
||||
assert.match(src, /files\/image\?key=/);
|
||||
assert.match(src, /if \(row\) jumpToMessage\(Number\(row\.dataset\.idx\)\);/);
|
||||
assert.match(src, /getSessionFiles\(id\)\s*\{ return this\._fetch\('GET', `\/api\/sessions\/\$\{id\}\/files`\); \}/);
|
||||
});
|
||||
@@ -331,8 +348,12 @@ test('Files view: strings carry Russian translations', () => {
|
||||
for (const m of lang.matchAll(/'((?:[^'\\]|\\.)*)'\s*:/g)) {
|
||||
keys.add(m[1].replace(/\\(['\\])/g, '$1'));
|
||||
}
|
||||
for (const s of ['Files', 'Read', 'Update', 'Changed (card)', 'Card-side change',
|
||||
'Close', 'Offset', 'Record', 'Before', 'After', 'Show the change',
|
||||
for (const s of ['Files', 'Read', 'Update', 'Changed on card', 'Change details',
|
||||
'Details', 'Close', 'Offset', 'Record', 'Before', 'After', 'Show the change',
|
||||
'changed', 'newly observed', 'never observed',
|
||||
'{c} bytes changed, {n} bytes newly observed',
|
||||
'Showing the first {n} bytes of the image',
|
||||
'The image is frozen (size cap reached) — later changes are not tracked.',
|
||||
'No file operations recorded', 'Failed to load files', 'Loading…']) {
|
||||
assert.ok(keys.has(s), 'no LANG_RU entry for: ' + s);
|
||||
}
|
||||
@@ -431,3 +452,49 @@ test('Files view: a response for a session left meanwhile is ignored', async ()
|
||||
assert.equal(STATE.filesData, null);
|
||||
assert.equal(STATE.filesSessionId, null);
|
||||
});
|
||||
|
||||
// ── Change-details modal rendering (stubbed DOM) ───────────────────────
|
||||
eval(
|
||||
'function el(id) { return dlgEl(id); }\n' +
|
||||
extractFunc(src, 'fmt_elapsed') + '\n' +
|
||||
extractFunc(src, 'escapeHtml') + '\n' +
|
||||
extractFunc(src, 'hexImageRows') + '\n' +
|
||||
extractFunc(src, 'hexImageHtml') + '\n' +
|
||||
extractFunc(src, 'renderFileDiff')
|
||||
);
|
||||
|
||||
test('Change details modal: header, summary, legend and both views', () => {
|
||||
renderFileDiff({
|
||||
name: 'EF_ICCID',
|
||||
op: 'READ BINARY',
|
||||
record: null,
|
||||
n_records: null,
|
||||
index: 12,
|
||||
elapsed: 3.25,
|
||||
ranges: [[8, 2]],
|
||||
observed_ranges: [[0, 4]],
|
||||
before: [{offset: 0, hex: '41424344'}],
|
||||
after: [{offset: 0, hex: '41424344'}, {offset: 8, hex: '9900'}],
|
||||
image_truncated: false,
|
||||
});
|
||||
const sub = el('file-diff-sub').textContent;
|
||||
assert.match(sub, /EF_ICCID — READ BINARY/);
|
||||
assert.match(sub, /#12/);
|
||||
const body = el('file-diff-body').innerHTML;
|
||||
assert.match(body, /2 bytes changed, 4 bytes newly observed/);
|
||||
assert.match(body, /hex-cell hex-changed/); // legend + the changed byte
|
||||
assert.match(body, /hex-cell hex-new/);
|
||||
assert.match(body, /hex-cell hex-unknown/);
|
||||
assert.match(body, /Before/);
|
||||
assert.match(body, /After/);
|
||||
assert.equal((body.match(/class="hex-view"/g) || []).length, 2);
|
||||
// The record header variant and the frozen-image note.
|
||||
renderFileDiff({
|
||||
name: 'EF_IMSI', op: 'READ RECORD', record: 2, n_records: 5, index: 40,
|
||||
elapsed: 9.5, ranges: [[0, 1]], observed_ranges: [],
|
||||
before: [{offset: 0, hex: 'aa'}], after: [{offset: 0, hex: 'bb'}],
|
||||
image_truncated: true,
|
||||
});
|
||||
assert.match(el('file-diff-sub').textContent, /Record 2 \/ 5/);
|
||||
assert.match(el('file-diff-body').innerHTML, /image is frozen/);
|
||||
});
|
||||
Reference in new issue
Block a user