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DavidQ
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Add import/export of session JSON in Workspace V2 with executable validation - PR 11.216
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‎docs/dev/reports/PR_11_216_report.md‎

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# PR_11_216 Report — V2 Import/Export (Session JSON)
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## Import Behavior
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- Added import UI to `tools/workspace-v2/index.html`:
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- `textarea` for JSON input
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- file input for `.json`
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- `Import Session JSON` action
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- `tools/workspace-v2/index.js` import flow:
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1. reads JSON from textarea
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2. parses JSON (`JSON.parse`)
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3. validates payload is an object (non-array)
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4. generates new `hostContextId`
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5. writes `sessionStorage.setItem(hostContextId, JSON.stringify(parsed))`
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6. marks payload as current session and reports explicit status
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- Invalid JSON handling is explicit:
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- message starts with `Imported JSON is invalid: ...`
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- no fallback/default payload is applied
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## Export Behavior
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- Added `Export Current Session JSON` action.
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- Export serializes the current session payload and displays JSON in textarea.
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- Export requires an existing current payload (from fixture load or import) and otherwise shows explicit error.
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## Validation Results
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Commands run:
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1. `node --check tests/runtime/V2ImportExport.test.mjs`
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- Result: **PASS**
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2. `node tests/runtime/V2ImportExport.test.mjs`
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- Result: **PASS**
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3. `node --check tools/workspace-v2/index.js`
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- Result: **PASS**
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Runtime output:
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- `tmp/v2-import-export-results.json`
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- Key assertions passed:
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- JSON parsed during import
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- sessionStorage entry created
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- hostContextId assigned
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- exported JSON matches imported input payload
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- no syntax errors
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## Files Changed
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- `tools/workspace-v2/index.html`
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- `tools/workspace-v2/index.js`
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- `tests/runtime/V2ImportExport.test.mjs`
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- `docs/dev/reports/PR_11_216_report.md`
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## No Fallback Confirmation
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- No default/demo payload path was introduced.
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- No hidden sample loading path was introduced.
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- Invalid input paths return explicit error states only.

‎tests/runtime/V2ImportExport.test.mjs‎

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import assert from "node:assert/strict";
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import fs from "node:fs";
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import path from "node:path";
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import { execFileSync } from "node:child_process";
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import { fileURLToPath, pathToFileURL } from "node:url";
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const __filename = fileURLToPath(import.meta.url);
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const __dirname = path.dirname(__filename);
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const repoRoot = path.resolve(__dirname, "..", "..");
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const fixturePath = path.join(repoRoot, "tests", "fixtures", "v2-tools", "asset-browser-v2.json");
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const workspaceHtmlPath = path.join(repoRoot, "tools", "workspace-v2", "index.html");
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const workspaceJsPath = path.join(repoRoot, "tools", "workspace-v2", "index.js");
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const resultsPath = path.join(repoRoot, "tmp", "v2-import-export-results.json");
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class MemorySessionStorage {
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constructor() {
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this.values = new Map();
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}
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setItem(key, value) {
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this.values.set(String(key), String(value));
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}
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getItem(key) {
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if (!this.values.has(String(key))) {
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return null;
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}
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return this.values.get(String(key));
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}
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}
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function readText(filePath) {
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return fs.readFileSync(filePath, "utf8");
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}
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function readJson(filePath) {
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return JSON.parse(readText(filePath));
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}
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function checkJsSyntax(jsPath) {
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try {
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execFileSync(process.execPath, ["--check", jsPath], {
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cwd: repoRoot,
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stdio: ["ignore", "pipe", "pipe"]
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});
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return { syntaxValid: true, syntaxError: "" };
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} catch (error) {
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return {
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syntaxValid: false,
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syntaxError: (error?.stderr || error?.stdout || error?.message || "").toString().trim()
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};
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}
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}
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function generateHostContextId(toolId) {
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const randomPart = Math.random().toString(36).slice(2, 10);
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return `${toolId}-import-export-${Date.now()}-${randomPart}`;
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}
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function simulateImport(toolId, rawJson, sessionStorageLike) {
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const parsed = JSON.parse(rawJson);
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if (!parsed || typeof parsed !== "object" || Array.isArray(parsed)) {
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throw new Error("Imported JSON is invalid. Expected an object session payload.");
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}
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const hostContextId = generateHostContextId(toolId);
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sessionStorageLike.setItem(hostContextId, JSON.stringify(parsed));
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return { hostContextId, parsed };
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}
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function simulateExport(currentSessionPayload) {
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return JSON.stringify(currentSessionPayload, null, 2);
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}
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export function run() {
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const failures = [];
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const fixtureExists = fs.existsSync(fixturePath);
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const workspaceHtmlExists = fs.existsSync(workspaceHtmlPath);
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const workspaceJsExists = fs.existsSync(workspaceJsPath);
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const workspaceHtml = workspaceHtmlExists ? readText(workspaceHtmlPath) : "";
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const workspaceJs = workspaceJsExists ? readText(workspaceJsPath) : "";
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const { syntaxValid, syntaxError } = checkJsSyntax(workspaceJsPath);
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if (!fixtureExists) {
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failures.push("Fixture file missing.");
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}
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if (!workspaceHtmlExists) {
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failures.push("workspace-v2/index.html missing.");
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}
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if (!workspaceJsExists) {
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failures.push("workspace-v2/index.js missing.");
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}
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let fixture = null;
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let fixtureSessionContext = null;
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let fixtureRawSessionJson = "";
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if (fixtureExists) {
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try {
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fixture = readJson(fixturePath);
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fixtureSessionContext = fixture.sessionContext;
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fixtureRawSessionJson = JSON.stringify(fixtureSessionContext, null, 2);
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} catch {
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failures.push("Fixture JSON failed to parse.");
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}
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}
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if (!fixtureSessionContext || typeof fixtureSessionContext !== "object" || Array.isArray(fixtureSessionContext)) {
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failures.push("Fixture sessionContext missing/invalid.");
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}
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const sessionStorageLike = new MemorySessionStorage();
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let importResult = null;
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try {
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importResult = simulateImport("asset-browser-v2", fixtureRawSessionJson, sessionStorageLike);
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} catch (error) {
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failures.push(`Import simulation failed: ${error instanceof Error ? error.message : "unknown error"}`);
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}
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let exportedJson = "";
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let exportedParsed = null;
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if (importResult) {
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exportedJson = simulateExport(importResult.parsed);
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try {
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exportedParsed = JSON.parse(exportedJson);
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} catch {
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failures.push("Exported JSON failed to parse.");
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}
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}
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const storedPayload = importResult ? sessionStorageLike.getItem(importResult.hostContextId) : null;
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const storedParsed = storedPayload ? JSON.parse(storedPayload) : null;
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const importHostContextAssigned = Boolean(importResult && typeof importResult.hostContextId === "string" && importResult.hostContextId.trim());
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const storageEntryCreated = Boolean(storedPayload);
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const exportMatchesInput = Boolean(exportedParsed && fixtureSessionContext && JSON.stringify(exportedParsed) === JSON.stringify(fixtureSessionContext));
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if (!importHostContextAssigned) {
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failures.push("Import did not assign hostContextId.");
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}
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if (!storageEntryCreated) {
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failures.push("Import did not create sessionStorage entry.");
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}
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if (storedParsed && fixtureSessionContext && JSON.stringify(storedParsed) !== JSON.stringify(fixtureSessionContext)) {
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failures.push("Stored session payload does not match imported JSON.");
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}
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if (!exportMatchesInput) {
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failures.push("Exported JSON does not match imported input payload.");
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}
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if (!workspaceHtml.includes('id="workspaceV2ImportJson"')) {
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failures.push("Import textarea is missing in workspace-v2 HTML.");
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}
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if (!workspaceHtml.includes('id="workspaceV2ImportButton"')) {
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failures.push("Import button is missing in workspace-v2 HTML.");
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}
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if (!workspaceHtml.includes('id="workspaceV2ExportButton"')) {
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failures.push("Export button is missing in workspace-v2 HTML.");
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}
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if (!workspaceJs.includes("importSessionJson()")) {
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failures.push("workspace-v2 JS does not expose importSessionJson handler.");
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}
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if (!workspaceJs.includes("exportCurrentSessionJson()")) {
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failures.push("workspace-v2 JS does not expose exportCurrentSessionJson handler.");
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}
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if (!workspaceJs.includes("JSON.parse(rawJson)")) {
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failures.push("workspace-v2 JS does not parse imported JSON.");
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}
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if (!workspaceJs.includes("sessionStorage.setItem(hostContextId, JSON.stringify(parsed));")) {
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failures.push("workspace-v2 JS does not store imported payload by generated hostContextId.");
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}
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if (!workspaceJs.includes("Imported JSON is invalid")) {
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failures.push("workspace-v2 JS does not expose explicit invalid JSON error messaging.");
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}
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if (!syntaxValid) {
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failures.push("workspace-v2/index.js failed syntax check.");
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}
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const summary = {
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generatedAt: new Date().toISOString(),
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fixturePath: path.relative(repoRoot, fixturePath).replace(/\\/g, "/"),
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workspaceHtmlPath: path.relative(repoRoot, workspaceHtmlPath).replace(/\\/g, "/"),
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workspaceJsPath: path.relative(repoRoot, workspaceJsPath).replace(/\\/g, "/"),
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fixtureExists,
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workspaceHtmlExists,
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workspaceJsExists,
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importHostContextAssigned,
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storageEntryCreated,
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exportMatchesInput,
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syntaxValid,
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syntaxError,
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hostContextId: importResult ? importResult.hostContextId : "",
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failures
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};
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fs.mkdirSync(path.dirname(resultsPath), { recursive: true });
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fs.writeFileSync(resultsPath, `${JSON.stringify(summary, null, 2)}\n`, "utf8");
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console.log(`v2 import/export results: ${resultsPath}`);
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assert.equal(failures.length, 0, `V2 import/export failures: ${failures.join(" | ")}`);
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return summary;
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}
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if (process.argv[1] && import.meta.url === pathToFileURL(process.argv[1]).href) {
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try {
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const summary = run();
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console.log(JSON.stringify(summary, null, 2));
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} catch (error) {
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console.error(error);
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process.exitCode = 1;
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}
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}

‎tools/workspace-v2/index.html‎

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</div>
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</section>
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<section class="hub-panel">
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<h2>Import / Export Session JSON</h2>
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<label for="workspaceV2ImportJson">Session JSON</label>
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<textarea id="workspaceV2ImportJson" rows="12" spellcheck="false" placeholder='{"toolId":"asset-browser-v2","payloadJson":{}}'></textarea>
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<label for="workspaceV2ImportFile">Import File</label>
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<input id="workspaceV2ImportFile" type="file" accept="application/json,.json" />
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<div>
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<button id="workspaceV2ImportButton" type="button">Import Session JSON</button>
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<button id="workspaceV2ExportButton" type="button">Export Current Session JSON</button>
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</div>
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</section>
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<section class="hub-panel">
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<h2>Session Output</h2>
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<pre id="workspaceV2Status">No fixture loaded.</pre>

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