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magicka-vm/crates/web_tests/e2e/specs/play.spec.js
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linus-dandClaude Opus 4.8 9d9d5ce41c Add web game (plan2.md) on the independent runtime, merge-blocking gates
Builds the browser game around the existing Rust runtime: a window into the
universe, not a second simulation. Pure std, no external crates.

New crates:
- protocol: versioned, hashable client/server messages + hand-rolled JSON value
  and total parser (malformed packet -> Err, never panic).
- game_runtime: authoritative match state. Resolves turns through the
  INDEPENDENT interpreter (runtime_under_test::native_resolve), not the
  reference engine; filters visibility/knowledge; records and regenerates
  replays. A match is a pure function of (seed, roster, ordered inputs).
- web_assets/web_client: embedded browser client (arena, rune editor,
  knowledge panels, replay viewer) + static HTTP delivery.
- server: std::net HTTP + WebSocket (hand-rolled SHA-1/base64/RFC-6455 framing),
  turn timer, disconnect handling, panic-proof dispatch, poison-tolerant lock.
- web_tests: dependency-free WebSocket test client + Phase H gates.

Trust hardening per review:
- game_runtime no longer delegates to reference_runtime::execute; it runs the
  independent interpreter that the runtime-equivalence gate proves correct.
- Protocol/socket/replay/visibility/resilience gates are merge-blocking
  (added to the merge_group-required job in merge-gates.yml): 1k matches/0
  drift, 10k fuzz/0 panics, 100 headless socket E2E, 0 hidden-state leaks.
- Rendered-browser E2E is marked EXTERNAL-BLOCKED: Playwright runs advisory-only
  (continue-on-error, artifacts) until CI infrastructure with a browser exists;
  it is treated as unsatisfied, not green. The headless 100-match gate is
  labeled protocol-level coverage, not rendered-browser coverage.
- README documents the hand-rolled crypto/parser audit risk explicitly.

Fixes an integer-overflow panic in observed-volatility inference (i64 sum /
abs near i64::MIN) that could poison the server mutex.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-21 20:20:46 -07:00

44 lines
1.9 KiB
JavaScript

// Rendered-browser E2E: a real Chromium joins a match, the turn timer runs, the
// player edits + saves a rune program, casts, sees filtered results, and replays
// the match — verifying the recorded replay hashes match what was seen live.
//
// This is the browser layer of plan2.md Phase H ("Playwright end-to-end tests").
const { test, expect } = require("@playwright/test");
test("a player can join, cast, and replay a browser match", async ({ page }) => {
await page.goto("/");
// Connects to the authoritative server.
await expect(page.locator("#conn")).toHaveText("connected", { timeout: 10000 });
// The turn timer is running (header shows a turn + countdown).
await expect(page.locator("#timer")).toContainText("turn", { timeout: 10000 });
// The arena rendered with the player's marker.
await expect(page.locator(".cell.self")).toHaveCount(1, { timeout: 10000 });
// Domains panel shows the hidden-state redaction notice (visibility layer).
await expect(page.locator("#redactions")).toContainText("withheld", { timeout: 10000 });
// Edit a rune program: add a couple of runes and save.
await page.fill("#tok-a", "1");
await page.fill("#tok-b", "2");
await page.click("#btn-add");
await page.click("#btn-add");
await page.click("#btn-save");
// Observed diagnostics appear (names/counts only).
await expect(page.locator("#diag-body")).toContainText("known reads", { timeout: 10000 });
// Cast and wait for a resolved-turn log line.
await page.click("#btn-cast");
await expect(page.locator("#log")).toContainText("cast a rune program", { timeout: 15000 });
// Request and step the replay; the client verifies hashes vs. what it saw live.
await page.click("#btn-replay");
await expect(page.locator("#replay-status")).toContainText("replay loaded", { timeout: 10000 });
await page.click("#btn-replay-step");
// A matching hash line is shown (no MISMATCH).
await expect(page.locator(".hash-bad")).toHaveCount(0);
});