Five tests in usePdfRenderer.svelte.test.ts called createPdfRenderer() without
a libLoader, causing init() to dynamically import pdfjs-dist in the browser.
Every dynamic import goes through Playwright's route handler, which calls
resolveManualMock via birpc to check for mocks. If the RPC closes during
teardown while one of these imports is in flight, the birpc race fires —
even though pdfjs-dist was never explicitly vi.mock()-ed.
Replace all bare createPdfRenderer() calls that invoke init() with
createPdfRenderer(makeFakeLibLoader()), identical to the pattern already
used in PdfViewer.svelte.test.ts. No real module loads, no route-handler
calls, no birpc exposure.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Adds idempotency test: calling init() twice must invoke libLoader only once.
Adds `if (pdfjsReady) return;` guard to satisfy the contract.
Addresses Felix Brandt round-4 suggestion on PR #536.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
.catch(()=>{}) swallowed the rejection, so the test passed vacuously even
if a future refactor silently caught the error. rejects.toThrow() proves
the propagation contract holds before asserting pdfjsReady stays false.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Regression-protection test: init() propagates the loader rejection
before pdfjsReady is set, so the renderer stays in a safe unready state.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Adds an optional LibLoader parameter (defaults to the real pdfjs-dist dynamic
imports) and a failing test that verified the loader is called during init().
This is the first step toward removing ManualMockedModule registrations that
race with vitest-browser-playwright's birpc teardown (#535).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
renderCurrentPage early-returns when canvasEl/textLayerEl null,
init() idempotent on second call, zoomIn after floor, goToPage(1)
no-op.
5 new tests covering ~6 branches.
Refs #496.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
