fix(vscode): wait for source maps before running debugged tests

packages/vscode/AGENTS.md

@@ -23,7 +23,7 @@ One extension replacing the standalone `rstack.rslint` and `rstack.rstest` exten
 
 10. **Test file ownership** (test) — publication mirrors the CLI per project. When a request carries the same file or the same case from several projects (merged gutter, run-at-cursor, run-current-file; all three profiles reach `startTestRun`), only items of the deepest project root run and the others are reported skipped to clear stale merged gutter state — implemented in `runRouting.ts`, `index.ts` (`startTestRun`), and `master.ts` (`RstestApi.project` made public). Explicit single-project selections, project/folder/Run All, and `rstack.rstest.runInTerminal` (VS Code supplies one explicitly picked item) keep CLI scope.
 
-11. **Debugger-owned test processes** (test) — debug runs use js-debug `launch` with child-process auto-attach instead of upstream's `--inspect-wait` plus `attach`. js-debug owns inspector endpoints and process teardown; `debuggerPort` / `debuggerAddress` are removed without migration. `debugWorker.ts` owns the session and a debug-only local socket carrying JSON birpc messages (`shared/socketRpc.ts`) after a first-line per-launch secret authenticates the worker; normal runs retain Node IPC. Preserve the 9229-occupied breakpoint and continue/cancel/stop cleanup regression in `e2e/rstest/suite/debug.test.ts` when syncing.
+11. **Debugger-owned test processes** (test) — debug runs use js-debug `launch` with child-process auto-attach instead of upstream's `--inspect-wait` plus `attach`, and `pauseForSourceMap: true` lets TypeScript breakpoints bind before in-memory test bundles execute. js-debug owns inspector endpoints and process teardown; `debuggerPort` / `debuggerAddress` are removed without migration. `debugWorker.ts` owns the session and a debug-only local socket carrying JSON birpc messages (`shared/socketRpc.ts`) after a first-line per-launch secret authenticates the worker; normal runs retain Node IPC. Preserve the 9229-occupied breakpoint and continue/cancel/stop cleanup regression in `e2e/rstest/suite/debug.test.ts` when syncing.
 
 12. **Function-title discovery** (test) — `stacks/test/parserTest.ts` replaces upstream's scope pre-pass with walk-order bindings and assignment tracking for runtime-name parity. Unbound identifiers (including default imports) and non-computed members use best-effort identifier/property names rather than giving up with `unnamed test`; known unknown bindings still stay unnamed. Re-apply this adaptation when syncing `parserTest.ts`, preserving the upstream tests and local runtime-parity cases.
 

packages/vscode/src/stacks/test/master.ts

@@ -826,6 +826,8 @@ export class RstestApi {
             cwd: this.cwd,
             env: workerEnv,
             autoAttachChildProcesses: true,
+            // In-memory test bundles can execute before TS breakpoints bind with js-debug's Node default (#79).
+            pauseForSourceMap: true,
             skipFiles: getConfigValue('debugExclude', this.workspace),
             ...(debugOutFiles.length ? { outFiles: debugOutFiles } : {}),
           },

packages/vscode/tests/stacks/test/master.test.ts

@@ -1340,6 +1340,7 @@ describe('Rstest public API', () => {
             DEBUG_ONLY: 'yes',
             RSTEST: 'true',
           },
+          pauseForSourceMap: true,
           skipFiles: ['**/vendor/**'],
           outFiles: ['**/compiled/**/*.js'],
         });