fix(shell): remove test harness pipe hazards

scripts/pipefail-early-exit.test.mjs

@@ -7,6 +7,7 @@ import test from 'node:test';
 
 const ROOT = new URL('../', import.meta.url);
 const EXPECTED_BASELINE_SITES = 26;
+const EXPECTED_TEST_BASELINE_SITES = 22;
 const TARGETS = [
   'tools/matrix-presence-harness/run.sh',
   'tools/e2e-install-test.sh',
@@ -25,6 +26,17 @@ const TARGETS = [
   'packages/mosaic/framework/tools/wake/detector.sh',
   'packages/mosaic/framework/tools/wake/digest.sh',
   'packages/mosaic/framework/tools/wake/reconcile.sh',
+  'packages/mosaic/framework/systemd/user/test-fleet-units.sh',
+  'packages/mosaic/framework/tools/git/test-issue-comment-readback.sh',
+  'packages/mosaic/framework/tools/git/test-lane-brief-pr-linkage.sh',
+  'packages/mosaic/framework/tools/git/test-pr-review-gitea-comment.sh',
+  'packages/mosaic/framework/tools/git/test-pr-review-repo-host-override.sh',
+  'packages/mosaic/framework/tools/orchestrator/smoke-test.sh',
+  'packages/mosaic/framework/tools/orchestrator/test-board-roll.sh',
+  'packages/mosaic/framework/tools/quality/scripts/test-upgrade-durable-snapshot.sh',
+  'packages/mosaic/framework/tools/quality/scripts/test-upgrade-rollback.sh',
+  'packages/mosaic/framework/tools/tmux/test-send-message-socket.sh',
+  'packages/mosaic/framework/tools/tmux/test-send-message-verdict.sh',
 ];
 
 // These statuses are explicitly non-load-bearing or unreachable at designed input.
@@ -67,18 +79,31 @@ async function currentSources() {
   );
 }
 
-test('the registered baseline denominator is exactly 26 unsafe sites', async () => {
-  const baseline = JSON.parse(
-    await readFile(new URL('scripts/fixtures/pipefail-early-exit-baseline.json', ROOT), 'utf8'),
-  );
-  assert.equal(baseline.length, EXPECTED_BASELINE_SITES);
-  assert.equal(new Set(baseline).size, EXPECTED_BASELINE_SITES);
+async function assertBaselineFixture(file, expectedCount, expectedUnique = expectedCount) {
+  const baseline = JSON.parse(await readFile(new URL(file, ROOT), 'utf8'));
+  assert.equal(baseline.length, expectedCount);
+  assert.equal(new Set(baseline).size, expectedUnique);
   const fixtureSources = baseline.map((site) => {
     const separator = site.indexOf(':');
     assert.ok(separator > 0, `invalid baseline site: ${site}`);
     return [site.slice(0, separator), site.slice(separator + 1)];
   });
   assert.deepEqual(scan(fixtureSources), baseline);
+}
+
+test('the registered runtime baseline denominator is exactly 26 unsafe sites', async () => {
+  await assertBaselineFixture(
+    'scripts/fixtures/pipefail-early-exit-baseline.json',
+    EXPECTED_BASELINE_SITES,
+  );
+});
+
+test('the registered test baseline denominator is exactly 22 unsafe sites', async () => {
+  await assertBaselineFixture(
+    'scripts/fixtures/pipefail-early-exit-test-baseline.json',
+    EXPECTED_TEST_BASELINE_SITES,
+    21,
+  );
 });
 
 test('load-bearing pipefail paths do not pipe into early-exiting consumers', async () => {