test(FN-000): include reverse dependents in changed tests

scripts/__tests__/test-changed.test.mjs

@@ -230,6 +230,23 @@ test("decideExecutionPlan: only package files changed → changed mode", () => {
   assert.deepEqual(plan.packages, ["@fusion/engine"]);
 });
 
+test("decideExecutionPlan: expands changed packages with reverse dependents", () => {
+  const plan = decideExecutionPlan({
+    forceFullSuite: false,
+    comparisonBase: "abc123",
+    changedFiles: ["packages/core/src/store.ts"],
+    packageNameByDir: basePackageMap,
+    reverseDependencyMap: new Map([
+      ["@fusion/core", ["@fusion/engine"]],
+      ["@fusion/engine", ["@fusion/dashboard"]],
+      ["@fusion/dashboard", []],
+    ]),
+  });
+
+  assert.equal(plan.mode, "changed");
+  assert.deepEqual(plan.packages, ["@fusion/core", "@fusion/engine", "@fusion/dashboard"]);
+});
+
 test("decideExecutionPlan: no affected package resolved → full", () => {
   const plan = decideExecutionPlan({
     forceFullSuite: false,

scripts/test-changed.mjs

@@ -680,6 +680,7 @@ export function decideExecutionPlan({
   comparisonBase,
   changedFiles,
   packageNameByDir,
+  reverseDependencyMap,
 }) {
   if (forceFullSuite) return { mode: "full", reason: "forced" };
   if (!comparisonBase) return { mode: "full", reason: "missing-comparison-base" };
@@ -690,7 +691,12 @@ export function decideExecutionPlan({
   const affectedPackages = resolveAffectedPackages(changedFiles, packageNameByDir);
   if (!affectedPackages || affectedPackages.length === 0) return { mode: "full", reason: "no-affected-package" };
 
-  return { mode: "changed", packages: affectedPackages };
+  return {
+    mode: "changed",
+    packages: reverseDependencyMap
+      ? expandWithReverseDependents(affectedPackages, reverseDependencyMap)
+      : affectedPackages,
+  };
 }
 
 export function main(argv = process.argv.slice(2)) {
@@ -722,12 +728,14 @@ export function main(argv = process.argv.slice(2)) {
   const workspacePackages = listWorkspacePackageInfos();
   const packageNameByDir = listWorkspacePackages(workspacePackages);
   const packageDirByName = buildPackageDirByName(workspacePackages);
+  const reverseDependencyMap = buildReverseDependencyMap(workspacePackages);
 
   const plan = decideExecutionPlan({
     forceFullSuite,
     comparisonBase,
     changedFiles,
     packageNameByDir,
+    reverseDependencyMap,
   });
 
   if (plan.mode === "full") {