test: route extension boundary inventory off unit

test/extension-test-boundary.test.ts

@@ -1,9 +1,13 @@
 import fs from "node:fs";
 import path from "node:path";
 import { describe, expect, it } from "vitest";
+import { GUARDED_EXTENSION_PUBLIC_SURFACE_BASENAMES } from "../src/plugins/public-artifacts.js";
 import { BUNDLED_PLUGIN_PATH_PREFIX } from "./helpers/bundled-plugin-paths.js";
 
 const repoRoot = path.resolve(import.meta.dirname, "..");
+const ALLOWED_EXTENSION_PUBLIC_SURFACE_BASENAMES = new Set(
+  GUARDED_EXTENSION_PUBLIC_SURFACE_BASENAMES,
+);
 
 const allowedNonExtensionTests = new Set<string>([
   "src/agents/pi-embedded-runner-extraparams.test.ts",
@@ -44,6 +48,20 @@ function findPluginSdkImports(source: string): string[] {
   ].map((match) => match[1]);
 }
 
+function getImportBasename(importPath: string): string {
+  return importPath.split("/").at(-1) ?? importPath;
+}
+
+function isAllowedCoreContractSuite(file: string, imports: readonly string[]): boolean {
+  return (
+    file.startsWith("src/channels/plugins/contracts/") &&
+    file.endsWith(".contract.test.ts") &&
+    imports.every((entry) =>
+      ALLOWED_EXTENSION_PUBLIC_SURFACE_BASENAMES.has(getImportBasename(entry)),
+    )
+  );
+}
+
 describe("non-extension test boundaries", () => {
   it("keeps plugin-owned behavior suites under the bundled plugin tree", () => {
     const testFiles = [
@@ -64,7 +82,7 @@ describe("non-extension test boundaries", () => {
         if (imports.length === 0) {
           return null;
         }
-        if (allowedNonExtensionTests.has(file)) {
+        if (allowedNonExtensionTests.has(file) || isAllowedCoreContractSuite(file, imports)) {
           return null;
         }
         return {

test/scripts/test-planner.test.ts

@@ -524,25 +524,28 @@ describe("test planner", () => {
     artifacts.cleanupTempArtifacts();
   });
 
-  it("routes targeted boundary inventories through the lean boundary config", () => {
-    const artifacts = createExecutionArtifacts({});
-    const plan = buildExecutionPlan(
-      {
-        mode: "local",
-        surfaces: [],
-        passthroughArgs: ["test/web-search-provider-boundary.test.ts"],
-      },
-      {
-        env: {},
-        writeTempJsonArtifact: artifacts.writeTempJsonArtifact,
-      },
-    );
+  it.each(["test/extension-test-boundary.test.ts", "test/web-search-provider-boundary.test.ts"])(
+    "routes targeted boundary inventories through the lean boundary config: %s",
+    (file) => {
+      const artifacts = createExecutionArtifacts({});
+      const plan = buildExecutionPlan(
+        {
+          mode: "local",
+          surfaces: [],
+          passthroughArgs: [file],
+        },
+        {
+          env: {},
+          writeTempJsonArtifact: artifacts.writeTempJsonArtifact,
+        },
+      );
 
-    expect(plan.targetedUnits).toHaveLength(1);
-    expect(plan.targetedUnits[0]?.surface).toBe("unit");
-    expect(plan.targetedUnits[0]?.args).toContain("vitest.boundary.config.ts");
-    artifacts.cleanupTempArtifacts();
-  });
+      expect(plan.targetedUnits).toHaveLength(1);
+      expect(plan.targetedUnits[0]?.surface).toBe("unit");
+      expect(plan.targetedUnits[0]?.args).toContain("vitest.boundary.config.ts");
+      artifacts.cleanupTempArtifacts();
+    },
+  );
 
   it("normalizes --bail=0 into collect-all failure policy", () => {
     const artifacts = createExecutionArtifacts({});

test/vitest-unit-paths.test.ts

@@ -19,6 +19,7 @@ describe("isUnitConfigTestFile", () => {
     expect(isUnitConfigTestFile("src/infra/matrix-plugin-helper.test.ts")).toBe(false);
     expect(isUnitConfigTestFile("src/plugin-sdk/facade-runtime.test.ts")).toBe(false);
     expect(isUnitConfigTestFile("src/plugins/loader.test.ts")).toBe(false);
+    expect(isUnitConfigTestFile("test/extension-test-boundary.test.ts")).toBe(false);
     expect(isUnitConfigTestFile("src/agents/pi-embedded-runner.test.ts")).toBe(false);
     expect(isUnitConfigTestFile("src/commands/onboard.test.ts")).toBe(false);
     expect(isUnitConfigTestFile("ui/src/ui/views/other.test.ts")).toBe(false);

vitest.unit-paths.mjs

@@ -17,6 +17,7 @@ export const unitTestIncludePatterns = [
 
 export const boundaryTestFiles = [
   "test/extension-plugin-sdk-boundary.test.ts",
+  "test/extension-test-boundary.test.ts",
   "test/plugin-extension-import-boundary.test.ts",
   "test/web-fetch-provider-boundary.test.ts",
   "test/web-search-provider-boundary.test.ts",