test: isolate stateful unit-fast tests (#108334)

test/scripts/ci-node-test-plan.test.ts

@@ -312,6 +312,7 @@ describe("scripts/lib/ci-node-test-plan.mjs", () => {
       {
         configs: [
           "test/vitest/vitest.unit-fast.config.ts",
+          "test/vitest/vitest.unit-fast-isolated.config.ts",
           "test/vitest/vitest.unit-fast-fake-timers.config.ts",
         ],
         requiresDist: false,

test/scripts/test-projects.test.ts

@@ -2707,12 +2707,18 @@ describe("scripts/test-projects changed-target routing", () => {
 
   it("chunks the broad shell helper tooling shard after isolated targets", () => {
     const plans = buildVitestRunPlans(["test/scripts"], process.cwd());
-    expect(plans.slice(0, 3)).toEqual([
+    expect(plans.slice(0, 4)).toEqual([
       expect.objectContaining({
         config: "test/vitest/vitest.unit-fast.config.ts",
         includePatterns: expect.arrayContaining(["test/scripts/arg-utils.test.ts"]),
         watchMode: false,
       }),
+      {
+        config: "test/vitest/vitest.unit-fast-isolated.config.ts",
+        forwardedArgs: [],
+        includePatterns: ["test/scripts/android-version.test.ts"],
+        watchMode: false,
+      },
       {
         config: "test/vitest/vitest.tooling-docker.config.ts",
         forwardedArgs: [],
@@ -2732,7 +2738,7 @@ describe("scripts/test-projects changed-target routing", () => {
     ]);
     const e2ePlans = plans.filter((plan) => plan.config === "test/vitest/vitest.e2e.config.ts");
     const toolingPlans = plans
-      .slice(3)
+      .slice(4)
       .filter((plan) => plan.config === "test/vitest/vitest.tooling.config.ts");
     const toolingTargets = toolingPlans.flatMap((plan) => plan.includePatterns ?? []);
 
@@ -2818,6 +2824,10 @@ describe("scripts/test-projects changed-target routing", () => {
         config: "test/vitest/vitest.unit-fast.config.ts",
         includePatterns: expect.arrayContaining(["src/plugin-sdk/access-groups.test.ts"]),
       }),
+      expect.objectContaining({
+        config: "test/vitest/vitest.unit-fast-isolated.config.ts",
+        includePatterns: ["src/plugin-sdk/memory-host-events.test.ts"],
+      }),
       expect.objectContaining({
         config: "test/vitest/vitest.plugin-sdk-light.config.ts",
         includePatterns: expect.arrayContaining(["src/plugin-sdk/acp-runtime.test.ts"]),
@@ -2855,12 +2865,18 @@ describe("scripts/test-projects changed-target routing", () => {
 
   it("chunks broad shell helper globs after isolated targets", () => {
     const plans = buildVitestRunPlans(["test/scripts/*.test.ts"], process.cwd());
-    expect(plans.slice(0, 3)).toEqual([
+    expect(plans.slice(0, 4)).toEqual([
       expect.objectContaining({
         config: "test/vitest/vitest.unit-fast.config.ts",
         includePatterns: expect.arrayContaining(["test/scripts/arg-utils.test.ts"]),
         watchMode: false,
       }),
+      {
+        config: "test/vitest/vitest.unit-fast-isolated.config.ts",
+        forwardedArgs: [],
+        includePatterns: ["test/scripts/android-version.test.ts"],
+        watchMode: false,
+      },
       {
         config: "test/vitest/vitest.tooling-docker.config.ts",
         forwardedArgs: [],
@@ -2880,7 +2896,7 @@ describe("scripts/test-projects changed-target routing", () => {
     ]);
     const e2ePlans = plans.filter((plan) => plan.config === "test/vitest/vitest.e2e.config.ts");
     const toolingPlans = plans
-      .slice(3)
+      .slice(4)
       .filter((plan) => plan.config === "test/vitest/vitest.tooling.config.ts");
     const toolingTargets = toolingPlans.flatMap((plan) => plan.includePatterns ?? []);
 
@@ -3747,6 +3763,22 @@ describe("scripts/test-projects changed-target routing", () => {
     ]);
   });
 
+  it("routes forced stateful unit-fast tests to the isolated lane", () => {
+    const plans = buildVitestRunPlans(
+      ["src/system-agent/assistant.configured.test.ts"],
+      process.cwd(),
+    );
+
+    expect(plans).toEqual([
+      {
+        config: "test/vitest/vitest.unit-fast-isolated.config.ts",
+        forwardedArgs: [],
+        includePatterns: ["src/system-agent/assistant.configured.test.ts"],
+        watchMode: false,
+      },
+    ]);
+  });
+
   it("routes fake-timer unit-fast tests to the serial fake-timer lane", () => {
     const plans = buildVitestRunPlans(["src/acp/control-plane/manager.test.ts"], process.cwd());
 
@@ -4457,6 +4489,7 @@ describe("scripts/test-projects full-suite sharding", () => {
     }
     expect(leafShardPlans.map((plan) => plan.config)).toEqual([
       ...unitFastPlans.map(() => unitFastConfig),
+      "test/vitest/vitest.unit-fast-isolated.config.ts",
       "test/vitest/vitest.unit-fast-fake-timers.config.ts",
       "test/vitest/vitest.unit-src.config.ts",
       "test/vitest/vitest.unit-security.config.ts",
@@ -4573,7 +4606,7 @@ describe("scripts/test-projects full-suite sharding", () => {
     expect(unitFastPlans.every((plan) => plan.forwardedArgs.length <= 70)).toBe(true);
     expect(unitFastTargets.length).toBeGreaterThan(1_000);
     expect(new Set(unitFastTargets).size).toBe(unitFastTargets.length);
-    expect(unitFastTargets).toContain("extensions/canvas/src/host/server.state-dir.test.ts");
+    expect(unitFastTargets).not.toContain("extensions/canvas/src/host/server.state-dir.test.ts");
     expect(unitFastTargets).not.toContain("src/utils.test.ts");
     const toolingTargets = toolingPlans.flatMap((plan) => plan.forwardedArgs);
     expect(toolingPlans.length).toBeGreaterThan(1);