diff --git a/src/agents/context.lookup.test.ts b/src/agents/context.lookup.test.ts
index 428d47759bc..a395f0b3089 100644
--- a/src/agents/context.lookup.test.ts
+++ b/src/agents/context.lookup.test.ts
@@ -1,8 +1,13 @@
 import { beforeEach, describe, expect, it, vi } from "vitest";
 
-function mockContextModuleDeps(loadConfigImpl: () => unknown) {
+type DiscoveredModel = { id: string; contextWindow: number };
+
+function mockContextDeps(params: {
+  loadConfig: () => unknown;
+  discoveredModels?: DiscoveredModel[];
+}) {
   vi.doMock("../config/config.js", () => ({
-    loadConfig: loadConfigImpl,
+    loadConfig: params.loadConfig,
   }));
   vi.doMock("./models-config.js", () => ({
     ensureOpenClawModelsJson: vi.fn(async () => {}),
@@ -13,29 +18,42 @@ function mockContextModuleDeps(loadConfigImpl: () => unknown) {
   vi.doMock("./pi-model-discovery.js", () => ({
     discoverAuthStorage: vi.fn(() => ({})),
     discoverModels: vi.fn(() => ({
-      getAll: () => [],
+      getAll: () => params.discoveredModels ?? [],
     })),
   }));
 }
 
+function mockContextModuleDeps(loadConfigImpl: () => unknown) {
+  mockContextDeps({ loadConfig: loadConfigImpl });
+}
+
 // Shared mock setup used by multiple tests.
 function mockDiscoveryDeps(
-  models: Array<{ id: string; contextWindow: number }>,
+  models: DiscoveredModel[],
   configModels?: Record<string, { models: Array<{ id: string; contextWindow: number }> }>,
 ) {
-  vi.doMock("../config/config.js", () => ({
+  mockContextDeps({
     loadConfig: () => ({ models: configModels ? { providers: configModels } : {} }),
-  }));
-  vi.doMock("./models-config.js", () => ({
-    ensureOpenClawModelsJson: vi.fn(async () => {}),
-  }));
-  vi.doMock("./agent-paths.js", () => ({
-    resolveOpenClawAgentDir: () => "/tmp/openclaw-agent",
-  }));
-  vi.doMock("./pi-model-discovery.js", () => ({
-    discoverAuthStorage: vi.fn(() => ({})),
-    discoverModels: vi.fn(() => ({ getAll: () => models })),
-  }));
+    discoveredModels: models,
+  });
+}
+
+function createContextOverrideConfig(provider: string, model: string, contextWindow: number) {
+  return {
+    models: {
+      providers: {
+        [provider]: {
+          models: [{ id: model, contextWindow }],
+        },
+      },
+    },
+  };
+}
+
+async function importResolveContextTokensForModel() {
+  const { resolveContextTokensForModel } = await import("./context.js");
+  await new Promise((r) => setTimeout(r, 0));
+  return resolveContextTokensForModel;
 }
 
 describe("lookupContextTokens", () => {
@@ -150,18 +168,8 @@ describe("lookupContextTokens", () => {
       { id: "google-gemini-cli/gemini-3.1-pro-preview", contextWindow: 1_048_576 },
     ]);
 
-    const cfg = {
-      models: {
-        providers: {
-          "google-gemini-cli": {
-            models: [{ id: "gemini-3.1-pro-preview", contextWindow: 200_000 }],
-          },
-        },
-      },
-    };
-
-    const { resolveContextTokensForModel } = await import("./context.js");
-    await new Promise((r) => setTimeout(r, 0));
+    const cfg = createContextOverrideConfig("google-gemini-cli", "gemini-3.1-pro-preview", 200_000);
+    const resolveContextTokensForModel = await importResolveContextTokensForModel();
 
     const result = resolveContextTokensForModel({
       cfg: cfg as never,
@@ -174,18 +182,8 @@ describe("lookupContextTokens", () => {
   it("resolveContextTokensForModel honors configured overrides when provider keys use mixed case", async () => {
     mockDiscoveryDeps([{ id: "openrouter/anthropic/claude-sonnet-4-5", contextWindow: 1_048_576 }]);
 
-    const cfg = {
-      models: {
-        providers: {
-          " OpenRouter ": {
-            models: [{ id: "anthropic/claude-sonnet-4-5", contextWindow: 200_000 }],
-          },
-        },
-      },
-    };
-
-    const { resolveContextTokensForModel } = await import("./context.js");
-    await new Promise((r) => setTimeout(r, 0));
+    const cfg = createContextOverrideConfig(" OpenRouter ", "anthropic/claude-sonnet-4-5", 200_000);
+    const resolveContextTokensForModel = await importResolveContextTokensForModel();
 
     const result = resolveContextTokensForModel({
       cfg: cfg as never,
@@ -202,16 +200,8 @@ describe("lookupContextTokens", () => {
     // Real callers (status.summary.ts) always pass cfg when provider is explicit.
     mockDiscoveryDeps([{ id: "google/gemini-2.5-pro", contextWindow: 999_000 }]);
 
-    const cfg = {
-      models: {
-        providers: {
-          google: { models: [{ id: "gemini-2.5-pro", contextWindow: 2_000_000 }] },
-        },
-      },
-    };
-
-    const { resolveContextTokensForModel } = await import("./context.js");
-    await new Promise((r) => setTimeout(r, 0));
+    const cfg = createContextOverrideConfig("google", "gemini-2.5-pro", 2_000_000);
+    const resolveContextTokensForModel = await importResolveContextTokensForModel();
 
     // Google with explicit cfg: config direct scan wins before any cache lookup.
     const googleResult = resolveContextTokensForModel({
@@ -272,16 +262,8 @@ describe("lookupContextTokens", () => {
     // window and misreport context limits for the OpenRouter session.
     mockDiscoveryDeps([{ id: "google/gemini-2.5-pro", contextWindow: 999_000 }]);
 
-    const cfg = {
-      models: {
-        providers: {
-          google: { models: [{ id: "gemini-2.5-pro", contextWindow: 2_000_000 }] },
-        },
-      },
-    };
-
-    const { resolveContextTokensForModel } = await import("./context.js");
-    await new Promise((r) => setTimeout(r, 0));
+    const cfg = createContextOverrideConfig("google", "gemini-2.5-pro", 2_000_000);
+    const resolveContextTokensForModel = await importResolveContextTokensForModel();
 
     // model-only call (no explicit provider) must NOT apply config direct scan.
     // Falls through to bare cache lookup: "google/gemini-2.5-pro" → 999k ✓.