Behavioral evals framework. (#16047)

evals/save_memory.eval.ts

@@ -0,0 +1,31 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { describe, expect } from 'vitest';
+import { evalTest } from './test-helper.js';
+import { validateModelOutput } from '../integration-tests/test-helper.js';
+
+describe('save_memory', () => {
+  evalTest('ALWAYS_PASSES', {
+    name: 'should be able to save to memory',
+    log: true,
+    params: {
+      settings: { tools: { core: ['save_memory'] } },
+    },
+    prompt: `remember that my favorite color is  blue.
+  
+    what is my favorite color? tell me that and surround it with $ symbol`,
+    assert: async (rig, result) => {
+      const foundToolCall = await rig.waitForToolCall('save_memory');
+      expect(
+        foundToolCall,
+        'Expected to find a save_memory tool call',
+      ).toBeTruthy();
+
+      validateModelOutput(result, 'blue', 'Save memory test');
+    },
+  });
+});