docs: fix several links

Change-Id: I89d9fd64dc22c90680bb05415cc966c255165af9
diff --git a/test-runner/src/android/test/mock/package.html b/test-runner/src/android/test/mock/package.html
index 29b2d80..c0fcd1e 100644
--- a/test-runner/src/android/test/mock/package.html
+++ b/test-runner/src/android/test/mock/package.html
@@ -3,7 +3,7 @@
 <p>Utility classes providing stubs or mocks of various Android framework building blocks.</p>
 
 <p>For more information, see the
-<a href="{@docRoot}guide/topics/testing/index.html">Testing</a> developer guide.</p>
+<a href="{@docRoot}tools/testing/index.html">Testing</a> guide.</p>
 {@more}
 
 </BODY>