| <!doctype html> |
| <title>Verify existence and basic read/write function of history.scrollRestoration</title> |
| |
| <style> |
| body { |
| height: 2000px; |
| width: 2000px; |
| } |
| </style> |
| |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script type="text/javascript"> |
| 'use strict'; |
| |
| test(function() { |
| assert_equals(history.scrollRestoration, 'auto'); |
| }, 'Default value is "auto"'); |
| |
| test(function() { |
| history.scrollRestoration = 'manual'; |
| assert_equals(history.scrollRestoration, 'manual', 'should be able to set "manual"'); |
| history.scrollRestoration = 'auto'; |
| assert_equals(history.scrollRestoration, 'auto', 'should be able to set "auto"'); |
| }, 'It is writable'); |
| |
| test(function() { |
| history.scrollRestoration = 'auto'; |
| for (var v of [3.1415, {}, 'bogus']) { |
| history.scrollRestoration = v; |
| assert_equals(history.scrollRestoration, 'auto', `setting to invalid value (${v}) should be ignored`); |
| } |
| }, 'Invalid values are ignored'); |
| </script> |
