| <!DOCTYPE html> |
| <html> |
| <head> |
| <title>find forwards and backwards</title> |
| <script src="../../../resources/testharness.js"></script> |
| <script src="../../../resources/testharnessreport.js"></script> |
| </head> |
| <body> |
| <p> |
| Tests find going both forward and backwards in small and large documents. |
| </p> |
| <script> |
| function findForwards(textNode, pattern) { |
| var selection = window.getSelection(); |
| selection.removeAllRanges(); |
| |
| var beforeTextNodeRange = document.createRange(); |
| beforeTextNodeRange.setStartBefore(textNode); |
| beforeTextNodeRange.setEndBefore(textNode); |
| selection.addRange(beforeTextNodeRange); |
| |
| assert_true(find(pattern, false), 'Match expected.'); |
| assert_equals(selection.rangeCount, 1, 'Exactly one match expected.'); |
| |
| var resultRange = selection.getRangeAt(0); |
| assert_equals(resultRange.startContainer, textNode); |
| assert_equals(resultRange.endContainer, textNode); |
| |
| return resultRange.startOffset + ', ' + resultRange.endOffset; |
| } |
| |
| function findBackwards(textNode, pattern) { |
| var selection = window.getSelection(); |
| selection.removeAllRanges(); |
| |
| var afterTextNodeRange = document.createRange(); |
| afterTextNodeRange.setStartAfter(textNode); |
| afterTextNodeRange.setEndAfter(textNode); |
| selection.addRange(afterTextNodeRange); |
| |
| assert_true(find(pattern, false, true), 'Match expected.'); |
| assert_equals(selection.rangeCount, 1, 'Exactly one match expected.'); |
| |
| var resultRange = selection.getRangeAt(0); |
| assert_equals(resultRange.startContainer, textNode); |
| assert_equals(resultRange.endContainer, textNode); |
| |
| return resultRange.startOffset + ', ' + resultRange.endOffset; |
| } |
| |
| var textNode = document.createTextNode(''); |
| document.body.appendChild(textNode); |
| |
| textNode.textContent = 'abc'; |
| test(function() { |
| assert_equals(findForwards(textNode, 'a'), '0, 1'); |
| assert_equals(findForwards(textNode, 'b'), '1, 2'); |
| assert_equals(findForwards(textNode, 'c'), '2, 3'); |
| }, 'Find forwards for short document.'); |
| |
| test(function() { |
| assert_equals(findBackwards(textNode, 'a'), '0, 1'); |
| assert_equals(findBackwards(textNode, 'b'), '1, 2'); |
| assert_equals(findBackwards(textNode, 'c'), '2, 3'); |
| }, 'Find backwards for short document.'); |
| |
| var tenThousandChars = Array(10001).join('0'); |
| textNode.textContent = tenThousandChars + 'abc' + tenThousandChars; |
| |
| test(function() { |
| assert_equals(findForwards(textNode, 'a'), '10000, 10001'); |
| assert_equals(findForwards(textNode, 'b'), '10001, 10002'); |
| assert_equals(findForwards(textNode, 'c'), '10002, 10003'); |
| }, 'Find forwards for long document.'); |
| |
| test(function() { |
| assert_equals(findBackwards(textNode, 'a'), '10000, 10001'); |
| assert_equals(findBackwards(textNode, 'b'), '10001, 10002'); |
| assert_equals(findBackwards(textNode, 'c'), '10002, 10003'); |
| }, 'Find backwards for long document.'); |
| |
| document.body.removeChild(textNode); |
| </script> |
| </body> |
| </html> |
