| <!DOCTYPE HTML> |
| <title>SVGLengthList, insertItemBefore()</title> |
| <script src="../../resources/testharness.js"></script> |
| <script src="../../resources/testharnessreport.js"></script> |
| <script src="resources/SVGLengthList-helper.js"></script> |
| <svg width="200" height="200"> |
| <text x="500 1000 1500" y="50"> ABC </text> |
| </svg> |
| <script> |
| test(function() { |
| // This is a test of the SVGLengthList.insertItemBefore() API. |
| |
| var svg = document.querySelector("svg"); |
| var list = document.querySelector("text").x.baseVal; |
| |
| // Create three SVGLength objects, with values=50,100,150"); |
| var newLength1 = svg.createSVGLength(); |
| newLength1.value = 50; |
| assert_equals(newLength1.value, 50); |
| |
| var newLength2 = svg.createSVGLength(); |
| newLength2.value = 100; |
| assert_equals(newLength2.value, 100); |
| |
| var newLength3 = svg.createSVGLength(); |
| newLength3.value = 150; |
| assert_equals(newLength3.value, 150); |
| |
| assert_not_equals(newLength1.value, newLength2.value); |
| assert_not_equals(newLength2.value, newLength3.value); |
| assert_not_equals(newLength3.value, newLength1.value); |
| assert_equals(newLength1.value, newLength2.value - 50); |
| assert_equals(newLength2.value + 50, newLength3.value); |
| |
| // Check initial list state"); |
| assert_equals(list.numberOfItems, 3); |
| assert_equals(list.getItem(0).value, 500); |
| assert_equals(list.getItem(1).value, 1000); |
| assert_equals(list.getItem(2).value, 1500); |
| assert_throws("IndexSizeError", function() { list.getItem(3); }); |
| |
| // Spec: If the index is greater than or equal to numberOfItems, then the new item is appended to the end of the list. |
| // Insert item 'newLength1' at the end of the list, by using a large index. |
| assert_equals(list.insertItemBefore(newLength1, 1000).value, newLength1.value); |
| assert_list(list, [500, 1000, 1500, 50]); |
| |
| // Storing getItem(0/1/2/3) in local variables. |
| var item0 = list.getItem(0); |
| var item1 = list.getItem(1); |
| var item2 = list.getItem(2); |
| var item3 = list.getItem(3); |
| |
| // Spec: If the index is equal to 0, then the new item is inserted at the front of the list. |
| // Insert item 'newLength2' at the front of the list, by using index=0". |
| assert_equals(list.insertItemBefore(newLength2, 0).value, newLength2.value); |
| assert_list(list, [100, 500, 1000, 1500, 50]); |
| |
| // Assure that previously saved wrappers still show the old values. |
| assert_equals(item0.value, 500); |
| assert_equals(item1.value, 1000); |
| assert_equals(item2.value, 1500); |
| assert_equals(item3.value, 50); |
| |
| // Spec: The index of the item before which the new item is to be inserted. |
| |
| // Insert item 'newLength3' at position=2, between '500' and '1000'. |
| assert_equals(list.insertItemBefore(newLength3, 2).value, newLength3.value); |
| assert_list(list, [100, 500, 150, 1000, 1500, 50]); |
| |
| // Spec: If newItem is already in a list, then a new object is created with the same values as newItem and this item is inserted into the list. |
| // Otherwise, newItem itself is inserted into the list. |
| |
| // Insert item 'newLength3' at position=1, between '100' and '500', should not remove it from the old position=2 afterwards."); |
| assert_equals(list.insertItemBefore(newLength3, 1).value, newLength3.value); |
| assert_equals(list.numberOfItems, 7); |
| assert_list(list, [100, 150, 500, 150, 1000, 1500, 50]); |
| |
| // Insert item 'newLength1' at position=0, before '100', should not remove it from the old position=6 afterwards. |
| assert_equals(list.insertItemBefore(newLength1, 0).value, newLength1.value); |
| assert_list(list, [50, 100, 150, 500, 150, 1000, 1500, 50]); |
| }); |
| </script> |
