W3C Test: import web-platform-tests/html/rendering

LayoutTests/imported/web-platform-tests/html/rendering/replaced-elements/svg-inline-sizing/svg-inline.js

+// global async_test, assert_equals
+//
+// This test generates a couple of scenarios (each a
+// SVGSizing.TestData) for sizing inline <svg> and uses a simple
+// JavaScript sizing implementation for comparison.
+//
+// The tests loops through different combinations of:
+//
+// * width and height attributes and style on <svg>
+//
+// * viewBox on <svg> (gives intrinsic ratio)
+//
+// * width and height on containing block of <svg>
+//
+// All these may contribute to the final size of the SVG. The test
+// focuses on the size of the CSS box generated by the SVG. Little
+// focus is put on variations within an attribute that doesn't affect
+// the final size.
+//
+// To debug a specific test append ?<test-id> to the URL. An <iframe>
+// is generated with equivalent test and the source of the test is
+// added to a <pre> element.
+
+var debugHint = function(id) { return "(append ?"+id+" to debug) "; };
+var testSingleId;
+if (window.location.search) {
+    testSingleId = window.location.search.substring(1);
+    debugHint = function(id) { return ""; };
+}
+
+var testContainer = document.querySelector('#testContainer');
+var outerWidth = testContainer.getBoundingClientRect().width;
+var outerHeight = testContainer.getBoundingClientRect().height;
+
+SVGSizing.doCombinationTest(
+    [["placeholder", [ null ]],
+     ["containerWidthStyle", [null, "400px"]],
+     ["containerHeightStyle", [null, "400px"]],
+     ["svgViewBoxAttr", [ null, "0 0 100 200" ]],
+     ["svgWidthStyle", [ null, "100px", "50%" ]],
+     ["svgHeightStyle", [ null, "100px", "50%" ]],
+     ["svgWidthAttr", [ null, "200", "25%" ]],
+     ["svgHeightAttr", [ null, "200", "25%" ]]],
+    function(config, id, cont) {
+        var testData = new SVGSizing.TestData(config);
+
+        var expectedRect =
+                testData.computeInlineReplacedSize(outerWidth, outerHeight);
+        var svgElement = testData.buildSVGOrPlaceholder();
+        var container =
+                testData.buildContainer(svgElement);
+
+        var checkSize = function() {
+            var svgRect =
+                    svgElement.getBoundingClientRect();
+
+            try {
+                assert_equals(svgRect.width,
+                              expectedRect.width,
+                              debugHint(id) + "Wrong width");
+                assert_equals(svgRect.height,
+                              expectedRect.height,
+                              debugHint(id) + "Wrong height");
+            } finally {
+                testContainer.removeChild(container);
+                if (testSingleId)
+                    document.body.removeChild(testContainer);
+                cont(id+1);
+            }
+        };
+
+        testContainer.appendChild(container);
+        test(checkSize, testData.name);
+
+        if (testSingleId == id) {
+            testData.buildDemo(expectedRect, id);
+        }
+    }, testSingleId);