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function getNonParentNodes() {
return [
document.implementation.createDocumentType("html", "", ""),
document.createTextNode("text"),
document.implementation.createDocument(null, "foo", null).createProcessingInstruction("foo", "bar"),
document.createComment("comment"),
document.implementation.createDocument(null, "foo", null).createCDATASection("data"),
];
}
function getNonInsertableNodes() {
return [
document.implementation.createHTMLDocument("title")
];
}
function getNonDocumentParentNodes() {
return [
document.createElement("div"),
document.createDocumentFragment(),
];
}
// Test that the steps happen in the right order, to the extent that it's
// observable. The variable names "parent", "child", and "node" match the
// corresponding variables in the replaceChild algorithm in these tests.
// Step 1 happens before step 3.
test(function() {
var illegalParents = getNonParentNodes();
var child = document.createElement("div");
var node = document.createElement("div");
illegalParents.forEach(function (parent) {
assert_throws_dom("HierarchyRequestError", function() {
insertFunc.call(parent, node, child);
});
});
}, "Should check the 'parent' type before checking whether 'child' is a child of 'parent'");
// Step 2 happens before step 3.
test(function() {
var parent = document.createElement("div");
var child = document.createElement("div");
var node = document.createElement("div");
node.appendChild(parent);
assert_throws_dom("HierarchyRequestError", function() {
insertFunc.call(parent, node, child);
});
}, "Should check that 'node' is not an ancestor of 'parent' before checking whether 'child' is a child of 'parent'");
// Step 3 happens before step 4.
test(function() {
var parent = document.createElement("div");
var child = document.createElement("div");
var illegalChildren = getNonInsertableNodes();
illegalChildren.forEach(function (node) {
assert_throws_dom("NotFoundError", function() {
insertFunc.call(parent, node, child);
});
});
}, "Should check whether 'child' is a child of 'parent' before checking whether 'node' is of a type that can have a parent.");
// Step 3 happens before step 5.
test(function() {
var child = document.createElement("div");
var node = document.createTextNode("");
var parent = document.implementation.createDocument(null, "foo", null);
assert_throws_dom("NotFoundError", function() {
insertFunc.call(parent, node, child);
});
node = document.implementation.createDocumentType("html", "", "");
getNonDocumentParentNodes().forEach(function (parent) {
assert_throws_dom("NotFoundError", function() {
insertFunc.call(parent, node, child);
});
});
}, "Should check whether 'child' is a child of 'parent' before checking whether 'node' is of a type that can have a parent of the type that 'parent' is.");
// Step 3 happens before step 6.
test(function() {
var child = document.createElement("div");
var parent = document.implementation.createDocument(null, null, null);
var node = document.createDocumentFragment();
node.appendChild(document.createElement("div"));
node.appendChild(document.createElement("div"));
assert_throws_dom("NotFoundError", function() {
insertFunc.call(parent, node, child);
});
node = document.createElement("div");
parent.appendChild(document.createElement("div"));
assert_throws_dom("NotFoundError", function() {
insertFunc.call(parent, node, child);
});
parent.firstChild.remove();
parent.appendChild(document.implementation.createDocumentType("html", "", ""));
node = document.implementation.createDocumentType("html", "", "")
assert_throws_dom("NotFoundError", function() {
insertFunc.call(parent, node, child);
});
}, "Should check whether 'child' is a child of 'parent' before checking whether 'node' can be inserted into the document given the kids the document has right now.");