it("returns the first descendant", () => {
const node = root;
assert.isNotNull(node); // make sure we got something
assert.isDefined(node); // make sure we got something
assert.equal(domutil.firstDescendantOrSelf(node),
root.getElementsByTagName("title")[0].firstChild);
});
it("moves the caret to the previous line", () => {
// Text node inside 2nd paragraph.
const initial = editor.dataRoot.querySelectorAll("body>p")[1];
caretManager.setCaret(initial.firstChild, 0);
editor.type(keyConstants.UP_ARROW);
// We end up in the previous paragraph.
dataCaretCheck(editor,
firstDescendantOrSelf(initial.previousElementSibling)!,
0, "moved up");
});
it("moves the caret to the next line", () => {
// Text node inside paragraph.
const initial = editor.dataRoot.querySelector("body>p")!;
caretManager.setCaret(initial.firstChild, 0);
editor.type(keyConstants.DOWN_ARROW);
// We end up in the next paragraph.
dataCaretCheck(editor,
firstDescendantOrSelf(initial.nextElementSibling)!,
0, "moved down");
});
it("returns null when passed undefined", () => {
assert.isNull(domutil.firstDescendantOrSelf(undefined));
});
it("returns null when passed null", () => {
assert.isNull(domutil.firstDescendantOrSelf(null));
});