How to create PathText for Ellipse?

var contents = "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua."
var idoc = app.activeDocument;
var rect = idoc.pathItems.rectangle(-10, 10, 100, 100);
var tframe1 = idoc.textFrames.pathText(rect, 0.5, 3.5);  // startTValue = 0.5, endTValue = 3.5
tframe1.contents = contents;
// fit text to path
while(tframe1.lines[0].characters.length < tframe1.characters.length) {
    tframe1.textRange.characterAttributes.horizontalScale--;
}
var ellips = idoc.pathItems.ellipse(-130, 10, 100, 100);
tframe2 = idoc.textFrames.pathText(ellips, 0.5, 3.5);  // startTValue = 0.5, endTValue = 3.5
tframe2.contents = contents;
// fit text to path
while(tframe2.lines[0].characters.length < tframe2.characters.length) {
    tframe2.textRange.characterAttributes.horizontalScale--;
}