Assertion:
The DIR="RTL" attribute right aligns the content of INPUT elements WITHIN the form field, not the element itself relative to the viewport as it does for other elements.

Plain Input Type=Text field, short value ("value1"):
filler text filler text

Input Type=Text field, short value ("value1"), Dir=rtl:
filler text filler text

Plain Input Type=Text field, long value ("This is a longer text value example"):
filler text filler text

Plain Input Type=Text field, long value ("This is a longer text value example"), Dir=rtl:
filler text filler text