The order of stdout and stderr in bash

ls test.mp4  test.sh 1>/tmp/text  2>&1
cat   /tmp/text
ls: cannot access test.sh: No such file or directory
test.mp4

Why the result is not the following order?

test.mp4
ls: cannot access test.sh: No such file or directory

Maybe 1>/tmp/text was executed first, and test.mp4 locate before test.sh.
Which result in the effect?