update tests
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update tests
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mkdir a
cd a
hg init
echo 123 > a
hg add a
hg commit -t "a" -u a -d "0 0"
cd ..
mkdir b
cd b
hg init
echo 321 > b
hg add b
hg commit -t "b" -u b -d "0 0"
hg pull ../a
hg heads