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skip_if(not existsonpath("patch"))
mtn_setup()
mkdir("dir")
addfile("dir/file", "foobar")
id = sha1("dir/file")
check(mtn("diff"), 0, true, false)
rename("stdout", "diff")
-- the source of an addition should be /dev/null
check(qgrep("^--- /dev/null $", "diff"))
check(qgrep("^\\+\\+\\+ dir/file " .. id .. "$", "diff"))
-- patch should re-create the file
remove("dir/file")
copy("diff", "stdin")
check({"patch", "-p0"}, 0, false, false, true)
check(exists("dir/file"))
check(qgrep("foobar", "dir/file"))
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