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#!/bin/sh
source ./assert.sh
PROGRAM_EXEC="$1"
rm -f input ref out
touch ref out
assert_error "cannot open input file" $PROGRAM_EXEC input ref out
rm -f input ref out
touch input out
assert_error "cannot open reference file" $PROGRAM_EXEC input ref out
rm -f input ref out
rmdir outdir 2>/dev/null
touch input ref
mkdir outdir
chmod -w outdir
assert_error "cannot open output file" $PROGRAM_EXEC input ref outdir/out
rm -f input ref out
rmdir outdir
exit 0
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