tests/test-clone-failure

run-tests: detect when hghave fails to check for a feature and fail test

hghave exitcode != 0 might mean that hghave failed to check for feature
avaibility. Detect those cases, and fail the test, instead of skipping it.

#!/bin/sh

# No local source
hg clone a b
echo $?

# No remote source
hg clone http://127.0.0.1:3121/a b
echo $?
rm -rf b # work around bug with http clone

# Inaccessible source
mkdir a
chmod 000 a
hg clone a b
echo $?

# Inaccessible destination
mkdir b
cd b
hg init
hg clone . ../a
echo $?
cd ..
chmod 700 a
rm -r a b

# Source of wrong type
if "$TESTDIR/hghave" -q fifo; then
    mkfifo a
    hg clone a b
    echo $?
    rm a
else
    echo "abort: repository a not found!"
    echo 255
fi

# Default destination, same directory
mkdir q
cd q
hg init
cd ..
hg clone q

# destination directory not empty
mkdir a 
echo stuff > a/a
hg clone q a
echo $?

# leave existing directory in place after clone failure
hg init c
cd c
echo c > c
hg commit -A -m test -d '0 0'
chmod -rx .hg/store/data
cd ..
mkdir d
hg clone c d 2> err
echo $?
test -d d && echo "dir is still here" || echo "dir is gone"
test -d d/.hg && echo "repo is still here" || echo "repo is gone"

true