nvm/test/fast/Unit tests/nvm_supports_xz

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#!/bin/sh
OLDPATH=$PATH
TEST_PATH=../../xz-test
cleanup() {
rm -rf $TEST_PATH/{xz,which,awk,rm,command}
export PATH=$OLDPATH
}
die () { echo $@ ; cleanup ; exit 1; }
\. ../../../nvm.sh
OLDPATH=$PATH
mkdir -p $TEST_PATH
touch ../../xz-test/xz
chmod +x ../../xz-test/xz
export PATH=$TEST_PATH:$PATH
$(nvm_supports_xz "v2.3.2") || \
die "expected 'nvm_supports_xz v2.3.2' to exit with 0"
$(nvm_supports_xz "v0.12.7") && \
die "expected 'nvm_supports_xz v0.12.7' to exit with 1"
# set up for a failure by having a minimal toolset available
# but remove xz
ln -s /usr/bin/which $TEST_PATH/which
ln -s /usr/bin/command $TEST_PATH/command
ln -s /usr/bin/awk $TEST_PATH/awk
ln -s $(which rm) $TEST_PATH/rm
export PATH=$TEST_PATH
rm $TEST_PATH/xz
$(nvm_supports_xz "v2.3.2") && \
die "expected 'nvm_supports_xz v2.3.2' with a missing xz binary to exit with 1"
cleanup