nvm/test/fast/Running "nvm use x" should ...

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#!/usr/bin/env bash
. ../../nvm.sh
TEST_NODE_VERSION="v0.10.29"
TEST_COUNT=0
TEST_PASSED=0
TEST_FAILED=0
function registerExpectedSymlink() {
registerResult ${1}
}
function registerExpectedNoSymlink() {
[ ${1} -ne 0 ]
registerResult $?
}
function registerResult() {
result=${1}
TEST_COUNT=$(($TEST_COUNT + 1))
[ ${result} -eq 0 ] \
&& TEST_PASSED=$(($TEST_PASSED + 1)) \
|| TEST_FAILED=$(($TEST_FAILED + 1))
}
function cleanup() {
rm -rf ../../${TEST_NODE_VERSION}
rm -f ../../current
}
function runNvmUse() {
mkdir ../../${TEST_NODE_VERSION}
nvm use ${TEST_NODE_VERSION} > /dev/null 2>&1
rmdir ../../${TEST_NODE_VERSION}
}
function isCurrentSymlinkPresent() {
[ -L ../../current ]
}
NVM_SYMLINK_CURRENT=false
cleanup
runNvmUse
isCurrentSymlinkPresent && echo >&2 "Expected 'current' symlink not to be created when NVM_SYMLINK_CURRENT=false!"
registerExpectedNoSymlink $?
NVM_SYMLINK_CURRENT=true
cleanup
runNvmUse
isCurrentSymlinkPresent || echo >&2 "Expected 'current' symlink to be created when NVM_SYMLINK_CURRENT=true!"
registerExpectedSymlink $?
NVM_SYMLINK_CURRENT=garbagevalue
cleanup
runNvmUse
isCurrentSymlinkPresent && echo >&2 "Expected 'current' symlink not to be created when NVM_SYMLINK_CURRENT contains a string!"
registerExpectedNoSymlink $?
NVM_SYMLINK_CURRENT=0
cleanup
runNvmUse
isCurrentSymlinkPresent && echo >&2 "Expected 'current' symlink not to be created when NVM_SYMLINK_CURRENT=0!"
registerExpectedNoSymlink $?
NVM_SYMLINK_CURRENT=1
cleanup
runNvmUse
isCurrentSymlinkPresent && echo >&2 "Expected 'current' symlink not to be created when NVM_SYMLINK_CURRENT=1!"
registerExpectedNoSymlink $?
unset NVM_SYMLINK_CURRENT
cleanup
runNvmUse
isCurrentSymlinkPresent && echo >&2 "Expected 'current' symlink not to be created when NVM_SYMLINK_CURRENT has been unset (default behaviour)!"
registerExpectedNoSymlink $?
cleanup
[ ${TEST_FAILED} -ne 0 ] && echo "${TEST_COUNT} tested, ${TEST_PASSED} passed, ${TEST_FAILED} failed" && exit 1 || true