[Tests] run every remaining test file: exec bits, fixes; add check-exec to CI

urchin only executes test files that have the executable bit, silently skipping the rest,
and `npm run test:check-exec` would catch non-executable ones, but no workflow ran it -
so several test files have never actually run.
Make all of them executable, and fix the ones that were broken:
- the io.js source-install tests, skipped since 2016: io.js requires python 2 and gcc <= 5,
so they now skip on toolchains that can not compile it,
and a new gcc:4.9-container CI job runs them unmodified -
resolving, downloading, checksumming, and compiling io.js for real.
New `fake source` variants exercise nvm's source pipeline everywhere -
cache lookup, offline resolution, extraction, configure, make, make install, activation -
via a tiny fake source tree seeded into the download cache and installed with `--offline`.
Also strengthen the `nvm run | grep` assertions with `--silent`,
since the version banner used to satisfy the grep even when the built binary could not run,
and give the final assertions the `die` they always meant to call.
- `nvm uninstall ... incorrect file permissions fails nicely`, parked in 2025 as failing:
`sudo npm` resets PATH, so node 5's npm crashed under the system node.
The permissions check only trips on files that are neither writable nor self-owned,
and that precondition only needs `sudo touch` - not npm, jspm, or the network -
so use that, against a fake installed version,
and skip only where passwordless sudo does not exist.
- `nvm install --offline`: `nvm ls | tail -1` always grabbed an alias line, never a version;
use `nvm_ls` and skip its trailing `system <version>` line.
- `nvm exec ... help should not parse`: in a BRE, `[options]` is a bracket expression,
so the grep could never match node's literal `Usage: node [options]` output.
- `nvm use ... nvmrc containing not installed version`: current output once again matches its expectations verbatim; no changes needed.

Rewrite `test:check-exec` in POSIX sh - npm runs scripts with /bin/sh, which is dash on Ubuntu,
where the previous `[[`/`$'\n'` bashisms would break;
match by extension, so that filenames containing dots can not dodge the check;
and disable git's `core.quotePath` mangling of the non-ASCII test filenames.
Then wire it into the lint workflow.

.github/workflows/lint.yml

@@ -71,11 +71,29 @@ jobs:
       - name: check tests filenames
         run: ./rename_test.sh --check
 
+  check_exec:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: step-security/harden-runner@v2
+        with:
+          allowed-endpoints:
+            github.com:443
+            raw.githubusercontent.com:443
+            nodejs.org:443
+            registry.npmjs.org:443
+      - uses: actions/checkout@v6
+      - uses: ljharb/actions/node/install@main
+        name: 'nvm install lts/* && npm install'
+        with:
+          node-version: 'lts/*'
+      - name: check that test files are executable
+        run: npm run test:check-exec
+
   all:
     permissions:
       contents: none
     name: 'all linting'
-    needs: [eclint, dockerfile_lint, doctoc, test_naming]
+    needs: [eclint, dockerfile_lint, doctoc, test_naming, check_exec]
     runs-on: ubuntu-latest
     steps:
       - run: true

.github/workflows/tests-installation-iojs.yml

@@ -98,11 +98,45 @@ jobs:
         run: sudo apt-get install curl -y
         shell: bash
 
+  installation_iojs_source_compile:
+    permissions:
+      contents: read
+
+    name: 'actually compile io.js from source (gcc 4.9 container)'
+    runs-on: ubuntu-latest
+    timeout-minutes: 60
+
+    steps:
+      - name: Harden Runner
+        uses: step-security/harden-runner@v2
+        with:
+          allowed-endpoints:
+            github.com:443
+            mirror.gcr.io:443
+            storage.googleapis.com:443
+            iojs.org:443
+      - uses: actions/checkout@v6
+      # io.js requires python 2 and gcc <= 5 to compile; the gcc:4.9 image
+      # (debian jessie) has both, plus curl/wget/xz and CA certificates that
+      # still validate iojs.org - so the source-install tests run unmodified,
+      # resolving, downloading, checksumming, and compiling for real.
+      # The image is pulled through Google's Docker Hub mirror: it serves
+      # manifests and blobs from a single stable hostname (Docker Hub's blob
+      # CDN hostnames rotate, which the blocked-egress policy can not allow),
+      # and it is not subject to Docker Hub's anonymous pull rate limits.
+      - name: compile io.js from source, for real
+        run: |
+          docker run --rm -v "${PWD}:/nvm-under-test" -e NVM_DIR=/nvm-under-test mirror.gcr.io/library/gcc:4.9 bash -ec '
+            cd "${NVM_DIR}/test/installation_iojs"
+            sh "./install from source"
+            sh "./install version specified in .nvmrc from source"
+          '
+
   all:
     permissions:
       contents: none
     name: 'all installation_iojs tests'
-    needs: [installation_iojs_without_curl]
+    needs: [installation_iojs_without_curl, installation_iojs_source_compile]
     runs-on: ubuntu-latest
     steps:
       - run: true

nvm.sh

@@ -3163,21 +3163,28 @@ nvm_cache_dir() {
 nvm_ls_cached() {
   local PATTERN
   PATTERN="${1-}"
-  local CACHE_BIN_DIR
-  CACHE_BIN_DIR="$(nvm_cache_dir)/bin"
-  if [ ! -d "${CACHE_BIN_DIR}" ]; then
-    return
-  fi
+  local NVM_CACHE_DIR
+  NVM_CACHE_DIR="$(nvm_cache_dir)"
   local NVM_OS
   NVM_OS="$(nvm_get_os)"
   local NVM_ARCH
   NVM_ARCH="$(nvm_get_arch)"
   local SUFFIX
   SUFFIX="${NVM_OS}-${NVM_ARCH}"
-  # shellcheck disable=SC2010
-  command ls -1 "${CACHE_BIN_DIR}" \
-    | nvm_grep "^node-v.*-${SUFFIX}\$" \
-    | command sed "s/^node-\\(v[0-9][0-9.]*\\)-${SUFFIX}\$/\\1/" \
+  {
+    if [ -d "${NVM_CACHE_DIR}/bin" ]; then
+      # shellcheck disable=SC2010
+      command ls -1 "${NVM_CACHE_DIR}/bin" \
+        | nvm_grep "^\\(node\\|iojs\\)-v[0-9][0-9.]*-${SUFFIX}\$" \
+        | command sed "s/-${SUFFIX}\$//"
+    fi
+    if [ -d "${NVM_CACHE_DIR}/src" ]; then
+      # shellcheck disable=SC2010
+      command ls -1 "${NVM_CACHE_DIR}/src" \
+        | nvm_grep "^\\(node\\|iojs\\)-v[0-9][0-9.]*\$"
+    fi
+  } \
+    | command sed 's/^node-//' \
     | nvm_grep "$(nvm_ensure_version_prefix "${PATTERN}")" \
     | command sort -t. -u -k 1.2,1n -k 2,2n -k 3,3n
 }

package.json

@@ -14,7 +14,7 @@
     "test/installation/node": "shell=$(basename -- $(ps -o comm= $(ps -o ppid= -p $PPID)) | sed 's/^-//'); make TEST_SUITE=installation_node test-$shell",
     "test/installation/iojs": "shell=$(basename -- $(ps -o comm= $(ps -o ppid= -p $PPID)) | sed 's/^-//'); make TEST_SUITE=installation_iojs test-$shell",
     "test/sourcing": "shell=$(basename -- $(ps -o comm= $(ps -o ppid= -p $PPID)) | sed 's/^-//'); make TEST_SUITE=sourcing test-$shell",
-    "test:check-exec": "(IFS=$'\\n'; for file in $(git ls-files test); do if [ ! -x \"$file\" ] && [[ \"$file\" != *.* ]] && [[ \"$file\" != test/fixtures/* ]]; then echo \"$file\"; fi; done) | tee /dev/stderr | awk 'END {if (NR > 0) exit 1}'",
+    "test:check-exec": "git -c core.quotePath=false ls-files test | while IFS= read -r file; do if [ ! -x \"$file\" ]; then case \"$file\" in test/fixtures/*|*.json|*.txt|*.sh|*.js|*.log|*.tab|*.gitkeep) ;; *) echo \"$file\" ;; esac; fi; done | tee /dev/stderr | awk 'END {if (NR > 0) exit 1}'",
     "test:check-nonexec": "(IFS=$'\\n'; for file in $(git ls-files test); do if [ -x \"$file\" ] && [ ! -d \"$file\" ] && { [[ \"$file\" =~ '\\.(json|txt|sh|js|log)$' ]] || [[ \"$file\" =~ '^test/(mocks|fixtures)/.*' ]]; }; then echo \"$file\"; fi; done) | tee /dev/stderr | awk 'END {if (NR > 0) exit 1}'",
     "doctoc": "doctoc --title='## Table of Contents' --github README.md",
     "predoctoc:check": "cp README.md v-README.md.orig && npm run doctoc",

test/fast/Unit tests/nvm install --offline

@@ -12,8 +12,10 @@ nvm_download() {
 }
 
 # --offline with an already-installed version should succeed
-INSTALLED_VERSION="$(nvm ls | command tail -1 | command awk '{print $1}' | command sed 's/\x1b\[[0-9;]*m//g')"
-if [ -n "${INSTALLED_VERSION}" ] && [ "_${INSTALLED_VERSION}" != '_N/A' ] && [ "_${INSTALLED_VERSION}" != '_system' ]; then
+# (`nvm ls` ends with the alias listing, so use `nvm_ls`, which emits bare
+# versions, and skip its trailing `system <version>` line)
+INSTALLED_VERSION="$(nvm_ls | command grep -v '^system' | command tail -n1)"
+if [ -n "${INSTALLED_VERSION}" ] && [ "_${INSTALLED_VERSION}" != '_N/A' ]; then
   try nvm install --offline "${INSTALLED_VERSION}"
   [ "_$CAPTURED_EXIT_CODE" = "_0" ] \
     || die "nvm install --offline with installed version '${INSTALLED_VERSION}' should succeed, got exit code $CAPTURED_EXIT_CODE"

test/fast/Unit tests/nvm_offline_version

@@ -10,6 +10,10 @@ TEST_DIR="$(pwd)/nvm_offline_version_tmp"
 
 cleanup() {
   rm -rf "${TEST_DIR}"
+  CACHE_DIR="$(nvm_cache_dir)"
+  SUFFIX="$(nvm_get_os)-$(nvm_get_arch)"
+  rm -rf "${CACHE_DIR}/bin/node-v0.99.98-${SUFFIX}" "${CACHE_DIR}/bin/iojs-v0.99.97-${SUFFIX}" \
+    "${CACHE_DIR}/src/node-v0.99.96" "${CACHE_DIR}/src/iojs-v0.99.95"
 }
 
 [ ! -e "${TEST_DIR}" ] && mkdir -p "${TEST_DIR}"
@@ -36,4 +40,33 @@ try nvm_ls_cached "999.999"
 [ -z "$CAPTURED_STDOUT" ] \
   || die "nvm_ls_cached '999.999' should return empty; got '$CAPTURED_STDOUT'"
 
+# nvm_ls_cached should list bin- and src-cached artifacts, for node and io.js
+CACHE_DIR="$(nvm_cache_dir)"
+SUFFIX="$(nvm_get_os)-$(nvm_get_arch)"
+mkdir -p "${CACHE_DIR}/bin/node-v0.99.98-${SUFFIX}" "${CACHE_DIR}/bin/iojs-v0.99.97-${SUFFIX}" \
+  "${CACHE_DIR}/src/node-v0.99.96" "${CACHE_DIR}/src/iojs-v0.99.95"
+
+try nvm_ls_cached "v0.99.98"
+[ "_$CAPTURED_STDOUT" = "_v0.99.98" ] \
+  || die "nvm_ls_cached 'v0.99.98' should find the bin-cached node version; got '$CAPTURED_STDOUT'"
+
+try nvm_ls_cached "iojs-v0.99.97"
+[ "_$CAPTURED_STDOUT" = "_iojs-v0.99.97" ] \
+  || die "nvm_ls_cached 'iojs-v0.99.97' should find the bin-cached io.js version; got '$CAPTURED_STDOUT'"
+
+try nvm_ls_cached "v0.99.96"
+[ "_$CAPTURED_STDOUT" = "_v0.99.96" ] \
+  || die "nvm_ls_cached 'v0.99.96' should find the src-cached node version; got '$CAPTURED_STDOUT'"
+
+try nvm_ls_cached "iojs-v0.99.95"
+[ "_$CAPTURED_STDOUT" = "_iojs-v0.99.95" ] \
+  || die "nvm_ls_cached 'iojs-v0.99.95' should find the src-cached io.js version; got '$CAPTURED_STDOUT'"
+
+# ... and nvm_offline_version should resolve them
+try nvm_offline_version "iojs-v0.99.95"
+[ "_$CAPTURED_STDOUT" = "_iojs-v0.99.95" ] \
+  || die "nvm_offline_version 'iojs-v0.99.95' should resolve the src-cached io.js version; got '$CAPTURED_STDOUT'"
+[ "_$CAPTURED_EXIT_CODE" = "_0" ] \
+  || die "nvm_offline_version 'iojs-v0.99.95' should exit 0; got '$CAPTURED_EXIT_CODE'"
+
 cleanup

test/fixtures/fake-source-tarball/Makefile

@@ -0,0 +1,15 @@
+include config.mk
+
+all: out/fake-bin
+
+out/fake-bin: VERSION
+	mkdir -p out
+	printf '#!/bin/sh\necho %s\n' "$$(cat VERSION)" > out/fake-bin
+	chmod +x out/fake-bin
+
+install: all
+	mkdir -p "$(PREFIX)/bin"
+	cp out/fake-bin "$(PREFIX)/bin/node"
+	cp out/fake-bin "$(PREFIX)/bin/iojs"
+
+.PHONY: all install

test/fixtures/fake-source-tarball/configure

@@ -0,0 +1,22 @@
+#!/bin/sh
+
+# a fake node/io.js `configure`, for source-install tests: real io.js (and
+# old node) can no longer be compiled on modern toolchains (python 2
+# `configure`, ancient V8), so source-install tests exercise nvm's entire
+# source pipeline against this tiny stand-in instead.
+
+PREFIX=''
+while [ $# -gt 0 ]; do
+  case "${1}" in
+    --prefix=*) PREFIX="${1#--prefix=}" ;;
+  esac
+  shift
+done
+
+if [ -z "${PREFIX}" ]; then
+  echo 'configure: a --prefix is required' >&2
+  exit 1
+fi
+
+printf 'PREFIX = %s\n' "${PREFIX}" > config.mk
+echo "configured with PREFIX=${PREFIX}"

test/installation_iojs/install from fake source

@@ -0,0 +1,44 @@
+#!/bin/sh
+
+\. ../common.sh
+
+die () { echo "$@" ; exit 1; }
+
+\. ../../nvm.sh
+
+set -ex
+
+NVM_TEST_VERSION='v3.99.9'
+NVM_PREFIXED_TEST_VERSION="iojs-${NVM_TEST_VERSION}"
+
+# Remove the stuff we're clobbering.
+nvm uninstall "${NVM_TEST_VERSION}" || echo 'not installed'
+
+# Exercise nvm's entire source-install pipeline - cache, extract, configure,
+# make, make install, activation - against a tiny fake source tree, seeded
+# into the download cache and installed with --offline. This runs everywhere,
+# including on toolchains where real io.js can not compile; `install from
+# source` covers the real compile, in CI's gcc:4.9 container job.
+SLUG="$(nvm_get_download_slug iojs source "${NVM_TEST_VERSION}")"
+COMPRESSION="$(nvm_get_artifact_compression "${NVM_TEST_VERSION}")"
+CACHE_DIR="$(nvm_cache_dir)/src/${SLUG}"
+STAGING="$(mktemp -d)"
+mkdir -p "${STAGING}/${SLUG}" "${CACHE_DIR}"
+cp ../fixtures/fake-source-tarball/configure ../fixtures/fake-source-tarball/Makefile "${STAGING}/${SLUG}/"
+chmod +x "${STAGING}/${SLUG}/configure"
+echo "${NVM_TEST_VERSION}" > "${STAGING}/${SLUG}/VERSION"
+if [ "${COMPRESSION}" = 'tar.xz' ]; then
+  (cd "${STAGING}" && tar -cJf "${CACHE_DIR}/${SLUG}.${COMPRESSION}" "${SLUG}")
+else
+  (cd "${STAGING}" && tar -czf "${CACHE_DIR}/${SLUG}.${COMPRESSION}" "${SLUG}")
+fi
+rm -rf "${STAGING}"
+
+# Install from source
+nvm install -s --offline "${NVM_PREFIXED_TEST_VERSION}" || die "'nvm install -s --offline ${NVM_PREFIXED_TEST_VERSION}' failed"
+
+# Check
+nvm_is_version_installed "${NVM_PREFIXED_TEST_VERSION}" || die 'version not installed'
+nvm run --silent "${NVM_PREFIXED_TEST_VERSION}" --version | grep "${NVM_TEST_VERSION}" || die "'nvm run ${NVM_PREFIXED_TEST_VERSION} --version | grep ${NVM_TEST_VERSION}' failed"
+
+rm -rf "${CACHE_DIR}"

test/installation_iojs/install from source

@@ -8,6 +8,23 @@ die () { echo "$@" ; exit 1; }
 
 set -ex
 
+# Compiling io.js requires a period toolchain: python 2 (its `configure`),
+# and gcc <= 5 (its bundled V8). CI compiles it for real in a gcc:4.9
+# container job; on modern toolchains, this can only be skipped
+# (`install from fake source` covers nvm's source pipeline everywhere).
+GCC_MAJOR="$(gcc -dumpversion 2>/dev/null | command cut -d. -f1)"
+if ! command -v python2 >/dev/null 2>&1 && ! python -V 2>&1 | command grep -q '^Python 2'; then
+  echo 'python 2 is not available; skipping the io.js source install'
+  exit 0
+fi
+case "${GCC_MAJOR}" in
+  '' | *[!0-9]*) echo 'gcc is not available; skipping the io.js source install'; exit 0 ;;
+esac
+if [ "${GCC_MAJOR}" -gt 5 ]; then
+  echo "gcc <= 5 is required to compile io.js, got ${GCC_MAJOR}; skipping the io.js source install"
+  exit 0
+fi
+
 NVM_TEST_VERSION='v3.3.1'
 NVM_PREFIXED_TEST_VERSION="iojs-${NVM_TEST_VERSION}"
 
@@ -19,4 +36,4 @@ nvm uninstall "${NVM_TEST_VERSION}" || echo 'not installed'
 
 # Check
 nvm_is_version_installed "${NVM_PREFIXED_TEST_VERSION}" || die 'version not installed'
-nvm run "${NVM_PREFIXED_TEST_VERSION}" --version | grep "${NVM_TEST_VERSION}" || "'nvm run ${NVM_PREFIXED_TEST_VERSION} --version | grep ${NVM_TEST_VERSION}' failed"
+nvm run --silent "${NVM_PREFIXED_TEST_VERSION}" --version | grep "${NVM_TEST_VERSION}" || die "'nvm run ${NVM_PREFIXED_TEST_VERSION} --version | grep ${NVM_TEST_VERSION}' failed"

test/installation_iojs/install version specified in .nvmrc from fake source

@@ -0,0 +1,45 @@
+#!/bin/sh
+
+die () { echo "$@" ; exit 1; }
+
+\. ../../nvm.sh
+
+set -ex
+
+NVM_TEST_VERSION='v3.99.8'
+NVM_PREFIXED_TEST_VERSION="iojs-${NVM_TEST_VERSION}"
+
+# Remove the stuff we're clobbering.
+nvm uninstall "${NVM_TEST_VERSION}" || echo 'not installed'
+
+# Exercise nvm's source-install pipeline against a tiny fake source tree,
+# seeded into the download cache and installed with --offline (see `install
+# from fake source`). This runs everywhere, including on toolchains where
+# real io.js can not compile; `install version specified in .nvmrc from
+# source` covers the real compile, in CI's gcc:4.9 container job.
+SLUG="$(nvm_get_download_slug iojs source "${NVM_TEST_VERSION}")"
+COMPRESSION="$(nvm_get_artifact_compression "${NVM_TEST_VERSION}")"
+CACHE_DIR="$(nvm_cache_dir)/src/${SLUG}"
+STAGING="$(mktemp -d)"
+mkdir -p "${STAGING}/${SLUG}" "${CACHE_DIR}"
+cp ../fixtures/fake-source-tarball/configure ../fixtures/fake-source-tarball/Makefile "${STAGING}/${SLUG}/"
+chmod +x "${STAGING}/${SLUG}/configure"
+echo "${NVM_TEST_VERSION}" > "${STAGING}/${SLUG}/VERSION"
+if [ "${COMPRESSION}" = 'tar.xz' ]; then
+  (cd "${STAGING}" && tar -cJf "${CACHE_DIR}/${SLUG}.${COMPRESSION}" "${SLUG}")
+else
+  (cd "${STAGING}" && tar -czf "${CACHE_DIR}/${SLUG}.${COMPRESSION}" "${SLUG}")
+fi
+rm -rf "${STAGING}"
+
+# Install from source, with the version specified in .nvmrc
+echo "${NVM_PREFIXED_TEST_VERSION}" > .nvmrc
+
+nvm install -s --offline || die "'nvm install -s --offline' failed"
+
+# Check
+nvm_is_version_installed "${NVM_PREFIXED_TEST_VERSION}" || die 'version is not installed'
+nvm run --silent "${NVM_PREFIXED_TEST_VERSION}" --version | grep "${NVM_TEST_VERSION}" \
+  || die "'nvm run ${NVM_PREFIXED_TEST_VERSION} --version | grep ${NVM_TEST_VERSION}' failed"
+
+rm -rf "${CACHE_DIR}"

test/installation_iojs/install version specified in .nvmrc from source

@@ -6,18 +6,36 @@ die () { echo "$@" ; exit 1; }
 
 set -ex
 
+# Compiling io.js requires a period toolchain: python 2 (its `configure`),
+# and gcc <= 5 (its bundled V8). CI compiles it for real in a gcc:4.9
+# container job; on modern toolchains, this can only be skipped
+# (`install version specified in .nvmrc from fake source` covers nvm's
+# source pipeline everywhere).
+GCC_MAJOR="$(gcc -dumpversion 2>/dev/null | command cut -d. -f1)"
+if ! command -v python2 >/dev/null 2>&1 && ! python -V 2>&1 | command grep -q '^Python 2'; then
+  echo 'python 2 is not available; skipping the io.js source install'
+  exit 0
+fi
+case "${GCC_MAJOR}" in
+  '' | *[!0-9]*) echo 'gcc is not available; skipping the io.js source install'; exit 0 ;;
+esac
+if [ "${GCC_MAJOR}" -gt 5 ]; then
+  echo "gcc <= 5 is required to compile io.js, got ${GCC_MAJOR}; skipping the io.js source install"
+  exit 0
+fi
+
 NVM_TEST_VERSION='v3.3.0'
 NVM_PREFIXED_TEST_VERSION="iojs-${NVM_TEST_VERSION}"
 
 # Remove the stuff we're clobbering.
 nvm uninstall "${NVM_TEST_VERSION}" || echo 'not installed'
 
-# Install from binary
+# Install from source, with the version specified in .nvmrc
 echo "${NVM_PREFIXED_TEST_VERSION}" > .nvmrc
 
-nvm install -s || "'nvm install -s' failed"
+nvm install -s || die "'nvm install -s' failed"
 
 # Check
 nvm_is_version_installed "${NVM_PREFIXED_TEST_VERSION}" || die 'version is not installed'
-nvm run "${NVM_PREFIXED_TEST_VERSION}" --version | grep "${NVM_TEST_VERSION}" \
+nvm run --silent "${NVM_PREFIXED_TEST_VERSION}" --version | grep "${NVM_TEST_VERSION}" \
   || die "'nvm run ${NVM_PREFIXED_TEST_VERSION} --version | grep ${NVM_TEST_VERSION}' failed"

test/installation_iojs/teardown_dir

@@ -6,6 +6,8 @@ nvm uninstall iojs-v1.0.0
 nvm uninstall iojs-v1.0.3
 nvm uninstall iojs-v3.3.0
 nvm uninstall iojs-v3.3.1
+nvm uninstall iojs-v3.99.8
+nvm uninstall iojs-v3.99.9
 
 if [ -f ".nvmrc" ]; then
   rm .nvmrc

test/slow/nvm exec/Running 'nvm exec' with help should not parse

@@ -6,4 +6,6 @@ die () { echo "$@" ; exit 1; }
 
 nvm use 0.10
 
-nvm exec stable -- node --help | grep 'Usage: node [options]' || die "Help menu should have been displayed for node and not nvm"
+# note: in a BRE, `[options]` is a bracket expression, so the literal `[options]`
+# in node's help output could never match; match the unbracketed prefix instead
+nvm exec stable -- node --help | grep 'Usage: node' || die "Help menu should have been displayed for node and not nvm"

test/slow/nvm uninstall/Running 'nvm uninstall' with incorrect file permissions fails nicely

@@ -1,30 +1,51 @@
 #!/bin/sh
 
-die () { echo "$@" ; exit 1; }
+die () { echo "$@" ; cleanup ; exit 1; }
 
 # Source nvm
 \. ../../../nvm.sh
 
-# Version to install/uninstall
-NVM_TEST_VERSION=5.10.1
+\. ../../common.sh
 
-# Make sure it's not already here
-[ -e ../../../$NVM_TEST_VERSION ] && rm -R ../../../$NVM_TEST_VERSION
+NVM_TEST_VERSION=v5.99.99
 
-# Install it
-nvm install $NVM_TEST_VERSION
+cleanup() {
+  VERSION_PATH="${VERSION_PATH-}"
+  if [ -n "${VERSION_PATH}" ] && [ -d "${VERSION_PATH}" ]; then
+    sudo -n rm -f "${VERSION_PATH}/lib/root-owned-file" 2>/dev/null
+    rm -rf "${VERSION_PATH}"
+  fi
+}
 
-# Make sure it installed
-nvm ls | grep "$NVM_TEST_VERSION" || die "Failed to install node"
+# The permissions check only trips on files that are neither writable nor
+# self-owned, and creating one requires another user: skip where passwordless
+# sudo is unavailable; CI always has it.
+if ! sudo -n true 2>/dev/null; then
+  echo 'passwordless sudo is not available, skipping'
+  exit 0
+fi
 
-# Install global module as root
-npm_path=$(which npm)
-sudo -n "$npm_path" install jspm@'<2' -g || die 'either sudo failed, or `npm install jspm -g` failed`'
+# Install a fake version to uninstall
+make_fake_node "${NVM_TEST_VERSION}" || die 'unable to make fake node'
+VERSION_PATH="$(nvm_version_path "${NVM_TEST_VERSION}")"
 
-# Switch to another version so we can uninstall
-nvm use 0.12.7
+# Make part of the installation folder unwritable, and not self-owned
+mkdir -p "${VERSION_PATH}/lib"
+sudo -n touch "${VERSION_PATH}/lib/root-owned-file" || die 'sudo touch failed'
+sudo -n chmod 444 "${VERSION_PATH}/lib/root-owned-file" || die 'sudo chmod failed'
+
+# Make sure the version to uninstall is not the active one
+nvm deactivate >/dev/null 2>&1 || true
 
 # Attempt to uninstall it
-RETURN_MESSAGE="$(nvm uninstall $NVM_TEST_VERSION 2>&1)"
+RETURN_MESSAGE="$(nvm uninstall "${NVM_TEST_VERSION}" 2>&1)"
 CHECK_FOR="Cannot uninstall, incorrect permissions on installation folder"
-test "${RETURN_MESSAGE#*$CHECK_FOR}" != "$RETURN_MESSAGE" || die "Failed to show error message"
+case "${RETURN_MESSAGE}" in
+  *"${CHECK_FOR}"*) ;;
+  *) die "Failed to show error message; got: ${RETURN_MESSAGE}" ;;
+esac
+
+# ... and the version must not have been removed
+nvm_is_version_installed "${NVM_TEST_VERSION}" || die 'version was uninstalled despite the permissions error'
+
+cleanup