test alpine nvm_get_arch

test/fast/Unit tests/nvm_get_arch_unofficial

@@ -0,0 +1,96 @@
+#!/bin/sh
+
+# Save the PATH as it was when the test started to restore it when it finishes
+ORIG_PATH=$PATH
+
+cleanup() {
+  # Restore the PATH as it was when the test started
+  export PATH=$ORIG_PATH
+  rm -rf $TMP_DIR
+}
+
+die() {
+  cleanup
+  echo "$@"
+  exit 1
+}
+
+. ../../../nvm.sh
+
+# Directory where mocked binaries used by nvm_get_arch for each OS/arch are
+# located
+MOCKS_DIR=`pwd`/../../mocks
+# Sets the PATH for these tests to include the symlinks to the mocked
+# binaries
+export PATH=.:${PATH}
+
+TMP_DIR=$(mktemp -d)
+CHROOT_WITH_ALPINE="$TMP_DIR/with_alpine"
+CHROOT_WITHOUT_ALPINE="$TMP_DIR/without_alpine"
+
+setup_chroot() {
+  local chroot_dir=$1
+
+  # Directories
+  mkdir -p "$chroot_dir"{/etc,/bin,/usr/bin,/lib64,/dev}
+
+  # Files and binaries
+  cp ../../../nvm.sh "$chroot_dir/"
+  cp /bin/sh /usr/bin/dirname "$chroot_dir/bin/"
+  [ "$chroot_dir" = "$CHROOT_WITH_ALPINE" ] && touch "$chroot_dir/etc/alpine-release"
+
+  # Libraries
+  for binary in /bin/sh /usr/bin/dirname; do
+    for lib in $(ldd $binary | awk '{print $3}' | grep "^/"); do
+      dir=$(dirname "$lib")
+      mkdir -p "$chroot_dir$dir"
+      cp "$lib" "$chroot_dir$dir/"
+    done
+  done
+
+  # Dynamic linker
+  cp /lib64/ld-linux-x86-64.so.2 "$chroot_dir/lib64/"
+
+  # /dev/null
+  sudo mknod "$chroot_dir/dev/null" c 1 3
+}
+
+setup_chroot "$CHROOT_WITH_ALPINE"
+setup_chroot "$CHROOT_WITHOUT_ALPINE"
+
+# Run tests in chroot environments
+ARCH_WITH_ALPINE=$(sudo chroot "$CHROOT_WITH_ALPINE" /bin/sh -c ". ./nvm.sh && nvm_get_arch")
+[ "$ARCH_WITH_ALPINE" = "musl-x64" ] || die "Expected musl-x64 for alpine environment but got $ARCH_WITH_ALPINE"
+
+ARCH_WITHOUT_ALPINE=$(sudo chroot "$CHROOT_WITHOUT_ALPINE" /bin/sh -c ". ./nvm.sh && nvm_get_arch")
+[ "$ARCH_WITHOUT_ALPINE" != "musl-x64" ] || die "Did not expect musl-x64 for non-alpine environment"
+
+# Run tests for nvm ls-remote
+MOCKS_DIR="$PWD/mocks"
+
+test_default_ls_remote() {
+  mock_response="N/A"
+  result=$(NVM_NODEJS_ORG_MIRROR="http://nonexistent-url" nvm ls-remote 18)
+  if [ "$result" = "$mock_response" ]; then
+    die "Test failed: Expected '$mock_response' for but got '$result'"
+  else
+    echo "Test passed"
+  fi
+}
+
+test_unofficial_mirror_ls_remote() {
+  mock_response="v18.18.0   (LTS: Hydrogen)"
+  result=$(NVM_NODEJS_ORG_MIRROR="https://unofficial-builds.nodejs.org/download/release" nvm ls-remote 18.18.0 | sed -e 's/^[[:space:]]*//')
+  result=$(echo "$result" | sed 's/\x1b\[[0-9;]*m//g')
+
+  if [ "$result" = "$mock_response" ]; then
+    echo "Test passed"
+  else
+    die "Test failed: Expected '$mock_response' but got '$result'"
+  fi
+}
+
+test_default_ls_remote
+test_unofficial_mirror_ls_remote
+
+cleanup