tools/devshell/tests/fx-internal/reentry_test

#!/bin/bash
# Copyright 2021 The Fuchsia Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

### Test the fx-reentry script
BT_FILE_DEPS=(
  "scripts/fx"
  "scripts/fx-reentry"
  "tools/devshell/lib/fx-cmd-locator.sh"
  "tools/devshell/lib/fx-optional-features.sh"
  "tools/devshell/lib/vars.sh"
  "tools/devshell/lib/platform.sh"
)

BT_SET_UP() {
  base_dir="${BT_TEMP_DIR}"
  source "${BT_TEMP_DIR}/tools/devshell/tests/lib/fuchsia-mock.sh"
  fx="$(btf::setup_fx)"
}

TEST_fx-reentry() {
  local d="${base_dir}/tools/devshell"
  mkdir -p "$d"
  cat >"${d}/run_reentry" <<'EOF'
#!/bin/bash
${FUCHSIA_DIR}/scripts/fx-reentry "$@"
EOF
  cat >"${d}/simple_echo" <<'EOF'
#!/bin/bash
echo "$@"
EOF
  chmod u+x "${d}/run_reentry" "${d}/simple_echo"

  BT_EXPECT "${fx}" run_reentry simple_echo "here" >/dev/null
  BT_EXPECT_EQ "$(${fx} run_reentry simple_echo "here")" "here"
  BT_EXPECT_FAIL "${base_dir}/scripts/fx-reentry" simple_echo "here" > /dev/null 2>&1
}

BT_RUN_TESTS "$@"