#!/bin/bash

# Shared setup for the bats tests. Each test gets its own HOME and a bin dir at
# the front of PATH where it can put fake versions of pacman, yay, sudo, etc.

# Used by the .bats files that load this one
# shellcheck disable=SC2034
REPO="$(cd "$BATS_TEST_DIRNAME/.." && pwd)"

common_setup() {
  export HOME="$BATS_TEST_TMPDIR/home"
  export STUB_BIN="$BATS_TEST_TMPDIR/bin"
  export STUB_LOG="$BATS_TEST_TMPDIR/stub.log"
  mkdir -p "$HOME" "$STUB_BIN"
  : > "$STUB_LOG"
  export PATH="$STUB_BIN:$PATH"
  unset COREDESKTOP
  # Set when the tests run inside a smoketest (a pre-push hook's checks, say),
  # where they would point the smoketest tests at the real VM
  unset VM_GIT_SSH VM_GIT_URL SMOKETEST_REPO SMOKETEST_RESULTS SMOKETEST_SHARED \
    SMOKETEST_REF SMOKETEST_VM_DIR IMAGE_REF VARIANT
}

# A test file that needs more setup defines its own setup that calls this first
setup() {
  common_setup
}

# stub NAME [BODY]: put a fake NAME on PATH that appends "NAME args..." to
# $STUB_LOG and then runs BODY, a bash snippet that sees the args as "$@"
stub() {
  local name="$1" body="${2:-}"
  cat > "$STUB_BIN/$name" << EOF
#!/bin/bash
echo "$name \$*" >> "\$STUB_LOG"
$body
EOF
  chmod +x "$STUB_BIN/$name"
}

# called NAME ARGS...: true if the stub log has exactly the line "NAME ARGS..."
called() {
  grep -qxF "$*" "$STUB_LOG"
}

# not_called NAME: true if the stub NAME never ran
not_called() {
  ! grep -q "^$1 " "$STUB_LOG"
}

# uncalled NAME ARGS...: the opposite of called. (A bare "! called ..." would
# not fail the test: bats, like set -e, ignores the status of a ! command.)
uncalled() {
  ! called "$@"
}