#!/usr/bin/env bash

set -e

function usage {
  cat <<-EOF
USAGE

  $0  [-dgGhv] [-f focus-string] [-s seed]

OPTIONS

  -h  Print this message

  -a  Compile C code with the Clang static analyzer

  -l  Run only the corpus tests for the given language

  -e  Run only the corpus tests whose name contain the given string

  -t  Run only the given trial number of randomized test

  -s  Set the seed used to control random behavior

  -d  Print parsing log to stderr

  -D  Generate an SVG graph of parsing logs

  -g  Run the tests with a debugger

EOF
}

export TREE_SITTER_TEST=1
export RUST_TEST_THREADS=1
export RUST_BACKTRACE=full

mode=normal

while getopts "dDghl:e:s:t:" option; do
  case ${option} in
    h)
      usage
      exit
      ;;
    l)
      export TREE_SITTER_TEST_LANGUAGE_FILTER=${OPTARG}
      ;;
    e)
      export TREE_SITTER_TEST_EXAMPLE_FILTER=${OPTARG}
      ;;
    t)
      export TREE_SITTER_TEST_TRIAL_FILTER=${OPTARG}
      ;;
    s)
      export TREE_SITTER_TEST_SEED=${OPTARG}
      ;;
    d)
      export TREE_SITTER_TEST_ENABLE_LOG=1
      ;;
    D)
      export TREE_SITTER_TEST_ENABLE_LOG_GRAPHS=1
      ;;
    g)
      mode=debug
      ;;
  esac
done

shift $(expr $OPTIND - 1 )

if [[ -n $TREE_SITTER_TEST_LANGUAGE_FILTER || -n $TREE_SITTER_TEST_EXAMPLE_FILTER || -n $TREE_SITTER_TEST_TRIAL_FILTER ]]; then
  top_level_filter=corpus
else
  top_level_filter=$1
fi

if [[ "${mode}" == "debug" ]]; then
  test_binary=$(cargo test --no-run --message-format=json 2> /dev/null | jq -rs '.[-1].filenames[0]')
  lldb "${test_binary}" -- $top_level_filter
else
  cargo test --jobs 1 $top_level_filter -- --nocapture
fi