#!/usr/bin/env bats

load 'test_helper'
fixtures 'exist'

setup () {
 touch ${TEST_FIXTURE_ROOT}/dir/file_with_text ${TEST_FIXTURE_ROOT}/dir/same_file_with_text
}
teardown () {
    rm -f ${TEST_FIXTURE_ROOT}/dir/file_with_text ${TEST_FIXTURE_ROOT}/dir/same_file_with_text
}

# Correctness
@test 'assert_files_equal() <file>: returns 0 if <file1> and <file2> are the same' {
  local -r file1="${TEST_FIXTURE_ROOT}/dir/file_with_text"
  local -r file2="${TEST_FIXTURE_ROOT}/dir/same_file_with_text"
  run assert_files_equal "$file1" "$file2"
  [ "$status" -eq 0 ]
  [ "${#lines[@]}" -eq 0 ]
}


@test 'assert_files_equal() <file>: returns 1 if <file1> and <file2> are not the same' {
  local -r file1="${TEST_FIXTURE_ROOT}/dir/same_file_with_text"
  local -r file2="${TEST_FIXTURE_ROOT}/dir/file"
  run assert_files_equal "$file1" "$file2"

  [ "$status" -eq 1 ]
  [ "${#lines[@]}" -eq 4 ]
  [ "${lines[0]}" == '-- files are not the same --' ]
  [ "${lines[1]}" == "path : $file1" ]
  [ "${lines[2]}" == "path : $file2" ]
  [ "${lines[3]}" == "--" ]
}

# Transforming path
@test 'assert_files_equal() <file>: used <file2> as a directory' {
  local -r file2="${TEST_FIXTURE_ROOT}/dir/same_file_with_text"
  local -r file1="${TEST_FIXTURE_ROOT}/dir"
  run assert_files_equal "$file1" "$file2"
  [ "$status" -eq 1 ]
  [ "${#lines[@]}" -eq 5 ]
  REGEX="cmp: ${TEST_FIXTURE_ROOT}/dir: (Is a directory|I/O error)"
  [[ "${lines[0]}" =~ $REGEX ]] || false
  [ "${lines[1]}" == "-- files are not the same --" ]
  [ "${lines[2]}" == "path : $file1" ]
  [ "${lines[3]}" == "path : $file2" ]
  [ "${lines[4]}" == "--" ]
}

@test 'assert_files_equal() <file>: replace prefix of displayed path' {
  local -r file2="${TEST_FIXTURE_ROOT}/dir/same_file_with_text"
  local -r file1="${TEST_FIXTURE_ROOT}/dir/file"
  local -r BATSLIB_FILE_PATH_REM="#${TEST_FIXTURE_ROOT}"
  local -r BATSLIB_FILE_PATH_ADD='..'
  run assert_files_equal "$file1" "$file2"
  [ "$status" -eq 1 ]
  [ "${#lines[@]}" -eq 4 ]
  [ "${lines[0]}" == '-- files are not the same --' ]
  [ "${lines[1]}" == "path : ../dir/file" ]
  [ "${lines[2]}" == "path : ../dir/same_file_with_text" ]
  [ "${lines[3]}" == "--" ]
}

@test 'assert_files_equal() <file>: replace suffix of displayed path' {
  local -r file2="${TEST_FIXTURE_ROOT}/dir/same_file_with_text"
  local -r file1="${TEST_FIXTURE_ROOT}/same_file_with_text"
  local -r BATSLIB_FILE_PATH_REM='%same_file_with_text'
  local -r BATSLIB_FILE_PATH_ADD='..'
  run assert_files_equal "$file1" "$file2"
  [ "$status" -eq 1 ]
  [ "${#lines[@]}" -eq 4 ]
  [ "${lines[0]}" == '-- files are not the same --' ]
  [ "${lines[1]}" == "path : ${TEST_FIXTURE_ROOT}/.." ]
  [ "${lines[2]}" == "path : ${TEST_FIXTURE_ROOT}/dir/.." ]
  [ "${lines[3]}" == "--" ]
}

@test 'assert_files_equal() <file>: replace infix of displayed path' {
  local -r file2="${TEST_FIXTURE_ROOT}/dir/same_file_with_text"
  local -r file1="${TEST_FIXTURE_ROOT}/dir/file"
  local -r BATSLIB_FILE_PATH_REM='dir'
  local -r BATSLIB_FILE_PATH_ADD='..'
  run assert_files_equal "$file1" "$file2"
  [ "$status" -eq 1 ]
  [ "${#lines[@]}" -eq 4 ]
  [ "${lines[0]}" == '-- files are not the same --' ]
  [ "${lines[1]}" == "path : ${TEST_FIXTURE_ROOT}/../file" ]
  [ "${lines[2]}" == "path : ${TEST_FIXTURE_ROOT}/../same_file_with_text" ]
  [ "${lines[3]}" == "--" ]
}