bashunit/src/assert_dates.sh at 6c8ebe1522a57c836671bcac0dbee40460f5507b · TypedDevs/bashunit · GitHub

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#!/usr/bin/env bash

function bashunit::date::to_epoch() {
  local input="$1"

  # Already epoch seconds (all digits)
  case "$input" in
  *[!0-9]*) ;; # contains non-digits, continue to ISO parsing
  *)
    echo "$input"
    return 0
    ;;
  esac

  # Format conversion (GNU vs BSD date)
  local epoch
  # Try GNU date first (-d flag)
  epoch=$(date -d "$input" +%s 2>/dev/null) && {
    echo "$epoch"
    return 0
  }
  # Try BSD date (-j -f flag) with ISO 8601 datetime + timezone offset
  epoch=$(date -j -f "%Y-%m-%dT%H:%M:%S%z" "$input" +%s 2>/dev/null) && {
    echo "$epoch"
    return 0
  }
  # Try BSD date with ISO 8601 datetime format
  epoch=$(date -j -f "%Y-%m-%dT%H:%M:%S" "$input" +%s 2>/dev/null) && {
    echo "$epoch"
    return 0
  }
  # Try BSD date with space-separated datetime format
  epoch=$(date -j -f "%Y-%m-%d %H:%M:%S" "$input" +%s 2>/dev/null) && {
    echo "$epoch"
    return 0
  }
  # Try BSD date with date-only format
  epoch=$(date -j -f "%Y-%m-%d" "$input" +%s 2>/dev/null) && {
    echo "$epoch"
    return 0
  }

  # Unsupported format
  echo "$input"
  return 1
}

function assert_date_equals() {
  bashunit::assert::should_skip && return 0

  local expected
  expected="$(bashunit::date::to_epoch "$1")"
  local actual
  actual="$(bashunit::date::to_epoch "$2")"

  if [[ "$actual" -ne "$expected" ]]; then
    local test_fn
    test_fn="$(bashunit::helper::find_test_function_name)"
    local label
    label="$(bashunit::helper::normalize_test_function_name "$test_fn")"
    bashunit::assert::mark_failed
    bashunit::console_results::print_failed_test "${label}" "${actual}" "to be equal to" "${expected}"
    return
  fi

  bashunit::state::add_assertions_passed
}

function assert_date_before() {
  bashunit::assert::should_skip && return 0

  local expected
  expected="$(bashunit::date::to_epoch "$1")"
  local actual
  actual="$(bashunit::date::to_epoch "$2")"

  if ! [[ "$actual" -lt "$expected" ]]; then
    local test_fn
    test_fn="$(bashunit::helper::find_test_function_name)"
    local label
    label="$(bashunit::helper::normalize_test_function_name "$test_fn")"
    bashunit::assert::mark_failed
    bashunit::console_results::print_failed_test "${label}" "${actual}" "to be before" "${expected}"
    return
  fi

  bashunit::state::add_assertions_passed
}

function assert_date_after() {
  bashunit::assert::should_skip && return 0

  local expected
  expected="$(bashunit::date::to_epoch "$1")"
  local actual
  actual="$(bashunit::date::to_epoch "$2")"

  if ! [[ "$actual" -gt "$expected" ]]; then
    local test_fn
    test_fn="$(bashunit::helper::find_test_function_name)"
    local label
    label="$(bashunit::helper::normalize_test_function_name "$test_fn")"
    bashunit::assert::mark_failed
    bashunit::console_results::print_failed_test "${label}" "${actual}" "to be after" "${expected}"
    return
  fi

  bashunit::state::add_assertions_passed
}

function assert_date_within_range() {
  bashunit::assert::should_skip && return 0

  local from
  from="$(bashunit::date::to_epoch "$1")"
  local to
  to="$(bashunit::date::to_epoch "$2")"
  local actual
  actual="$(bashunit::date::to_epoch "$3")"

  if [[ "$actual" -lt "$from" ]] || [[ "$actual" -gt "$to" ]]; then
    local test_fn
    test_fn="$(bashunit::helper::find_test_function_name)"
    local label
    label="$(bashunit::helper::normalize_test_function_name "$test_fn")"
    bashunit::assert::mark_failed
    bashunit::console_results::print_failed_test "${label}" "${actual}" "to be between" "${from} and ${to}"
    return
  fi

  bashunit::state::add_assertions_passed
}

function assert_date_within_delta() {
  bashunit::assert::should_skip && return 0

  local expected
  expected="$(bashunit::date::to_epoch "$1")"
  local actual
  actual="$(bashunit::date::to_epoch "$2")"
  local delta="$3"

  local diff=$((actual - expected))
  if [[ "$diff" -lt 0 ]]; then
    diff=$((-diff))
  fi

  if [[ "$diff" -gt "$delta" ]]; then
    local test_fn
    test_fn="$(bashunit::helper::find_test_function_name)"
    local label
    label="$(bashunit::helper::normalize_test_function_name "$test_fn")"
    bashunit::assert::mark_failed
    bashunit::console_results::print_failed_test "${label}" "${actual}" "to be within" "${delta} seconds of ${expected}"
    return
  fi

  bashunit::state::add_assertions_passed
}