#!/bin/sh
set -eu

. tests/lib.sh


test_unsupported_flags() {
	testing 'unsupported flags'

	N="$LINENO"
	OUT="$(mkstemp)"
	ERR="$(mkstemp)"
	trap 'rm -f "$OUT" "$ERR"' EXIT
	STATUS=0
	./uuid.bin -x 1>"$OUT" 2>"$ERR" || STATUS=$?
	assert_status 2
	assert_empty_stdout
	assert_grep_stderr '^Usage:$'
	rm "$OUT" "$ERR"

	test_ok
}

test_flag_without_required_arguments() {
	testing 'flag without required arguments'

	N="$LINENO"
	OUT="$(mkstemp)"
	ERR="$(mkstemp)"
	trap 'rm -f "$OUT" "$ERR"' EXIT
	STATUS=0
	./uuid.bin -v 1>"$OUT" 2>"$ERR" || STATUS=$?
	assert_status 2
	assert_empty_stdout
	assert_grep_stderr '^Usage:$'
	rm "$OUT" "$ERR"

	test_ok
}

test_flag_with_bad_argument_value() {
	testing 'flag without required arguments'

	N="$LINENO"
	OUT="$(mkstemp)"
	ERR="$(mkstemp)"
	trap 'rm -f "$OUT" "$ERR"' EXIT
	STATUS=0
	./uuid.bin -v 1 1>"$OUT" 2>"$ERR" || STATUS=$?
	assert_status 2
	assert_empty_stdout
	assert_grep_stderr '^Usage:$'
	rm "$OUT" "$ERR"

	test_ok
}

test_generates_uuid_with_custom_version() {
	testing 'UUID with custom version'

	N="$LINENO"
	OUT="$(mkstemp)"
	ERR="$(mkstemp)"
	trap 'rm -f "$OUT" "$ERR"' EXIT
	STATUS=0
	./uuid.bin -v 4 1>"$OUT" 2>"$ERR" || STATUS=$?
	assert_status 0
	assert_grep_stdout '^.{,14}4'
	assert_empty_stderr
	rm "$OUT" "$ERR"

	N="$LINENO"
	OUT="$(mkstemp)"
	ERR="$(mkstemp)"
	trap 'rm -f "$OUT" "$ERR"' EXIT
	STATUS=0
	./uuid.bin -v 7 1>"$OUT" 2>"$ERR" || STATUS=$?
	assert_status 0
	assert_grep_stdout '^.{,14}7'
	assert_empty_stderr
	rm "$OUT" "$ERR"

	test_ok
}

test_generates_uuid_with_0_args() {
	testing 'generates UUID with 0 arguments'

	N="$LINENO"
	OUT="$(mkstemp)"
	ERR="$(mkstemp)"
	trap 'rm -f "$OUT" "$ERR"' EXIT
	STATUS=0
	./uuid.bin 1>"$OUT" 2>"$ERR" || STATUS=$?
	assert_status 0
	assert_empty_stderr
	rm "$OUT" "$ERR"

	test_ok
}

test_checks_string_with_1_arg() {
	testing 'checks string with 1 arg'

	N="$LINENO"
	OUT="$(mkstemp)"
	ERR="$(mkstemp)"
	trap 'rm -f "$OUT" "$ERR"' EXIT
	STATUS=0
	ID='cac94e13-41fa-40c4-bd46-5b7b3b46c09e'
	./uuid.bin "$ID" 1>"$OUT" 2>"$ERR" || STATUS=$?
	assert_status 0
	assert_empty_stdout
	assert_empty_stderr
	rm "$OUT" "$ERR"

	N="$LINENO"
	OUT="$(mkstemp)"
	ERR="$(mkstemp)"
	trap 'rm -f "$OUT" "$ERR"' EXIT
	STATUS=0
	./uuid.bin 'bad-uuid-string' 1>"$OUT" 2>"$ERR" || STATUS=$?
	assert_status 3
	assert_empty_stdout
	assert_stderr "uuid: str isn't of the correct length"
	rm "$OUT" "$ERR"

	test_ok
}

test_checks_string_with_1_arg_ignores_options() {
	testing 'checks string with 1 arg ignores options'

	N="$LINENO"
	OUT="$(mkstemp)"
	ERR="$(mkstemp)"
	trap 'rm -f "$OUT" "$ERR"' EXIT
	STATUS=0
	ID='cac94e13-41fa-40c4-bd46-5b7b3b46c09e'
	ID='76600ea2-0282-4b38-9bc9-dd69125445f3'
	./uuid.bin -v 4 "$ID" 1>"$OUT" 2>"$ERR" || STATUS=$?
	assert_status 0
	assert_empty_stdout
	assert_empty_stderr
	rm "$OUT" "$ERR"

	test_ok
}



test_unsupported_flags
test_flag_without_required_arguments
test_generates_uuid_with_0_args
test_flag_with_bad_argument_value
test_generates_uuid_with_custom_version
test_checks_string_with_1_arg
test_checks_string_with_1_arg_ignores_options