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#!/bin/sh
set -u

. aux/tests-lib.sh

export PATH="$PWD/tests:$PATH"

test_help_flags() {
	testing 'help flags'

	OUT="$(mktemp)"
	ERR="$(mktemp)"
	./git-permalink -h 1>"$OUT" 2>"$ERR"
	STATUS=$?
	assert_status 0
	assert_empty_stderr
	assert_fgrep_stdout 'Usage'
	assert_fgrep_stdout 'Options'

	OUT="$(mktemp)"
	ERR="$(mktemp)"
	./git-permalink --help 1>"$OUT" 2>"$ERR"
	STATUS=$?
	assert_status 0
	assert_empty_stderr
	assert_usage "$OUT"
	assert_fgrep_stdout 'Usage'
	assert_fgrep_stdout 'Options'

	OUT="$(mktemp)"
	ERR="$(mktemp)"
	./git-permalink --something somethign -h 1>"$OUT" 2>"$ERR"
	STATUS=$?
	assert_status 0
	assert_empty_stderr
	assert_usage "$OUT"
	assert_fgrep_stdout 'Usage'
	assert_fgrep_stdout 'Options'

	OUT="$(mktemp)"
	ERR="$(mktemp)"
	./git-permalink --help more things 1>"$OUT" 2>"$ERR"
	STATUS=$?
	assert_status 0
	assert_empty_stderr
	assert_usage "$OUT"
	assert_fgrep_stdout 'Usage'
	assert_fgrep_stdout 'Options'

	test_ok
}

test_version_flags() {
	testing 'version flags'
	REGEX='^git-permalink-[0-9\.]+ [0-9-]+$'

	OUT="$(mktemp)"
	ERR="$(mktemp)"
	./git-permalink -V 1>"$OUT" 2>"$ERR"
	STATUS=$?
	assert_status 0
	assert_empty_stderr
	assert_grep_stdout "$REGEX"

	OUT="$(mktemp)"
	ERR="$(mktemp)"
	./git-permalink --version 1>"$OUT" 2>"$ERR"
	STATUS=$?
	assert_status 0
	assert_empty_stderr
	assert_grep_stdout "$REGEX"

	OUT="$(mktemp)"
	ERR="$(mktemp)"
	./git-permalink --abc xyz -V 1>"$OUT" 2>"$ERR"
	STATUS=$?
	assert_status 0
	assert_empty_stderr
	assert_grep_stdout "$REGEX"

	OUT="$(mktemp)"
	ERR="$(mktemp)"
	./git-permalink --version things again 1>"$OUT" 2>"$ERR"
	STATUS=$?
	assert_status 0
	assert_empty_stderr
	assert_grep_stdout "$REGEX"

	test_ok
}

test_help_flags
test_version_flags