#!/bin/sh

# Test a command for presence and ability to output the sha1 hash of a file.
check_hashcmd() {
	which $1 &>/dev/null &&
	$1 </dev/null 2>/dev/null |
	awk '{if ($1 != "da39a3ee5e6b4b0d3255bfef95601890afd80709") { exit 1; }}'
}

# Test some common commands to find the correct one for the system being tested on.
if check_hashcmd sha1sum; then
	sha1sum=sha1sum
elif check_hashcmd sha1; then
	sha1sum=sha1
elif check_hashcmd shasum; then
	sha1sum=shasum
else
	echo "No hashing commands found."
	exit 1
fi

test_lang() {
	if test "$#" -eq 3; then
		TEST_LANG=$1
		TEST_NAME=$1
		EXPECTED=$2
		TEST_TEXT=$3
	else
		TEST_LANG=$1
		TEST_NAME=$2
		EXPECTED=$3
		TEST_TEXT=$4
	fi

	echo "testing ${TEST_NAME}"
	ESPEAK_DATA_PATH=`pwd` LD_LIBRARY_PATH=src:${LD_LIBRARY_PATH} \
		src/espeak-ng --stdout -v ${TEST_LANG} "${TEST_TEXT}" | \
		$sha1sum | awk '{ print $1 }' > actual.txt
	echo "${EXPECTED}" > expected.txt
	diff expected.txt actual.txt || exit 1
}

# To add a new test:
# 1.  add a test line for the language with an appropriate test string, using a placeholder hash;
# 2.  run the tests to determine the correct hash;
# 3.  copy the correct hash onto the test line;
# 4.  re-run the tests to ensure they pass.

test_lang de 8f9bd0211a8d0d7a4f78970b8ac8ed7a50242bb0 "drucker lampe computer stern sterne"

test_lang en 13464f360acc31b7d266164245c15b11e2fb6145 "foot strut north force cure thought lot cloth trap bath"
test_lang en-029 7587e73b30806a360d40088d4f00fa158472fbab "foot strut north force cure thought lot cloth trap bath"
test_lang en-GB-scotland c2a65df79d0da41a4590a0ba6e231e13bc4439b3 "foot strut north force cure thought lot cloth trap bath"
test_lang en-GB-x-gbclan da12c9fd6bfad8aed5644918fc97e683b01b2386 "foot strut north force cure thought lot cloth trap bath"
test_lang en-GB-x-gbcwmd 480e4c024cc06224f1352618e57d0ec4bf223e9a "foot strut north force cure thought lot cloth trap bath"
test_lang en-GB-x-rp 8f1f36267f10c88ca822355ecd9d4ee37faa8228 "foot strut north force cure thought lot cloth trap bath"
test_lang en-US 1653355ef008d67d315aa20e630e00614472a045 "foot strut north force cure thought lot cloth trap bath"

test_lang ja a3651d81da9158ee8b76bd6a31025220b4d84932 "か き く け こ"

# Languages with non-Latin characters fall back to en when speaking Latin characters.
test_lang bg "bg (English text)" ad98e816727288c7f3c525a4b4c30e72c7ea0c00 "foot strut north force cure thought lot cloth trap bath"
test_lang fa "fa (English text)" 9460f3dcd6cc7b4f3f45a9021f7706f1bdc7ae8f "foot strut north force cure thought lot cloth trap bath"
test_lang ka "ka (English text)" 4995fdb0fbe16bd97061c762badea03c1c44ba63 "foot strut north force cure thought lot cloth trap bath"
