#!/bin/bash
# test.sh - Don Yang (uguu.org)
#
# 09/03/12

set -e
source=nyaruko.c
target=nyaruko.exe
output_prefix=test-data-$$
test_input=$output_prefix-expected-output.txt
test_output_c=$output_prefix-output.c
test_output_bin=$output_prefix-output.exe
test_output_data=$output_prefix-actual-output.txt

# Fail with error message
function die() {
   echo "$1"
   exit 1
}

# Delete temporary files
function cleanup() {
   rm -f $test_input $test_output_c $test_output_bin $test_output_data
}

# Run tests for a single input
function run_single_test() {
   build=$1
   label=$2
   data=$3
   echo "test: $label"

   echo -n $data > $test_input
   ./$target < $test_input > $test_output_c
   $build $test_output_c -o $test_output_bin || "Can not compile output"
   ./$test_output_bin > $test_output_data || true
   diff -q $test_input $test_output_data || die "Outputs differ"
}

# Run tests for a single compiler setting
function run_tests() {
   build=$1
   echo "build: $build"

   $build $source -o $target
   run_single_test "$build" "empty" ""
   for i in $(seq 1 1 70); do
      run_single_test "$build" "size $i" $(perl -e "print 'x'x $i;")
   done
   for i in $(seq 71 11 256); do
      run_single_test "$build" "size $i" $(perl -e "print 'x'x $i;")
   done
   for i in 100000 1000000 2000000; do
      run_single_test "$build" "size $i" $(perl -e "print 'x'x $i;")
   done
   for i in $(seq 1 1 10); do
      run_single_test "$build" "ordered $i" $(perl -e "print '0123456789'x $i;")
   done
}


echo "Input: $source"
echo "Output prefix: $output_prefix"
cleanup
run_tests "gcc -Wall -O3"
#run_tests "clang"
cleanup
echo "all good"