#!/bin/bash
# Copyright 2014 (c) Anna Schumaker

. $(dirname $0)/_functions

function test_file
{
	test_equal "./src/file.run $1" "$2"
}

function test_chmod
{
	touch $2
	chmod $1 $2
}



###
#
# Test filepaths
#

new_test "Filepath Test"

test_file -D INVALID
test_file -L INVALID
test_file "-D file.txt" "$DATA_DIR/file.txt"
test_file "-L file.txt" "$LEGACY_DIR/file.txt"
test_file "file.txt" INVALID
test_file "-D -v file.txt" "0"
test_file "-L -v file.txt" "0"

if [ -d $DATA_DIR ]; then
	echo "ERROR: $DATA_DIR should not exist!"
	exit 1
fi



###
#
# Test opening files
#

echo
new_test "File Open Test"

# Generic open testing
test_file "-o N file.txt" "ERROR: A file with hint = FILE_TYPE_INVALID cannot be opened"
test_file "-D -o N file.txt" "ERROR: NOT_OPEN is not a legal OpenMode"
test_file "-D -o W -O file.txt" "ERROR: File is already open" # This test creates a file
test_file "-D -o R -O file.txt" "ERROR: File is already open"
rm $DATA_DIR/*

# Test opening for read
test_file "-D -o R file.txt" "ERROR: File does not exist"

test_chmod -r $DATA_DIR/file.txt
test_file "-D -o R file.txt" "ERROR: File could not be opened for reading"
rm -r $DATA_DIR

# Test opening for write
test_file "-L -o W file.txt" "ERROR: Cannot write to legacy files"

touch $DATA_DIR
test_file "-D -o W file.txt" "ERROR: Could not make directory"

rm $DATA_DIR
mkdir -p $DATA_DIR
test_chmod -w $DATA_DIR/file.txt
test_file "-D -o W file.txt" "ERROR: Could not open file for writing"
rm -rf $DATA_DIR



###
#
# Test closing files
#

echo
new_test "File Close Test"
test_file "-D -c file.txt" ""



###
#
# Test FILE IO
#

data="ABCDE FGHIJ KLMNO PQRST UVWXYZ"
echo
new_test "File IO Test"

# Write to file
./src/file.run -D -w file.txt "$data"
start_test
assert_equal "$(cat $DATA_DIR/file.txt)" "0
$data"

# Read data back from file
test_file "-D -r file.txt" "ABCDE
FGHIJ
KLMNO
PQRST
UVWXYZ"

# Write different data to file
./src/file.run -D -w file.txt "   $data"
start_test
assert_equal "$(cat $DATA_DIR/file.txt)" "0
   $data"

# Read data back in a single line
test_file "-D -r -g file.txt" "$data"