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#!/bin/bash
set -e
exec 2>&1
oneTimeSetUp() {
# very basic lexer
# see https://fbb-git.gitlab.io/flexcpp/manual/flexc++01.html#l4
cat > ${SHUNIT_TMPDIR}/lexer <<EOF1
%%
[_a-zA-Z][_a-zA-Z0-9]* return 1;
.|\n // ignore
EOF1
# driver for our lexer
cat > ${SHUNIT_TMPDIR}/testflex.cc <<EOF2
#include <iostream>
#include "Scanner.h"
using namespace std;
int main()
{
Scanner scanner;
while (scanner.lex()) {
cout << scanner.matched() << " ";
}
cout << "\n";
return 0;
}
EOF2
# some input for our lexer
cat > ${SHUNIT_TMPDIR}/input <<EOF3
a b c
//
01 2 3.14159
#
X YY ZZZ
EOF3
}
#
# test steps must run in order
#
test01GenerateScanner() {
cd ${SHUNIT_TMPDIR}
flexc++ ${SHUNIT_TMPDIR}/lexer
for f in lex.cc Scannerbase.h Scanner.h Scanner.ih
do
if [ ! -f "${SHUNIT_TMPDIR}/${f}" ]; then
fail "flexc++ output file missing: ${f}"
fi
done
}
test02Compilation() {
cd ${SHUNIT_TMPDIR}
g++ *.cc -lbobcat -o testflex
if [ ! -f "${SHUNIT_TMPDIR}/testflex" ]; then
fail "compilation of textflex failed"
fi
}
test03RunScanner() {
local OUT=$(${SHUNIT_TMPDIR}/testflex < ${SHUNIT_TMPDIR}/input)
assertNotSame "no output from scanner" "" "${OUT}"
assertSame "unexpected output from scanner" "a b c X YY ZZZ " "${OUT}"
}
. shunit2
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