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#include "lexer.hpp"
#include <gtest/gtest.h>
static
io::FD string_pipe(ZString sz)
{
io::FD rfd, wfd;
if (-1 == io::FD::pipe(rfd, wfd))
return io::FD();
if (sz.size() != wfd.write(sz.c_str(), sz.size()))
{
rfd.close();
wfd.close();
return io::FD();
}
wfd.close();
return rfd;
}
TEST(sexpr, escape)
{
EXPECT_EQ(sexpr::escape('\0'), "\\x00");
EXPECT_EQ(sexpr::escape('\x1f'), "\\x1f");
EXPECT_EQ(sexpr::escape('\x20'), " ");
EXPECT_EQ(sexpr::escape('\x7e'), "~");
EXPECT_EQ(sexpr::escape('\x7f'), "\\x7f");
EXPECT_EQ(sexpr::escape('\x80'), "\\x80");
EXPECT_EQ(sexpr::escape('\xff'), "\\xff");
EXPECT_EQ(sexpr::escape('\a'), "\\a");
EXPECT_EQ(sexpr::escape('\b'), "\\b");
EXPECT_EQ(sexpr::escape('\e'), "\\e");
EXPECT_EQ(sexpr::escape('\f'), "\\f");
//EXPECT_EQ(sexpr::escape('\n'), "\\n");
EXPECT_EQ(sexpr::escape('\n'), "\n");
EXPECT_EQ(sexpr::escape('\r'), "\\r");
EXPECT_EQ(sexpr::escape('\t'), "\\t");
EXPECT_EQ(sexpr::escape('\v'), "\\v");
EXPECT_EQ(sexpr::escape('\\'), "\\\\");
EXPECT_EQ(sexpr::escape('\"'), "\\\"");
EXPECT_EQ(sexpr::escape("\x1f\x20\x7e\x7f\x80\xff\a\b\e\f\r\t\v\\\""),
"\"\\x1f ~\\x7f\\x80\\xff\\a\\b\\e\\f\\r\\t\\v\\\\\\\"\"");
}
TEST(sexpr, lexer)
{
io::LineSpan span;
sexpr::Lexer lexer("<lexer-test1>", string_pipe(" foo( ) 123\"\" \n"));
EXPECT_EQ(lexer.peek(), sexpr::TOK_TOKEN);
EXPECT_EQ(lexer.val_string(), "foo");
EXPECT_EQ(lexer.span().message_str("error", "test"),
"<lexer-test1>:1:2: error: test\n"
" foo( ) 123\"\" \n"
" ^~~\n"
);
lexer.adv();
EXPECT_EQ(lexer.peek(), sexpr::TOK_OPEN);
EXPECT_EQ(lexer.span().message_str("error", "test"),
"<lexer-test1>:1:5: error: test\n"
" foo( ) 123\"\" \n"
" ^\n"
);
lexer.adv();
EXPECT_EQ(lexer.peek(), sexpr::TOK_CLOSE);
EXPECT_EQ(lexer.span().message_str("error", "test"),
"<lexer-test1>:1:7: error: test\n"
" foo( ) 123\"\" \n"
" ^\n"
);
lexer.adv();
EXPECT_EQ(lexer.peek(), sexpr::TOK_TOKEN);
EXPECT_EQ(lexer.val_string(), "123");
EXPECT_EQ(lexer.span().message_str("error", "test"),
"<lexer-test1>:1:9: error: test\n"
" foo( ) 123\"\" \n"
" ^~~\n"
);
lexer.adv();
EXPECT_EQ(lexer.peek(), sexpr::TOK_STRING);
EXPECT_EQ(lexer.val_string(), "");
EXPECT_EQ(lexer.span().message_str("error", "test"),
"<lexer-test1>:1:12: error: test\n"
" foo( ) 123\"\" \n"
" ^~\n"
);
lexer.adv();
EXPECT_EQ(lexer.peek(), sexpr::TOK_EOF);
}
TEST(sexpr, lexbad)
{
{
io::LineSpan span;
sexpr::Lexer lexer("<lexer-bad>", string_pipe("(\n"));
EXPECT_EQ(lexer.peek(), sexpr::TOK_OPEN);
lexer.adv();
EXPECT_EQ(lexer.peek(), sexpr::TOK_ERROR);
}
for (ZString bad : {
ZString(")\n"),
ZString("\"\n"),
ZString("'\n"),
ZString("\\\n"),
ZString("\"\\"),
ZString("\"\\z\""),
})
{
io::LineSpan span;
sexpr::Lexer lexer("<lexer-bad>", string_pipe(bad));
EXPECT_EQ(lexer.peek(), sexpr::TOK_ERROR);
}
}
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