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#include "lexer.h"
#include <yql/essentials/public/issue/yql_issue.h>
#include <yql/essentials/sql/settings/translation_settings.h>
#include <yql/essentials/sql/v1/lexer/lexer.h>
#include <yql/essentials/sql/v1/lexer/antlr4_pure_ansi/lexer.h>
#include <library/cpp/testing/unittest/registar.h>
#include <util/random/random.h>
using namespace NSQLTranslationV1;
using NSQLTranslation::SQL_MAX_PARSER_ERRORS;
using NSQLTranslation::Tokenize;
using NSQLTranslation::TParsedToken;
using NSQLTranslation::TParsedTokenList;
using NYql::TIssues;
TLexers Lexers = {
.Antlr4PureAnsi = MakeAntlr4PureAnsiLexerFactory(),
.Regex = MakeRegexLexerFactory(/* ansi = */ false),
.RegexAnsi = MakeRegexLexerFactory(/* ansi = */ true),
};
auto PureAnsiLexer = MakeLexer(
Lexers, /* ansi = */ true, /* antlr4 = */ true, ELexerFlavor::Pure);
auto DefaultLexer = MakeLexer(
Lexers, /* ansi = */ false, /* antlr4 = */ false, ELexerFlavor::Regex);
auto AnsiLexer = MakeLexer(
Lexers, /* ansi = */ true, /* antlr4 = */ false, ELexerFlavor::Regex);
TString ToString(TParsedToken token) {
TString& string = token.Name;
if (token.Name != token.Content && token.Name != "EOF") {
string += "(";
string += token.Content;
string += ")";
}
return string;
}
TString Tokenized(NSQLTranslation::ILexer& lexer, const TString& query) {
TParsedTokenList tokens;
TIssues issues;
bool ok = Tokenize(lexer, query, "Test", tokens, issues, SQL_MAX_PARSER_ERRORS);
TString out;
if (!ok) {
out = "[INVALID] ";
}
for (auto& token : tokens) {
out += ToString(std::move(token));
out += " ";
}
if (!out.empty()) {
out.pop_back();
}
return out;
}
TString RandomMultilineCommentLikeText(size_t maxSize) {
auto size = RandomNumber<size_t>(maxSize);
TString comment;
for (size_t i = 0; i < size; ++i) {
if (auto /* isOpen */ _ = RandomNumber<bool>()) {
comment += "/*";
} else {
comment += "*/";
}
for (int gap = RandomNumber<size_t>(2); gap > 0; --gap) {
comment += " ";
}
}
return comment;
}
void Check(TString input, TString expected, bool ansi) {
auto* lexer = DefaultLexer.Get();
if (ansi) {
lexer = AnsiLexer.Get();
}
UNIT_ASSERT_VALUES_EQUAL(Tokenized(*lexer, input), expected);
}
void Check(TString input, TString expected) {
Check(input, expected, /* ansi = */ false);
Check(input, expected, /* ansi = */ true);
}
Y_UNIT_TEST_SUITE(RegexLexerTests) {
Y_UNIT_TEST(Whitespace) {
Check("", "EOF");
Check(" ", "WS( ) EOF");
Check(" ", "WS( ) WS( ) EOF");
Check("\n", "WS(\n) EOF");
}
Y_UNIT_TEST(SinleLineComment) {
Check("--yql", "COMMENT(--yql) EOF");
Check("-- yql ", "COMMENT(-- yql ) EOF");
Check("-- yql\nSELECT", "COMMENT(-- yql\n) SELECT EOF");
Check("-- yql --", "COMMENT(-- yql --) EOF");
}
Y_UNIT_TEST(MultiLineComment) {
Check("/* yql */", "COMMENT(/* yql */) EOF");
Check("/* yql */ */", "COMMENT(/* yql */) WS( ) ASTERISK(*) SLASH(/) EOF");
Check("/* yql\n * yql\n */", "COMMENT(/* yql\n * yql\n */) EOF");
}
Y_UNIT_TEST(RecursiveMultiLineCommentDefault) {
Check("/* /* yql */", "COMMENT(/* /* yql */) EOF", /* ansi = */ false);
Check("/* /* yql */ */", "COMMENT(/* /* yql */) WS( ) ASTERISK(*) SLASH(/) EOF", /* ansi = */ false);
}
Y_UNIT_TEST(RecursiveMultiLineCommentAnsi) {
Check("/* /* yql */", "COMMENT(/* /* yql */) EOF", /* ansi = */ true);
Check("/* yql */ */", "COMMENT(/* yql */) WS( ) ASTERISK(*) SLASH(/) EOF", /* ansi = */ true);
Check("/* /* /* yql */ */", "COMMENT(/* /* /* yql */ */) EOF", /* ansi = */ true);
Check("/* /* yql */ */ */", "COMMENT(/* /* yql */ */) WS( ) ASTERISK(*) SLASH(/) EOF", /* ansi = */ true);
Check("/* /* yql */ */", "COMMENT(/* /* yql */ */) EOF", /* ansi = */ true);
Check("/*/*/*/", "COMMENT(/*/*/) ASTERISK(*) SLASH(/) EOF", /* ansi = */ true);
Check("/*/**/*/*/*/", "COMMENT(/*/**/*/) ASTERISK(*) SLASH(/) ASTERISK(*) SLASH(/) EOF", /* ansi = */ true);
Check("/* /* */ a /* /* */", "COMMENT(/* /* */ a /* /* */) EOF", /* ansi = */ true);
}
Y_UNIT_TEST(RecursiveMultiLineCommentAnsiReferenceComparion) {
SetRandomSeed(100);
for (size_t i = 0; i < 512; ++i) {
auto input = RandomMultilineCommentLikeText(/* maxSize = */ 128);
TString actual = Tokenized(*AnsiLexer, input);
TString expected = Tokenized(*PureAnsiLexer, input);
UNIT_ASSERT_VALUES_EQUAL_C(actual, expected, "Input: " << input);
}
}
Y_UNIT_TEST(Keyword) {
Check("SELECT", "SELECT EOF");
Check("INSERT", "INSERT EOF");
Check("FROM", "FROM EOF");
}
Y_UNIT_TEST(Punctuation) {
Check(
"* / + - <|",
"ASTERISK(*) WS( ) SLASH(/) WS( ) "
"PLUS(+) WS( ) MINUS(-) WS( ) STRUCT_OPEN(<|) EOF");
Check("SELECT*FROM", "SELECT ASTERISK(*) FROM EOF");
}
Y_UNIT_TEST(IdPlain) {
Check("variable my_table", "ID_PLAIN(variable) WS( ) ID_PLAIN(my_table) EOF");
}
Y_UNIT_TEST(IdQuoted) {
Check("``", "ID_QUOTED(``) EOF");
Check("` `", "ID_QUOTED(` `) EOF");
Check("` `", "ID_QUOTED(` `) EOF");
Check("`local/table`", "ID_QUOTED(`local/table`) EOF");
}
Y_UNIT_TEST(SinleLineString) {
Check("\"\"", "STRING_VALUE(\"\") EOF");
Check("\' \'", "STRING_VALUE(\' \') EOF");
Check("\" \"", "STRING_VALUE(\" \") EOF");
Check("\"test\"", "STRING_VALUE(\"test\") EOF");
Check("\"\\\"\"", "STRING_VALUE(\"\\\"\") EOF", /* ansi = */ false);
Check("\"\\\"\"", "[INVALID] STRING_VALUE(\"\\\") EOF", /* ansi = */ true);
Check("\"\"\"\"", "STRING_VALUE(\"\") STRING_VALUE(\"\") EOF", /* ansi = */ false);
Check("\"\"\"\"", "STRING_VALUE(\"\"\"\") EOF", /* ansi = */ true);
}
Y_UNIT_TEST(MultiLineString) {
Check("@@@@", "STRING_VALUE(@@@@) EOF");
Check("@@ @@@", "STRING_VALUE(@@ @@@) EOF");
Check("@@test@@", "STRING_VALUE(@@test@@) EOF");
Check("@@line1\nline2@@", "STRING_VALUE(@@line1\nline2@@) EOF");
}
Y_UNIT_TEST(Query) {
TString query =
"SELECT\n"
" 123467,\n"
" \"Hello, {name}!\",\n"
" (1 + (5 * 1 / 0)),\n"
" MIN(identifier),\n"
" Bool(field),\n"
" Math::Sin(var)\n"
"FROM `local/test/space/table`\n"
"JOIN test;";
TString expected =
"SELECT WS(\n) "
"WS( ) WS( ) INTEGER_VALUE(123467) COMMA(,) WS(\n) "
"WS( ) WS( ) STRING_VALUE(\"Hello, {name}!\") COMMA(,) WS(\n) "
"WS( ) WS( ) LPAREN(() INTEGER_VALUE(1) WS( ) PLUS(+) WS( ) LPAREN(() INTEGER_VALUE(5) WS( ) "
"ASTERISK(*) WS( ) INTEGER_VALUE(1) WS( ) SLASH(/) WS( ) INTEGER_VALUE(0) RPAREN()) "
"RPAREN()) COMMA(,) WS(\n) "
"WS( ) WS( ) ID_PLAIN(MIN) LPAREN(() ID_PLAIN(identifier) RPAREN()) COMMA(,) WS(\n) "
"WS( ) WS( ) ID_PLAIN(Bool) LPAREN(() ID_PLAIN(field) RPAREN()) COMMA(,) WS(\n) "
"WS( ) WS( ) ID_PLAIN(Math) NAMESPACE(::) ID_PLAIN(Sin) LPAREN(() ID_PLAIN(var) RPAREN()) WS(\n) "
"FROM WS( ) ID_QUOTED(`local/test/space/table`) WS(\n) "
"JOIN WS( ) ID_PLAIN(test) SEMICOLON(;) EOF";
Check(query, expected);
}
Y_UNIT_TEST(Invalid) {
Check("\"", "[INVALID] EOF");
Check("\" SELECT", "[INVALID] WS( ) SELECT EOF");
}
} // Y_UNIT_TEST_SUITE(RegexLexerTests)
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