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gecko-dev/xpcom/tests/gtest/TestTokenizer.cpp

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C++
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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/Tokenizer.h"
#include "mozilla/IncrementalTokenizer.h"
#include "mozilla/Unused.h"
#include "gtest/gtest.h"
using namespace mozilla;
template <typename Char>
static bool IsOperator(Char const c) {
return c == '+' || c == '*';
}
static bool HttpHeaderCharacter(char const c) {
return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') ||
(c >= '0' && c <= '9') || (c == '_') || (c == '-');
}
TEST(Tokenizer, HTTPResponse)
{
Tokenizer::Token t;
// Real life test, HTTP response
Tokenizer p(
nsLiteralCString("HTTP/1.0 304 Not modified\r\n"
"ETag: hallo\r\n"
"Content-Length: 16\r\n"
"\r\n"
"This is the body"));
EXPECT_TRUE(p.CheckWord("HTTP"));
EXPECT_TRUE(p.CheckChar('/'));
EXPECT_TRUE(p.Check(Tokenizer::TOKEN_INTEGER, t));
EXPECT_TRUE(t.Type() == Tokenizer::TOKEN_INTEGER);
EXPECT_TRUE(t.AsInteger() == 1);
EXPECT_TRUE(p.CheckChar('.'));
EXPECT_TRUE(p.Check(Tokenizer::TOKEN_INTEGER, t));
EXPECT_TRUE(t.Type() == Tokenizer::TOKEN_INTEGER);
EXPECT_TRUE(t.AsInteger() == 0);
p.SkipWhites();
EXPECT_TRUE(p.Check(Tokenizer::TOKEN_INTEGER, t));
EXPECT_TRUE(t.Type() == Tokenizer::TOKEN_INTEGER);
EXPECT_TRUE(t.AsInteger() == 304);
p.SkipWhites();
p.Record();
while (p.Next(t) && t.Type() != Tokenizer::TOKEN_EOL)
;
EXPECT_FALSE(p.HasFailed());
nsAutoCString h;
p.Claim(h);
EXPECT_TRUE(h == "Not modified");
p.Record();
while (p.CheckChar(HttpHeaderCharacter))
;
p.Claim(h, Tokenizer::INCLUDE_LAST);
EXPECT_TRUE(h == "ETag");
p.SkipWhites();
EXPECT_TRUE(p.CheckChar(':'));
p.SkipWhites();
p.Record();
while (p.Next(t) && t.Type() != Tokenizer::TOKEN_EOL)
;
EXPECT_FALSE(p.HasFailed());
p.Claim(h);
EXPECT_TRUE(h == "hallo");
p.Record();
while (p.CheckChar(HttpHeaderCharacter))
;
p.Claim(h, Tokenizer::INCLUDE_LAST);
EXPECT_TRUE(h == "Content-Length");
p.SkipWhites();
EXPECT_TRUE(p.CheckChar(':'));
p.SkipWhites();
EXPECT_TRUE(p.Check(Tokenizer::TOKEN_INTEGER, t));
EXPECT_TRUE(t.AsInteger() == 16);
EXPECT_TRUE(p.CheckEOL());
EXPECT_TRUE(p.CheckEOL());
p.Record();
while (p.Next(t) && t.Type() != Tokenizer::TOKEN_EOF)
;
nsAutoCString b;
p.Claim(b);
EXPECT_TRUE(b == "This is the body");
}
TEST(Tokenizer, Main)
{
Tokenizer::Token t;
// Synthetic code-specific test
Tokenizer p("test123 ,15 \t*\r\n%xx,-15\r\r"_ns);
EXPECT_TRUE(p.Next(t));
EXPECT_TRUE(t.Type() == Tokenizer::TOKEN_WORD);
EXPECT_TRUE(t.AsString() == "test123");
Tokenizer::Token u;
EXPECT_FALSE(p.Check(u));
EXPECT_FALSE(p.CheckChar('!'));
EXPECT_FALSE(p.Check(Tokenizer::Token::Number(123)));
EXPECT_TRUE(p.CheckWhite());
EXPECT_TRUE(p.CheckChar(','));
EXPECT_TRUE(p.Check(Tokenizer::Token::Number(15)));
p.Rollback();
EXPECT_TRUE(p.Check(Tokenizer::Token::Number(15)));
p.Rollback();
EXPECT_TRUE(p.Next(t));
EXPECT_TRUE(t.Type() == Tokenizer::TOKEN_INTEGER);
EXPECT_TRUE(t.AsInteger() == 15);
EXPECT_FALSE(p.CheckChar(IsOperator));
EXPECT_TRUE(p.CheckWhite());
p.SkipWhites();
EXPECT_FALSE(p.CheckWhite());
p.Rollback();
EXPECT_TRUE(p.CheckWhite());
EXPECT_TRUE(p.CheckWhite());
p.Record(Tokenizer::EXCLUDE_LAST);
EXPECT_TRUE(p.CheckChar(IsOperator));
p.Rollback();
EXPECT_TRUE(p.Next(t));
EXPECT_TRUE(t.Type() == Tokenizer::TOKEN_CHAR);
EXPECT_TRUE(t.AsChar() == '*');
EXPECT_TRUE(p.Next(t));
EXPECT_TRUE(t.Type() == Tokenizer::TOKEN_EOL);
EXPECT_TRUE(p.Next(t));
EXPECT_TRUE(t.Type() == Tokenizer::TOKEN_CHAR);
EXPECT_TRUE(t.AsChar() == '%');
nsAutoCString claim;
p.Claim(claim, Tokenizer::EXCLUDE_LAST);
EXPECT_TRUE(claim == "*\r\n");
p.Claim(claim, Tokenizer::INCLUDE_LAST);
EXPECT_TRUE(claim == "*\r\n%");
p.Rollback();
EXPECT_TRUE(p.CheckChar('%'));
p.Record(Tokenizer::INCLUDE_LAST);
EXPECT_FALSE(p.CheckWord("xy"));
EXPECT_TRUE(p.CheckWord("xx"));
p.Claim(claim, Tokenizer::INCLUDE_LAST);
EXPECT_TRUE(claim == "%xx");
EXPECT_TRUE(p.Next(t));
EXPECT_TRUE(t.Type() == Tokenizer::TOKEN_CHAR);
EXPECT_TRUE(t.AsChar() == ',');
EXPECT_TRUE(p.CheckChar('-'));
EXPECT_TRUE(p.Next(t));
EXPECT_TRUE(t.Type() == Tokenizer::TOKEN_INTEGER);
EXPECT_TRUE(t.AsInteger() == 15);
EXPECT_TRUE(p.Next(t));
EXPECT_TRUE(t.Type() == Tokenizer::TOKEN_EOL);
EXPECT_TRUE(p.Next(t));
EXPECT_TRUE(t.Type() == Tokenizer::TOKEN_EOL);
EXPECT_TRUE(p.Next(t));
EXPECT_TRUE(t.Type() == Tokenizer::TOKEN_EOF);
EXPECT_FALSE(p.Next(t));
p.Rollback();
EXPECT_TRUE(p.Next(t));
EXPECT_TRUE(t.Type() == Tokenizer::TOKEN_EOF);
EXPECT_FALSE(p.Next(t));
p.Rollback();
EXPECT_TRUE(p.CheckEOF());
EXPECT_FALSE(p.CheckEOF());
}
TEST(Tokenizer, Main16)
{
Tokenizer16::Token t;
// Synthetic code-specific test
Tokenizer16 p(u"test123 ,15 \t*\r\n%xx,-15\r\r"_ns);
EXPECT_TRUE(p.Next(t));
EXPECT_TRUE(t.Type() == Tokenizer16::TOKEN_WORD);
EXPECT_TRUE(t.AsString() == u"test123"_ns);
Tokenizer16::Token u;
EXPECT_FALSE(p.Check(u));
EXPECT_FALSE(p.CheckChar('!'));
EXPECT_FALSE(p.Check(Tokenizer16::Token::Number(123)));
EXPECT_TRUE(p.CheckWhite());
EXPECT_TRUE(p.CheckChar(','));
EXPECT_TRUE(p.Check(Tokenizer16::Token::Number(15)));
p.Rollback();
EXPECT_TRUE(p.Check(Tokenizer16::Token::Number(15)));
p.Rollback();
EXPECT_TRUE(p.Next(t));
EXPECT_TRUE(t.Type() == Tokenizer16::TOKEN_INTEGER);
EXPECT_TRUE(t.AsInteger() == 15);
EXPECT_FALSE(p.CheckChar(IsOperator));
EXPECT_TRUE(p.CheckWhite());
p.SkipWhites();
EXPECT_FALSE(p.CheckWhite());
p.Rollback();
EXPECT_TRUE(p.CheckWhite());
EXPECT_TRUE(p.CheckWhite());
p.Record(Tokenizer16::EXCLUDE_LAST);
EXPECT_TRUE(p.CheckChar(IsOperator));
p.Rollback();
EXPECT_TRUE(p.Next(t));
EXPECT_TRUE(t.Type() == Tokenizer16::TOKEN_CHAR);
EXPECT_TRUE(t.AsChar() == '*');
EXPECT_TRUE(p.Next(t));
EXPECT_TRUE(t.Type() == Tokenizer16::TOKEN_EOL);
EXPECT_TRUE(p.Next(t));
EXPECT_TRUE(t.Type() == Tokenizer16::TOKEN_CHAR);
EXPECT_TRUE(t.AsChar() == '%');
nsAutoString claim;
p.Claim(claim, Tokenizer16::EXCLUDE_LAST);
EXPECT_TRUE(claim == u"*\r\n"_ns);
p.Claim(claim, Tokenizer16::INCLUDE_LAST);
EXPECT_TRUE(claim == u"*\r\n%"_ns);
p.Rollback();
EXPECT_TRUE(p.CheckChar('%'));
p.Record(Tokenizer16::INCLUDE_LAST);
EXPECT_FALSE(p.CheckWord(u"xy"_ns));
EXPECT_TRUE(p.CheckWord(u"xx"_ns));
p.Claim(claim, Tokenizer16::INCLUDE_LAST);
EXPECT_TRUE(claim == u"%xx"_ns);
EXPECT_TRUE(p.Next(t));
EXPECT_TRUE(t.Type() == Tokenizer16::TOKEN_CHAR);
EXPECT_TRUE(t.AsChar() == ',');
EXPECT_TRUE(p.CheckChar('-'));
EXPECT_TRUE(p.Next(t));
EXPECT_TRUE(t.Type() == Tokenizer16::TOKEN_INTEGER);
EXPECT_TRUE(t.AsInteger() == 15);
EXPECT_TRUE(p.Next(t));
EXPECT_TRUE(t.Type() == Tokenizer16::TOKEN_EOL);
EXPECT_TRUE(p.Next(t));
EXPECT_TRUE(t.Type() == Tokenizer16::TOKEN_EOL);
EXPECT_TRUE(p.Next(t));
EXPECT_TRUE(t.Type() == Tokenizer16::TOKEN_EOF);
EXPECT_FALSE(p.Next(t));
p.Rollback();
EXPECT_TRUE(p.Next(t));
EXPECT_TRUE(t.Type() == Tokenizer16::TOKEN_EOF);
EXPECT_FALSE(p.Next(t));
p.Rollback();
EXPECT_TRUE(p.CheckEOF());
EXPECT_FALSE(p.CheckEOF());
}
TEST(Tokenizer, SingleWord)
{
// Single word with numbers in it test
Tokenizer p("test123"_ns);
EXPECT_TRUE(p.CheckWord("test123"));
EXPECT_TRUE(p.CheckEOF());
}
TEST(Tokenizer, EndingAfterNumber)
{
// An end handling after a number
Tokenizer p("123"_ns);
EXPECT_FALSE(p.CheckWord("123"));
EXPECT_TRUE(p.Check(Tokenizer::Token::Number(123)));
EXPECT_TRUE(p.CheckEOF());
}
TEST(Tokenizer, BadInteger)
{
Tokenizer::Token t;
// A bad integer test
Tokenizer p("189234891274981758617846178651647620587135"_ns);
EXPECT_TRUE(p.Next(t));
EXPECT_TRUE(t.Type() == Tokenizer::TOKEN_ERROR);
EXPECT_TRUE(p.CheckEOF());
}
TEST(Tokenizer, CheckExpectedTokenValue)
{
Tokenizer::Token t;
// Check expected token value test
Tokenizer p("blue velvet"_ns);
EXPECT_FALSE(p.Check(Tokenizer::TOKEN_INTEGER, t));
EXPECT_TRUE(p.Check(Tokenizer::TOKEN_WORD, t));
EXPECT_TRUE(t.AsString() == "blue");
EXPECT_FALSE(p.Check(Tokenizer::TOKEN_WORD, t));
EXPECT_TRUE(p.CheckWhite());
EXPECT_TRUE(p.Check(Tokenizer::TOKEN_WORD, t));
EXPECT_TRUE(t.AsString() == "velvet");
EXPECT_TRUE(p.CheckEOF());
EXPECT_FALSE(p.Next(t));
}
TEST(Tokenizer, HasFailed)
{
Tokenizer::Token t;
// HasFailed test
Tokenizer p1("a b"_ns);
while (p1.Next(t) && t.Type() != Tokenizer::TOKEN_CHAR)
;
EXPECT_TRUE(p1.HasFailed());
Tokenizer p2("a b ?!c"_ns);
EXPECT_FALSE(p2.CheckChar('c'));
EXPECT_TRUE(p2.HasFailed());
EXPECT_TRUE(p2.CheckChar(HttpHeaderCharacter));
EXPECT_FALSE(p2.HasFailed());
p2.SkipWhites();
EXPECT_FALSE(p2.HasFailed());
EXPECT_FALSE(p2.CheckChar('c'));
EXPECT_TRUE(p2.HasFailed());
EXPECT_TRUE(p2.Next(t));
EXPECT_FALSE(p2.HasFailed());
EXPECT_TRUE(p2.Next(t));
EXPECT_FALSE(p2.HasFailed());
EXPECT_FALSE(p2.CheckChar('c'));
EXPECT_TRUE(p2.HasFailed());
EXPECT_TRUE(p2.Check(Tokenizer::TOKEN_CHAR, t));
EXPECT_FALSE(p2.HasFailed());
EXPECT_FALSE(p2.CheckChar('#'));
EXPECT_TRUE(p2.HasFailed());
t = Tokenizer::Token::Char('!');
EXPECT_TRUE(p2.Check(t));
EXPECT_FALSE(p2.HasFailed());
while (p2.Next(t) && t.Type() != Tokenizer::TOKEN_CHAR)
;
EXPECT_TRUE(p2.HasFailed());
}
TEST(Tokenizer, Construction)
{
{
nsCString a("test");
Tokenizer p1(a);
EXPECT_TRUE(p1.CheckWord("test"));
EXPECT_TRUE(p1.CheckEOF());
}
{
nsAutoCString a("test");
Tokenizer p1(a);
EXPECT_TRUE(p1.CheckWord("test"));
EXPECT_TRUE(p1.CheckEOF());
}
{
static const char _a[] = "test";
nsDependentCString a(_a);
Tokenizer p1(a);
EXPECT_TRUE(p1.CheckWord("test"));
EXPECT_TRUE(p1.CheckEOF());
}
{
static const char* _a = "test";
nsDependentCString a(_a);
Tokenizer p1(a);
EXPECT_TRUE(p1.CheckWord("test"));
EXPECT_TRUE(p1.CheckEOF());
}
{
Tokenizer p1(nsDependentCString("test"));
EXPECT_TRUE(p1.CheckWord("test"));
EXPECT_TRUE(p1.CheckEOF());
}
{
Tokenizer p1("test"_ns);
EXPECT_TRUE(p1.CheckWord("test"));
EXPECT_TRUE(p1.CheckEOF());
}
{
Tokenizer p1("test");
EXPECT_TRUE(p1.CheckWord("test"));
EXPECT_TRUE(p1.CheckEOF());
}
}
TEST(Tokenizer, Customization)
{
Tokenizer p1("test-custom*words and\tdefault-whites"_ns, nullptr, "-*");
EXPECT_TRUE(p1.CheckWord("test-custom*words"));
EXPECT_TRUE(p1.CheckWhite());
EXPECT_TRUE(p1.CheckWord("and"));
EXPECT_TRUE(p1.CheckWhite());
EXPECT_TRUE(p1.CheckWord("default-whites"));
Tokenizer p2("test, custom,whites"_ns, ", ");
EXPECT_TRUE(p2.CheckWord("test"));
EXPECT_TRUE(p2.CheckWhite());
EXPECT_TRUE(p2.CheckWhite());
EXPECT_TRUE(p2.CheckWord("custom"));
EXPECT_TRUE(p2.CheckWhite());
EXPECT_TRUE(p2.CheckWord("whites"));
Tokenizer p3("test, custom, whites-and#word-chars"_ns, ",", "-#");
EXPECT_TRUE(p3.CheckWord("test"));
EXPECT_TRUE(p3.CheckWhite());
EXPECT_FALSE(p3.CheckWhite());
EXPECT_TRUE(p3.CheckChar(' '));
EXPECT_TRUE(p3.CheckWord("custom"));
EXPECT_TRUE(p3.CheckWhite());
EXPECT_FALSE(p3.CheckWhite());
EXPECT_TRUE(p3.CheckChar(' '));
EXPECT_TRUE(p3.CheckWord("whites-and#word-chars"));
}
TEST(Tokenizer, ShortcutChecks)
{
Tokenizer p("test1 test2,123");
nsAutoCString test1;
nsDependentCSubstring test2;
char comma;
uint32_t integer;
EXPECT_TRUE(p.ReadWord(test1));
EXPECT_TRUE(test1 == "test1");
p.SkipWhites();
EXPECT_TRUE(p.ReadWord(test2));
EXPECT_TRUE(test2 == "test2");
EXPECT_TRUE(p.ReadChar(&comma));
EXPECT_TRUE(comma == ',');
EXPECT_TRUE(p.ReadInteger(&integer));
EXPECT_TRUE(integer == 123);
EXPECT_TRUE(p.CheckEOF());
}
static bool ABChar(const char aChar) { return aChar == 'a' || aChar == 'b'; }
TEST(Tokenizer, ReadCharClassified)
{
Tokenizer p("abc");
char c;
EXPECT_TRUE(p.ReadChar(ABChar, &c));
EXPECT_TRUE(c == 'a');
EXPECT_TRUE(p.ReadChar(ABChar, &c));
EXPECT_TRUE(c == 'b');
EXPECT_FALSE(p.ReadChar(ABChar, &c));
nsDependentCSubstring w;
EXPECT_TRUE(p.ReadWord(w));
EXPECT_TRUE(w == "c");
EXPECT_TRUE(p.CheckEOF());
}
TEST(Tokenizer, ClaimSubstring)
{
Tokenizer p(" abc ");
EXPECT_TRUE(p.CheckWhite());
p.Record();
EXPECT_TRUE(p.CheckWord("abc"));
nsDependentCSubstring v;
p.Claim(v, Tokenizer::INCLUDE_LAST);
EXPECT_TRUE(v == "abc");
EXPECT_TRUE(p.CheckWhite());
EXPECT_TRUE(p.CheckEOF());
}
TEST(Tokenizer, Fragment)
{
const char str[] = "ab;cd:10 ";
Tokenizer p(str);
nsDependentCSubstring f;
Tokenizer::Token t1, t2;
EXPECT_TRUE(p.Next(t1));
EXPECT_TRUE(t1.Type() == Tokenizer::TOKEN_WORD);
EXPECT_TRUE(t1.Fragment() == "ab");
EXPECT_TRUE(t1.Fragment().BeginReading() == &str[0]);
p.Rollback();
EXPECT_TRUE(p.Check(Tokenizer::TOKEN_WORD, t2));
EXPECT_TRUE(t2.Fragment() == "ab");
EXPECT_TRUE(t2.Fragment().BeginReading() == &str[0]);
EXPECT_TRUE(p.Next(t1));
EXPECT_TRUE(t1.Type() == Tokenizer::TOKEN_CHAR);
EXPECT_TRUE(t1.Fragment() == ";");
EXPECT_TRUE(t1.Fragment().BeginReading() == &str[2]);
p.Rollback();
EXPECT_TRUE(p.Check(Tokenizer::TOKEN_CHAR, t2));
EXPECT_TRUE(t2.Fragment() == ";");
EXPECT_TRUE(t2.Fragment().BeginReading() == &str[2]);
EXPECT_TRUE(p.Check(Tokenizer::TOKEN_WORD, t2));
EXPECT_TRUE(t2.Fragment() == "cd");
EXPECT_TRUE(t2.Fragment().BeginReading() == &str[3]);
p.Rollback();
EXPECT_TRUE(p.Next(t1));
EXPECT_TRUE(t1.Type() == Tokenizer::TOKEN_WORD);
EXPECT_TRUE(t1.Fragment() == "cd");
EXPECT_TRUE(t1.Fragment().BeginReading() == &str[3]);
EXPECT_TRUE(p.Check(Tokenizer::TOKEN_CHAR, t2));
EXPECT_TRUE(t2.Fragment() == ":");
EXPECT_TRUE(t2.Fragment().BeginReading() == &str[5]);
p.Rollback();
EXPECT_TRUE(p.Next(t1));
EXPECT_TRUE(t1.Type() == Tokenizer::TOKEN_CHAR);
EXPECT_TRUE(t1.Fragment() == ":");
EXPECT_TRUE(t1.Fragment().BeginReading() == &str[5]);
EXPECT_TRUE(p.Next(t1));
EXPECT_TRUE(t1.Type() == Tokenizer::TOKEN_INTEGER);
EXPECT_TRUE(t1.Fragment() == "10");
EXPECT_TRUE(t1.Fragment().BeginReading() == &str[6]);
EXPECT_TRUE(p.Check(Tokenizer::TOKEN_WS, t2));
EXPECT_TRUE(t2.Fragment() == " ");
EXPECT_TRUE(t2.Fragment().BeginReading() == &str[8]);
EXPECT_TRUE(p.Check(Tokenizer::TOKEN_EOF, t1));
EXPECT_TRUE(t1.Fragment() == "");
EXPECT_TRUE(t1.Fragment().BeginReading() == &str[9]);
}
TEST(Tokenizer, SkipWhites)
{
Tokenizer p("Text1 \nText2 \nText3\n Text4\n ");
EXPECT_TRUE(p.CheckWord("Text1"));
p.SkipWhites();
EXPECT_TRUE(p.CheckEOL());
EXPECT_TRUE(p.CheckWord("Text2"));
p.SkipWhites(Tokenizer::INCLUDE_NEW_LINE);
EXPECT_TRUE(p.CheckWord("Text3"));
p.SkipWhites();
EXPECT_TRUE(p.CheckEOL());
p.SkipWhites();
EXPECT_TRUE(p.CheckWord("Text4"));
p.SkipWhites(Tokenizer::INCLUDE_NEW_LINE);
EXPECT_TRUE(p.CheckEOF());
}
TEST(Tokenizer, SkipCustomWhites)
{
Tokenizer p("Text1 \n\r\t.Text2 \n\r\t.", " \n\r\t.");
EXPECT_TRUE(p.CheckWord("Text1"));
p.SkipWhites();
EXPECT_TRUE(p.CheckWord("Text2"));
EXPECT_TRUE(p.CheckWhite());
EXPECT_TRUE(p.CheckWhite());
EXPECT_TRUE(p.CheckWhite());
EXPECT_TRUE(p.CheckWhite());
EXPECT_TRUE(p.CheckWhite());
EXPECT_TRUE(p.CheckEOF());
}
TEST(Tokenizer, IntegerReading)
{
#define INT_6_BITS 64U
#define INT_30_BITS 1073741824UL
#define INT_32_BITS 4294967295UL
#define INT_50_BITS 1125899906842624ULL
#define STR_INT_MORE_THAN_64_BITS "922337203685477580899"
{
Tokenizer p(MOZ_STRINGIFY(INT_6_BITS));
uint8_t u8;
uint16_t u16;
uint32_t u32;
uint64_t u64;
EXPECT_TRUE(p.ReadInteger(&u8));
EXPECT_TRUE(u8 == INT_6_BITS);
p.Rollback();
EXPECT_TRUE(p.ReadInteger(&u16));
EXPECT_TRUE(u16 == INT_6_BITS);
p.Rollback();
EXPECT_TRUE(p.ReadInteger(&u32));
EXPECT_TRUE(u32 == INT_6_BITS);
p.Rollback();
EXPECT_TRUE(p.ReadInteger(&u64));
EXPECT_TRUE(u64 == INT_6_BITS);
p.Rollback();
int8_t s8;
int16_t s16;
int32_t s32;
int64_t s64;
EXPECT_TRUE(p.ReadInteger(&s8));
EXPECT_TRUE(s8 == INT_6_BITS);
p.Rollback();
EXPECT_TRUE(p.ReadInteger(&s16));
EXPECT_TRUE(s16 == INT_6_BITS);
p.Rollback();
EXPECT_TRUE(p.ReadInteger(&s32));
EXPECT_TRUE(s32 == INT_6_BITS);
p.Rollback();
EXPECT_TRUE(p.ReadInteger(&s64));
EXPECT_TRUE(s64 == INT_6_BITS);
EXPECT_TRUE(p.CheckWord("U"));
EXPECT_TRUE(p.CheckEOF());
}
{
Tokenizer p(MOZ_STRINGIFY(INT_30_BITS));
uint8_t u8;
uint16_t u16;
uint32_t u32;
uint64_t u64;
EXPECT_FALSE(p.ReadInteger(&u8));
EXPECT_FALSE(p.ReadInteger(&u16));
EXPECT_TRUE(p.ReadInteger(&u32));
EXPECT_TRUE(u32 == INT_30_BITS);
p.Rollback();
EXPECT_TRUE(p.ReadInteger(&u64));
EXPECT_TRUE(u64 == INT_30_BITS);
p.Rollback();
int8_t s8;
int16_t s16;
int32_t s32;
int64_t s64;
EXPECT_FALSE(p.ReadInteger(&s8));
EXPECT_FALSE(p.ReadInteger(&s16));
EXPECT_TRUE(p.ReadInteger(&s32));
EXPECT_TRUE(s32 == INT_30_BITS);
p.Rollback();
EXPECT_TRUE(p.ReadInteger(&s64));
EXPECT_TRUE(s64 == INT_30_BITS);
EXPECT_TRUE(p.CheckWord("UL"));
EXPECT_TRUE(p.CheckEOF());
}
{
Tokenizer p(MOZ_STRINGIFY(INT_32_BITS));
uint32_t u32;
int32_t s32;
EXPECT_FALSE(p.ReadInteger(&s32));
EXPECT_TRUE(p.ReadInteger(&u32));
EXPECT_TRUE(u32 == INT_32_BITS);
EXPECT_TRUE(p.CheckWord("UL"));
EXPECT_TRUE(p.CheckEOF());
}
{
Tokenizer p(MOZ_STRINGIFY(INT_50_BITS));
uint8_t u8;
uint16_t u16;
uint32_t u32;
uint64_t u64;
EXPECT_FALSE(p.ReadInteger(&u8));
EXPECT_FALSE(p.ReadInteger(&u16));
EXPECT_FALSE(p.ReadInteger(&u32));
EXPECT_TRUE(p.ReadInteger(&u64));
EXPECT_TRUE(u64 == INT_50_BITS);
EXPECT_TRUE(p.CheckWord("ULL"));
EXPECT_TRUE(p.CheckEOF());
}
{
Tokenizer p(STR_INT_MORE_THAN_64_BITS);
int64_t i;
EXPECT_FALSE(p.ReadInteger(&i));
uint64_t u;
EXPECT_FALSE(p.ReadInteger(&u));
EXPECT_FALSE(p.CheckEOF());
}
}
TEST(Tokenizer, ReadUntil)
{
Tokenizer p("Hello;test 4,");
nsDependentCSubstring f;
EXPECT_TRUE(p.ReadUntil(Tokenizer::Token::Char(';'), f));
EXPECT_TRUE(f == "Hello");
p.Rollback();
EXPECT_TRUE(
p.ReadUntil(Tokenizer::Token::Char(';'), f, Tokenizer::INCLUDE_LAST));
EXPECT_TRUE(f == "Hello;");
p.Rollback();
EXPECT_FALSE(p.ReadUntil(Tokenizer::Token::Char('!'), f));
EXPECT_TRUE(f == "Hello;test 4,");
p.Rollback();
EXPECT_TRUE(p.ReadUntil(Tokenizer::Token::Word("test"_ns), f));
EXPECT_TRUE(f == "Hello;");
p.Rollback();
EXPECT_TRUE(p.ReadUntil(Tokenizer::Token::Word("test"_ns), f,
Tokenizer::INCLUDE_LAST));
EXPECT_TRUE(f == "Hello;test");
EXPECT_TRUE(p.ReadUntil(Tokenizer::Token::Char(','), f));
EXPECT_TRUE(f == " 4");
}
TEST(Tokenizer, SkipUntil)
{
{
Tokenizer p("test1,test2,,,test3");
p.SkipUntil(Tokenizer::Token::Char(','));
EXPECT_TRUE(p.CheckChar(','));
EXPECT_TRUE(p.CheckWord("test2"));
p.SkipUntil(Tokenizer::Token::Char(',')); // must not move
EXPECT_TRUE(p.CheckChar(',')); // check the first comma of the ',,,' string
p.Rollback(); // moves cursor back to the first comma of the ',,,' string
p.SkipUntil(
Tokenizer::Token::Char(',')); // must not move, we are on the ',' char
EXPECT_TRUE(p.CheckChar(','));
EXPECT_TRUE(p.CheckChar(','));
EXPECT_TRUE(p.CheckChar(','));
EXPECT_TRUE(p.CheckWord("test3"));
p.Rollback();
p.SkipUntil(Tokenizer::Token::Char(','));
EXPECT_TRUE(p.CheckEOF());
}
{
Tokenizer p("test0,test1,test2");
p.SkipUntil(Tokenizer::Token::Char(','));
EXPECT_TRUE(p.CheckChar(','));
p.SkipUntil(Tokenizer::Token::Char(','));
p.Rollback();
EXPECT_TRUE(p.CheckWord("test1"));
EXPECT_TRUE(p.CheckChar(','));
p.SkipUntil(Tokenizer::Token::Char(','));
p.Rollback();
EXPECT_TRUE(p.CheckWord("test2"));
EXPECT_TRUE(p.CheckEOF());
}
}
TEST(Tokenizer, Custom)
{
Tokenizer p(
"aaaaaacustom-1\r,custom-1,Custom-1,Custom-1,00custom-2xxxx,CUSTOM-2");
Tokenizer::Token c1 =
p.AddCustomToken("custom-1", Tokenizer::CASE_INSENSITIVE);
Tokenizer::Token c2 = p.AddCustomToken("custom-2", Tokenizer::CASE_SENSITIVE);
// It's expected to NOT FIND the custom token if it's not on an edge
// between other recognizable tokens.
EXPECT_TRUE(p.CheckWord("aaaaaacustom"));
EXPECT_TRUE(p.CheckChar('-'));
EXPECT_TRUE(p.Check(Tokenizer::Token::Number(1)));
EXPECT_TRUE(p.CheckEOL());
EXPECT_TRUE(p.CheckChar(','));
EXPECT_TRUE(p.Check(c1));
EXPECT_TRUE(p.CheckChar(','));
EXPECT_TRUE(p.Check(c1));
EXPECT_TRUE(p.CheckChar(','));
p.EnableCustomToken(c1, false);
EXPECT_TRUE(p.CheckWord("Custom"));
EXPECT_TRUE(p.CheckChar('-'));
EXPECT_TRUE(p.Check(Tokenizer::Token::Number(1)));
EXPECT_TRUE(p.CheckChar(','));
EXPECT_TRUE(p.Check(Tokenizer::Token::Number(0)));
EXPECT_TRUE(p.Check(c2));
EXPECT_TRUE(p.CheckWord("xxxx"));
EXPECT_TRUE(p.CheckChar(','));
EXPECT_TRUE(p.CheckWord("CUSTOM"));
EXPECT_TRUE(p.CheckChar('-'));
EXPECT_TRUE(p.Check(Tokenizer::Token::Number(2)));
EXPECT_TRUE(p.CheckEOF());
}
TEST(Tokenizer, CustomRaw)
{
Tokenizer p(
"aaaaaacustom-1\r,custom-1,Custom-1,Custom-1,00custom-2xxxx,CUSTOM-2");
Tokenizer::Token c1 =
p.AddCustomToken("custom-1", Tokenizer::CASE_INSENSITIVE);
Tokenizer::Token c2 = p.AddCustomToken("custom-2", Tokenizer::CASE_SENSITIVE);
// In this mode it's expected to find all custom tokens among any kind of
// input.
p.SetTokenizingMode(Tokenizer::Mode::CUSTOM_ONLY);
Tokenizer::Token t;
EXPECT_TRUE(p.Next(t));
EXPECT_TRUE(t.Type() == Tokenizer::TOKEN_RAW);
EXPECT_TRUE(t.Fragment().EqualsLiteral("aaaaaa"));
EXPECT_TRUE(p.Check(c1));
EXPECT_TRUE(p.Next(t));
EXPECT_TRUE(t.Type() == Tokenizer::TOKEN_RAW);
EXPECT_TRUE(t.Fragment().EqualsLiteral("\r,"));
EXPECT_TRUE(p.Check(c1));
EXPECT_TRUE(p.Next(t));
EXPECT_TRUE(t.Type() == Tokenizer::TOKEN_RAW);
EXPECT_TRUE(t.Fragment().EqualsLiteral(","));
EXPECT_TRUE(p.Check(c1));
EXPECT_TRUE(p.Next(t));
EXPECT_TRUE(t.Type() == Tokenizer::TOKEN_RAW);
EXPECT_TRUE(t.Fragment().EqualsLiteral(","));
EXPECT_TRUE(p.Check(c1));
EXPECT_TRUE(p.Next(t));
EXPECT_TRUE(t.Type() == Tokenizer::TOKEN_RAW);
EXPECT_TRUE(t.Fragment().EqualsLiteral(",00"));
EXPECT_TRUE(p.Check(c2));
EXPECT_TRUE(p.Next(t));
EXPECT_TRUE(t.Type() == Tokenizer::TOKEN_RAW);
EXPECT_TRUE(t.Fragment().EqualsLiteral("xxxx,CUSTOM-2"));
EXPECT_TRUE(p.CheckEOF());
}
TEST(Tokenizer, Incremental)
{
typedef IncrementalTokenizer::Token Token;
int test = 0;
IncrementalTokenizer i(
[&](Token const& t, IncrementalTokenizer& i) -> nsresult {
switch (++test) {
case 1:
EXPECT_TRUE(t.Equals(Token::Word("test1"_ns)));
break;
case 2:
EXPECT_TRUE(t.Equals(Token::Char(',')));
break;
case 3:
EXPECT_TRUE(t.Equals(Token::Word("test2"_ns)));
break;
case 4:
EXPECT_TRUE(t.Equals(Token::Char(',')));
break;
case 5:
EXPECT_TRUE(t.Equals(Token::Char(',')));
break;
case 6:
EXPECT_TRUE(t.Equals(Token::Char(',')));
break;
case 7:
EXPECT_TRUE(t.Equals(Token::Word("test3"_ns)));
break;
case 8:
EXPECT_TRUE(t.Equals(Token::EndOfFile()));
break;
}
return NS_OK;
});
constexpr auto input = "test1,test2,,,test3"_ns;
auto cur = input.BeginReading();
auto end = input.EndReading();
for (; cur < end; ++cur) {
i.FeedInput(nsDependentCSubstring(cur, 1));
}
EXPECT_TRUE(test == 6);
i.FinishInput();
EXPECT_TRUE(test == 8);
}
TEST(Tokenizer, IncrementalRollback)
{
typedef IncrementalTokenizer::Token Token;
int test = 0;
IncrementalTokenizer i(
[&](Token const& t, IncrementalTokenizer& i) -> nsresult {
switch (++test) {
case 1:
EXPECT_TRUE(t.Equals(Token::Word("test1"_ns)));
break;
case 2:
EXPECT_TRUE(t.Equals(Token::Char(',')));
break;
case 3:
EXPECT_TRUE(t.Equals(Token::Word("test2"_ns)));
i.Rollback(); // so that we get the token again
break;
case 4:
EXPECT_TRUE(t.Equals(Token::Word("test2"_ns)));
break;
case 5:
EXPECT_TRUE(t.Equals(Token::Char(',')));
break;
case 6:
EXPECT_TRUE(t.Equals(Token::Char(',')));
break;
case 7:
EXPECT_TRUE(t.Equals(Token::Char(',')));
break;
case 8:
EXPECT_TRUE(t.Equals(Token::Word("test3"_ns)));
break;
case 9:
EXPECT_TRUE(t.Equals(Token::EndOfFile()));
break;
}
return NS_OK;
});
constexpr auto input = "test1,test2,,,test3"_ns;
auto cur = input.BeginReading();
auto end = input.EndReading();
for (; cur < end; ++cur) {
i.FeedInput(nsDependentCSubstring(cur, 1));
}
EXPECT_TRUE(test == 7);
i.FinishInput();
EXPECT_TRUE(test == 9);
}
TEST(Tokenizer, IncrementalNeedMoreInput)
{
typedef IncrementalTokenizer::Token Token;
int test = 0;
IncrementalTokenizer i(
[&](Token const& t, IncrementalTokenizer& i) -> nsresult {
Token t2;
switch (++test) {
case 1:
EXPECT_TRUE(t.Equals(Token::Word("a"_ns)));
break;
case 2:
case 3:
case 4:
case 5:
EXPECT_TRUE(t.Equals(Token::Whitespace()));
if (i.Next(t2)) {
EXPECT_TRUE(test == 5);
EXPECT_TRUE(t2.Equals(Token::Word("bb"_ns)));
} else {
EXPECT_TRUE(test < 5);
i.NeedMoreInput();
}
break;
case 6:
EXPECT_TRUE(t.Equals(Token::Char(',')));
break;
case 7:
EXPECT_TRUE(t.Equals(Token::Word("c"_ns)));
return NS_ERROR_FAILURE;
default:
EXPECT_TRUE(false);
break;
}
return NS_OK;
});
constexpr auto input = "a bb,c"_ns;
auto cur = input.BeginReading();
auto end = input.EndReading();
nsresult rv;
for (; cur < end; ++cur) {
rv = i.FeedInput(nsDependentCSubstring(cur, 1));
if (NS_FAILED(rv)) {
break;
}
}
EXPECT_TRUE(rv == NS_OK);
EXPECT_TRUE(test == 6);
rv = i.FinishInput();
EXPECT_TRUE(rv == NS_ERROR_FAILURE);
EXPECT_TRUE(test == 7);
}
TEST(Tokenizer, IncrementalCustom)
{
typedef IncrementalTokenizer::Token Token;
int test = 0;
Token custom;
IncrementalTokenizer i(
[&](Token const& t, IncrementalTokenizer& i) -> nsresult {
switch (++test) {
case 1:
EXPECT_TRUE(t.Equals(custom));
break;
case 2:
EXPECT_TRUE(t.Equals(Token::Word("bla"_ns)));
break;
case 3:
EXPECT_TRUE(t.Equals(Token::EndOfFile()));
break;
}
return NS_OK;
},
nullptr, "-");
custom = i.AddCustomToken("some-test", Tokenizer::CASE_SENSITIVE);
i.FeedInput("some-"_ns);
EXPECT_TRUE(test == 0);
i.FeedInput("tes"_ns);
EXPECT_TRUE(test == 0);
i.FeedInput("tbla"_ns);
EXPECT_TRUE(test == 1);
i.FinishInput();
EXPECT_TRUE(test == 3);
}
TEST(Tokenizer, IncrementalCustomRaw)
{
typedef IncrementalTokenizer::Token Token;
int test = 0;
Token custom;
IncrementalTokenizer i(
[&](Token const& t, IncrementalTokenizer& i) -> nsresult {
switch (++test) {
case 1:
EXPECT_TRUE(t.Fragment().EqualsLiteral("test1,"));
break;
case 2:
EXPECT_TRUE(t.Equals(custom));
break;
case 3:
EXPECT_TRUE(t.Fragment().EqualsLiteral("!,,test3"));
i.Rollback();
i.SetTokenizingMode(Tokenizer::Mode::FULL);
break;
case 4:
EXPECT_TRUE(t.Equals(Token::Char('!')));
i.SetTokenizingMode(Tokenizer::Mode::CUSTOM_ONLY);
break;
case 5:
EXPECT_TRUE(t.Fragment().EqualsLiteral(",,test3"));
break;
case 6:
EXPECT_TRUE(t.Equals(custom));
break;
case 7:
EXPECT_TRUE(t.Fragment().EqualsLiteral("tes"));
break;
case 8:
EXPECT_TRUE(t.Equals(Token::EndOfFile()));
break;
}
return NS_OK;
});
custom = i.AddCustomToken("test2", Tokenizer::CASE_SENSITIVE);
i.SetTokenizingMode(Tokenizer::Mode::CUSTOM_ONLY);
constexpr auto input = "test1,test2!,,test3test2tes"_ns;
auto cur = input.BeginReading();
auto end = input.EndReading();
for (; cur < end; ++cur) {
i.FeedInput(nsDependentCSubstring(cur, 1));
}
EXPECT_TRUE(test == 6);
i.FinishInput();
EXPECT_TRUE(test == 8);
}
TEST(Tokenizer, IncrementalCustomRemove)
{
typedef IncrementalTokenizer::Token Token;
int test = 0;
Token custom;
IncrementalTokenizer i(
[&](Token const& t, IncrementalTokenizer& i) -> nsresult {
switch (++test) {
case 1:
EXPECT_TRUE(t.Equals(custom));
i.RemoveCustomToken(custom);
break;
case 2:
EXPECT_FALSE(t.Equals(custom));
break;
case 3:
EXPECT_TRUE(t.Equals(Token::EndOfFile()));
break;
}
return NS_OK;
});
custom = i.AddCustomToken("custom1", Tokenizer::CASE_SENSITIVE);
constexpr auto input = "custom1custom1"_ns;
i.FeedInput(input);
EXPECT_TRUE(test == 1);
i.FinishInput();
EXPECT_TRUE(test == 3);
}
TEST(Tokenizer, IncrementalBuffering1)
{
typedef IncrementalTokenizer::Token Token;
int test = 0;
Token custom;
nsDependentCSubstring observedFragment;
IncrementalTokenizer i(
[&](Token const& t, IncrementalTokenizer& i) -> nsresult {
switch (++test) {
case 1:
EXPECT_TRUE(t.Fragment().EqualsLiteral("012"));
break;
case 2:
EXPECT_TRUE(t.Fragment().EqualsLiteral("3456789"));
break;
case 3:
EXPECT_TRUE(t.Equals(custom));
break;
case 4:
EXPECT_TRUE(t.Fragment().EqualsLiteral("qwe"));
break;
case 5:
EXPECT_TRUE(t.Fragment().EqualsLiteral("rt"));
break;
case 6:
EXPECT_TRUE(t.Equals(Token::EndOfFile()));
break;
}
observedFragment.Rebind(t.Fragment().BeginReading(),
t.Fragment().Length());
return NS_OK;
},
nullptr, nullptr, 3);
custom = i.AddCustomToken("aaa", Tokenizer::CASE_SENSITIVE);
// This externally unused token is added only to check the internal algorithm
// does work correctly as expected when there are two different length tokens.
Unused << i.AddCustomToken("bb", Tokenizer::CASE_SENSITIVE);
i.SetTokenizingMode(Tokenizer::Mode::CUSTOM_ONLY);
i.FeedInput("01234"_ns);
EXPECT_TRUE(test == 1);
EXPECT_TRUE(observedFragment.EqualsLiteral("012"));
i.FeedInput("5"_ns);
EXPECT_TRUE(test == 1);
i.FeedInput("6789aa"_ns);
EXPECT_TRUE(test == 2);
EXPECT_TRUE(observedFragment.EqualsLiteral("3456789"));
i.FeedInput("aqwert"_ns);
EXPECT_TRUE(test == 4);
EXPECT_TRUE(observedFragment.EqualsLiteral("qwe"));
i.FinishInput();
EXPECT_TRUE(test == 6);
}
TEST(Tokenizer, IncrementalBuffering2)
{
typedef IncrementalTokenizer::Token Token;
int test = 0;
Token custom;
IncrementalTokenizer i(
[&](Token const& t, IncrementalTokenizer& i) -> nsresult {
switch (++test) {
case 1:
EXPECT_TRUE(t.Fragment().EqualsLiteral("01"));
break;
case 2:
EXPECT_TRUE(t.Fragment().EqualsLiteral("234567"));
break;
case 3:
EXPECT_TRUE(t.Fragment().EqualsLiteral("89"));
break;
case 4:
EXPECT_TRUE(t.Equals(custom));
break;
case 5:
EXPECT_TRUE(t.Fragment().EqualsLiteral("qwert"));
break;
case 6:
EXPECT_TRUE(t.Equals(Token::EndOfFile()));
break;
}
return NS_OK;
},
nullptr, nullptr, 3);
custom = i.AddCustomToken("aaa", Tokenizer::CASE_SENSITIVE);
// This externally unused token is added only to check the internal algorithm
// does work correctly as expected when there are two different length tokens.
Unused << i.AddCustomToken("bbbbb", Tokenizer::CASE_SENSITIVE);
i.SetTokenizingMode(Tokenizer::Mode::CUSTOM_ONLY);
i.FeedInput("01234"_ns);
EXPECT_TRUE(test == 0);
i.FeedInput("5"_ns);
EXPECT_TRUE(test == 1);
i.FeedInput("6789aa"_ns);
EXPECT_TRUE(test == 2);
i.FeedInput("aqwert"_ns);
EXPECT_TRUE(test == 4);
i.FinishInput();
EXPECT_TRUE(test == 6);
}
TEST(Tokenizer, RecordAndReadUntil)
{
Tokenizer t("aaaa,bbbb");
t.SkipWhites();
nsDependentCSubstring subject;
EXPECT_TRUE(t.ReadUntil(mozilla::Tokenizer::Token::Char(','), subject));
EXPECT_FALSE(t.CheckChar(','));
EXPECT_TRUE(subject.Length() == 4);
EXPECT_TRUE(subject == "aaaa");
EXPECT_FALSE(t.ReadUntil(mozilla::Tokenizer::Token::Char(','), subject));
EXPECT_TRUE(subject.Length() == 4);
EXPECT_TRUE(subject == "bbbb");
EXPECT_FALSE(t.ReadUntil(mozilla::Tokenizer::Token::Char(','), subject));
EXPECT_TRUE(subject.Length() == 0);
EXPECT_TRUE(t.CheckEOF());
}
TEST(Tokenizer, ReadIntegers)
{
// Make sure that adding dash (the 'minus' sign) as an additional char
// doesn't break reading negative numbers.
Tokenizer t("100,-100,200,-200,4294967295,-4294967295,-2147483647", nullptr,
"-");
uint32_t unsigned_value32;
int32_t signed_value32;
int64_t signed_value64;
// "100,"
EXPECT_TRUE(t.ReadInteger(&unsigned_value32));
EXPECT_TRUE(unsigned_value32 == 100);
EXPECT_TRUE(t.CheckChar(','));
// "-100,"
EXPECT_FALSE(t.ReadInteger(&unsigned_value32));
EXPECT_FALSE(t.CheckChar(','));
EXPECT_TRUE(t.ReadSignedInteger(&signed_value32));
EXPECT_TRUE(signed_value32 == -100);
EXPECT_TRUE(t.CheckChar(','));
// "200,"
EXPECT_TRUE(t.ReadSignedInteger(&signed_value32));
EXPECT_TRUE(signed_value32 == 200);
EXPECT_TRUE(t.CheckChar(','));
// "-200,"
EXPECT_TRUE(t.ReadSignedInteger(&signed_value32));
EXPECT_TRUE(signed_value32 == -200);
EXPECT_TRUE(t.CheckChar(','));
// "4294967295,"
EXPECT_FALSE(t.ReadSignedInteger(&signed_value32));
EXPECT_FALSE(t.CheckChar(','));
EXPECT_TRUE(t.ReadInteger(&unsigned_value32));
EXPECT_TRUE(unsigned_value32 == 4294967295UL);
EXPECT_TRUE(t.CheckChar(','));
// "-4294967295,"
EXPECT_FALSE(t.ReadSignedInteger(&signed_value32));
EXPECT_FALSE(t.CheckChar(','));
EXPECT_FALSE(t.ReadInteger(&unsigned_value32));
EXPECT_FALSE(t.CheckChar(','));
EXPECT_TRUE(t.ReadSignedInteger(&signed_value64));
EXPECT_TRUE(signed_value64 == -4294967295LL);
EXPECT_TRUE(t.CheckChar(','));
// "-2147483647"
EXPECT_FALSE(t.ReadInteger(&unsigned_value32));
EXPECT_FALSE(t.CheckChar(','));
EXPECT_TRUE(t.ReadSignedInteger(&signed_value32));
EXPECT_TRUE(signed_value32 == -2147483647L);
EXPECT_TRUE(t.CheckEOF());
}
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