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

83 строки
2.5 KiB
C++

/* -*- 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/Dafsa.h"
#include "gtest/gtest.h"
#include "nsString.h"
using mozilla::Dafsa;
namespace dafsa_test_1 {
#include "dafsa_test_1.inc" // kDafsa
}
TEST(Dafsa, Constructor)
{ Dafsa d(dafsa_test_1::kDafsa); }
TEST(Dafsa, StringsFound)
{
Dafsa d(dafsa_test_1::kDafsa);
int tag = d.Lookup("foo.bar.baz"_ns);
EXPECT_EQ(tag, 1);
tag = d.Lookup("a.test.string"_ns);
EXPECT_EQ(tag, 0);
tag = d.Lookup("a.test.string2"_ns);
EXPECT_EQ(tag, 2);
tag = d.Lookup("aaaa"_ns);
EXPECT_EQ(tag, 4);
}
TEST(Dafsa, StringsNotFound)
{
Dafsa d(dafsa_test_1::kDafsa);
// Matches all but last letter.
int tag = d.Lookup("foo.bar.ba"_ns);
EXPECT_EQ(tag, Dafsa::kKeyNotFound);
// Matches prefix with extra letter.
tag = d.Lookup("a.test.strings"_ns);
EXPECT_EQ(tag, Dafsa::kKeyNotFound);
// Matches small portion.
tag = d.Lookup("a.test"_ns);
EXPECT_EQ(tag, Dafsa::kKeyNotFound);
// Matches repeating pattern with extra letters.
tag = d.Lookup("aaaaa"_ns);
EXPECT_EQ(tag, Dafsa::kKeyNotFound);
// Empty string.
tag = d.Lookup(""_ns);
EXPECT_EQ(tag, Dafsa::kKeyNotFound);
}
TEST(Dafsa, HugeString)
{
Dafsa d(dafsa_test_1::kDafsa);
int tag = d.Lookup(nsLiteralCString(
"This is a very long string that is larger than the dafsa itself. "
"This is a very long string that is larger than the dafsa itself. "
"This is a very long string that is larger than the dafsa itself. "
"This is a very long string that is larger than the dafsa itself. "
"This is a very long string that is larger than the dafsa itself. "
"This is a very long string that is larger than the dafsa itself. "
"This is a very long string that is larger than the dafsa itself. "
"This is a very long string that is larger than the dafsa itself. "
"This is a very long string that is larger than the dafsa itself. "
"This is a very long string that is larger than the dafsa itself. "
"This is a very long string that is larger than the dafsa itself. "
"This is a very long string that is larger than the dafsa itself. "
"This is a very long string that is larger than the dafsa itself. "));
EXPECT_EQ(tag, Dafsa::kKeyNotFound);
}