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llvm-mirror/unittests/Support/SpecialCaseListTest.cpp
Chandler Carruth ae65e281f3 Update the file headers across all of the LLVM projects in the monorepo 
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351636
2019-01-19 08:50:56 +00:00

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//===- SpecialCaseListTest.cpp - Unit tests for SpecialCaseList -----------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "llvm/Support/SpecialCaseList.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/MemoryBuffer.h"
#include "gtest/gtest.h"
using namespace llvm;
namespace {
class SpecialCaseListTest : public ::testing::Test {
protected:
std::unique_ptr<SpecialCaseList> makeSpecialCaseList(StringRef List,
std::string &Error) {
std::unique_ptr<MemoryBuffer> MB = MemoryBuffer::getMemBuffer(List);
return SpecialCaseList::create(MB.get(), Error);
}
std::unique_ptr<SpecialCaseList> makeSpecialCaseList(StringRef List) {
std::string Error;
auto SCL = makeSpecialCaseList(List, Error);
assert(SCL);
assert(Error == "");
return SCL;
}
std::string makeSpecialCaseListFile(StringRef Contents) {
int FD;
SmallString<64> Path;
sys::fs::createTemporaryFile("SpecialCaseListTest", "temp", FD, Path);
raw_fd_ostream OF(FD, true, true);
OF << Contents;
OF.close();
return Path.str();
}
};
TEST_F(SpecialCaseListTest, Basic) {
std::unique_ptr<SpecialCaseList> SCL =
makeSpecialCaseList("# This is a comment.\n"
"\n"
"src:hello\n"
"src:bye\n"
"src:hi=category\n"
"src:z*=category\n");
EXPECT_TRUE(SCL->inSection("", "src", "hello"));
EXPECT_TRUE(SCL->inSection("", "src", "bye"));
EXPECT_TRUE(SCL->inSection("", "src", "hi", "category"));
EXPECT_TRUE(SCL->inSection("", "src", "zzzz", "category"));
EXPECT_FALSE(SCL->inSection("", "src", "hi"));
EXPECT_FALSE(SCL->inSection("", "fun", "hello"));
EXPECT_FALSE(SCL->inSection("", "src", "hello", "category"));
EXPECT_EQ(3u, SCL->inSectionBlame("", "src", "hello"));
EXPECT_EQ(4u, SCL->inSectionBlame("", "src", "bye"));
EXPECT_EQ(5u, SCL->inSectionBlame("", "src", "hi", "category"));
EXPECT_EQ(6u, SCL->inSectionBlame("", "src", "zzzz", "category"));
EXPECT_EQ(0u, SCL->inSectionBlame("", "src", "hi"));
EXPECT_EQ(0u, SCL->inSectionBlame("", "fun", "hello"));
EXPECT_EQ(0u, SCL->inSectionBlame("", "src", "hello", "category"));
}
TEST_F(SpecialCaseListTest, CorrectErrorLineNumberWithBlankLine) {
std::string Error;
EXPECT_EQ(nullptr, makeSpecialCaseList("# This is a comment.\n"
"\n"
"[not valid\n",
Error));
EXPECT_TRUE(
((StringRef)Error).startswith("malformed section header on line 3:"));
EXPECT_EQ(nullptr, makeSpecialCaseList("\n\n\n"
"[not valid\n",
Error));
EXPECT_TRUE(
((StringRef)Error).startswith("malformed section header on line 4:"));
}
TEST_F(SpecialCaseListTest, SectionRegexErrorHandling) {
std::string Error;
EXPECT_EQ(makeSpecialCaseList("[address", Error), nullptr);
EXPECT_TRUE(((StringRef)Error).startswith("malformed section header "));
EXPECT_EQ(makeSpecialCaseList("[[]", Error), nullptr);
EXPECT_TRUE(((StringRef)Error).startswith("malformed regex for section [: "));
EXPECT_EQ(makeSpecialCaseList("src:=", Error), nullptr);
EXPECT_TRUE(((StringRef)Error).endswith("Supplied regexp was blank"));
}
TEST_F(SpecialCaseListTest, Section) {
std::unique_ptr<SpecialCaseList> SCL = makeSpecialCaseList("src:global\n"
"[sect1|sect2]\n"
"src:test1\n"
"[sect3*]\n"
"src:test2\n");
EXPECT_TRUE(SCL->inSection("arbitrary", "src", "global"));
EXPECT_TRUE(SCL->inSection("", "src", "global"));
EXPECT_TRUE(SCL->inSection("sect1", "src", "test1"));
EXPECT_FALSE(SCL->inSection("sect1-arbitrary", "src", "test1"));
EXPECT_FALSE(SCL->inSection("sect", "src", "test1"));
EXPECT_FALSE(SCL->inSection("sect1", "src", "test2"));
EXPECT_TRUE(SCL->inSection("sect2", "src", "test1"));
EXPECT_TRUE(SCL->inSection("sect3", "src", "test2"));
EXPECT_TRUE(SCL->inSection("sect3-arbitrary", "src", "test2"));
EXPECT_FALSE(SCL->inSection("", "src", "test1"));
EXPECT_FALSE(SCL->inSection("", "src", "test2"));
}
TEST_F(SpecialCaseListTest, GlobalInit) {
std::unique_ptr<SpecialCaseList> SCL =
makeSpecialCaseList("global:foo=init\n");
EXPECT_FALSE(SCL->inSection("", "global", "foo"));
EXPECT_FALSE(SCL->inSection("", "global", "bar"));
EXPECT_TRUE(SCL->inSection("", "global", "foo", "init"));
EXPECT_FALSE(SCL->inSection("", "global", "bar", "init"));
SCL = makeSpecialCaseList("type:t2=init\n");
EXPECT_FALSE(SCL->inSection("", "type", "t1"));
EXPECT_FALSE(SCL->inSection("", "type", "t2"));
EXPECT_FALSE(SCL->inSection("", "type", "t1", "init"));
EXPECT_TRUE(SCL->inSection("", "type", "t2", "init"));
SCL = makeSpecialCaseList("src:hello=init\n");
EXPECT_FALSE(SCL->inSection("", "src", "hello"));
EXPECT_FALSE(SCL->inSection("", "src", "bye"));
EXPECT_TRUE(SCL->inSection("", "src", "hello", "init"));
EXPECT_FALSE(SCL->inSection("", "src", "bye", "init"));
}
TEST_F(SpecialCaseListTest, Substring) {
std::unique_ptr<SpecialCaseList> SCL = makeSpecialCaseList("src:hello\n"
"fun:foo\n"
"global:bar\n");
EXPECT_FALSE(SCL->inSection("", "src", "othello"));
EXPECT_FALSE(SCL->inSection("", "fun", "tomfoolery"));
EXPECT_FALSE(SCL->inSection("", "global", "bartender"));
SCL = makeSpecialCaseList("fun:*foo*\n");
EXPECT_TRUE(SCL->inSection("", "fun", "tomfoolery"));
EXPECT_TRUE(SCL->inSection("", "fun", "foobar"));
}
TEST_F(SpecialCaseListTest, InvalidSpecialCaseList) {
std::string Error;
EXPECT_EQ(nullptr, makeSpecialCaseList("badline", Error));
EXPECT_EQ("malformed line 1: 'badline'", Error);
EXPECT_EQ(nullptr, makeSpecialCaseList("src:bad[a-", Error));
EXPECT_EQ("malformed regex in line 1: 'bad[a-': invalid character range",
Error);
EXPECT_EQ(nullptr, makeSpecialCaseList("src:a.c\n"
"fun:fun(a\n",
Error));
EXPECT_EQ("malformed regex in line 2: 'fun(a': parentheses not balanced",
Error);
std::vector<std::string> Files(1, "unexisting");
EXPECT_EQ(nullptr, SpecialCaseList::create(Files, Error));
EXPECT_EQ(0U, Error.find("can't open file 'unexisting':"));
}
TEST_F(SpecialCaseListTest, EmptySpecialCaseList) {
std::unique_ptr<SpecialCaseList> SCL = makeSpecialCaseList("");
EXPECT_FALSE(SCL->inSection("", "foo", "bar"));
}
TEST_F(SpecialCaseListTest, MultipleBlacklists) {
std::vector<std::string> Files;
Files.push_back(makeSpecialCaseListFile("src:bar\n"
"src:*foo*\n"
"src:ban=init\n"));
Files.push_back(makeSpecialCaseListFile("src:baz\n"
"src:*fog*\n"));
auto SCL = SpecialCaseList::createOrDie(Files);
EXPECT_TRUE(SCL->inSection("", "src", "bar"));
EXPECT_TRUE(SCL->inSection("", "src", "baz"));
EXPECT_FALSE(SCL->inSection("", "src", "ban"));
EXPECT_TRUE(SCL->inSection("", "src", "ban", "init"));
EXPECT_TRUE(SCL->inSection("", "src", "tomfoolery"));
EXPECT_TRUE(SCL->inSection("", "src", "tomfoglery"));
for (auto &Path : Files)
sys::fs::remove(Path);
}
TEST_F(SpecialCaseListTest, NoTrigramsInRules) {
std::unique_ptr<SpecialCaseList> SCL = makeSpecialCaseList("fun:b.r\n"
"fun:za*az\n");
EXPECT_TRUE(SCL->inSection("", "fun", "bar"));
EXPECT_FALSE(SCL->inSection("", "fun", "baz"));
EXPECT_TRUE(SCL->inSection("", "fun", "zakaz"));
EXPECT_FALSE(SCL->inSection("", "fun", "zaraza"));
}
TEST_F(SpecialCaseListTest, NoTrigramsInARule) {
std::unique_ptr<SpecialCaseList> SCL = makeSpecialCaseList("fun:*bar*\n"
"fun:za*az\n");
EXPECT_TRUE(SCL->inSection("", "fun", "abara"));
EXPECT_FALSE(SCL->inSection("", "fun", "bor"));
EXPECT_TRUE(SCL->inSection("", "fun", "zakaz"));
EXPECT_FALSE(SCL->inSection("", "fun", "zaraza"));
}
TEST_F(SpecialCaseListTest, RepetitiveRule) {
std::unique_ptr<SpecialCaseList> SCL = makeSpecialCaseList("fun:*bar*bar*bar*bar*\n"
"fun:bar*\n");
EXPECT_TRUE(SCL->inSection("", "fun", "bara"));
EXPECT_FALSE(SCL->inSection("", "fun", "abara"));
EXPECT_TRUE(SCL->inSection("", "fun", "barbarbarbar"));
EXPECT_TRUE(SCL->inSection("", "fun", "abarbarbarbar"));
EXPECT_FALSE(SCL->inSection("", "fun", "abarbarbar"));
}
TEST_F(SpecialCaseListTest, SpecialSymbolRule) {
std::unique_ptr<SpecialCaseList> SCL = makeSpecialCaseList("src:*c\\+\\+abi*\n");
EXPECT_TRUE(SCL->inSection("", "src", "c++abi"));
EXPECT_FALSE(SCL->inSection("", "src", "c\\+\\+abi"));
}
TEST_F(SpecialCaseListTest, PopularTrigram) {
std::unique_ptr<SpecialCaseList> SCL = makeSpecialCaseList("fun:*aaaaaa*\n"
"fun:*aaaaa*\n"
"fun:*aaaa*\n"
"fun:*aaa*\n");
EXPECT_TRUE(SCL->inSection("", "fun", "aaa"));
EXPECT_TRUE(SCL->inSection("", "fun", "aaaa"));
EXPECT_TRUE(SCL->inSection("", "fun", "aaaabbbaaa"));
}
TEST_F(SpecialCaseListTest, EscapedSymbols) {
std::unique_ptr<SpecialCaseList> SCL = makeSpecialCaseList("src:*c\\+\\+abi*\n"
"src:*hello\\\\world*\n");
EXPECT_TRUE(SCL->inSection("", "src", "dir/c++abi"));
EXPECT_FALSE(SCL->inSection("", "src", "dir/c\\+\\+abi"));
EXPECT_FALSE(SCL->inSection("", "src", "c\\+\\+abi"));
EXPECT_TRUE(SCL->inSection("", "src", "C:\\hello\\world"));
EXPECT_TRUE(SCL->inSection("", "src", "hello\\world"));
EXPECT_FALSE(SCL->inSection("", "src", "hello\\\\world"));
}
}
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