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