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//===- llvm/unittest/Support/FileCheckTest.cpp - FileCheck tests --===//
//
// 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/FileCheck.h"
#include "gtest/gtest.h"
using namespace llvm;
namespace {
class FileCheckTest : public ::testing::Test {};
TEST_F(FileCheckTest, ValidVarNameStart) {
EXPECT_TRUE(FileCheckPattern::isValidVarNameStart('a'));
EXPECT_TRUE(FileCheckPattern::isValidVarNameStart('G'));
EXPECT_TRUE(FileCheckPattern::isValidVarNameStart('_'));
EXPECT_FALSE(FileCheckPattern::isValidVarNameStart('2'));
EXPECT_FALSE(FileCheckPattern::isValidVarNameStart('$'));
EXPECT_FALSE(FileCheckPattern::isValidVarNameStart('@'));
EXPECT_FALSE(FileCheckPattern::isValidVarNameStart('+'));
EXPECT_FALSE(FileCheckPattern::isValidVarNameStart('-'));
EXPECT_FALSE(FileCheckPattern::isValidVarNameStart(':'));
}
TEST_F(FileCheckTest, ParseVar) {
StringRef VarName = "GoodVar42";
bool IsPseudo = true;
unsigned TrailIdx = 0;
EXPECT_FALSE(FileCheckPattern::parseVariable(VarName, IsPseudo, TrailIdx));
EXPECT_FALSE(IsPseudo);
EXPECT_EQ(TrailIdx, VarName.size());
VarName = "$GoodGlobalVar";
IsPseudo = true;
TrailIdx = 0;
EXPECT_FALSE(FileCheckPattern::parseVariable(VarName, IsPseudo, TrailIdx));
EXPECT_FALSE(IsPseudo);
EXPECT_EQ(TrailIdx, VarName.size());
VarName = "@GoodPseudoVar";
IsPseudo = true;
TrailIdx = 0;
EXPECT_FALSE(FileCheckPattern::parseVariable(VarName, IsPseudo, TrailIdx));
EXPECT_TRUE(IsPseudo);
EXPECT_EQ(TrailIdx, VarName.size());
VarName = "42BadVar";
EXPECT_TRUE(FileCheckPattern::parseVariable(VarName, IsPseudo, TrailIdx));
VarName = "$@";
EXPECT_TRUE(FileCheckPattern::parseVariable(VarName, IsPseudo, TrailIdx));
VarName = "B@dVar";
IsPseudo = true;
TrailIdx = 0;
EXPECT_FALSE(FileCheckPattern::parseVariable(VarName, IsPseudo, TrailIdx));
EXPECT_FALSE(IsPseudo);
EXPECT_EQ(TrailIdx, 1U);
VarName = "B$dVar";
IsPseudo = true;
TrailIdx = 0;
EXPECT_FALSE(FileCheckPattern::parseVariable(VarName, IsPseudo, TrailIdx));
EXPECT_FALSE(IsPseudo);
EXPECT_EQ(TrailIdx, 1U);
VarName = "BadVar+";
IsPseudo = true;
TrailIdx = 0;
EXPECT_FALSE(FileCheckPattern::parseVariable(VarName, IsPseudo, TrailIdx));
EXPECT_FALSE(IsPseudo);
EXPECT_EQ(TrailIdx, VarName.size() - 1);
VarName = "BadVar-";
IsPseudo = true;
TrailIdx = 0;
EXPECT_FALSE(FileCheckPattern::parseVariable(VarName, IsPseudo, TrailIdx));
EXPECT_FALSE(IsPseudo);
EXPECT_EQ(TrailIdx, VarName.size() - 1);
VarName = "BadVar:";
IsPseudo = true;
TrailIdx = 0;
EXPECT_FALSE(FileCheckPattern::parseVariable(VarName, IsPseudo, TrailIdx));
EXPECT_FALSE(IsPseudo);
EXPECT_EQ(TrailIdx, VarName.size() - 1);
}
TEST_F(FileCheckTest, FileCheckContext) {
FileCheckPatternContext Cxt = FileCheckPatternContext();
std::vector<std::string> GlobalDefines;
SourceMgr SM;
// Missing equal sign
GlobalDefines.emplace_back(std::string("LocalVar"));
EXPECT_TRUE(Cxt.defineCmdlineVariables(GlobalDefines, SM));
// Empty variable
GlobalDefines.clear();
GlobalDefines.emplace_back(std::string("=18"));
EXPECT_TRUE(Cxt.defineCmdlineVariables(GlobalDefines, SM));
// Invalid variable
GlobalDefines.clear();
GlobalDefines.emplace_back(std::string("18LocalVar=18"));
EXPECT_TRUE(Cxt.defineCmdlineVariables(GlobalDefines, SM));
// Define local variables from command-line.
GlobalDefines.clear();
GlobalDefines.emplace_back(std::string("LocalVar=FOO"));
GlobalDefines.emplace_back(std::string("EmptyVar="));
bool GotError = Cxt.defineCmdlineVariables(GlobalDefines, SM);
EXPECT_FALSE(GotError);
// Check defined variables are present and undefined is absent.
StringRef LocalVarStr = "LocalVar";
StringRef EmptyVarStr = "EmptyVar";
StringRef UnknownVarStr = "UnknownVar";
llvm::Optional<StringRef> LocalVar = Cxt.getVarValue(LocalVarStr);
llvm::Optional<StringRef> EmptyVar = Cxt.getVarValue(EmptyVarStr);
llvm::Optional<StringRef> UnknownVar = Cxt.getVarValue(UnknownVarStr);
EXPECT_TRUE(LocalVar);
EXPECT_EQ(*LocalVar, "FOO");
EXPECT_TRUE(EmptyVar);
EXPECT_EQ(*EmptyVar, "");
EXPECT_FALSE(UnknownVar);
// Clear local variables and check they become absent.
Cxt.clearLocalVars();
LocalVar = Cxt.getVarValue(LocalVarStr);
EXPECT_FALSE(LocalVar);
EmptyVar = Cxt.getVarValue(EmptyVarStr);
EXPECT_FALSE(EmptyVar);
// Redefine global variables and check variables are defined again.
GlobalDefines.emplace_back(std::string("$GlobalVar=BAR"));
GotError = Cxt.defineCmdlineVariables(GlobalDefines, SM);
EXPECT_FALSE(GotError);
StringRef GlobalVarStr = "$GlobalVar";
llvm::Optional<StringRef> GlobalVar = Cxt.getVarValue(GlobalVarStr);
EXPECT_TRUE(GlobalVar);
EXPECT_EQ(*GlobalVar, "BAR");
// Clear local variables and check global variables remain defined.
Cxt.clearLocalVars();
GlobalVar = Cxt.getVarValue(GlobalVarStr);
EXPECT_TRUE(GlobalVar);
}
} // namespace
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