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//===- unittests/Core/MakefileDepsParserTest.cpp --------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2015 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See http://swift.org/LICENSE.txt for license information
// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
#include "llbuild/Core/MakefileDepsParser.h"
#include "gtest/gtest.h"
#include <string>
#include <vector>
using namespace llbuild;
using namespace llbuild::core;
namespace {
TEST(MakefileDepsParserTest, basic) {
typedef std::pair<std::string, std::vector<std::string>> RuleRecord;
typedef std::pair<std::string, uint64_t> ErrorRecord;
struct Testactions : public MakefileDepsParser::ParseActions {
std::vector<RuleRecord> records;
std::vector<std::pair<std::string, uint64_t>> errors;
virtual void error(StringRef message, uint64_t position) override {
errors.emplace_back(message.str(), position);
}
virtual void actOnRuleStart(StringRef name,
StringRef unescapedWord) override {
records.emplace_back(unescapedWord.str(),
std::vector<std::string>{});
}
virtual void actOnRuleDependency(StringRef dependency,
StringRef unescapedWord) override {
assert(!records.empty());
records.back().second.push_back(unescapedWord.str());
}
virtual void actOnRuleEnd() override {}
};
Testactions actions;
std::string input;
// Check a basic valid input with an escape sequence.
input = "a: b\\$c d\\\ne";
MakefileDepsParser(StringRef(input), actions, false).parse();
EXPECT_EQ(0U, actions.errors.size());
EXPECT_EQ(1U, actions.records.size());
EXPECT_EQ(RuleRecord("a", { "b\\$c", "d", "e" }),
actions.records[0]);
// Check a basic valid input.
actions.errors.clear();
actions.records.clear();
input = "a: b c d";
MakefileDepsParser(StringRef(input), actions, false).parse();
EXPECT_EQ(0U, actions.errors.size());
EXPECT_EQ(1U, actions.records.size());
EXPECT_EQ(RuleRecord("a", { "b", "c", "d" }),
actions.records[0]);
// Check a valid input with various escaped spaces.
actions.errors.clear();
actions.records.clear();
input = "a\\ b: a\\ b a$$b a\\b a\\#b a\\\\\\ b";
MakefileDepsParser(StringRef(input), actions, false).parse();
EXPECT_EQ(0U, actions.errors.size());
EXPECT_EQ(1U, actions.records.size());
EXPECT_EQ(RuleRecord("a b", {
"a b", "a$b", "a\\b", "a#b", "a\\ b" }),
actions.records[0]);
// Check a basic valid input with two rules.
actions.errors.clear();
actions.records.clear();
input = "a: b c d\none: two three";
MakefileDepsParser(StringRef(input), actions, false).parse();
EXPECT_EQ(0U, actions.errors.size());
EXPECT_EQ(2U, actions.records.size());
EXPECT_EQ(RuleRecord("a", { "b", "c", "d" }),
actions.records[0]);
EXPECT_EQ(RuleRecord("one", { "two", "three" }),
actions.records[1]);
// Check a basic valid input with two rules when ignoring subsequent outputs.
actions.errors.clear();
actions.records.clear();
input = "a: b c d\none: two three";
MakefileDepsParser(StringRef(input), actions, true).parse();
EXPECT_EQ(0U, actions.errors.size());
EXPECT_EQ(1U, actions.records.size());
EXPECT_EQ(RuleRecord("a", { "b", "c", "d" }),
actions.records[0]);
// Check a valid input with a trailing newline.
input = "out: \\\n in1\n";
actions.errors.clear();
actions.records.clear();
MakefileDepsParser(StringRef(input), actions, false).parse();
EXPECT_EQ(0U, actions.errors.size());
EXPECT_EQ(1U, actions.records.size());
EXPECT_EQ(RuleRecord("out", { "in1" }),
actions.records[0]);
input = "out: \\\r\n in1\n";
actions.errors.clear();
actions.records.clear();
MakefileDepsParser(StringRef(input), actions, false).parse();
EXPECT_EQ(0U, actions.errors.size());
EXPECT_EQ(1U, actions.records.size());
EXPECT_EQ(RuleRecord("out", { "in1" }),
actions.records[0]);
// Check error case if leading garbage.
actions.errors.clear();
actions.records.clear();
input = " $ a";
MakefileDepsParser(StringRef(input), actions, false).parse();
EXPECT_EQ(1U, actions.errors.size());
EXPECT_EQ(actions.errors[0],
ErrorRecord("unexpected character in file", 2U));
EXPECT_EQ(0U, actions.records.size());
// Check error case if no ':'.
actions.errors.clear();
actions.records.clear();
input = "a";
MakefileDepsParser(StringRef(input), actions, false).parse();
EXPECT_EQ(1U, actions.errors.size());
EXPECT_EQ(actions.errors[0],
ErrorRecord("missing ':' following rule", 1U));
EXPECT_EQ(1U, actions.records.size());
EXPECT_EQ(RuleRecord("a", {}),
actions.records[0]);
// Check error case in dependency list.
actions.errors.clear();
actions.records.clear();
input = "a: b$";
MakefileDepsParser(StringRef(input), actions, false).parse();
EXPECT_EQ(1U, actions.errors.size());
EXPECT_EQ(actions.errors[0],
ErrorRecord("unexpected character in prerequisites", 4U));
EXPECT_EQ(1U, actions.records.size());
EXPECT_EQ(RuleRecord("a", { "b" }),
actions.records[0]);
// Check that we can parse filenames with special characters.
actions.errors.clear();
actions.records.clear();
input = "/=>\\ ;|%.o : /=>\\ ;|%.swift";
MakefileDepsParser(StringRef(input), actions, false).parse();
EXPECT_EQ(0U, actions.errors.size());
EXPECT_EQ(1U, actions.records.size());
EXPECT_EQ(RuleRecord("/=> ;|%.o", { "/=> ;|%.swift" }), actions.records[0]);
// Check that we can parse filenames with colons.
actions.errors.clear();
actions.records.clear();
input = "a: b:c";
MakefileDepsParser(StringRef(input), actions, false).parse();
EXPECT_EQ(0U, actions.errors.size());
EXPECT_EQ(1U, actions.records.size());
EXPECT_EQ(RuleRecord("a", { "b:c" }), actions.records[0]);
}
}
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