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/*
* Cppcheck - A tool for static C/C++ code analysis
* Copyright (C) 2007-2016 Cppcheck team.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "library.h"
#include "token.h"
#include "tokenlist.h"
#include "testsuite.h"
#include <tinyxml2.h>
class TestLibrary : public TestFixture {
public:
TestLibrary() : TestFixture("TestLibrary") { }
private:
void run() {
TEST_CASE(empty);
TEST_CASE(function);
TEST_CASE(function_match_scope);
TEST_CASE(function_match_args);
TEST_CASE(function_match_var);
TEST_CASE(function_arg);
TEST_CASE(function_arg_any);
TEST_CASE(function_arg_valid);
TEST_CASE(function_arg_minsize);
TEST_CASE(function_namespace);
TEST_CASE(function_warn);
TEST_CASE(memory);
TEST_CASE(memory2); // define extra "free" allocation functions
TEST_CASE(resource);
TEST_CASE(podtype);
TEST_CASE(container);
TEST_CASE(version);
}
Library::Error readLibrary(Library& library, const char* xmldata) const {
tinyxml2::XMLDocument doc;
doc.Parse(xmldata);
return library.load(doc);
}
void empty() const {
const char xmldata[] = "<?xml version=\"1.0\"?>\n<def/>";
Library library;
readLibrary(library, xmldata);
ASSERT(library.use.empty());
ASSERT(library.leakignore.empty());
ASSERT(library.argumentChecks.empty());
}
void function() const {
const char xmldata[] = "<?xml version=\"1.0\"?>\n"
"<def>\n"
" <function name=\"foo\">\n"
" <noreturn>false</noreturn>\n"
" </function>\n"
"</def>";
TokenList tokenList(nullptr);
std::istringstream istr("foo();");
tokenList.createTokens(istr);
tokenList.front()->next()->astOperand1(tokenList.front());
Library library;
readLibrary(library, xmldata);
ASSERT(library.use.empty());
ASSERT(library.leakignore.empty());
ASSERT(library.argumentChecks.empty());
ASSERT(library.isnotnoreturn(tokenList.front()));
}
void function_match_scope() const {
const char xmldata[] = "<?xml version=\"1.0\"?>\n"
"<def>\n"
" <function name=\"foo\">\n"
" <arg nr=\"1\"/>"
" </function>\n"
"</def>";
Library library;
readLibrary(library, xmldata);
{
TokenList tokenList(nullptr);
std::istringstream istr("fred.foo(123);"); // <- wrong scope, not library function
tokenList.createTokens(istr);
ASSERT(library.isNotLibraryFunction(tokenList.front()->tokAt(2)));
}
{
TokenList tokenList(nullptr);
std::istringstream istr("Fred::foo(123);"); // <- wrong scope, not library function
tokenList.createTokens(istr);
ASSERT(library.isNotLibraryFunction(tokenList.front()->tokAt(2)));
}
}
void function_match_args() const {
const char xmldata[] = "<?xml version=\"1.0\"?>\n"
"<def>\n"
" <function name=\"foo\">\n"
" <arg nr=\"1\"/>"
" </function>\n"
"</def>";
TokenList tokenList(nullptr);
std::istringstream istr("foo();"); // <- too few arguments, not library function
tokenList.createTokens(istr);
tokenList.front()->next()->astOperand1(tokenList.front());
Library library;
readLibrary(library, xmldata);
ASSERT(library.isNotLibraryFunction(tokenList.front()));
}
void function_match_var() const {
const char xmldata[] = "<?xml version=\"1.0\"?>\n"
"<def>\n"
" <function name=\"foo\">\n"
" <arg nr=\"1\"/>"
" </function>\n"
"</def>";
TokenList tokenList(nullptr);
std::istringstream istr("Fred foo(123);"); // <- Variable declaration, not library function
tokenList.createTokens(istr);
tokenList.front()->next()->astOperand1(tokenList.front());
tokenList.front()->next()->varId(1);
Library library;
readLibrary(library, xmldata);
ASSERT(library.isNotLibraryFunction(tokenList.front()->next()));
}
void function_arg() const {
const char xmldata[] = "<?xml version=\"1.0\"?>\n"
"<def>\n"
" <function name=\"foo\">\n"
" <arg nr=\"1\"><not-uninit/></arg>\n"
" <arg nr=\"2\"><not-null/></arg>\n"
" <arg nr=\"3\"><formatstr/></arg>\n"
" <arg nr=\"4\"><strz/></arg>\n"
" <arg nr=\"5\"><not-bool/></arg>\n"
" </function>\n"
"</def>";
Library library;
readLibrary(library, xmldata);
ASSERT_EQUALS(true, library.argumentChecks["foo"][1].notuninit);
ASSERT_EQUALS(true, library.argumentChecks["foo"][2].notnull);
ASSERT_EQUALS(true, library.argumentChecks["foo"][3].formatstr);
ASSERT_EQUALS(true, library.argumentChecks["foo"][4].strz);
ASSERT_EQUALS(true, library.argumentChecks["foo"][5].notbool);
}
void function_arg_any() const {
const char xmldata[] = "<?xml version=\"1.0\"?>\n"
"<def>\n"
"<function name=\"foo\">\n"
" <arg nr=\"any\"><not-uninit/></arg>\n"
"</function>\n"
"</def>";
Library library;
readLibrary(library, xmldata);
ASSERT_EQUALS(true, library.argumentChecks["foo"][-1].notuninit);
}
void function_arg_valid() const {
const char xmldata[] = "<?xml version=\"1.0\"?>\n"
"<def>\n"
" <function name=\"foo\">\n"
" <arg nr=\"1\"><valid>1:</valid></arg>\n"
" <arg nr=\"2\"><valid>-7:0</valid></arg>\n"
" <arg nr=\"3\"><valid>1:5,8</valid></arg>\n"
" <arg nr=\"4\"><valid>-1,5</valid></arg>\n"
" <arg nr=\"5\"><valid>:1,5</valid></arg>\n"
" </function>\n"
"</def>";
Library library;
readLibrary(library, xmldata);
TokenList tokenList(nullptr);
std::istringstream istr("foo(a,b,c,d,e);");
tokenList.createTokens(istr);
tokenList.front()->next()->astOperand1(tokenList.front());
// 1-
ASSERT_EQUALS(false, library.isargvalid(tokenList.front(), 1, -10));
ASSERT_EQUALS(false, library.isargvalid(tokenList.front(), 1, 0));
ASSERT_EQUALS(true, library.isargvalid(tokenList.front(), 1, 1));
ASSERT_EQUALS(true, library.isargvalid(tokenList.front(), 1, 10));
// -7-0
ASSERT_EQUALS(false, library.isargvalid(tokenList.front(), 2, -10));
ASSERT_EQUALS(true, library.isargvalid(tokenList.front(), 2, -7));
ASSERT_EQUALS(true, library.isargvalid(tokenList.front(), 2, -3));
ASSERT_EQUALS(true, library.isargvalid(tokenList.front(), 2, 0));
ASSERT_EQUALS(false, library.isargvalid(tokenList.front(), 2, 1));
// 1-5,8
ASSERT_EQUALS(false, library.isargvalid(tokenList.front(), 3, 0));
ASSERT_EQUALS(true, library.isargvalid(tokenList.front(), 3, 1));
ASSERT_EQUALS(true, library.isargvalid(tokenList.front(), 3, 3));
ASSERT_EQUALS(true, library.isargvalid(tokenList.front(), 3, 5));
ASSERT_EQUALS(false, library.isargvalid(tokenList.front(), 3, 6));
ASSERT_EQUALS(false, library.isargvalid(tokenList.front(), 3, 7));
ASSERT_EQUALS(true, library.isargvalid(tokenList.front(), 3, 8));
ASSERT_EQUALS(false, library.isargvalid(tokenList.front(), 3, 9));
// -1,5
ASSERT_EQUALS(false, library.isargvalid(tokenList.front(), 4, -10));
ASSERT_EQUALS(true, library.isargvalid(tokenList.front(), 4, -1));
// :1,5
ASSERT_EQUALS(true, library.isargvalid(tokenList.front(), 5, -10));
ASSERT_EQUALS(true, library.isargvalid(tokenList.front(), 5, 1));
ASSERT_EQUALS(false, library.isargvalid(tokenList.front(), 5, 2));
}
void function_arg_minsize() const {
const char xmldata[] = "<?xml version=\"1.0\"?>\n"
"<def>\n"
" <function name=\"foo\">\n"
" <arg nr=\"1\"><minsize type=\"strlen\" arg=\"2\"/></arg>\n"
" <arg nr=\"2\"><minsize type=\"argvalue\" arg=\"3\"/></arg>\n"
" <arg nr=\"3\"/>\n"
" </function>\n"
"</def>";
Library library;
readLibrary(library, xmldata);
TokenList tokenList(nullptr);
std::istringstream istr("foo(a,b,c);");
tokenList.createTokens(istr);
tokenList.front()->next()->astOperand1(tokenList.front());
// arg1: type=strlen arg2
const std::list<Library::ArgumentChecks::MinSize> *minsizes = library.argminsizes(tokenList.front(),1);
ASSERT_EQUALS(true, minsizes != nullptr);
ASSERT_EQUALS(1U, minsizes ? minsizes->size() : 1U);
if (minsizes && minsizes->size() == 1U) {
const Library::ArgumentChecks::MinSize &m = minsizes->front();
ASSERT_EQUALS(Library::ArgumentChecks::MinSize::STRLEN, m.type);
ASSERT_EQUALS(2, m.arg);
}
// arg2: type=argvalue arg3
minsizes = library.argminsizes(tokenList.front(), 2);
ASSERT_EQUALS(true, minsizes != nullptr);
ASSERT_EQUALS(1U, minsizes ? minsizes->size() : 1U);
if (minsizes && minsizes->size() == 1U) {
const Library::ArgumentChecks::MinSize &m = minsizes->front();
ASSERT_EQUALS(Library::ArgumentChecks::MinSize::ARGVALUE, m.type);
ASSERT_EQUALS(3, m.arg);
}
}
void function_namespace() const {
const char xmldata[] = "<?xml version=\"1.0\"?>\n"
"<def>\n"
" <function name=\"Foo::foo,bar\">\n"
" <noreturn>false</noreturn>\n"
" </function>\n"
"</def>";
Library library;
readLibrary(library, xmldata);
ASSERT(library.use.empty());
ASSERT(library.leakignore.empty());
ASSERT(library.argumentChecks.empty());
{
TokenList tokenList(nullptr);
std::istringstream istr("Foo::foo();");
tokenList.createTokens(istr);
ASSERT(library.isnotnoreturn(tokenList.front()->tokAt(2)));
}
{
TokenList tokenList(nullptr);
std::istringstream istr("bar();");
tokenList.createTokens(istr);
ASSERT(library.isnotnoreturn(tokenList.front()));
}
}
void function_warn() const {
const char xmldata[] = "<?xml version=\"1.0\"?>\n"
"<def>\n"
" <function name=\"a\">\n"
" <warn severity=\"style\" cstd=\"c99\">Message</warn>\n"
" </function>\n"
" <function name=\"b\">\n"
" <warn severity=\"performance\" cppstd=\"c++11\" reason=\"Obsolescent\" alternatives=\"c,d,e\"/>\n"
" </function>\n"
"</def>";
Library library;
readLibrary(library, xmldata);
TokenList tokenList(nullptr);
std::istringstream istr("a(); b();");
tokenList.createTokens(istr);
const Library::WarnInfo* a = library.getWarnInfo(tokenList.front());
const Library::WarnInfo* b = library.getWarnInfo(tokenList.front()->tokAt(4));
ASSERT_EQUALS(2, library.functionwarn.size());
ASSERT(a && b);
if (a && b) {
ASSERT_EQUALS("Message", a->message);
ASSERT_EQUALS(Severity::style, a->severity);
ASSERT_EQUALS(Standards::C99, a->standards.c);
ASSERT_EQUALS(Standards::CPP03, a->standards.cpp);
ASSERT_EQUALS("Obsolescent function 'b' called. It is recommended to use 'c', 'd' or 'e' instead.", b->message);
ASSERT_EQUALS(Severity::performance, b->severity);
ASSERT_EQUALS(Standards::C89, b->standards.c);
ASSERT_EQUALS(Standards::CPP11, b->standards.cpp);
}
}
void memory() const {
const char xmldata[] = "<?xml version=\"1.0\"?>\n"
"<def>\n"
" <memory>\n"
" <alloc>CreateX</alloc>\n"
" <dealloc>DeleteX</dealloc>\n"
" </memory>\n"
"</def>";
Library library;
readLibrary(library, xmldata);
ASSERT(library.use.empty());
ASSERT(library.leakignore.empty());
ASSERT(library.argumentChecks.empty());
ASSERT(Library::ismemory(library.alloc("CreateX")));
ASSERT_EQUALS(library.alloc("CreateX"), library.dealloc("DeleteX"));
}
void memory2() const {
const char xmldata1[] = "<?xml version=\"1.0\"?>\n"
"<def>\n"
" <memory>\n"
" <alloc>malloc</alloc>\n"
" <dealloc>free</dealloc>\n"
" </memory>\n"
"</def>";
const char xmldata2[] = "<?xml version=\"1.0\"?>\n"
"<def>\n"
" <memory>\n"
" <alloc>foo</alloc>\n"
" <dealloc>free</dealloc>\n"
" </memory>\n"
"</def>";
Library library;
library.loadxmldata(xmldata1, sizeof(xmldata1));
library.loadxmldata(xmldata2, sizeof(xmldata2));
ASSERT_EQUALS(library.dealloc("free"), library.alloc("malloc"));
ASSERT_EQUALS(library.dealloc("free"), library.alloc("foo"));
}
void resource() const {
const char xmldata[] = "<?xml version=\"1.0\"?>\n"
"<def>\n"
" <resource>\n"
" <alloc>CreateX</alloc>\n"
" <dealloc>DeleteX</dealloc>\n"
" </resource>\n"
"</def>";
Library library;
readLibrary(library, xmldata);
ASSERT(library.use.empty());
ASSERT(library.leakignore.empty());
ASSERT(library.argumentChecks.empty());
ASSERT(Library::isresource(library.alloc("CreateX")));
ASSERT_EQUALS(library.alloc("CreateX"), library.dealloc("DeleteX"));
}
void podtype() const {
const char xmldata[] = "<?xml version=\"1.0\"?>\n"
"<def>\n"
" <podtype name=\"s16\" size=\"2\"/>\n"
"</def>";
Library library;
readLibrary(library, xmldata);
const struct Library::PodType *type = library.podtype("s16");
ASSERT_EQUALS(2U, type ? type->size : 0U);
ASSERT_EQUALS((char)0, type ? type->sign : '?');
}
void container() const {
const char xmldata[] = "<?xml version=\"1.0\"?>\n"
"<def>\n"
" <container id=\"A\" startPattern=\"std :: A <\" endPattern=\"> !!::\" itEndPattern=\"> :: iterator\">\n"
" <type templateParameter=\"1\"/>\n"
" <size templateParameter=\"4\">\n"
" <function name=\"resize\" action=\"resize\"/>\n"
" <function name=\"clear\" action=\"clear\"/>\n"
" <function name=\"size\" yields=\"size\"/>\n"
" <function name=\"empty\" yields=\"empty\"/>\n"
" <function name=\"push_back\" action=\"push\"/>\n"
" <function name=\"pop_back\" action=\"pop\"/>\n"
" </size>\n"
" <access>\n"
" <function name=\"at\" yields=\"at_index\"/>\n"
" <function name=\"begin\" yields=\"start-iterator\"/>\n"
" <function name=\"end\" yields=\"end-iterator\"/>\n"
" <function name=\"data\" yields=\"buffer\"/>\n"
" <function name=\"c_str\" yields=\"buffer-nt\"/>\n"
" <function name=\"front\" yields=\"item\"/>\n"
" <function name=\"find\" action=\"find\"/>\n"
" </access>\n"
" </container>\n"
" <container id=\"B\" startPattern=\"std :: B <\" inherits=\"A\" opLessAllowed=\"false\">\n"
" <size templateParameter=\"3\"/>\n" // Inherits all but templateParameter
" </container>\n"
" <container id=\"C\">\n"
" <type string=\"std-like\"/>\n"
" <access indexOperator=\"array-like\"/>\n"
" </container>\n"
"</def>";
Library library;
readLibrary(library, xmldata);
Library::Container& A = library.containers["A"];
Library::Container& B = library.containers["B"];
Library::Container& C = library.containers["C"];
ASSERT_EQUALS(A.type_templateArgNo, 1);
ASSERT_EQUALS(A.size_templateArgNo, 4);
ASSERT_EQUALS(A.startPattern, "std :: A <");
ASSERT_EQUALS(A.endPattern, "> !!::");
ASSERT_EQUALS(A.itEndPattern, "> :: iterator");
ASSERT_EQUALS(A.stdStringLike, false);
ASSERT_EQUALS(A.arrayLike_indexOp, false);
ASSERT_EQUALS(A.opLessAllowed, true);
ASSERT_EQUALS(Library::Container::SIZE, A.getYield("size"));
ASSERT_EQUALS(Library::Container::EMPTY, A.getYield("empty"));
ASSERT_EQUALS(Library::Container::AT_INDEX, A.getYield("at"));
ASSERT_EQUALS(Library::Container::START_ITERATOR, A.getYield("begin"));
ASSERT_EQUALS(Library::Container::END_ITERATOR, A.getYield("end"));
ASSERT_EQUALS(Library::Container::BUFFER, A.getYield("data"));
ASSERT_EQUALS(Library::Container::BUFFER_NT, A.getYield("c_str"));
ASSERT_EQUALS(Library::Container::ITEM, A.getYield("front"));
ASSERT_EQUALS(Library::Container::NO_YIELD, A.getYield("foo"));
ASSERT_EQUALS(Library::Container::RESIZE, A.getAction("resize"));
ASSERT_EQUALS(Library::Container::CLEAR, A.getAction("clear"));
ASSERT_EQUALS(Library::Container::PUSH, A.getAction("push_back"));
ASSERT_EQUALS(Library::Container::POP, A.getAction("pop_back"));
ASSERT_EQUALS(Library::Container::FIND, A.getAction("find"));
ASSERT_EQUALS(Library::Container::NO_ACTION, A.getAction("foo"));
ASSERT_EQUALS(B.type_templateArgNo, 1);
ASSERT_EQUALS(B.size_templateArgNo, 3);
ASSERT_EQUALS(B.startPattern, "std :: B <");
ASSERT_EQUALS(B.endPattern, "> !!::");
ASSERT_EQUALS(B.itEndPattern, "> :: iterator");
ASSERT_EQUALS(B.functions.size(), A.functions.size());
ASSERT_EQUALS(B.opLessAllowed, false);
ASSERT(C.functions.empty());
ASSERT_EQUALS(C.type_templateArgNo, -1);
ASSERT_EQUALS(C.size_templateArgNo, -1);
ASSERT_EQUALS(C.stdStringLike, true);
ASSERT_EQUALS(C.arrayLike_indexOp, true);
}
void version() const {
{
const char xmldata [] = "<?xml version=\"1.0\"?>\n"
"<def>\n"
"</def>";
Library library;
Library::Error err = readLibrary(library, xmldata);
ASSERT_EQUALS(err.errorcode, Library::OK);
}
{
const char xmldata [] = "<?xml version=\"1.0\"?>\n"
"<def format=\"1\">\n"
"</def>";
Library library;
Library::Error err = readLibrary(library, xmldata);
ASSERT_EQUALS(err.errorcode, Library::OK);
}
{
const char xmldata [] = "<?xml version=\"1.0\"?>\n"
"<def format=\"42\">\n"
"</def>";
Library library;
Library::Error err = readLibrary(library, xmldata);
ASSERT_EQUALS(err.errorcode, Library::UNSUPPORTED_FORMAT);
}
}
};
REGISTER_TEST(TestLibrary)
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