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LanguageServer/Cpp: Add tests

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The Cpp LanguageServer tests can be run with: CppLanguageServer -t

The tests now only cover some very simple autocomplete and
"find declaration" use cases, but it's a start :)
This commit is contained in:
Itamar 2021-05-12 20:36:00 +03:00 • committed by Andreas Kling
parent e9fc5d6cc3
commit 6329e9fce6
4 changed files with 165 additions and 1 deletions
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135
Userland/DevTools/HackStudio/LanguageServers/Cpp/Tests.cpp Normal file
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/*
* Copyright (c) 2021, Itamar S. <itamar8910@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "Tests.h"
#include "../FileDB.h"
#include "ParserAutoComplete.h"
using namespace LanguageServers;
using namespace LanguageServers::Cpp;
static bool s_some_test_failed = false;
#define I_TEST(name) \
{ \
printf("Testing " #name "... "); \
fflush(stdout); \
}
#define PASS \
do { \
printf("PASS\n"); \
fflush(stdout); \
return; \
} while (0)
#define FAIL(reason) \
do { \
printf("FAIL: " #reason "\n"); \
s_some_test_failed = true; \
return; \
} while (0)
static void test_complete_local_args();
static void test_complete_local_vars();
static void test_complete_type();
static void test_find_variable_definition();
int run_tests()
{
test_complete_local_args();
test_complete_local_vars();
test_complete_type();
test_find_variable_definition();
return s_some_test_failed ? 1 : 0;
}
void test_complete_local_args()
{
I_TEST(Complete Local Args)
FileDB filedb;
String content = R"(
int main(int argc, char** argv){
ar
}
)";
filedb.add("a.cpp", content);
ParserAutoComplete autocomplete(filedb);
auto suggestions = autocomplete.get_suggestions("a.cpp", { 2, 2 });
if (suggestions.size() != 2)
FAIL(bad size);
if (suggestions[0].completion == "argc" && suggestions[1].completion == "argv")
PASS;
FAIL("wrong results");
}
void test_complete_local_vars()
{
I_TEST(Complete Local Vars)
FileDB filedb;
String content = R"(
int main(int argc, char** argv){
int myvar1 = 3;
myv
}
)";
filedb.add("a.cpp", content);
ParserAutoComplete autocomplete(filedb);
auto suggestions = autocomplete.get_suggestions("a.cpp", { 3, 3 });
if (suggestions.size() != 1)
FAIL(bad size);
if (suggestions[0].completion == "myvar1")
PASS;
FAIL("wrong results");
}
void test_complete_type()
{
I_TEST(Complete Type)
FileDB filedb;
String content = R"(
struct MyStruct {
int x;
}
void foo(){
MyS
}
)";
filedb.add("a.cpp", content);
ParserAutoComplete autocomplete(filedb);
auto suggestions = autocomplete.get_suggestions("a.cpp", { 5, 3 });
if (suggestions.size() != 1)
FAIL(bad size);
if (suggestions[0].completion == "MyStruct")
PASS;
FAIL("wrong results");
}
void test_find_variable_definition()
{
I_TEST(Find Variable Declaration)
FileDB filedb;
String content = R"(
int main(int argc, char** argv){
argv = nullptr;
}
)";
filedb.add("a.cpp", content);
ParserAutoComplete autocomplete(filedb);
auto position = autocomplete.find_declaration_of("a.cpp", { 2, 1 });
if (!position.has_value())
FAIL("declaration not found");
if (position.value().file == "a.cpp" && position.value().line == 1 && position.value().column >= 19)
PASS;
FAIL("wrong declaration location");
}