/**************************************************************************/
/* test_lsp.h */
/**************************************************************************/
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/* GODOT ENGINE */
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
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#ifndef TEST_LSP_H
#define TEST_LSP_H
#ifdef TOOLS_ENABLED
#include "tests/test_macros.h"
#include "../language_server/gdscript_extend_parser.h"
#include "../language_server/gdscript_language_protocol.h"
#include "../language_server/gdscript_workspace.h"
#include "../language_server/godot_lsp.h"
#include "core/io/dir_access.h"
#include "core/io/file_access_pack.h"
#include "core/os/os.h"
#include "editor/editor_help.h"
#include "editor/editor_node.h"
#include "modules/gdscript/gdscript_analyzer.h"
#include "modules/regex/regex.h"
#include "thirdparty/doctest/doctest.h"
template <>
struct doctest::StringMaker<lsp::Position> {
static doctest::String convert(const lsp::Position &p_val) {
return p_val.to_string().utf8().get_data();
}
};
template <>
struct doctest::StringMaker<lsp::Range> {
static doctest::String convert(const lsp::Range &p_val) {
return p_val.to_string().utf8().get_data();
}
};
template <>
struct doctest::StringMaker<GodotPosition> {
static doctest::String convert(const GodotPosition &p_val) {
return p_val.to_string().utf8().get_data();
}
};
namespace GDScriptTests {
// LSP GDScript test scripts are located inside project of other GDScript tests:
// Cannot reset `ProjectSettings` (singleton) -> Cannot load another workspace and resources in there.
// -> Reuse GDScript test project. LSP specific scripts are then placed inside `lsp` folder.
// Access via `res://lsp/my_script.gd`.
const String root = "modules/gdscript/tests/scripts/";
/*
* After use:
* * `memdelete` returned `GDScriptLanguageProtocol`.
* * Call `GDScriptTests::::finish_language`.
*/
GDScriptLanguageProtocol *initialize(const String &p_root) {
Error err = OK;
Ref<DirAccess> dir(DirAccess::open(p_root, &err));
REQUIRE_MESSAGE(err == OK, "Could not open specified root directory");
String absolute_root = dir->get_current_dir();
init_language(absolute_root);
GDScriptLanguageProtocol *proto = memnew(GDScriptLanguageProtocol);
Ref<GDScriptWorkspace> workspace = GDScriptLanguageProtocol::get_singleton()->get_workspace();
workspace->root = absolute_root;
// On windows: `C:/...` -> `C%3A/...`.
workspace->root_uri = "file:///" + absolute_root.lstrip("/").replace_first(":", "%3A");
return proto;
}
lsp::Position pos(const int p_line, const int p_character) {
lsp::Position p;
p.line = p_line;
p.character = p_character;
return p;
}
lsp::Range range(const lsp::Position p_start, const lsp::Position p_end) {
lsp::Range r;
r.start = p_start;
r.end = p_end;
return r;
}
lsp::TextDocumentPositionParams pos_in(const lsp::DocumentUri &p_uri, const lsp::Position p_pos) {
lsp::TextDocumentPositionParams params;
params.textDocument.uri = p_uri;
params.position = p_pos;
return params;
}
const lsp::DocumentSymbol *test_resolve_symbol_at(const String &p_uri, const lsp::Position p_pos, const String &p_expected_uri, const String &p_expected_name, const lsp::Range &p_expected_range) {
Ref<GDScriptWorkspace> workspace = GDScriptLanguageProtocol::get_singleton()->get_workspace();
lsp::TextDocumentPositionParams params = pos_in(p_uri, p_pos);
const lsp::DocumentSymbol *symbol = workspace->resolve_symbol(params);
CHECK(symbol);
if (symbol) {
CHECK_EQ(symbol->uri, p_expected_uri);
CHECK_EQ(symbol->name, p_expected_name);
CHECK_EQ(symbol->selectionRange, p_expected_range);
}
return symbol;
}
struct InlineTestData {
lsp::Range range;
String text;
String name;
String ref;
static bool try_parse(const Vector<String> &p_lines, const int p_line_number, InlineTestData &r_data) {
String line = p_lines[p_line_number];
RegEx regex = RegEx("^\\t*#[ |]*(?<range>(?<left><)?\\^+)(\\s+(?<name>(?!->)\\S+))?(\\s+->\\s+(?<ref>\\S+))?");
Ref<RegExMatch> match = regex.search(line);
if (match.is_null()) {
return false;
}
// Find first line without leading comment above current line.
int target_line = p_line_number;
while (target_line >= 0) {
String dedented = p_lines[target_line].lstrip("\t");
if (!dedented.begins_with("#")) {
break;
}
target_line--;
}
if (target_line < 0) {
return false;
}
r_data.range.start.line = r_data.range.end.line = target_line;
String marker = match->get_string("range");
int i = line.find(marker);
REQUIRE(i >= 0);
r_data.range.start.character = i;
if (!match->get_string("left").is_empty()) {
// Include `#` (comment char) in range.
r_data.range.start.character--;
}
r_data.range.end.character = i + marker.length();
String target = p_lines[target_line];
r_data.text = target.substr(r_data.range.start.character, r_data.range.end.character - r_data.range.start.character);
r_data.name = match->get_string("name");
r_data.ref = match->get_string("ref");
return true;
}
};
Vector<InlineTestData> read_tests(const String &p_path) {
Error err;
String source = FileAccess::get_file_as_string(p_path, &err);
REQUIRE_MESSAGE(err == OK, vformat("Cannot read '%s'", p_path));
// Format:
// ```gdscript
// var foo = bar + baz
// # | | | | ^^^ name -> ref
// # | | ^^^ -> ref
// # ^^^ name
//
// func my_func():
// # ^^^^^^^ name
// var value = foo + 42
// # ^^^^^ name
// print(value)
// # ^^^^^ -> ref
// ```
//
// * `^`: Range marker.
// * `name`: Unique name. Can contain any characters except whitespace chars.
// * `ref`: Reference to unique name.
//
// Notes:
// * If range should include first content-char (which is occupied by `#`): use `<` for next marker.
// -> Range expands 1 to left (-> includes `#`).
// * Note: Means: Range cannot be single char directly marked by `#`, but must be at least two chars (marked with `#<`).
// * Comment must start at same ident as line its marked (-> because of tab alignment...).
// * Use spaces to align after `#`! -> for correct alignment
// * Between `#` and `^` can be spaces or `|` (to better visualize what's marked below).
PackedStringArray lines = source.split("\n");
PackedStringArray names;
Vector<InlineTestData> data;
for (int i = 0; i < lines.size(); i++) {
InlineTestData d;
if (InlineTestData::try_parse(lines, i, d)) {
if (!d.name.is_empty()) {
// Safety check: names must be unique.
if (names.has(d.name)) {
FAIL(vformat("Duplicated name '%s' in '%s'. Names must be unique!", d.name, p_path));
}
names.append(d.name);
}
data.append(d);
}
}
return data;
}
void test_resolve_symbol(const String &p_uri, const InlineTestData &p_test_data, const Vector<InlineTestData> &p_all_data) {
if (p_test_data.ref.is_empty()) {
return;
}
SUBCASE(vformat("Can resolve symbol '%s' at %s to '%s'", p_test_data.text, p_test_data.range.to_string(), p_test_data.ref).utf8().get_data()) {
const InlineTestData *target = nullptr;
for (int i = 0; i < p_all_data.size(); i++) {
if (p_all_data[i].name == p_test_data.ref) {
target = &p_all_data[i];
break;
}
}
REQUIRE_MESSAGE(target, vformat("No target for ref '%s'", p_test_data.ref));
Ref<GDScriptWorkspace> workspace = GDScriptLanguageProtocol::get_singleton()->get_workspace();
lsp::Position pos = p_test_data.range.start;
SUBCASE("start of identifier") {
pos.character = p_test_data.range.start.character;
test_resolve_symbol_at(p_uri, pos, p_uri, target->text, target->range);
}
SUBCASE("inside identifier") {
pos.character = (p_test_data.range.end.character + p_test_data.range.start.character) / 2;
test_resolve_symbol_at(p_uri, pos, p_uri, target->text, target->range);
}
SUBCASE("end of identifier") {
pos.character = p_test_data.range.end.character;
test_resolve_symbol_at(p_uri, pos, p_uri, target->text, target->range);
}
}
}
Vector<InlineTestData> filter_ref_towards(const Vector<InlineTestData> &p_data, const String &p_name) {
Vector<InlineTestData> res;
for (const InlineTestData &d : p_data) {
if (d.ref == p_name) {
res.append(d);
}
}
return res;
}
void test_resolve_symbols(const String &p_uri, const Vector<InlineTestData> &p_test_data, const Vector<InlineTestData> &p_all_data) {
for (const InlineTestData &d : p_test_data) {
test_resolve_symbol(p_uri, d, p_all_data);
}
}
void assert_no_errors_in(const String &p_path) {
Error err;
String source = FileAccess::get_file_as_string(p_path, &err);
REQUIRE_MESSAGE(err == OK, vformat("Cannot read '%s'", p_path));
GDScriptParser parser;
err = parser.parse(source, p_path, true);
REQUIRE_MESSAGE(err == OK, vformat("Errors while parsing '%s'", p_path));
GDScriptAnalyzer analyzer(&parser);
err = analyzer.analyze();
REQUIRE_MESSAGE(err == OK, vformat("Errors while analyzing '%s'", p_path));
}
inline lsp::Position lsp_pos(int line, int character) {
lsp::Position p;
p.line = line;
p.character = character;
return p;
}
void test_position_roundtrip(lsp::Position p_lsp, GodotPosition p_gd, const PackedStringArray &p_lines) {
GodotPosition actual_gd = GodotPosition::from_lsp(p_lsp, p_lines);
CHECK_EQ(p_gd, actual_gd);
lsp::Position actual_lsp = p_gd.to_lsp(p_lines);
CHECK_EQ(p_lsp, actual_lsp);
}
// Note:
// * Cursor is BETWEEN chars
// * `va|r` -> cursor between `a`&`r`
// * `var`
// ^
// -> Character on `r` -> cursor between `a`&`r`s for tests:
// * Line & Char:
// * LSP: both 0-based
// * Godot: both 1-based
TEST_SUITE("[Modules][GDScript][LSP]") {
TEST_CASE("Can convert positions to and from Godot") {
String code = R"(extends Node
var member := 42
func f():
var value := 42
return value + member)";
PackedStringArray lines = code.split("\n");
SUBCASE("line after end") {
lsp::Position lsp = lsp_pos(7, 0);
GodotPosition gd(8, 1);
test_position_roundtrip(lsp, gd, lines);
}
SUBCASE("first char in first line") {
lsp::Position lsp = lsp_pos(0, 0);
GodotPosition gd(1, 1);
test_position_roundtrip(lsp, gd, lines);
}
SUBCASE("with tabs") {
// On `v` in `value` in `var value := ...`.
lsp::Position lsp = lsp_pos(5, 6);
GodotPosition gd(6, 13);
test_position_roundtrip(lsp, gd, lines);
}
SUBCASE("doesn't fail with column outside of character length") {
lsp::Position lsp = lsp_pos(2, 100);
GodotPosition::from_lsp(lsp, lines);
GodotPosition gd(3, 100);
gd.to_lsp(lines);
}
SUBCASE("doesn't fail with line outside of line length") {
lsp::Position lsp = lsp_pos(200, 100);
GodotPosition::from_lsp(lsp, lines);
GodotPosition gd(300, 100);
gd.to_lsp(lines);
}
SUBCASE("special case: negative line for root class") {
GodotPosition gd(-1, 0);
lsp::Position expected = lsp_pos(0, 0);
lsp::Position actual = gd.to_lsp(lines);
CHECK_EQ(actual, expected);
}
SUBCASE("special case: lines.length() + 1 for root class") {
GodotPosition gd(lines.size() + 1, 0);
lsp::Position expected = lsp_pos(lines.size(), 0);
lsp::Position actual = gd.to_lsp(lines);
CHECK_EQ(actual, expected);
}
}
TEST_CASE("[workspace][resolve_symbol]") {
GDScriptLanguageProtocol *proto = initialize(root);
REQUIRE(proto);
Ref<GDScriptWorkspace> workspace = GDScriptLanguageProtocol::get_singleton()->get_workspace();
{
String path = "res://lsp/local_variables.gd";
assert_no_errors_in(path);
String uri = workspace->get_file_uri(path);
Vector<InlineTestData> all_test_data = read_tests(path);
SUBCASE("Can get correct ranges for public variables") {
Vector<InlineTestData> test_data = filter_ref_towards(all_test_data, "member");
test_resolve_symbols(uri, test_data, all_test_data);
}
SUBCASE("Can get correct ranges for local variables") {
Vector<InlineTestData> test_data = filter_ref_towards(all_test_data, "test");
test_resolve_symbols(uri, test_data, all_test_data);
}
SUBCASE("Can get correct ranges for local parameters") {
Vector<InlineTestData> test_data = filter_ref_towards(all_test_data, "arg");
test_resolve_symbols(uri, test_data, all_test_data);
}
}
SUBCASE("Can get correct ranges for indented variables") {
String path = "res://lsp/indentation.gd";
assert_no_errors_in(path);
String uri = workspace->get_file_uri(path);
Vector<InlineTestData> all_test_data = read_tests(path);
test_resolve_symbols(uri, all_test_data, all_test_data);
}
SUBCASE("Can get correct ranges for scopes") {
String path = "res://lsp/scopes.gd";
assert_no_errors_in(path);
String uri = workspace->get_file_uri(path);
Vector<InlineTestData> all_test_data = read_tests(path);
test_resolve_symbols(uri, all_test_data, all_test_data);
}
SUBCASE("Can get correct ranges for lambda") {
String path = "res://lsp/lambdas.gd";
assert_no_errors_in(path);
String uri = workspace->get_file_uri(path);
Vector<InlineTestData> all_test_data = read_tests(path);
test_resolve_symbols(uri, all_test_data, all_test_data);
}
SUBCASE("Can get correct ranges for inner class") {
String path = "res://lsp/class.gd";
assert_no_errors_in(path);
String uri = workspace->get_file_uri(path);
Vector<InlineTestData> all_test_data = read_tests(path);
test_resolve_symbols(uri, all_test_data, all_test_data);
}
SUBCASE("Can get correct ranges for inner class") {
String path = "res://lsp/enums.gd";
assert_no_errors_in(path);
String uri = workspace->get_file_uri(path);
Vector<InlineTestData> all_test_data = read_tests(path);
test_resolve_symbols(uri, all_test_data, all_test_data);
}
SUBCASE("Can get correct ranges for shadowing & shadowed variables") {
String path = "res://lsp/shadowing_initializer.gd";
assert_no_errors_in(path);
String uri = workspace->get_file_uri(path);
Vector<InlineTestData> all_test_data = read_tests(path);
test_resolve_symbols(uri, all_test_data, all_test_data);
}
SUBCASE("Can get correct ranges for properties and getter/setter") {
String path = "res://lsp/properties.gd";
assert_no_errors_in(path);
String uri = workspace->get_file_uri(path);
Vector<InlineTestData> all_test_data = read_tests(path);
test_resolve_symbols(uri, all_test_data, all_test_data);
}
memdelete(proto);
finish_language();
}
}
} // namespace GDScriptTests
#endif // TOOLS_ENABLED
#endif // TEST_LSP_H
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