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from pathlib import Path
from unittest.mock import MagicMock
import pytest
from codebase_rag.tests.conftest import get_node_names, get_relationships, run_updater
@pytest.fixture
def cpp_namespaces_project(temp_repo: Path) -> Path:
"""Create a comprehensive C++ project with namespace patterns."""
project_path = temp_repo / "cpp_namespaces_test"
project_path.mkdir()
(project_path / "src").mkdir()
(project_path / "include").mkdir()
return project_path
def test_basic_namespaces(
cpp_namespaces_project: Path,
mock_ingestor: MagicMock,
) -> None:
"""Test basic namespace declarations and usage."""
test_file = cpp_namespaces_project / "basic_namespaces.cpp"
test_file.write_text(
encoding="utf-8",
data="""
#include <iostream>
#include <string>
// Global namespace function
void globalFunction() {
std::cout << "Global function called" << std::endl;
}
// Basic namespace
namespace utils {
void printMessage(const std::string& message) {
std::cout << "Utils: " << message << std::endl;
}
class Logger {
public:
static void log(const std::string& message) {
std::cout << "[LOG] " << message << std::endl;
}
void info(const std::string& message) {
std::cout << "[INFO] " << message << std::endl;
}
void error(const std::string& message) {
std::cout << "[ERROR] " << message << std::endl;
}
};
const int MAX_BUFFER_SIZE = 1024;
double calculateArea(double radius) {
const double PI = 3.14159;
return PI * radius * radius;
}
}
// Another namespace
namespace graphics {
struct Point {
double x, y;
Point(double x = 0, double y = 0) : x(x), y(y) {}
};
struct Color {
int r, g, b;
Color(int r = 0, int g = 0, int b = 0) : r(r), g(g), b(b) {}
};
class Shape {
public:
Shape(const Point& pos, const Color& col) : position_(pos), color_(col) {}
virtual ~Shape() = default;
virtual void draw() const = 0;
virtual double area() const = 0;
Point getPosition() const { return position_; }
Color getColor() const { return color_; }
protected:
Point position_;
Color color_;
};
class Circle : public Shape {
private:
double radius_;
public:
Circle(const Point& pos, const Color& col, double radius)
: Shape(pos, col), radius_(radius) {}
void draw() const override {
std::cout << "Drawing circle at (" << position_.x << ", " << position_.y
<< ") with radius " << radius_ << std::endl;
}
double area() const override {
return utils::calculateArea(radius_); // Cross-namespace call
}
double getRadius() const { return radius_; }
};
}
// Math utilities namespace
namespace math {
namespace constants {
const double PI = 3.141592653589793;
const double E = 2.718281828459045;
}
double add(double a, double b) {
return a + b;
}
double multiply(double a, double b) {
return a * b;
}
class Calculator {
public:
static double compute(double a, double b, char op) {
switch (op) {
case '+': return add(a, b);
case '*': return multiply(a, b);
default: return 0.0;
}
}
double power(double base, int exponent) {
double result = 1.0;
for (int i = 0; i < exponent; ++i) {
result = multiply(result, base);
}
return result;
}
};
}
void demonstrateBasicNamespaces() {
// Global function call
globalFunction();
// Qualified namespace calls
utils::printMessage("Hello from utils namespace");
utils::Logger::log("Static method call");
utils::Logger logger;
logger.info("Instance method call");
logger.error("Error message");
// Cross-namespace usage
graphics::Point origin(0, 0);
graphics::Color red(255, 0, 0);
graphics::Circle circle(origin, red, 5.0);
circle.draw();
double area = circle.area(); // This calls utils::calculateArea internally
std::cout << "Circle area: " << area << std::endl;
// Math namespace usage
double sum = math::add(10.0, 20.0);
double product = math::multiply(5.0, 6.0);
math::Calculator calc;
double power = calc.power(2.0, 8);
double computed = math::Calculator::compute(15.0, 3.0, '+');
std::cout << "Sum: " << sum << std::endl;
std::cout << "Product: " << product << std::endl;
std::cout << "2^8 = " << power << std::endl;
std::cout << "Computed: " << computed << std::endl;
// Access nested namespace
std::cout << "PI from math::constants: " << math::constants::PI << std::endl;
std::cout << "E from math::constants: " << math::constants::E << std::endl;
}
""",
)
run_updater(cpp_namespaces_project, mock_ingestor)
project_name = cpp_namespaces_project.name
expected_classes = [
f"{project_name}.basic_namespaces.utils.Logger",
f"{project_name}.basic_namespaces.graphics.Point",
f"{project_name}.basic_namespaces.graphics.Shape",
f"{project_name}.basic_namespaces.graphics.Circle",
f"{project_name}.basic_namespaces.math.Calculator",
]
created_classes = get_node_names(mock_ingestor, "Class")
missing_classes = set(expected_classes) - created_classes
assert not missing_classes, (
f"Missing expected classes: {sorted(list(missing_classes))}"
)
expected_functions = [
f"{project_name}.basic_namespaces.globalFunction",
f"{project_name}.basic_namespaces.utils.printMessage",
f"{project_name}.basic_namespaces.utils.calculateArea",
f"{project_name}.basic_namespaces.math.add",
f"{project_name}.basic_namespaces.math.multiply",
]
created_functions = get_node_names(mock_ingestor, "Function")
missing_functions = set(expected_functions) - created_functions
assert not missing_functions, (
f"Missing expected functions: {sorted(list(missing_functions))}"
)
def test_using_directives(
cpp_namespaces_project: Path,
mock_ingestor: MagicMock,
) -> None:
"""Test using directives and namespace aliases."""
test_file = cpp_namespaces_project / "using_directives.cpp"
test_file.write_text(
encoding="utf-8",
data="""
#include <iostream>
#include <string>
#include <vector>
namespace company {
namespace project {
namespace module {
class DataProcessor {
public:
void process(const std::string& data) {
std::cout << "Processing: " << data << std::endl;
}
std::vector<std::string> split(const std::string& input, char delimiter) {
std::vector<std::string> result;
// Simplified split implementation
result.push_back(input);
return result;
}
};
void utility_function() {
std::cout << "Utility function called" << std::endl;
}
const int VERSION = 1;
}
}
}
namespace utils {
void helper() {
std::cout << "Helper function" << std::endl;
}
class StringUtils {
public:
static std::string uppercase(const std::string& str) {
std::string result = str;
// Simplified uppercase implementation
return result;
}
static bool isEmpty(const std::string& str) {
return str.empty();
}
};
}
// Using namespace directive
using namespace std;
// Using specific declarations
using utils::helper;
using utils::StringUtils;
// Namespace alias
namespace cpm = company::project::module;
void demonstrateUsingDirectives() {
// Can use std types without std:: prefix due to "using namespace std"
string message = "Hello, World!";
vector<int> numbers = {1, 2, 3, 4, 5};
cout << "Message: " << message << endl;
cout << "Numbers count: " << numbers.size() << endl;
// Use function brought into scope with using declaration
helper(); // Instead of utils::helper()
// Use class brought into scope with using declaration
string upper = StringUtils::uppercase("hello"); // Instead of utils::StringUtils::uppercase
bool empty = StringUtils::isEmpty("");
cout << "Uppercase: " << upper << endl;
cout << "Is empty: " << (empty ? "yes" : "no") << endl;
// Use namespace alias
cpm::DataProcessor processor; // Instead of company::project::module::DataProcessor
processor.process("test data");
auto parts = processor.split("a,b,c", ',');
cout << "Split result count: " << parts.size() << endl;
cpm::utility_function(); // Instead of company::project::module::utility_function
cout << "Version: " << cpm::VERSION << endl;
// Still can use fully qualified names
company::project::module::DataProcessor fullProcessor;
fullProcessor.process("fully qualified");
}
// Scoped using directives
void scopedUsingExample() {
{
using namespace utils;
// Within this scope, can use utils members directly
helper();
string result = StringUtils::uppercase("scoped");
cout << "Scoped result: " << result << endl;
}
// Outside the scope, need qualification again
utils::helper();
utils::StringUtils stringUtils;
}
// Using directive in function
void functionScopedUsing() {
using company::project::module::DataProcessor;
using company::project::module::utility_function;
DataProcessor processor;
processor.process("function scoped");
utility_function();
}
// Class with using declarations
class MyClass {
public:
using ProcessorType = company::project::module::DataProcessor;
using StringType = std::string;
void useTypes() {
ProcessorType processor;
StringType data = "class scoped types";
processor.process(data);
}
private:
ProcessorType processor_;
StringType name_;
};
void demonstrateClassUsing() {
MyClass obj;
obj.useTypes();
}
// Template with using
template<typename T>
class Container {
public:
using value_type = T;
using size_type = size_t;
void add(const value_type& item) {
// Add implementation
cout << "Adding item to container" << endl;
}
size_type size() const {
return 0; // Simplified
}
};
void demonstrateTemplateUsing() {
Container<string> stringContainer;
Container<string>::value_type item = "test";
stringContainer.add(item);
Container<string>::size_type count = stringContainer.size();
cout << "Container size: " << count << endl;
}
""",
)
run_updater(cpp_namespaces_project, mock_ingestor)
project_name = cpp_namespaces_project.name
expected_nested_classes = [
f"{project_name}.using_directives.company.project.module.DataProcessor",
f"{project_name}.using_directives.utils.StringUtils",
f"{project_name}.using_directives.MyClass",
f"{project_name}.using_directives.Container",
]
created_classes = get_node_names(mock_ingestor, "Class")
found_nested_classes = [
cls for cls in expected_nested_classes if cls in created_classes
]
assert len(found_nested_classes) >= 2, (
f"Expected at least 2 nested namespace classes, found {len(found_nested_classes)}: {found_nested_classes}"
)
call_relationships = get_relationships(mock_ingestor, "CALLS")
namespace_calls = [
call
for call in call_relationships
if "using_directives" in call.args[0][2]
and any(
name in call.args[2][2]
for name in ["helper", "process", "utility_function", "uppercase"]
)
]
assert len(namespace_calls) >= 4, (
f"Expected at least 4 namespace-related calls, found {len(namespace_calls)}"
)
def test_anonymous_namespaces(
cpp_namespaces_project: Path,
mock_ingestor: MagicMock,
) -> None:
"""Test anonymous namespaces and internal linkage."""
test_file = cpp_namespaces_project / "anonymous_namespaces.cpp"
test_file.write_text(
encoding="utf-8",
data="""
#include <iostream>
#include <string>
// Anonymous namespace (internal linkage)
namespace {
void internal_function() {
std::cout << "Internal function called" << std::endl;
}
class InternalClass {
public:
void method() {
std::cout << "InternalClass method called" << std::endl;
}
static void static_method() {
std::cout << "InternalClass static method called" << std::endl;
}
};
const int INTERNAL_CONSTANT = 42;
// Nested anonymous namespace
namespace {
void deeply_internal() {
std::cout << "Deeply internal function" << std::endl;
}
}
}
// Named namespace with anonymous namespace inside
namespace outer {
namespace {
void outer_internal() {
std::cout << "Outer internal function" << std::endl;
}
class OuterInternalClass {
public:
void process() {
std::cout << "OuterInternalClass processing" << std::endl;
}
};
}
void public_function() {
std::cout << "Outer public function" << std::endl;
outer_internal(); // Can call anonymous namespace function
}
class PublicClass {
public:
void use_internal() {
OuterInternalClass internal;
internal.process();
}
};
}
// Another file-level anonymous namespace
namespace {
class AnotherInternalClass {
public:
void work() {
std::cout << "AnotherInternalClass working" << std::endl;
}
};
void another_internal_function() {
std::cout << "Another internal function" << std::endl;
}
}
void demonstrateAnonymousNamespaces() {
// Can use anonymous namespace members directly
internal_function();
deeply_internal();
another_internal_function();
InternalClass internal;
internal.method();
InternalClass::static_method();
AnotherInternalClass another;
another.work();
std::cout << "Internal constant: " << INTERNAL_CONSTANT << std::endl;
// Use named namespace with internal anonymous members
outer::public_function(); // This calls outer_internal() internally
outer::PublicClass publicObj;
publicObj.use_internal(); // This uses OuterInternalClass internally
}
// Template in anonymous namespace
namespace {
template<typename T>
class InternalTemplate {
public:
void process(const T& value) {
std::cout << "Processing internal template with value" << std::endl;
}
};
template<typename T>
T internal_max(T a, T b) {
return (a > b) ? a : b;
}
}
void demonstrateInternalTemplates() {
InternalTemplate<int> intTemplate;
intTemplate.process(42);
InternalTemplate<std::string> stringTemplate;
stringTemplate.process("hello");
int max_int = internal_max(10, 20);
double max_double = internal_max(3.14, 2.71);
std::cout << "Max int: " << max_int << std::endl;
std::cout << "Max double: " << max_double << std::endl;
}
// Static vs anonymous namespace comparison
static void static_function() {
std::cout << "Static function (C-style internal linkage)" << std::endl;
}
namespace {
void modern_internal_function() {
std::cout << "Anonymous namespace function (C++ style internal linkage)" << std::endl;
}
}
void compareLinkageStyles() {
static_function(); // C-style internal linkage
modern_internal_function(); // C++ style internal linkage
}
""",
)
run_updater(cpp_namespaces_project, mock_ingestor)
expected_internal_classes = [
"InternalClass",
"OuterInternalClass",
"AnotherInternalClass",
"InternalTemplate",
]
created_classes = get_node_names(mock_ingestor, "Class")
found_internal_classes = [
cls
for cls in created_classes
if any(internal_name in cls for internal_name in expected_internal_classes)
]
assert len(found_internal_classes) >= 2, (
f"Expected at least 2 anonymous namespace classes, found {len(found_internal_classes)}: {found_internal_classes}"
)
expected_internal_functions = [
"internal_function",
"deeply_internal",
"outer_internal",
"another_internal_function",
"static_function",
"modern_internal_function",
]
created_functions = get_node_names(mock_ingestor, "Function")
found_internal_functions = [
func
for func in created_functions
if any(internal_name in func for internal_name in expected_internal_functions)
]
assert len(found_internal_functions) >= 4, (
f"Expected at least 4 internal functions, found {len(found_internal_functions)}: {found_internal_functions}"
)
def test_cpp_namespaces_comprehensive(
cpp_namespaces_project: Path,
mock_ingestor: MagicMock,
) -> None:
"""Comprehensive test ensuring all namespace patterns create proper relationships."""
test_file = cpp_namespaces_project / "comprehensive_namespaces.cpp"
test_file.write_text(
encoding="utf-8",
data="""
// Every C++ namespace pattern in one file
#include <iostream>
#include <string>
// Global namespace
void global_func() {
std::cout << "Global function" << std::endl;
}
// Basic namespace
namespace basic {
void func() {
std::cout << "Basic namespace function" << std::endl;
}
class Class {
public:
void method() {
std::cout << "Basic namespace class method" << std::endl;
}
};
}
// Nested namespaces
namespace outer {
namespace inner {
void nested_func() {
std::cout << "Nested namespace function" << std::endl;
}
class NestedClass {
public:
void process() {
std::cout << "Nested class processing" << std::endl;
}
};
}
void outer_func() {
inner::nested_func(); // Cross-namespace call
}
}
// Anonymous namespace
namespace {
void internal_func() {
std::cout << "Internal function" << std::endl;
}
class InternalClass {
public:
void work() {
std::cout << "Internal class working" << std::endl;
}
};
}
// Using directives
using namespace std;
using basic::Class;
namespace alias = outer::inner;
void demonstrateComprehensiveNamespaces() {
// Global namespace
global_func();
// Basic namespace - qualified calls
basic::func();
basic::Class basicObj;
basicObj.method();
// Nested namespace - qualified calls
outer::inner::nested_func();
outer::inner::NestedClass nestedObj;
nestedObj.process();
// Cross-namespace call
outer::outer_func(); // This calls inner::nested_func internally
// Anonymous namespace - direct calls
internal_func();
InternalClass internalObj;
internalObj.work();
// Using declarations
Class usingObj; // Uses basic::Class
usingObj.method();
// Namespace alias
alias::NestedClass aliasObj;
aliasObj.process();
// std namespace usage (from using namespace std)
string text = "Hello";
cout << text << endl;
}
// Template in namespace
namespace templates {
template<typename T>
class Container {
public:
void store(const T& item) {
cout << "Storing item in namespace template" << endl;
}
};
template<typename T>
T max_value(T a, T b) {
return (a > b) ? a : b;
}
}
// Namespace reopening
namespace basic {
void additional_func() {
cout << "Additional function in reopened namespace" << endl;
}
class AnotherClass {
public:
void work() {
cout << "Another class in reopened namespace" << endl;
}
};
}
void testNamespaceFeatures() {
// Template namespace usage
templates::Container<int> container;
container.store(42);
int max_val = templates::max_value(10, 20);
cout << "Max value: " << max_val << endl;
// Reopened namespace
basic::additional_func();
basic::AnotherClass another;
another.work();
// All namespace types together
basic::func(); // Basic namespace
outer::inner::nested_func(); // Nested namespace
internal_func(); // Anonymous namespace
global_func(); // Global namespace
}
""",
)
run_updater(cpp_namespaces_project, mock_ingestor)
call_relationships = get_relationships(mock_ingestor, "CALLS")
defines_relationships = get_relationships(mock_ingestor, "DEFINES")
comprehensive_calls = [
call
for call in call_relationships
if "comprehensive_namespaces" in call.args[0][2]
]
assert len(comprehensive_calls) >= 12, (
f"Expected at least 12 comprehensive namespace calls, found {len(comprehensive_calls)}"
)
cross_namespace_calls = [
call
for call in comprehensive_calls
if any(
namespace_func in call.args[2][2]
for namespace_func in [
"basic.func",
"inner.nested_func",
"internal_func",
"global_func",
]
)
]
assert len(cross_namespace_calls) >= 4, (
f"Expected at least 4 cross-namespace calls, found {len(cross_namespace_calls)}"
)
assert defines_relationships, "Should still have DEFINES relationships"