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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_nodes,
get_relationships,
run_updater,
)
@pytest.fixture
def javascript_classes_project(temp_repo: Path) -> Path:
"""Create a comprehensive JavaScript project with all class patterns."""
project_path = temp_repo / "javascript_classes_test"
project_path.mkdir()
(project_path / "src").mkdir()
(project_path / "utils").mkdir()
(project_path / "models").mkdir()
(project_path / "src" / "base.js").write_text("export class BaseClass {}")
(project_path / "utils" / "helpers.js").write_text(
"export function validateId(id) { return id > 0; }"
)
return project_path
def test_basic_class_declarations(
javascript_classes_project: Path,
mock_ingestor: MagicMock,
) -> None:
"""Test basic ES6 class declaration parsing."""
test_file = javascript_classes_project / "basic_classes.js"
test_file.write_text(
"""
// Basic class declaration
class Person {
constructor(name, age) {
this.name = name;
this.age = age;
}
greet() {
return `Hello, I'm ${this.name}`;
}
getAge() {
return this.age;
}
setAge(newAge) {
this.age = newAge;
}
}
// Class with static methods
class MathUtils {
static add(a, b) {
return a + b;
}
static multiply(a, b) {
return a * b;
}
static PI = 3.14159;
static getCircleArea(radius) {
return this.PI * radius * radius;
}
}
// Class with getters and setters
class Rectangle {
constructor(width, height) {
this._width = width;
this._height = height;
}
get width() {
return this._width;
}
set width(value) {
if (value > 0) {
this._width = value;
}
}
get height() {
return this._height;
}
set height(value) {
if (value > 0) {
this._height = value;
}
}
get area() {
return this.width * this.height;
}
get perimeter() {
return 2 * (this.width + this.height);
}
}
// Class with complex methods
class DataProcessor {
constructor() {
this.cache = new Map();
}
async processData(data) {
const processed = await this.transform(data);
return this.validate(processed);
}
transform(data) {
return data.map(item => ({
...item,
processed: true,
timestamp: Date.now()
}));
}
validate(data) {
return data.filter(item => item.id && item.name);
}
clearCache() {
this.cache.clear();
}
}
// Using classes
const person = new Person('Alice', 30);
const greeting = person.greet();
const age = person.getAge();
person.setAge(31);
const sum = MathUtils.add(5, 3);
const area = MathUtils.getCircleArea(10);
const rect = new Rectangle(10, 20);
const rectArea = rect.area;
rect.width = 15;
const processor = new DataProcessor();
const result = processor.processData([
{ id: 1, name: 'Item 1' },
{ id: 2, name: 'Item 2' }
]);
"""
)
run_updater(javascript_classes_project, mock_ingestor)
project_name = javascript_classes_project.name
expected_classes = [
f"{project_name}.basic_classes.Person",
f"{project_name}.basic_classes.MathUtils",
f"{project_name}.basic_classes.Rectangle",
f"{project_name}.basic_classes.DataProcessor",
]
created_classes = get_node_names(mock_ingestor, "Class")
for expected_qn in expected_classes:
assert expected_qn in created_classes, f"Missing class: {expected_qn}"
expected_methods = [
f"{project_name}.basic_classes.Person.constructor",
f"{project_name}.basic_classes.Person.greet",
f"{project_name}.basic_classes.Person.getAge",
f"{project_name}.basic_classes.Person.setAge",
f"{project_name}.basic_classes.MathUtils.add",
f"{project_name}.basic_classes.MathUtils.multiply",
f"{project_name}.basic_classes.MathUtils.getCircleArea",
f"{project_name}.basic_classes.Rectangle.constructor",
f"{project_name}.basic_classes.DataProcessor.processData",
f"{project_name}.basic_classes.DataProcessor.transform",
f"{project_name}.basic_classes.DataProcessor.validate",
]
created_methods = get_node_names(mock_ingestor, "Method")
found_methods = [method for method in expected_methods if method in created_methods]
assert len(found_methods) >= 8, (
f"Expected at least 8 methods, found {len(found_methods)}: {found_methods}"
)
def test_class_inheritance(
javascript_classes_project: Path,
mock_ingestor: MagicMock,
) -> None:
"""Test class inheritance patterns with extends and super()."""
test_file = javascript_classes_project / "class_inheritance.js"
test_file.write_text(
"""
// Base class
class Animal {
constructor(name, species) {
this.name = name;
this.species = species;
}
speak() {
return `${this.name} makes a sound`;
}
move() {
return `${this.name} moves`;
}
getInfo() {
return `${this.name} is a ${this.species}`;
}
}
// Single inheritance
class Dog extends Animal {
constructor(name, breed) {
super(name, 'dog');
this.breed = breed;
}
speak() {
return `${this.name} barks`;
}
fetch() {
return `${this.name} fetches the ball`;
}
wagTail() {
return `${this.name} wags tail`;
}
}
// Another inheritance level
class Poodle extends Dog {
constructor(name, size) {
super(name, 'poodle');
this.size = size;
}
speak() {
return `${this.name} yips elegantly`;
}
getGroomed() {
return `${this.name} gets a fancy haircut`;
}
}
// Different inheritance branch
class Cat extends Animal {
constructor(name, breed) {
super(name, 'cat');
this.breed = breed;
}
speak() {
return `${this.name} meows`;
}
climb() {
return `${this.name} climbs a tree`;
}
purr() {
return `${this.name} purrs contentedly`;
}
}
// Class with method overrides and super calls
class Bird extends Animal {
constructor(name, canFly = true) {
super(name, 'bird');
this.canFly = canFly;
}
speak() {
return `${this.name} chirps`;
}
move() {
if (this.canFly) {
return super.move() + ' by flying';
}
return super.move() + ' by walking';
}
fly() {
if (this.canFly) {
return `${this.name} soars through the sky`;
}
return `${this.name} cannot fly`;
}
}
// Class inheriting from Bird
class Eagle extends Bird {
constructor(name) {
super(name, true);
this.isRaptor = true;
}
hunt() {
return `${this.name} hunts for prey`;
}
fly() {
return super.fly() + ' with powerful wings';
}
}
// Using inheritance
const animal = new Animal('Generic', 'unknown');
const dog = new Dog('Buddy', 'golden retriever');
const poodle = new Poodle('Fifi', 'standard');
const cat = new Cat('Whiskers', 'tabby');
const bird = new Bird('Tweety', true);
const eagle = new Eagle('Majestic');
// Calling methods that demonstrate inheritance
const animalSound = animal.speak();
const dogSound = dog.speak(); // overridden
const poodleSound = poodle.speak(); // double override
const catSound = cat.speak(); // overridden
const birdMovement = bird.move(); // uses super
const eagleFlight = eagle.fly(); // uses super
const dogInfo = dog.getInfo(); // inherited from Animal
const poodleFetch = poodle.fetch(); // inherited from Dog
const eagleHunt = eagle.hunt(); // Eagle specific
"""
)
run_updater(javascript_classes_project, mock_ingestor)
project_name = javascript_classes_project.name
expected_inherits = [
(
("Class", "qualified_name", f"{project_name}.class_inheritance.Dog"),
("Class", "qualified_name", f"{project_name}.class_inheritance.Animal"),
),
(
("Class", "qualified_name", f"{project_name}.class_inheritance.Poodle"),
("Class", "qualified_name", f"{project_name}.class_inheritance.Dog"),
),
(
("Class", "qualified_name", f"{project_name}.class_inheritance.Cat"),
("Class", "qualified_name", f"{project_name}.class_inheritance.Animal"),
),
(
("Class", "qualified_name", f"{project_name}.class_inheritance.Bird"),
("Class", "qualified_name", f"{project_name}.class_inheritance.Animal"),
),
(
("Class", "qualified_name", f"{project_name}.class_inheritance.Eagle"),
("Class", "qualified_name", f"{project_name}.class_inheritance.Bird"),
),
]
relationship_calls = [
call
for call in mock_ingestor.ensure_relationship_batch.call_args_list
if len(call[0]) >= 3 and call[0][1] == "INHERITS"
]
for expected_child, expected_parent in expected_inherits:
found = any(
call[0][0] == expected_child and call[0][2] == expected_parent
for call in relationship_calls
)
assert found, (
f"Missing INHERITS relationship: "
f"{expected_child[2]} INHERITS {expected_parent[2]}"
)
call_relationships = [
call
for call in mock_ingestor.ensure_relationship_batch.call_args_list
if len(call[0]) >= 3 and call[0][1] == "CALLS"
]
super_calls = [
call
for call in call_relationships
if "constructor" in call.args[0][2]
or "move" in call.args[0][2]
or "fly" in call.args[0][2]
]
assert len(super_calls) >= 3, (
f"Expected at least 3 super() calls, found {len(super_calls)}"
)
def test_static_methods_and_properties(
javascript_classes_project: Path,
mock_ingestor: MagicMock,
) -> None:
"""Test static methods and static properties in classes."""
test_file = javascript_classes_project / "static_features.js"
test_file.write_text(
"""
// Class with static methods and properties
class MathHelper {
static PI = 3.14159;
static E = 2.71828;
static add(a, b) {
return a + b;
}
static subtract(a, b) {
return a - b;
}
static multiply(a, b) {
return a * b;
}
static divide(a, b) {
if (b === 0) {
throw new Error('Division by zero');
}
return a / b;
}
static circleArea(radius) {
return this.PI * radius * radius;
}
static circleCircumference(radius) {
return 2 * this.PI * radius;
}
// Static method calling other static methods
static calculateCircleStats(radius) {
return {
area: this.circleArea(radius),
circumference: this.circleCircumference(radius),
diameter: this.multiply(radius, 2)
};
}
}
// Class with static factory methods
class User {
constructor(name, email, role) {
this.name = name;
this.email = email;
this.role = role;
this.id = User.generateId();
}
static currentId = 0;
static generateId() {
return ++this.currentId;
}
static createAdmin(name, email) {
return new User(name, email, 'admin');
}
static createUser(name, email) {
return new User(name, email, 'user');
}
static createGuest() {
return new User('Guest', '[email protected]', 'guest');
}
static fromJSON(json) {
const data = JSON.parse(json);
return new User(data.name, data.email, data.role);
}
// Instance method
toJSON() {
return JSON.stringify({
id: this.id,
name: this.name,
email: this.email,
role: this.role
});
}
// Static validation method
static isValidEmail(email) {
return email.includes('@') && email.includes('.');
}
}
// Class inheriting static methods
class PowerUser extends User {
constructor(name, email, permissions) {
super(name, email, 'power-user');
this.permissions = permissions;
}
static createWithPermissions(name, email, permissions) {
return new PowerUser(name, email, permissions);
}
// Override static method
static createAdmin(name, email) {
return new PowerUser(name, email, ['admin', 'power-user']);
}
}
// Using static methods and properties
const sum = MathHelper.add(10, 5);
const product = MathHelper.multiply(4, 7);
const piValue = MathHelper.PI;
const circleStats = MathHelper.calculateCircleStats(5);
const admin = User.createAdmin('Alice', '[email protected]');
const user = User.createUser('Bob', '[email protected]');
const guest = User.createGuest();
const isValid = User.isValidEmail('[email protected]');
const powerUser = PowerUser.createAdmin('Charlie', '[email protected]');
const customPowerUser = PowerUser.createWithPermissions('Dave', '[email protected]', ['read', 'write']);
"""
)
run_updater(javascript_classes_project, mock_ingestor)
project_name = javascript_classes_project.name
expected_static_methods = [
f"{project_name}.static_features.MathHelper.add",
f"{project_name}.static_features.MathHelper.subtract",
f"{project_name}.static_features.MathHelper.multiply",
f"{project_name}.static_features.MathHelper.divide",
f"{project_name}.static_features.MathHelper.circleArea",
f"{project_name}.static_features.MathHelper.calculateCircleStats",
f"{project_name}.static_features.User.generateId",
f"{project_name}.static_features.User.createAdmin",
f"{project_name}.static_features.User.createUser",
f"{project_name}.static_features.User.isValidEmail",
f"{project_name}.static_features.PowerUser.createWithPermissions",
]
created_methods = get_node_names(mock_ingestor, "Method")
found_static_methods = [
method for method in expected_static_methods if method in created_methods
]
assert len(found_static_methods) >= 6, (
f"Expected at least 6 static methods, found {len(found_static_methods)}: {found_static_methods}"
)
call_relationships = get_relationships(mock_ingestor, "CALLS")
static_method_calls = [
call
for call in call_relationships
if "static_features" in call.args[0][2]
and any(
static_method in call.args[2][2]
for static_method in expected_static_methods
)
]
assert len(static_method_calls) >= 3, (
f"Expected at least 3 static method calls, found {len(static_method_calls)}"
)
def test_private_fields_and_methods(
javascript_classes_project: Path,
mock_ingestor: MagicMock,
) -> None:
"""Test private fields and methods (# syntax)."""
test_file = javascript_classes_project / "private_features.js"
test_file.write_text(
"""
// Class with private fields and methods
class BankAccount {
#balance = 0;
#accountNumber;
#pin;
constructor(accountNumber, initialBalance = 0, pin) {
this.#accountNumber = accountNumber;
this.#balance = initialBalance;
this.#pin = pin;
}
// Private method
#validatePin(inputPin) {
return this.#pin === inputPin;
}
// Private method for logging
#logTransaction(type, amount) {
console.log(`${type}: $${amount}, New balance: $${this.#balance}`);
}
// Public methods using private fields/methods
deposit(amount, pin) {
if (!this.#validatePin(pin)) {
throw new Error('Invalid PIN');
}
if (amount <= 0) {
throw new Error('Amount must be positive');
}
this.#balance += amount;
this.#logTransaction('Deposit', amount);
return this.#balance;
}
withdraw(amount, pin) {
if (!this.#validatePin(pin)) {
throw new Error('Invalid PIN');
}
if (amount <= 0) {
throw new Error('Amount must be positive');
}
if (amount > this.#balance) {
throw new Error('Insufficient funds');
}
this.#balance -= amount;
this.#logTransaction('Withdrawal', amount);
return this.#balance;
}
getBalance(pin) {
if (!this.#validatePin(pin)) {
throw new Error('Invalid PIN');
}
return this.#balance;
}
getAccountNumber() {
// Only show last 4 digits
return `****${this.#accountNumber.slice(-4)}`;
}
}
// Class with private static fields and methods
class Counter {
static #instanceCount = 0;
#value = 0;
constructor(initialValue = 0) {
this.#value = initialValue;
Counter.#incrementInstanceCount();
}
static #incrementInstanceCount() {
this.#instanceCount++;
}
static getInstanceCount() {
return this.#instanceCount;
}
increment() {
this.#value++;
return this.#value;
}
decrement() {
this.#value--;
return this.#value;
}
getValue() {
return this.#value;
}
reset() {
this.#value = 0;
}
}
// Class inheriting from class with private fields
class SavingsAccount extends BankAccount {
#interestRate;
constructor(accountNumber, initialBalance, pin, interestRate) {
super(accountNumber, initialBalance, pin);
this.#interestRate = interestRate;
}
#calculateInterest() {
// Cannot access parent's private #balance directly
const currentBalance = this.getBalance(this.pin); // Would need pin access
return currentBalance * this.#interestRate;
}
addInterest(pin) {
const interest = this.#calculateInterest();
return this.deposit(interest, pin);
}
getInterestRate() {
return this.#interestRate;
}
}
// Using classes with private features
const account = new BankAccount('123456789', 1000, '1234');
const balance1 = account.deposit(500, '1234');
const balance2 = account.withdraw(200, '1234');
const currentBalance = account.getBalance('1234');
const accountNum = account.getAccountNumber();
const counter1 = new Counter(10);
const counter2 = new Counter(20);
const count1 = counter1.increment();
const count2 = counter2.increment();
const instanceCount = Counter.getInstanceCount();
// Note: Private field access from outside would cause errors
// console.log(account.#balance); // SyntaxError
// account.#validatePin('1234'); // SyntaxError
"""
)
run_updater(javascript_classes_project, mock_ingestor)
project_name = javascript_classes_project.name
expected_classes = [
f"{project_name}.private_features.BankAccount",
f"{project_name}.private_features.Counter",
f"{project_name}.private_features.SavingsAccount",
]
created_classes = get_node_names(mock_ingestor, "Class")
for expected_qn in expected_classes:
assert expected_qn in created_classes, (
f"Missing class with private features: {expected_qn}"
)
expected_methods = [
f"{project_name}.private_features.BankAccount.deposit",
f"{project_name}.private_features.BankAccount.withdraw",
f"{project_name}.private_features.BankAccount.getBalance",
f"{project_name}.private_features.Counter.increment",
f"{project_name}.private_features.Counter.getInstanceCount",
f"{project_name}.private_features.SavingsAccount.addInterest",
]
created_methods = get_node_names(mock_ingestor, "Method")
found_methods = [method for method in expected_methods if method in created_methods]
assert len(found_methods) >= 4, (
f"Expected at least 4 methods in classes with private features, found {len(found_methods)}"
)
def test_class_expressions_and_mixins(
javascript_classes_project: Path,
mock_ingestor: MagicMock,
) -> None:
"""Test class expressions and mixin patterns."""
test_file = javascript_classes_project / "class_expressions.js"
test_file.write_text(
"""
// Anonymous class expression
const Animal = class {
constructor(name) {
this.name = name;
}
speak() {
return `${this.name} makes a sound`;
}
};
// Named class expression
const Vehicle = class Vehicle {
constructor(make, model) {
this.make = make;
this.model = model;
}
getInfo() {
return `${this.make} ${this.model}`;
}
start() {
return `${this.getInfo()} starts`;
}
};
// Class expression assigned to variable
const Shape = class Rectangle {
constructor(width, height) {
this.width = width;
this.height = height;
}
area() {
return this.width * this.height;
}
};
// Mixin function
function Flyable(Base) {
return class extends Base {
fly() {
return `${this.name} flies`;
}
land() {
return `${this.name} lands`;
}
};
}
// Another mixin
function Swimmable(Base) {
return class extends Base {
swim() {
return `${this.name} swims`;
}
dive() {
return `${this.name} dives underwater`;
}
};
}
// Using mixins
class Fish extends Swimmable(Animal) {
constructor(name, species) {
super(name);
this.species = species;
}
speak() {
return `${this.name} makes bubbles`;
}
}
class Bird extends Flyable(Animal) {
constructor(name, wingspan) {
super(name);
this.wingspan = wingspan;
}
speak() {
return `${this.name} chirps`;
}
}
// Multiple mixins
class Duck extends Swimmable(Flyable(Animal)) {
constructor(name) {
super(name);
}
speak() {
return `${this.name} quacks`;
}
}
// Factory function returning class
function createModel(type) {
return class {
constructor(data) {
this.type = type;
this.data = data;
}
getType() {
return this.type;
}
getData() {
return this.data;
}
toString() {
return `${this.type}: ${JSON.stringify(this.data)}`;
}
};
}
// Using class expressions and mixins
const animal = new Animal('Generic');
const car = new Vehicle('Toyota', 'Camry');
const rectangle = new Shape(10, 20);
const fish = new Fish('Nemo', 'clownfish');
const bird = new Bird('Eagle', 6);
const duck = new Duck('Donald');
const fishSound = fish.speak();
const fishSwim = fish.swim();
const birdSound = bird.speak();
const birdFly = bird.fly();
const duckSound = duck.speak();
const duckSwim = duck.swim();
const duckFly = duck.fly();
const UserModel = createModel('User');
const user = new UserModel({ name: 'John', age: 30 });
const userInfo = user.toString();
"""
)
run_updater(javascript_classes_project, mock_ingestor)
class_calls = get_nodes(mock_ingestor, "Class")
class_expression_classes = [
call
for call in class_calls
if "class_expressions" in call[0][1]["qualified_name"]
]
assert len(class_expression_classes) >= 3, (
f"Expected at least 3 class expressions, found {len(class_expression_classes)}"
)
relationship_calls = [
call
for call in mock_ingestor.ensure_relationship_batch.call_args_list
if len(call[0]) >= 3 and call[0][1] == "INHERITS"
]
inheritance_relationships = [
call for call in relationship_calls if "class_expressions" in call[0][0][2]
]
assert len(inheritance_relationships) >= 2, (
f"Expected at least 2 inheritance relationships from mixins, found {len(inheritance_relationships)}"
)
def test_class_comprehensive(
javascript_classes_project: Path,
mock_ingestor: MagicMock,
) -> None:
"""Comprehensive test ensuring all class types create proper relationships."""
test_file = javascript_classes_project / "comprehensive_classes.js"
test_file.write_text(
"""
// Every JavaScript class pattern in one file
// Basic class
class Animal {
constructor(name) {
this.name = name;
}
speak() {
return `${this.name} makes a sound`;
}
}
// Inheritance
class Dog extends Animal {
constructor(name, breed) {
super(name);
this.breed = breed;
}
speak() {
return `${this.name} barks`;
}
fetch() {
return `${this.name} fetches`;
}
}
// Static methods
class MathUtils {
static add(a, b) {
return a + b;
}