Used to illustrate finding test points

InMemoryDirectory.ts

export class InMemoryDirectory {
    private readonly elements: Element[];

    constructor() {
        this.elements = [];
    }

    public addElement(newElement: Element): void {
        this.elements.push(newElement);
    }

    public generateIndex(): void {
        const index = new Element("index");
        for (const element of this.elements) {
            index.addText(element.getName() + "\n");
        }
        this.addElement(index);
    }

    public getElementCount(): number {
        return this.elements.length;
    }

    public getElement(name: string): Element | null {
        for (const element of this.elements) {
            if (element.getName() === name) {
                return element;
            }
        }
        return null;
    }
}