alsatian-test/alsatian

import { Warner } from "./warn";

function getStack() {
    return new Error().stack?.split("\n").map(stackLine => {
        const STACK_ITEMS = stackLine
            .replace(/^\s*at (.+) \((.+):\d+:\d+\)$/, "$1 $2")
            .split(" ");

        return {
            functionName: STACK_ITEMS[0],
            filePath: STACK_ITEMS[1]
        };
    });
}

export interface ILog {
    value: string;
    stack: Array<IStackDetail>;
}

export interface IStackDetail {
    functionName: string;
    filePath: string;
}

export class Logger {
    public static readonly LOGS: Array<ILog> = [];

    public static log(value: string) {
        Warner.warn(
            "The log function may cause tests to be slow and should only be used for debugging."
        );

        Logger.LOGS.push({
            value,
            stack: getStack() || []
        });
    }
}