@nx/jest/src/generators/configuration/lib/check-for-test-target.js

The Nx Plugin for Jest contains executors and generators allowing your workspace to use the powerful Jest testing capabilities.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.checkForTestTarget = checkForTestTarget;
const devkit_1 = require("@nx/devkit");
function checkForTestTarget(tree, options) {
    const projectConfig = (0, devkit_1.readProjectConfiguration)(tree, options.project);
    if (projectConfig?.targets?.test) {
        throw new Error(`${options.project}: already has a test target set.`);
    }
}