@n1k1t/unit-generator/lib/src/models/spec.js

Coverage based unit tests AI generator

"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    var desc = Object.getOwnPropertyDescriptor(m, k);
    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
      desc = { enumerable: true, get: function() { return m[k]; } };
    }
    Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
    var ownKeys = function(o) {
        ownKeys = Object.getOwnPropertyNames || function (o) {
            var ar = [];
            for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
            return ar;
        };
        return ownKeys(o);
    };
    return function (mod) {
        if (mod && mod.__esModule) return mod;
        var result = {};
        if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
        __setModuleDefault(result, mod);
        return result;
    };
})();
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.Spec = void 0;
const lodash_1 = __importDefault(require("lodash"));
const typescript = __importStar(require("recast/parsers/typescript"));
const prettier = __importStar(require("prettier"));
const babel = __importStar(require("recast/parsers/babel-ts"));
const recast = __importStar(require("recast"));
const utils_1 = require("../utils");
const file_1 = require("./file");
const env_1 = __importDefault(require("../env"));
class Spec extends file_1.File {
    constructor() {
        super(...arguments);
        this.imports = [];
        this.helpers = [];
        this.tests = [];
    }
    /** Runs `prettier` over the spec file */
    async pretty() {
        const options = await prettier.resolveConfig(this.path, { editorconfig: true }).catch(() => null);
        const formatted = await prettier
            .format(this.content, { printWidth: 120, filepath: this.path, ...(options ?? {}) })
            .catch(() => null);
        if (formatted) {
            await this.write(formatted);
        }
    }
    parse() {
        const nodes = this.extractAstNodes();
        const { imports, helpers } = nodes.reduce((acc, node) => {
            if (node.type === 'ExpressionStatement') {
                return acc;
            }
            if (node.type === 'ImportDeclaration') {
                acc.imports.push(recast.print(node).code);
                return acc;
            }
            if (node.type === 'FunctionDeclaration' || node.type === 'ClassDeclaration') {
                acc.helpers.push(recast.print(node).code);
                return acc;
            }
            if (node.type === 'VariableDeclaration') {
                const declarator = node.declarations.find((nested) => nested.type === 'VariableDeclarator');
                declarator?.init?.type === 'CallExpression' && lodash_1.default.get(declarator.init.callee, 'name') === 'require'
                    ? acc.imports.push(recast.print(node).code)
                    : acc.helpers.push(recast.print(node).code);
            }
            return acc;
        }, {
            imports: (0, utils_1.cast)([]),
            helpers: (0, utils_1.cast)([]),
        });
        this.tests = this.extractTests(nodes);
        this.imports = imports;
        this.helpers = helpers;
        return this;
    }
    async write(content) {
        await super.write(content);
        this.parse();
    }
    async refresh() {
        await super.refresh();
        this.parse();
    }
    extractAstNodes() {
        try {
            const ast = recast.parse(this.content, { parser: ['js', 'ts'].includes(this.lang) ? typescript : babel });
            return ast.program.body;
        }
        catch (error) {
            return [];
        }
    }
    extractTests(nodes, prefix = '') {
        return nodes
            .filter((node) => node.type === 'ExpressionStatement' && node.expression.type === 'CallExpression')
            .reduce((acc, node) => {
            const { expression } = node;
            const name = lodash_1.default.get(expression, 'callee.name');
            if (name === 'it' || name === 'test') {
                const title = lodash_1.default.get(expression, 'arguments')[0];
                const value = lodash_1.default.get(title, 'value', '');
                const start = 'start' in node ? node.start : null;
                const end = 'end' in node ? node.end : null;
                const content = (typeof start === 'number' && typeof end === 'number')
                    ? this.content.substring(start, end)
                    : recast.print(node).code;
                acc.push({
                    title: prefix ? `${prefix} ${value}` : value,
                    content: content.replace(`${env_1.default.marker}\n`, ''),
                });
            }
            if (name === 'describe') {
                const [title, content] = lodash_1.default.get(expression, 'arguments');
                const value = lodash_1.default.get(title, 'value', '');
                const body = lodash_1.default.get(content, 'body.body');
                if (Array.isArray(body)) {
                    acc.push(...this.extractTests(body, prefix ? `${prefix} ${value}` : value));
                }
            }
            return acc;
        }, []);
    }
    static async build(location) {
        const file = await file_1.File.build(location);
        const cobertura = new Spec(file);
        return cobertura.parse();
    }
}
exports.Spec = Spec;
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