@fidian/metalsmith-less/test/index.js

A LESS plugin for Metalsmith

var assertDir = require("assert-dir-equal");
var less = require("../");
var Metalsmith = require("metalsmith");

function checkDirFactory(done, actual, expected) {
    return (err) => {
        if (err) return done(err);

        try {
            assertDir(actual, expected);
        } catch (err) {
            console.log("err", err);
            return done(err);
        }

        return done(null);
    };
}

describe("the plugin", function () {
    it("should convert less to css", function (done) {
        new Metalsmith("test/fixtures/basic")
            .use(less())
            .build(
                checkDirFactory(
                    done,
                    "test/fixtures/basic/build",
                    "test/fixtures/basic/expected"
                )
            );
    });

    it("should convert imported files", function (done) {
        new Metalsmith("test/fixtures/import")
            .use(
                less({
                    pattern: "less/index.less",
                    render: {
                        paths: ["test/fixtures/import/src/less"]
                    }
                })
            )
            .build(
                checkDirFactory(
                    done,
                    "test/fixtures/import/build",
                    "test/fixtures/import/expected"
                )
            );
    });

    it("should create source map", function (done) {
        new Metalsmith("test/fixtures/source-map")
            .use(
                less({
                    pattern: ["less/entry-1.less", "less/entry-2.less"],
                    render: {
                        paths: ["test/fixtures/source-map/src/less"]
                    },
                    useDynamicSourceMap: true
                })
            )
            .build(
                checkDirFactory(
                    done,
                    "test/fixtures/source-map/build",
                    "test/fixtures/source-map/expected"
                )
            );
    });

    it("preserves source files by default", function (done) {
        new Metalsmith("test/fixtures/preserve-source")
            .use(less())
            .build(
                checkDirFactory(
                    done,
                    "test/fixtures/preserve-source/build",
                    "test/fixtures/preserve-source/expected"
                )
            );
    });

    it("removes source files", function (done) {
        new Metalsmith("test/fixtures/remove-source")
            .use(
                less({
                    removeSource: true
                })
            )
            .build(
                checkDirFactory(
                    done,
                    "test/fixtures/remove-source/build",
                    "test/fixtures/remove-source/expected"
                )
            );
    });
});