rwsdk/dist/vite/directiveModulesDevPlugin.test.mjs

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import { describe, expect, it } from "vitest";
import { generateAppBarrelContent, generateVendorBarrelContent, } from "./directiveModulesDevPlugin.mjs";
describe("directiveModulesDevPlugin helpers", () => {
    const projectRootDir = "/Users/test/project";
    describe("generateVendorBarrelContent", () => {
        it("should generate correct content for vendor files", () => {
            const files = new Set([
                "node_modules/lib-a/index.js",
                "src/app.js",
                "node_modules/lib-b/component.tsx",
            ]);
            const content = generateVendorBarrelContent(files, projectRootDir);
            const expected = `import * as M0 from '${projectRootDir}/node_modules/lib-a/index.js';
import * as M1 from '${projectRootDir}/node_modules/lib-b/component.tsx';

export default {
  '/node_modules/lib-a/index.js': M0,
  '/node_modules/lib-b/component.tsx': M1,
};`;
            expect(content).toEqual(expected);
        });
        it("should return empty content if no vendor files", () => {
            const files = new Set(["src/app.js", "src/component.tsx"]);
            const content = generateVendorBarrelContent(files, projectRootDir);
            expect(content).toEqual("\n\nexport default {\n\n};");
        });
        it("should handle an empty file set", () => {
            const files = new Set();
            const content = generateVendorBarrelContent(files, projectRootDir);
            expect(content).toEqual("\n\nexport default {\n\n};");
        });
        it("should exclude files under optimizeDeps.exclude roots", () => {
            const files = new Set([
                "node_modules/lib-a/index.js",
                "node_modules/lib-b/component.tsx",
            ]);
            const excludedRoots = [`${projectRootDir}/node_modules/lib-a`];
            const content = generateVendorBarrelContent(files, projectRootDir, excludedRoots);
            const expected = `import * as M0 from '${projectRootDir}/node_modules/lib-b/component.tsx';

export default {
  '/node_modules/lib-b/component.tsx': M0,
};`;
            expect(content).toEqual(expected);
            expect(content).not.toContain("lib-a");
        });
    });
    describe("generateAppBarrelContent", () => {
        it("should generate correct content for app files", () => {
            const files = new Set([
                "src/app.js",
                "node_modules/lib-a/index.js",
                "src/component.tsx",
            ]);
            const content = generateAppBarrelContent(files, projectRootDir);
            const expected = `import "${projectRootDir}/src/app.js";
import "${projectRootDir}/src/component.tsx";`;
            expect(content).toEqual(expected);
        });
        it("should return empty content if no app files", () => {
            const files = new Set([
                "node_modules/lib-a/index.js",
                "node_modules/lib-b/component.tsx",
            ]);
            const content = generateAppBarrelContent(files, projectRootDir);
            expect(content).toEqual("");
        });
        it("should handle an empty file set", () => {
            const files = new Set();
            const content = generateAppBarrelContent(files, projectRootDir);
            expect(content).toEqual("");
        });
        it("should include excluded node_modules files in the app barrel", () => {
            const files = new Set([
                "src/app.js",
                "node_modules/lib-a/index.js",
                "src/component.tsx",
            ]);
            const excludedRoots = [`${projectRootDir}/node_modules/lib-a`];
            const content = generateAppBarrelContent(files, projectRootDir, excludedRoots);
            const expected = `import "${projectRootDir}/src/app.js";
import "${projectRootDir}/node_modules/lib-a/index.js";
import "${projectRootDir}/src/component.tsx";`;
            expect(content).toEqual(expected);
        });
        it("should include excluded Vite-style /node_modules files in the app barrel", () => {
            const files = new Set([
                "/src/app.js",
                "/node_modules/lib-a/index.js",
                "/src/component.tsx",
            ]);
            const excludedRoots = [`${projectRootDir}/node_modules/lib-a`];
            const content = generateAppBarrelContent(files, projectRootDir, excludedRoots);
            const expected = `import "${projectRootDir}/src/app.js";
import "${projectRootDir}/node_modules/lib-a/index.js";
import "${projectRootDir}/src/component.tsx";`;
            expect(content).toEqual(expected);
        });
        it("should keep transitive node_modules files in the vendor barrel unless they are also excluded", () => {
            const files = new Set([
                "/node_modules/lib-a/index.js",
                "/node_modules/lib-a-utils/index.js",
            ]);
            const excludedRoots = [`${projectRootDir}/node_modules/lib-a`];
            const vendorContent = generateVendorBarrelContent(files, projectRootDir, excludedRoots);
            expect(vendorContent).toContain("lib-a-utils");
            expect(vendorContent).not.toContain("lib-a/index");
            const appContent = generateAppBarrelContent(files, projectRootDir, excludedRoots);
            expect(appContent).toContain("lib-a/index");
            expect(appContent).not.toContain("lib-a-utils");
        });
    });
});