Initial commit

packages/core-eslint/rules/feature-must-have-manifest.test.js

@@ -0,0 +1,54 @@
+import { describe, it } from "vitest";
+import { RuleTester } from "eslint";
+import path from "node:path";
+import os from "node:os";
+import fs from "node:fs";
+import rule from "./feature-must-have-manifest.js";
+
+function makeFeatureFixture({ withManifest }) {
+  const repoRoot = fs.mkdtempSync(path.join(os.tmpdir(), "fmm-"));
+  const featureDir = path.join(repoRoot, "packages", "demo");
+  fs.mkdirSync(path.join(featureDir, "src", "application", "use-cases"), { recursive: true });
+  if (withManifest) {
+    fs.writeFileSync(
+      path.join(featureDir, "src", "feature.manifest.ts"),
+      `export const demoManifest = defineFeature({ name: "demo", requiredCores: [], useCases: {}, realtimeChannels: [], jobs: [] } as const);`,
+    );
+  }
+  const useCaseFile = path.join(featureDir, "src", "application", "use-cases", "do-thing.use-case.ts");
+  fs.writeFileSync(useCaseFile, `export const doThingUseCase = () => async () => {};`);
+  return { repoRoot, useCaseFile };
+}
+
+const tester = new RuleTester({ languageOptions: { ecmaVersion: "latest", sourceType: "module" } });
+
+describe("feature-must-have-manifest", () => {
+  it("passes when the feature has a manifest", () => {
+    const { repoRoot, useCaseFile } = makeFeatureFixture({ withManifest: true });
+    tester.run("feature-must-have-manifest", rule, {
+      valid: [
+        {
+          filename: useCaseFile,
+          code: fs.readFileSync(useCaseFile, "utf8"),
+          options: [{ repoRoot }],
+        },
+      ],
+      invalid: [],
+    });
+  });
+
+  it("fires when the feature has no manifest", () => {
+    const { repoRoot, useCaseFile } = makeFeatureFixture({ withManifest: false });
+    tester.run("feature-must-have-manifest", rule, {
+      valid: [],
+      invalid: [
+        {
+          filename: useCaseFile,
+          code: fs.readFileSync(useCaseFile, "utf8"),
+          options: [{ repoRoot }],
+          errors: [{ messageId: "missingManifest" }],
+        },
+      ],
+    });
+  });
+});