Rely on NodeJS API of Stylelint to execute CSS rules (#221)

1 files changed, 51 insertions, 0 deletions

diff --git a/sonar-css-plugin/css-bundle/tests/server-mock-stylelint.test.ts b/sonar-css-plugin/css-bundle/tests/server-mock-stylelint.test.ts
new file mode 100644
index 0000000..f7df176
--- /dev/null
+++ b/sonar-css-plugin/css-bundle/tests/server-mock-stylelint.test.ts
@@ -0,0 +1,51 @@
+import { start, setLogHandlersForTests } from "../src/server";
+import { Server } from "http";
+import * as path from "path";
+import { promisify } from "util";
+import * as stylelint from "stylelint";
+import { postToServer } from "./utils";
+
+const filePath = path.join(__dirname, "fixtures", "file.css");
+
+const request = JSON.stringify({
+  filePath,
+  configFile: path.join(__dirname, "fixtures", "stylelintconfig.json")
+});
+
+jest.mock("stylelint");
+
+describe("server", () => {
+  let server: Server;
+  let close: () => Promise<void>;
+  const logSpy = jest.fn();
+  const errorSpy = jest.fn();
+
+  beforeAll(async () => {
+    setLogHandlersForTests(logSpy, errorSpy);
+    server = await start();
+    close = promisify(server.close.bind(server));
+  });
+
+  afterAll(async () => {
+    jest.restoreAllMocks();
+    await close();
+  });
+
+  it("should not return issues for not original file", async () => {
+    (stylelint.lint as any).mockResolvedValue({
+      results: [{ source: "foo.bar" }]
+    });
+    const response = await postToServer(request, "/analyze", server);
+    expect(JSON.parse(response)).toEqual([]);
+    expect(logSpy).toHaveBeenCalledWith(
+      `DEBUG For file [${filePath}] received issues with [foo.bar] as a source. They will not be reported.`
+    );
+  });
+
+  it("should not return issues when failed promise returned", async () => {
+    (stylelint.lint as any).mockRejectedValue("some reason");
+    const response = await postToServer(request, "/analyze", server);
+    expect(JSON.parse(response)).toEqual([]);
+    expect(errorSpy).toHaveBeenCalledWith("some reason");
+  });
+});