test: add tests to language service

packages/language-service/src/features/__fixtures__/hover.html

@@ -0,0 +1,3 @@
+<!-- ok with: default from "./hover.viewmodel" -->
+<p data-bind="text: hello"></p>
+<!-- /ok -->

packages/language-service/src/features/__fixtures__/hover.viewmodel.ts

@@ -0,0 +1,3 @@
+export default class {
+  hello = "hello";
+}

packages/language-service/src/features/hover.spec.ts

@@ -0,0 +1,41 @@
+import { LanguageService } from "../index.js";
+import { readFile } from "node:fs/promises";
+import { fileURLToPath } from "node:url";
+
+describe("hover", () => {
+  let service: LanguageService;
+  let fileName: string;
+
+  beforeAll(async () => {
+    service = new LanguageService({
+      worker: false,
+    });
+    fileName = fileURLToPath(
+      new URL("__fixtures__/hover.html", import.meta.url),
+    );
+    const text = await readFile(fileName, "utf8");
+    await service.openDocument(fileName, text);
+  });
+
+  it("provides hover details for bindings (name)", async () => {
+    const hover = await service.getHover({
+      fileName: fileName,
+      position: {
+        line: 1,
+        column: 17,
+      },
+    });
+    expect(hover).not.toBe(null);
+  });
+
+  it("provides hover details for viewmodel property", async () => {
+    const hover = await service.getHover({
+      fileName: fileName,
+      position: {
+        line: 1,
+        column: 23,
+      },
+    });
+    expect(hover).not.toBe(null);
+  });
+});

packages/language-service/tsconfig.lib.json

@@ -1,4 +1,5 @@
 {
   "extends": ["@tools/tsconfig/node.json"],
-  "include": ["src"]
+  "include": ["src"],
+  "exclude": ["src/**/*.spec.ts", "src/**/*.test.ts", "**/__fixtures__"]
 }