test: fails to uninstall Next LS

src/test/suite/extension.test.ts

@@ -9,11 +9,12 @@ import * as myExtension from "../../extension.js";
 import * as uninstall from "../../commands/uninstall.js";
 import * as sinon from "sinon";
 
+// TODO: should extract the tests to the directory of the file under test
 suite("Extension Test Suite", () => {
   vscode.window.showInformationMessage("Start all tests.");
   let showInformationMessage;
 
-  setup(function () {
+  setup(function() {
     fs.rmSync("./test-bin", { recursive: true, force: true });
     showInformationMessage = sinon
       .stub(vscode.window, "showInformationMessage")
@@ -24,18 +25,19 @@ suite("Extension Test Suite", () => {
       );
   });
 
-  teardown(function () {
+  teardown(function() {
     sinon.restore();
   });
 
-  test("downloads Next LS", async function () {
+  // TODO: should probably mock out the api calls to github
+  test("downloads Next LS", async function() {
     fs.mkdirSync("./test-bin", { recursive: true });
 
     let result = await myExtension.ensureNextLSDownloaded("test-bin");
     assert.equal(path.normalize(result), path.normalize("test-bin/nextls"));
   });
 
-  test("uninstalls Next LS", async function () {
+  test("uninstalls Next LS", async function() {
     fs.mkdirSync("./test-bin", { recursive: true });
     fs.writeFileSync("./test-bin/nextls", "hello word");
 
@@ -46,4 +48,14 @@ suite("Extension Test Suite", () => {
       `Uninstalled Next LS from ${path.normalize("test-bin/nextls")}`
     );
   });
+
+  test("fails to uninstalls Next LS", async function() {
+    let showErrorMessage = sinon.stub(vscode.window, "showErrorMessage");
+    await uninstall.run("./test-bin");
+
+    assert.equal(
+      showErrorMessage.getCall(0).args[0],
+      `Failed to uninstall Next LS from ${path.normalize("test-bin/nextls")} due to Error: ENOENT: no such file or directory, lstat 'test-bin/nextls'`
+    );
+  });
 });