Add tests for vscode extension

.github/workflows/check.yml

@@ -94,10 +94,15 @@ jobs:
       - uses: actions/setup-node@v4
         with:
           node-version: "16.x"
-      - run: |
+      - name: Install dependencies
+        run: |
           cd vscode
           npm install
           npm install -g @vscode/vsce
+      - name: Test
+        run: |
+          cd vscode
+          npm test
       - name: Lint
         run: |
           cd vscode

.pre-commit-config.yaml

@@ -11,12 +11,12 @@ repos:
     hooks:
       - id: gitlint
   - repo: https://github.com/crate-ci/typos
-    rev: v1.16.19
+    rev: v1.19.0
     hooks:
       - id: typos
         exclude: "vscode/package-lock.json"
   - repo: https://github.com/igorshubovych/markdownlint-cli
-    rev: v0.37.0
+    rev: v0.39.0
     hooks:
       - id: markdownlint-fix
   - repo: https://github.com/pre-commit/pre-commit-hooks
@@ -29,7 +29,7 @@ repos:
       - id: check-yaml
       - id: check-added-large-files
   - repo: https://github.com/pre-commit/mirrors-prettier
-    rev: v3.0.3
+    rev: v3.1.0
     hooks:
       - id: prettier
         files: (^vscode|\.yml)

vscode/.gitignore

@@ -1,4 +1,5 @@
 # VS Code extension build directories
 node_modules
 out
+coverage
 *.vsix

vscode/__mocks__/vscode.js

@@ -0,0 +1,87 @@
+const languages = {
+  createDiagnosticCollection: jest.fn(),
+};
+
+const StatusBarAlignment = {};
+
+const window = {
+  createStatusBarItem: jest.fn(() => ({
+    show: jest.fn(),
+  })),
+  showErrorMessage: jest.fn(),
+  showWarningMessage: jest.fn(),
+  createTextEditorDecorationType: jest.fn(),
+  createOutputChannel: jest.fn(),
+  showInformationMessage: jest.fn(),
+};
+
+const ConfigurationTarget = {
+  Global: 1,
+};
+
+const workspace = {
+  getConfiguration: jest.fn(),
+  workspaceFolders: [],
+  onDidSaveTextDocument: jest.fn(),
+};
+
+const env = {
+  openExternal: jest.fn(),
+};
+
+const OverviewRulerLane = {
+  Left: null,
+};
+
+const Uri = {
+  file: (f) => f,
+  parse: jest.fn(),
+};
+const Range = jest.fn();
+const Diagnostic = jest.fn();
+const DiagnosticSeverity = { Error: 0, Warning: 1, Information: 2, Hint: 3 };
+const CompletionItem = jest.fn();
+const CodeAction = jest.fn();
+const CodeLens = jest.fn();
+const DocumentLink = jest.fn();
+const CallHierarchyItem = jest.fn();
+const TypeHierarchyItem = jest.fn();
+const SymbolInformation = jest.fn();
+const InlayHint = jest.fn();
+const CancellationError = jest.fn();
+
+const debug = {
+  onDidTerminateDebugSession: jest.fn(),
+  startDebugging: jest.fn(),
+};
+
+const commands = {
+  executeCommand: jest.fn(),
+};
+
+const vscode = {
+  CallHierarchyItem,
+  CancellationError,
+  CodeAction,
+  CodeLens,
+  CompletionItem,
+  ConfigurationTarget,
+  Diagnostic,
+  DiagnosticSeverity,
+  DocumentLink,
+  InlayHint,
+  OverviewRulerLane,
+  Range,
+  StatusBarAlignment,
+  SymbolInformation,
+  TypeHierarchyItem,
+  Uri,
+  commands,
+  debug,
+  env,
+  languages,
+  window,
+  workspace,
+};
+
+module.exports = vscode;

vscode/jest.config.ts

@@ -0,0 +1,9 @@
+module.exports = {
+  preset: "ts-jest",
+  testEnvironment: "node",
+  transform: {
+    "^.+\\.ts?$": "ts-jest",
+  },
+  transformIgnorePatterns: ["<rootDir>/node_modules/"],
+  collectCoverage: true,
+};