test: add unittest for relative path resolution

Author: gnikit

test/tools.test.ts

@@ -1,6 +1,7 @@
 import * as path from 'path';
 import * as assert from 'assert';
-import { shellTask, spawnAsPromise } from '../src/lib/tools';
+import { Uri } from 'vscode';
+import { shellTask, spawnAsPromise, pathRelToAbs } from '../src/lib/tools';
 
 suite('Tools tests', () => {
   test('shellTask returns correct output', async () => {
@@ -49,4 +50,15 @@ suite('Tools tests', () => {
     assert.strictEqual(stdout, 'Hello World!');
     assert.strictEqual(stderr, 'Errors');
   });
+
+  test('Resolve local paths: default workspace', () => {
+    const absPath = pathRelToAbs('./sample.f90');
+    assert.strictEqual(absPath, path.resolve(__dirname, '../../test/fortran/sample.f90'));
+  });
+
+  test('Resolve local paths: workspace selection', () => {
+    const root = Uri.parse(path.resolve(__dirname, '../../test/fortran'));
+    const absPath = pathRelToAbs('./sample.f90', root);
+    assert.strictEqual(absPath, path.resolve(__dirname, '../../test/fortran/sample.f90'));
+  });
 });