diff --git a/extensions/vscode-api-tests/src/singlefolder-tests/window.test.ts b/extensions/vscode-api-tests/src/singlefolder-tests/window.test.ts
index b2d31498d26c8ac6e554be220f67cd4ddb5032a5..61823002e3cc403f3bae144f0c170f9944193bb3 100644
--- a/extensions/vscode-api-tests/src/singlefolder-tests/window.test.ts
+++ b/extensions/vscode-api-tests/src/singlefolder-tests/window.test.ts
@@ -587,9 +587,11 @@ suite('window namespace tests', () => {
 		test('onDidChangeActiveTerminal should fire when new terminals are created', (done) => {
 			const reg1 = window.onDidChangeActiveTerminal((active: Terminal | undefined) => {
 				assert.equal(active, terminal);
+				assert.equal(active, window.activeTerminal);
 				reg1.dispose();
 				const reg2 = window.onDidChangeActiveTerminal((active: Terminal | undefined) => {
 					assert.equal(active, undefined);
+					assert.equal(active, window.activeTerminal);
 					reg2.dispose();
 					done();
 				});