Problem with getting text from document when testing vscode extension

As my comment suggested, you do need async/await to get the test to run as you expect. Here is the updated code:

suite( 'Extension Test Suite', () => { test( 'Smoke test', async () => { let editor = vscode.window.activeTextEditor; if ( editor !== undefined ) { let testText = `failed`; let expectedResult = `passed`; await editor.edit( editBuilder => { editBuilder.replace( editor.selection.active, testText ); } ).then( ( result ) => { assert.strictEqual( result, true ); // stops here first } ); // stop here second assert.strictEqual( editor.document.getText(), expectedResult, "Text should match" ); } else throw new Error( "Editor is undefined" ); } ); } );

Now the assert.strictEqual( editor.document.getText(), expectedResult, "Text should match" ); line is hit after the edit replace is completed. I do see failed in the file at that point.

The thing I don't understand is that you insert testText ("failed") into the file and then assert that "failed" will equal "passed" ??