Writing a test for the evaluator.

Author: travist

src/utils/__tests__/Evaluator.test.ts

@@ -228,4 +228,25 @@ describe('Evaluator', function () {
       '<span>Sun, 02 May 2021 21:00:00 GMT</span>',
     );
   });
+
+  it('Should treat undefined variable as true in custom conditional evaluation', function () {
+    // Simulate the checkCustomConditional logic
+    const context = { data: {}, form: {}, paths: {}, local: {} };
+    // Script does not set 'show', so result should be true
+    assert.equal(Evaluator.evaluate('if (false) { show = false; }', context, 'show'), undefined);
+    // The checkCustomConditional logic would treat undefined as true
+    // So, simulate that logic here
+    const value = Evaluator.evaluate('if (false) { show = false; }', context, 'show');
+    assert.equal(value === undefined ? true : value, true);
+
+    // Script sets show = false
+    assert.equal(Evaluator.evaluate('show = false;', context, 'show'), false);
+    const value2 = Evaluator.evaluate('show = false;', context, 'show');
+    assert.equal(value2 === undefined ? true : value2, false);
+
+    // Script sets show = true
+    assert.equal(Evaluator.evaluate('show = true;', context, 'show'), true);
+    const value3 = Evaluator.evaluate('show = true;', context, 'show');
+    assert.equal(value3 === undefined ? true : value3, true);
+  });
 });