Create checkbox_test.dart

test/widgets/checkbox_test.dart

@@ -0,0 +1,30 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:apidash/widgets/checkbox.dart';
+
+void main() {
+  testWidgets('Testing for Checkbox', (tester) async {
+    dynamic changedValue;
+    await tester.pumpWidget(
+      MaterialApp(
+        title: 'Checkbox Widget',
+        home: Scaffold(
+          body: CheckBox(
+            keyId: "1",
+            value: false,
+            onChanged: (value) {
+              changedValue = value;
+            },
+          ),
+        ),
+      ),
+    );
+
+    expect(find.byKey(const Key("1")), findsOneWidget);
+    var box = find.byKey(const Key("1"));
+    await tester.tap(box);
+    await tester.pump();
+    await tester.pumpAndSettle();
+    expect(changedValue, true);
+  });
+}