Responsive Wrapper Test Creation #2

*Create ResponsiveBreakpoint test.

Author: rayliverified

lib/responsive_wrapper.dart

@@ -533,7 +533,8 @@ class ResponsiveBreakpoint {
       {@required this.breakpoint,
       this.autoScale = false,
       this.scaleFactor = 1,
-      this.name});
+      this.name})
+      : assert((breakpoint != null) ? breakpoint >= 0 : true);
 
   @override
   String toString() =>

test/responsive_wrapper_test.dart

@@ -9,7 +9,7 @@ import 'package:responsive_framework/responsive_framework.dart';
 import 'test_utils.dart';
 
 void main() {
-  group('Wrapper', () {
+  group('ResponsiveWrapper', () {
     /// Verify empty widget does nothing.
     testWidgets('Empty', (WidgetTester tester) async {
       setScreenSize(tester, Size(450, 1200));
@@ -38,4 +38,22 @@ void main() {
       expect(mediaQueryData.data.size, Size(450, 1200));
     });
   });
+
+  test('ResponsiveBreakpoint', () {
+    // Test empty breakpoint.
+    ResponsiveBreakpoint responsiveBreakpoint =
+        ResponsiveBreakpoint(breakpoint: null);
+    // Test print empty.
+    print(responsiveBreakpoint);
+    expect(responsiveBreakpoint.breakpoint, null);
+    expect(responsiveBreakpoint.autoScale, false);
+    expect(responsiveBreakpoint.scaleFactor, 1);
+    expect(responsiveBreakpoint.name, null);
+
+    // Test setting parameters types.
+    responsiveBreakpoint = ResponsiveBreakpoint(
+        breakpoint: 600, name: MOBILE, autoScale: true, scaleFactor: 1.2);
+    // Test print parameters.
+    print(responsiveBreakpoint);
+  });
 }