refactor: renamed tests

test/game/components/ball_test.dart

@@ -35,6 +35,26 @@ void main() {
           expect(ball.body.bodyType, equals(BodyType.dynamic));
         },
       );
+
+      group('can be moved', () {
+        flameTester.test('by its weight', (game) async {
+          final ball = Ball();
+          await game.ensureAdd(ball);
+
+          game.update(1);
+          expect(ball.body.position, isNot(equals(ball.initialPosition)));
+        });
+
+        flameTester.test('by applying velocity', (game) async {
+          final ball = Ball();
+          await game.ensureAdd(ball);
+
+          ball.body.gravityScale = 0;
+          ball.body.linearVelocity.setValues(10, 10);
+          game.update(1);
+          expect(ball.body.position, isNot(equals(ball.initialPosition)));
+        });
+      });
     });
 
     group('fixture', () {
@@ -152,27 +172,22 @@ void main() {
     });
 
     group('stop', () {
-      flameTester.test('can be moved', (game) async {
-        final ball = Ball();
-        await game.ensureAdd(ball);
-
-        game.update(1);
-        expect(ball.body.position, isNot(equals(ball.initialPosition)));
+      group("can't be moved", () {
+        flameTester.test('by its weight', (game) async {
+          final ball = Ball();
+          await game.ensureAdd(ball);
+          ball.stop();
 
-        ball.body.gravityScale = 0;
-        ball.body.linearVelocity.setValues(10, 10);
-        game.update(1);
-        expect(ball.body.position, isNot(equals(ball.initialPosition)));
+          game.update(1);
+          expect(ball.body.position, equals(ball.initialPosition));
+        });
       });
 
-      flameTester.test("can't be moved", (game) async {
+      flameTester.test('by applying velocity', (game) async {
         final ball = Ball();
         await game.ensureAdd(ball);
         ball.stop();
 
-        game.update(1);
-        expect(ball.body.position, equals(ball.initialPosition));
-
         ball.body.linearVelocity.setValues(10, 10);
         game.update(1);
         expect(ball.body.position, equals(ball.initialPosition));
@@ -180,19 +195,34 @@ void main() {
     });
 
     group('resume', () {
-      flameTester.test('can move when previosusly stopped', (game) async {
-        final ball = Ball();
-        await game.ensureAdd(ball);
-        ball.stop();
-        ball.resume();
-
-        game.update(1);
-        expect(ball.body.position, isNot(equals(ball.initialPosition)));
+      group('can move', () {
+        flameTester.test(
+          'by its weight when previously stopped',
+          (game) async {
+            final ball = Ball();
+            await game.ensureAdd(ball);
+            ball.stop();
+            ball.resume();
+
+            game.update(1);
+            expect(ball.body.position, isNot(equals(ball.initialPosition)));
+          },
+        );
 
-        ball.body.gravityScale = 0;
-        ball.body.linearVelocity.setValues(10, 10);
-        game.update(1);
-        expect(ball.body.position, isNot(equals(ball.initialPosition)));
+        flameTester.test(
+          'by applying velocity when previously stopped',
+          (game) async {
+            final ball = Ball();
+            await game.ensureAdd(ball);
+            ball.stop();
+            ball.resume();
+
+            ball.body.gravityScale = 0;
+            ball.body.linearVelocity.setValues(10, 10);
+            game.update(1);
+            expect(ball.body.position, isNot(equals(ball.initialPosition)));
+          },
+        );
       });
     });
   });