Flutter Unit Testing - Grouping

area_test.dart

void main() {
  
  group("Area of the circle",(){
    test("Area of the circle with radius 1 should be 3.141592", () {
      // Arrange
      Area area = Area();
      // Act
      double result = area.circle(1);
      // Assert
      expect(result, 3.141592);
    });

    test("Area of the circle with radius 10 should be 3.141592", () {
      // Arrange
      Area area = Area();
      // Act
      double result = area.circle(10);
      // Assert
      expect(result, 314.1592);
    });
  });

  test("Area.pi should be 3.141592", () {
    // Arrange

    // Act
    
    // Assert
    expect(Area.pi, 3.141592);
  });
}