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Finish the code about the CircleTest.cpp. #include #include "pch.h" #include # define M_PI 3.141592653589793238462643383279502884L /* pi */ class Circle { private:    double radius; public:    void set_radius(double);    double area();    double perimeter(); }; void Circle::set_radius(double r) {    radius = r; }

Finish the code about the CircleTest.cpp. #include #include "pch.h" #include # define M_PI 3.141592653589793238462643383279502884L /* pi */ class Circle { private:    double radius; public:    void set_radius(double);    double area();    double perimeter(); }; void Circle::set_radius(double r) {    radius = r; }

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Finish the code about the CircleTest.cpp.

#include <gtest/gtest.h>
#include "pch.h"
#include <math.h>
# define M_PI 3.141592653589793238462643383279502884L /* pi */


class Circle {
private:
   double radius;
public:
   void set_radius(double);
   double area();
   double perimeter();
};

void Circle::set_radius(double r) {
   radius = r;
}
double Circle::area() {
   return M_PI * radius * radius;
}
double Circle::perimeter() {
   return 2 * M_PI * radius;
}

TEST(Area, AreaIsCorrect)
{
   Circle circ;
   circ.set_radius(3);
  
   EXPECT_DOUBLE_EQ(circ.area(), 3 * 3 * M_PI);
  

}

int main(int ac, char* av[])
{
   testing::InitGoogleTest(&ac, av);
   return RUN_ALL_TESTS();
}

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