Refactord labs to have a common functions in their own class (37299e96) · Commits · Melinda Tran / Current

tests/.gitkeep

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Empty file deleted.

tests/LabOne.cpp

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		//
		// Created by Ari Trachtenberg on 9/10/24.
		//

		#include "LabOne.h"

tests/LabZero.cpp

+94 −148

Original line number	Diff line number	Diff line

		#include <iostream>
		#include <string>
		#include <sstream>

		#include "../problems/LabZero_ChapterTwo.h"
		#include "../problems/LabZero_ChapterThree.h"
		#include "Support/Common.h"

		using namespace std;

		//
		// Created by Ari Trachtenberg on 9/3/24, with support from ChatGPT
		//

		// global variables
		streambuf* orig_cin_buf; // records the standard input buffer
		streambuf* orig_cout_buf; // records the standard output buffer
		istringstream inStream; // input stream to produce from a given string
		ostringstream outStream; // captured output stream


		// HELPERS

		// Function to trim leading and trailing whitespace - from ChatGPT
		string trim(const string& str) {
		size_t first = str.find_first_not_of(" \t\n\r\f\v");
		if (first == std::string::npos)
		return ""; // The string is all whitespace or empty

		size_t last = str.find_last_not_of(" \t\n\r\f\v");
		return str.substr(first, (last - first + 1));
		}

		/**
		* Redirects input and ouput to strings
		* @param iStr The input string
		*/
		void redirIO(const string iStr) {
		// save the old buffers
		orig_cin_buf = cin.rdbuf();
		orig_cout_buf = cout.rdbuf();

		// set up streams
		inStream.str(iStr);
		outStream.str(""); outStream.clear();
		cin.rdbuf(inStream.rdbuf());
		cout.rdbuf(outStream.rdbuf());
		}

		/**
		* Restore input and output to STDIN/STDOUT, respectively.
		* @return The output string that was captured since the redirect, trimmed of
		* initial and final whitespace
		*/
		string restoreIO() {
		cin.rdbuf(orig_cin_buf);
		cout.rdbuf(orig_cout_buf);

		return trim(outStream.str());
		}


		// TESTS
		bool test_labZero_pZero() {
		redirIO("1 2 90"); // redirect input
		Common::redirIO("1 2 90"); // redirect input
		labZero_pZero();
		float out = stof(restoreIO());
		float out = stof(Common::restoreIO());
		if (out * out > 1.99 && out * out < 2.01) {
		return true;
		}
		else {
		} else {
		return false;
		}
		}
		@@ -77,17 +25,17 @@ bool test_labZero_pOne() {
		string out;

		// example 1
		redirIO("0900\n1730\n");
		Common::redirIO("0900\n1730\n");
		labZero_pOne();
		out = restoreIO();
		out = Common::restoreIO();
		if (out != "8 hours 30 minutes") {
		return false;
		}

		// example 2
		redirIO("1730\n0900\n");
		Common::redirIO("1730\n0900\n");
		labZero_pOne();
		out = restoreIO();
		out = Common::restoreIO();
		if (out != "15 hours 30 minutes") {
		return false;
		}
		@@ -97,9 +45,9 @@ bool test_labZero_pOne() {
		}

		bool test_labZero_pTwo() {
		redirIO("123456");
		Common::redirIO("123456");
		labZero_pTwo();
		int out = stoi(restoreIO());
		int out = stoi(Common::restoreIO());
		if (out != 21)
		return false;

		@@ -107,9 +55,9 @@ bool test_labZero_pTwo() {
		}

		bool test_labZero_pThree() {
		redirIO("1 2 3 4");
		Common::redirIO("1 2 3 4");
		labZero_pThree();
		string out = restoreIO();
		string out = Common::restoreIO();
		if (out != "in order")
		return false;

		@@ -120,16 +68,16 @@ bool test_labZero_pFour() {
		string out;

		// example 1
		redirIO("0 0\n0 1\n1 0\n1 1\n");
		Common::redirIO("0 0\n0 1\n1 0\n1 1\n");
		labZero_pFour();
		out = restoreIO();
		out = Common::restoreIO();
		if (out != "square")
		return false;

		// example 2
		redirIO("0 0\n0 1\n2 0\n1 1\n");
		Common::redirIO("0 0\n0 1\n2 0\n1 1\n");
		labZero_pFour();
		out = restoreIO();
		out = Common::restoreIO();
		if (out != "trapezoid")
		return false;

		@@ -140,16 +88,16 @@ bool test_labZero_pFive() {
		string out;

		// example 1
		redirIO("14\n");
		Common::redirIO("14\n");
		labZero_pFive();
		out = restoreIO();
		out = Common::restoreIO();
		if (out != "XIV")
		return false;

		// example 2
		redirIO("1978\n");
		Common::redirIO("1978\n");
		labZero_pFive();
		out = restoreIO();
		out = Common::restoreIO();
		if (out != "MCMLXXVIII")
		return false;

		@@ -157,7 +105,6 @@ bool test_labZero_pFive() {
		}



		int main() {
		bool t0 = test_labZero_pZero();
		bool t1 = test_labZero_pOne();
		@@ -175,8 +122,7 @@ int main() {

		if (t0 && t1 && t2 && t3 && t4 && t5) { // all tests passed
		exit(0); // passed
		}
		else {
		} else {
		exit(-1); // failed
		}
		}
		No newline at end of file

tests/Support/Common.cpp

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		#include "Common.h"

		// initialize static fields
		streambuf* Common::orig_cin_buf = cin.rdbuf();
		streambuf* Common::orig_cout_buf = cout.rdbuf();
		istringstream Common::inStream("");
		ostringstream Common::outStream("");

tests/Support/Common.h

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		//
		// Created by Ari Trachtenberg on 9/10/24.
		//

		#ifndef PUBLIC_COMMON_H
		#define PUBLIC_COMMON_H

		#include <iostream>
		#include <string>
		#include <sstream>
		using namespace std;

		/**
		* A Singleton class of variables and functions that are common to multiple labs.
		*/

		class Common {
		//
		// Created by Ari Trachtenberg on 9/3/24, with support from ChatGPT
		//

		public:

		// global variables
		static streambuf* orig_cin_buf; // records the standard input buffer
		static streambuf* orig_cout_buf; // records the standard output buffer
		static istringstream inStream; // input stream to produce from a given string
		static ostringstream outStream; // captured output stream


		// HELPERS

		// Function to trim leading and trailing whitespace - from ChatGPT
		static string trim(const string& str) {
		size_t first = str.find_first_not_of(" \t\n\r\f\v");
		if (first == std::string::npos)
		return ""; // The string is all whitespace or empty

		size_t last = str.find_last_not_of(" \t\n\r\f\v");
		return str.substr(first, (last - first + 1));
		}

		/**
		* Redirects input and output to strings
		* @param iStr The input string
		*/
		static void redirIO(const string iStr) {
		// save the old buffers
		orig_cin_buf = cin.rdbuf();
		orig_cout_buf = cout.rdbuf();

		// set up streams
		inStream.str(iStr);
		outStream.str(""); outStream.clear();
		cin.rdbuf(inStream.rdbuf());
		cout.rdbuf(outStream.rdbuf());
		}

		/**
		* Restore input and output to STDIN/STDOUT, respectively.
		* @requires redirIO() was called before this method
		* @return The output string that was captured since the redirect, trimmed of
		* initial and final whitespace
		*/
		static string restoreIO() {
		cin.rdbuf(orig_cin_buf);
		cout.rdbuf(orig_cout_buf);

		return trim(outStream.str());
		}
		};
		#endif //PUBLIC_COMMON_H