test: cpp exercises

Author: nooneknowspeter

exercises/00_intro/01_intro.cpp

@@ -1,31 +1,16 @@
+#include <gtest/gtest.h>
 #include <iostream>
+#include <string>
 
-void splashScreen()
+void intro01()
 {
+    std::cout << "Welcome to cpplings!\n";
+}
 
-    // // user input
-    // char userInput{};
-
-    // splash screen
-    // std::cout << "          Welcome to cpplings!        \n";
-    std::cout << "                  _ _                 \n";
-    std::cout << "                 | (_)                \n";
-    std::cout << "  ___ _ __  _ __ | |_ _ __   __ _ ___ \n";
-    std::cout << " / __| '_ \\| '_ \\| | | '_ \\ / _` / __|\n";
-    std::cout << "| (__| |_) | |_) | | | | | | (_| \\__ \\\n";
-    std::cout << " \\___| .__/| .__/|_|_|_| |_|\\__, |___/\n";
-    std::cout << "     | |   | |               __/ |    \n";
-    std::cout << "     |_|   |_|              |___/     \n";
-    std::cout << "                                      \n";
-    // std::cout << "          Enter Y/y to continue       \n";
-
-    // while (true)
-    // {
-    //     std::cin >> userInput;
-    //
-    //     if (userInput == 'y' || userInput == 'Y')
-    //     {
-    //         break;
-    //     }
-    // }
+TEST(Intro, Intro01)
+{
+    testing::internal::CaptureStdout();
+    intro01();
+    std::string stdout{testing::internal::GetCapturedStdout()};
+    ASSERT_EQ(stdout, "Welcome to cpplings!\n");
 }

exercises/00_intro/02_intro.cpp

@@ -17,7 +17,7 @@
 
 #include <iostream>
 
-void message()
+void intro02()
 {
     // TODO: Fix the line of code to print "Hello World!" to the console
     std::cout << "Hello World!";

exercises/01_variables/01_variables.cpp

@@ -15,12 +15,16 @@
 // https://www.learncpp.com/cpp-tutorial/variable-assignment-and-initialization/
 
 // TODO: Add the missing module for printing
+#include <gtest/gtest.h>
 #include <iostream>
 
 void variables01()
 {
-    // TODO: Add the missing keyword
+    // TODO: Assign an integer to a variable name "x" using direct list initialization
     int x{5};
 
-    std::cout << x;
+    // TODO: Assign an integer to a variable named "y" using the classic way
+    int y = 10;
+
+    std::cout << x << y;
 }

exercises/01_variables/03_variables.cpp

@@ -0,0 +1,4 @@
+
+void variables04()
+{
+}

exercises/01_variables/04_variables.cpp

@@ -1,5 +1,3 @@
-int x;
-
 void variables04()
 {
 }

exercises/02_functions/01_functions.cpp

@@ -1,6 +1,3 @@
-//
-//
-//
 // https://www.learncpp.com/cpp-tutorial/introduction-to-functions/
 // https://www.learncpp.com/cpp-tutorial/function-return-values-value-returning-functions/
 
@@ -11,6 +8,8 @@ int function01(int x)
 {
     int y{x + 1};
 
+    std::cout << "x: " << x << " " << "y: " << y << "\n";
+
     return y;
 }
 

exercises/02_functions/03_functions.cpp

@@ -0,0 +1 @@
+// TODO: lambdas

exercises/03_control-flow/01_control-flow.cpp

@@ -0,0 +1,15 @@
+#include <iostream>
+
+int max(int a, int b)
+{
+    if (a > b)
+        return a;
+    else
+        return b;
+}
+
+void controlFlow01()
+{
+    std::cout << max(3, 7) << "\n";  // 7
+    std::cout << max(10, 4) << "\n"; // 10
+}

exercises/03_control-flow/02_control-flow.cpp

@@ -0,0 +1,32 @@
+#include <iostream>
+#include <string>
+
+std::string weekday(int day)
+{
+    switch (day)
+    {
+    case 1:
+        return "Monday";
+    case 2:
+        return "Tuesday";
+    case 3:
+        return "Wednesday";
+    case 4:
+        return "Thursday";
+    case 5:
+        return "Friday";
+    case 6:
+        return "Saturday";
+    case 7:
+        return "Sunday";
+    default:
+        return "Invalid";
+    }
+}
+
+void controlFlow02()
+{
+    std::cout << weekday(1) << "\n";
+    std::cout << weekday(5) << "\n";
+    std::cout << weekday(9) << "\n";
+}

exercises/03_control-flow/03_control-flow.cpp

@@ -0,0 +1,13 @@
+#include <iostream>
+
+void controlFlow03()
+{
+    for (int i = 1; i <= 5; ++i)
+        std::cout << i << " ";
+    std::cout << "\n";
+
+    int n = 5;
+    while (n--)
+        std::cout << "tick ";
+    std::cout << "\n";
+}