Initial Course

modules/03_functions/test/default_parameters_test.cpp

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+#include "default_parameters.hpp"
+#include <gtest/gtest.h>
+
+TEST(DefaultParameters, Repeat) {
+    EXPECT_EQ(functions::repeat('*'), "*");
+    EXPECT_EQ(functions::repeat('-', 3), "---");
+}
+
+TEST(DefaultParameters, Power) {
+    EXPECT_EQ(functions::power(5), 25);
+    EXPECT_EQ(functions::power(2, 10), 1024);
+}
+
+TEST(DefaultParameters, Clamp) {
+    EXPECT_EQ(functions::clamp(150), 100);
+    EXPECT_EQ(functions::clamp(-5), 0);
+    EXPECT_EQ(functions::clamp(42, 10, 50), 42);
+}

modules/03_functions/test/function_basics_test.cpp

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+#include "function_basics.hpp"
+#include <gtest/gtest.h>
+
+TEST(FunctionBasics, Square) { EXPECT_EQ(functions::square(7), 49); }
+
+TEST(FunctionBasics, SwapIntegers) {
+    int a = 1, b = 2;
+    functions::swap_integers(a, b);
+    EXPECT_EQ(a, 2);
+    EXPECT_EQ(b, 1);
+}
+
+TEST(FunctionBasics, Concatenate) {
+    EXPECT_EQ(functions::concatenate({"C", "++"}), "C++");
+}
+
+TEST(FunctionBasics, AppendSuffix) {
+    std::string text = "modern";
+    functions::append_suffix(text, "_cpp");
+    EXPECT_EQ(text, "modern_cpp");
+}

modules/03_functions/test/overloading_test.cpp

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+#include "overloading.hpp"
+#include <gtest/gtest.h>
+
+TEST(Overloading, MaxInt) { EXPECT_EQ(functions::max_value(3, 9), 9); }
+TEST(Overloading, MaxDouble) { EXPECT_DOUBLE_EQ(functions::max_value(3.1, 2.9), 3.1); }
+TEST(Overloading, MaxString) { EXPECT_EQ(functions::max_value("abc", "abd"), "abd"); }
+TEST(Overloading, Area) {
+    EXPECT_EQ(functions::area(4), 16);
+    EXPECT_EQ(functions::area(3, 5), 15);
+}

modules/03_functions/test/recursion_test.cpp

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+#include "recursion.hpp"
+#include <gtest/gtest.h>
+
+TEST(Recursion, Fibonacci) {
+    EXPECT_EQ(functions::fibonacci(0), 0);
+    EXPECT_EQ(functions::fibonacci(1), 1);
+    EXPECT_EQ(functions::fibonacci(10), 55);
+}
+
+TEST(Recursion, SumDigits) {
+    EXPECT_EQ(functions::sum_digits(12345), 15);
+}
+
+TEST(Recursion, IsPalindrome) {
+    EXPECT_TRUE(functions::is_palindrome(121));
+    EXPECT_FALSE(functions::is_palindrome(123));
+}