Initial Course

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");
+}