Initial Course

modules/07_stl_containers/test/associative_containers_test.cpp

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+#include "associative_containers.hpp"
+#include <gtest/gtest.h>
+
+TEST(AssociativeContainers, WordFrequencies) {
+    const auto freq = stl_containers::word_frequencies({"a", "b", "a"});
+    EXPECT_EQ(freq.at("a"), 2);
+    EXPECT_EQ(freq.at("b"), 1);
+}
+
+TEST(AssociativeContainers, UniqueSorted) {
+    EXPECT_EQ(stl_containers::unique_sorted({3, 1, 2, 2}), (std::set<int>{1, 2, 3}));
+}
+
+TEST(AssociativeContainers, InvertMap) {
+    const std::map<int, std::string> input{{1, "one"}, {2, "two"}};
+    const auto inverted = stl_containers::invert_map(input);
+    EXPECT_EQ(inverted.at("one"), 1);
+}