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unittest.cpp

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+#include "histogram_internal.h"
+#include <vector>
+#define DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN
+#include "doctest.h"
+
+
+TEST_CASE("distinct positive numbers") {
+    double min = 0;
+    double max = 0;
+    find_minmax({1, 2}, min, max);
+    CHECK(min == 1);
+    CHECK(max == 2);
+}
+
+TEST_CASE("distinct negative numbers")
+{
+    double min = 0;
+    double max = 0;
+    find_minmax({-1, -2}, min, max);
+    CHECK(min == -2);
+    CHECK(max == -1);
+}
+TEST_CASE("vector 1 element")
+{
+    double min = 0;
+    double max = 0;
+    find_minmax({1}, min, max);
+    CHECK(min == 1);
+    CHECK(max == 1);
+}
+TEST_CASE("distinct equals numbers")
+{
+    double min = 0;
+    double max = 0;
+    find_minmax({1, 1}, min, max);
+    CHECK(min == 1);
+    CHECK(max == 1);
+}
+TEST_CASE("distinct equals numbers") {
+    double min = 0;
+    double max = 0;
+    find_minmax({1, 1}, min, max);
+    CHECK(min == 1);
+    CHECK(max == 1);
+}
+
+TEST_CASE("empty vector") {
+    double min = -1;
+    double max = -1;
+    find_minmax({}, min, max);
+    // Ïðîâåðÿåì, ÷òî min è max íå èçìåíèëèñü (èëè èçìåíèëèñü â îæèäàåìûé ñïîñîá)
+    CHECK(min == -1);
+    CHECK(max == -1);
+}