code:тесты

histogram_internal.h

@@ -0,0 +1,8 @@
+#ifndef HISTOGRAM_INTERNAL_H_INCLUDED
+#define HISTOGRAM_INTERNAL_H_INCLUDED
+#include <vector>
+
+void find_minmax(const std::vector <double> &numbers, double &min, double &max);
+
+
+#endif // HISTOGRAM_INTERNAL_H_INCLUDED

unittest.cpp

@@ -0,0 +1,33 @@
+#define DOCTEST_CONFIG_NO_MULTITHREADING
+#define DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN
+#include "doctest.h"
+#include "histogram_internal.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("distinct 1 numbers") {
+    double min = 0;
+    double max = 0;
+    find_minmax({1,}, min, max);
+    CHECK(min == 1);
+    CHECK(max == 1);
+}
+TEST_CASE("distinct simple numbers") {
+    double min = 0;
+    double max = 0;
+    find_minmax({1,1}, min, max);
+    CHECK(min == 1);
+    CHECK(max == 1);
+}