From c6f93dc19eeda2d90a36e5409fba7c9abd8e5185 Mon Sep 17 00:00:00 2001
From: MokeevNV <MokeevNV@mpei.ru>
Date: Thu, 1 May 2025 18:57:43 +0300
Subject: [PATCH] =?UTF-8?q?code=204.=D0=BC=D0=BE=D0=B4=D1=83=D0=BB=D1=8C?=
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---
 unittest.cpp | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 unittest.cpp

diff --git a/unittest.cpp b/unittest.cpp
new file mode 100644
index 0000000..151bf0f
--- /dev/null
+++ b/unittest.cpp
@@ -0,0 +1,37 @@
+#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("empty vector"){
+    double min = 0;
+    double max = 0;
+    CHECK(!find_minmax({}, min, max));
+}
+TEST_CASE("vector of one element"){
+    double min = 0;
+    double max = 0;
+    find_minmax({3}, min, max);
+    CHECK(min == max);
+}
+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 of the same elements"){
+    double min = 0;
+    double max = 0;
+    find_minmax({3,3,3}, min, max);
+    CHECK(min == 3);
+    CHECK(max == 3);
+}