From 7c690fd5adbec0a06f0b8c03c8f8a715b3dbd3b9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Edu=20G=C3=B3mez=20Escandell?=
 <edu.gomez.escandell@canonical.com>
Date: Tue, 12 Dec 2023 11:56:13 +0100
Subject: [PATCH] Implement tests

---
 2023/test/test.cpp              |  2 +
 2023/xmaslib/iota/iota_test.hpp | 66 +++++++++++++++++++++++++++++++++
 2 files changed, 68 insertions(+)
 create mode 100644 2023/xmaslib/iota/iota_test.hpp

diff --git a/2023/test/test.cpp b/2023/test/test.cpp
index 4b32cf3..f23f974 100644
--- a/2023/test/test.cpp
+++ b/2023/test/test.cpp
@@ -6,3 +6,5 @@
 #include "solvelib/03/day03_test.hpp"
 #include "solvelib/04/day04_test.hpp"
 #include "solvelib/05/day05_test.hpp"
+
+#include "xmaslib/iota/iota_test.hpp"
diff --git a/2023/xmaslib/iota/iota_test.hpp b/2023/xmaslib/iota/iota_test.hpp
new file mode 100644
index 0000000..1f9c40a
--- /dev/null
+++ b/2023/xmaslib/iota/iota_test.hpp
@@ -0,0 +1,66 @@
+#include "iota.hpp"
+
+#include <doctest/doctest.h>
+
+#include <algorithm>
+#include <functional>
+#include <iterator>
+#include <numeric>
+#include <ranges>
+#include <vector>
+#include <cstdint>
+
+TEST_CASE("iota iterator") {
+
+  SUBCASE("Access") {
+    xmas::views::iota<std::int8_t> iota(3, 10);
+    REQUIRE_EQ(iota.size(), 7);
+
+    CHECK_EQ(iota.at(0), 3);
+    CHECK_EQ(iota.at(1), 4);
+    CHECK_EQ(iota.at(2), 5);
+    CHECK_EQ(iota.at(3), 6);
+    CHECK_EQ(iota.at(4), 7);
+    CHECK_EQ(iota.at(5), 8);
+    CHECK_EQ(iota.at(6), 9);
+
+    REQUIRE_THROWS(iota.at(7));
+
+    CHECK_EQ(iota[0], 3);
+    CHECK_EQ(iota[1], 4);
+    CHECK_EQ(iota[2], 5);
+    CHECK_EQ(iota[3], 6);
+    CHECK_EQ(iota[4], 7);
+    CHECK_EQ(iota[5], 8);
+    CHECK_EQ(iota[6], 9);
+  }
+
+  SUBCASE("Copy") {
+    xmas::views::iota<std::size_t> iota(11, 17);
+    std::vector<std::size_t> out;
+
+    std::copy(iota.cbegin(), iota.cend(), std::back_inserter(out));
+
+    REQUIRE_EQ(iota.size(), 6);
+    REQUIRE_EQ(out.size(), 6);
+
+    CHECK_EQ(out[0], 11);
+    CHECK_EQ(out[1], 12);
+    CHECK_EQ(out[2], 13);
+    CHECK_EQ(out[3], 14);
+    CHECK_EQ(out[4], 15);
+    CHECK_EQ(out[5], 16);
+  }
+
+  SUBCASE("Reduce") {
+    xmas::views::iota<int> iota(0, 10);
+    REQUIRE_EQ(iota.size(), 10u);
+
+    auto got = std::reduce(iota.begin(), iota.end(), 0, std::plus<int>{});
+    REQUIRE_EQ(got, 45);
+  }
+
+  SUBCASE("Views") {
+    xmas::views::iota<int>() | std::ranges::views::take(5);
+  }
+}
\ No newline at end of file