From 1830735544a20a8276b6fafe1ab0963a8538c05b Mon Sep 17 00:00:00 2001
From: Mateusz Pusz <mateusz.pusz@gmail.com>
Date: Fri, 8 May 2020 21:18:16 +0200
Subject: [PATCH] Unit tests for alias_unit added

---
 test/unit_test/runtime/fmt_test.cpp     | 42 +++++++++++++++++++++++++
 test/unit_test/static/quantity_test.cpp |  8 +++++
 2 files changed, 50 insertions(+)

diff --git a/test/unit_test/runtime/fmt_test.cpp b/test/unit_test/runtime/fmt_test.cpp
index 515b8dea..4d306f5e 100644
--- a/test/unit_test/runtime/fmt_test.cpp
+++ b/test/unit_test/runtime/fmt_test.cpp
@@ -155,6 +155,48 @@ TEST_CASE("operator<< on a quantity", "[text][ostream][fmt]")
     }
   }
 
+  SECTION("quantity with an alias unit")
+  {
+    const auto q = 2q_l;
+    os << q;
+
+    SECTION("iostream")
+    {
+      CHECK(os.str() == "2 l");
+    }
+
+    SECTION("fmt with default format {} on a quantity")
+    {
+      CHECK(fmt::format("{}", q) == os.str());
+    }
+
+    SECTION("fmt with format {:%Q %q} on a quantity")
+    {
+      CHECK(fmt::format("{:%Q %q}", q) == os.str());
+    }
+  }
+
+  SECTION("quantity with a prefixed alias unit")
+  {
+    const auto q = 2q_ml;
+    os << q;
+
+    SECTION("iostream")
+    {
+      CHECK(os.str() == "2 ml");
+    }
+
+    SECTION("fmt with default format {} on a quantity")
+    {
+      CHECK(fmt::format("{}", q) == os.str());
+    }
+
+    SECTION("fmt with format {:%Q %q} on a quantity")
+    {
+      CHECK(fmt::format("{:%Q %q}", q) == os.str());
+    }
+  }
+
   SECTION("quantity with a deduced unit")
   {
     SECTION("coherent derived unit")
diff --git a/test/unit_test/static/quantity_test.cpp b/test/unit_test/static/quantity_test.cpp
index b74e72ed..d7c5c687 100644
--- a/test/unit_test/static/quantity_test.cpp
+++ b/test/unit_test/static/quantity_test.cpp
@@ -24,6 +24,7 @@
 #include "units/physical/si/area.h"
 #include "units/physical/si/frequency.h"
 #include "units/physical/si/velocity.h"
+#include "units/physical/si/volume.h"
 #include <chrono>
 #include <utility>
 
@@ -202,6 +203,13 @@ static_assert(999q_m < 1q_km);
 static_assert(1000q_m >= 1q_km);
 static_assert(1000q_m <= 1q_km);
 
+// alias units
+
+static_assert(2q_l + 2q_ml == 2002q_ml);
+static_assert(2q_l + 2q_ml == 2002q_cm3);
+static_assert(2q_l + 2q_cm3 == 2002q_ml);
+static_assert(2q_dm3 + 2q_cm3 == 2002q_ml);
+
 // is_quantity
 
 static_assert(Quantity<length<millimetre, int>>);