From 15833669d8e978a084964b16f45692e213e96bf2 Mon Sep 17 00:00:00 2001
From: rbrugo <brugo.riccardo@gmail.com>
Date: Tue, 7 Apr 2020 04:20:17 +0200
Subject: [PATCH] Fixed text formatting for current density in unit test

---
 src/include/units/physical/dimensions.h         | 4 ++--
 src/include/units/physical/si/current_density.h | 4 ++--
 test/unit_test/runtime/fmt_units_test.cpp       | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/include/units/physical/dimensions.h b/src/include/units/physical/dimensions.h
index 254c44a3..9a6bf108 100644
--- a/src/include/units/physical/dimensions.h
+++ b/src/include/units/physical/dimensions.h
@@ -131,8 +131,8 @@ struct dim_catalytic_activity : derived_dimension<Child, U, exp<T, -1>, exp<M, 1
 template<typename Child, Unit U, DimensionOf<dim_energy> E, DimensionOf<dim_mass> M>
 struct dim_absorbed_dose : derived_dimension<Child, U, exp<E, 1>, exp<M, -1>> {};
 
-template<typename Child, Unit U, DimensionOf<dim_electric_current> I, DimensionOf<dim_area> A>
-struct dim_current_density : derived_dimension<Child, U, exp<I, 1>, exp<A, -1>> {};
+template<typename Child, Unit U, DimensionOf<dim_electric_current> I, DimensionOf<dim_length> L>
+struct dim_current_density : derived_dimension<Child, U, exp<I, 1>, exp<L, -2>> {};
 
 }  // namespace physical
 
diff --git a/src/include/units/physical/si/current_density.h b/src/include/units/physical/si/current_density.h
index 6bde78b0..6d6c6086 100644
--- a/src/include/units/physical/si/current_density.h
+++ b/src/include/units/physical/si/current_density.h
@@ -24,7 +24,7 @@
 
 #include <units/physical/dimensions.h>
 #include <units/physical/si/current.h>
-#include <units/physical/si/area.h>
+#include <units/physical/si/length.h>
 #include <units/physical/si/prefixes.h>
 #include <units/quantity.h>
 
@@ -32,7 +32,7 @@ namespace units::si {
 
 struct ampere_per_metre_sq : unit<ampere_per_metre_sq> {};
 
-struct dim_current_density : physical::dim_current_density<dim_current_density, ampere_per_metre_sq, dim_electric_current, dim_area> {};
+struct dim_current_density : physical::dim_current_density<dim_current_density, ampere_per_metre_sq, dim_electric_current, dim_length> {};
 
 template<Unit U, Scalar Rep = double>
 using current_density = quantity<dim_current_density, U, Rep>;
diff --git a/test/unit_test/runtime/fmt_units_test.cpp b/test/unit_test/runtime/fmt_units_test.cpp
index e512178b..bd7a6c6e 100644
--- a/test/unit_test/runtime/fmt_units_test.cpp
+++ b/test/unit_test/runtime/fmt_units_test.cpp
@@ -236,7 +236,7 @@ TEST_CASE("fmt::format on synthesized unit symbols", "[text][fmt]")
   SECTION("current density")
   {
     CHECK(fmt::format("{}", 1q_A_per_m2) == "1 A/m²");
-    CHECK(fmt::format("{:%q %AQ}", 1q_A_per_m2) == "1 A/m^2");
+    CHECK(fmt::format("{:%Q %Aq}", 1q_A_per_m2) == "1 A/m^2");
   }
 
   SECTION("incoherent units with powers")