From da20f3bc38d2cd7190dcf987265b9bf56c4153ab Mon Sep 17 00:00:00 2001
From: Thomas Hisch <t.hisch@gmail.com>
Date: Mon, 9 Sep 2019 20:25:47 +0200
Subject: [PATCH] Add bar to unit lookup table

---
 unyt/_unit_lookup_table.py | 1 +
 unyt/tests/test_units.py   | 5 +++++
 2 files changed, 6 insertions(+)

diff --git a/unyt/_unit_lookup_table.py b/unyt/_unit_lookup_table.py
index 11783337..f11ca920 100644
--- a/unyt/_unit_lookup_table.py
+++ b/unyt/_unit_lookup_table.py
@@ -111,6 +111,7 @@
         ("C", (1.0, dimensions.charge_mks, 0.0, r"\rm{C}", True)),
         ("T", (1.0, dimensions.magnetic_field_mks, 0.0, r"\rm{T}", True)),
         ("Pa", (1.0, dimensions.pressure, 0.0, r"\rm{Pa}", True)),
+        ("bar", (1.0e5, dimensions.pressure, 0.0, r"\rm{bar}", True)),
         ("V", (1.0, dimensions.electric_potential, 0.0, r"\rm{V}", True)),
         ("F", (1.0, dimensions.capacitance, 0.0, r"\rm{F}", True)),
         ("Ω", (1.0, dimensions.resistance, 0.0, r"\Omega", True)),
diff --git a/unyt/tests/test_units.py b/unyt/tests/test_units.py
index f74735bd..a44af41f 100644
--- a/unyt/tests/test_units.py
+++ b/unyt/tests/test_units.py
@@ -771,3 +771,8 @@ def test_show_all_units_doc_table_ops():
             (1 * u).in_cgs()
         except UnitsNotReducible:
             pass
+
+def test_hPa_mbar():
+    assert Unit('hPa').dimensions == Unit('bar').dimensions
+    assert (5 * Unit('hPa') == 5 * Unit('mbar')).all()
+    assert (5 * Unit('hPa') != 1 * Unit('bar')).all()