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-rw-r--r--test/test_rg_state.rb6
1 files changed, 6 insertions, 0 deletions
diff --git a/test/test_rg_state.rb b/test/test_rg_state.rb
index 3a84216..59061a2 100644
--- a/test/test_rg_state.rb
+++ b/test/test_rg_state.rb
@@ -20,6 +20,12 @@ class TestRGState < Testcase
     assert_equal({"preamp" => 0.666}, rg.to_hsh)
   end
 
+  def test_rg_vol_norm
+    rg = DTAS::RGState.new
+    assert_nil rg.rg_vol_norm(0.999999999)
+    assert_match(%r{\Again 0.827}, rg.rg_vol_norm(0.9))
+  end
+
   def test_mode_set
     rg = DTAS::RGState.new
     orig = rg.mode