commit 03e1def2d90850d97a68ba76d8cf82f604b5baab
author Gary Gregory <gardgregory@gmail.com> Mon Aug 05 11:26:49 2019 -0400
committer Gary Gregory <gardgregory@gmail.com> Mon Aug 05 11:26:49 2019 -0400
tree 558152f15593df55f96bf29d4d32fe4cb44f3926
parent 9bab62a2e6a2bffe32d2d664267c46daf5f73b68

Tests an interpolation that consists of a single undefined variable only
with and without a default value.

src/test/java/org/apache/commons/configuration2/interpol/TestConfigurationInterpolator.java

diff --git a/src/test/java/org/apache/commons/configuration2/interpol/TestConfigurationInterpolator.java b/src/test/java/org/apache/commons/configuration2/interpol/TestConfigurationInterpolator.java
index 24fca68..be53c03 100644
--- a/src/test/java/org/apache/commons/configuration2/interpol/TestConfigurationInterpolator.java
+++ b/src/test/java/org/apache/commons/configuration2/interpol/TestConfigurationInterpolator.java
@@ -364,6 +364,8 @@
                 interpolator.interpolate("${I_am_not_defined}"));
         assertEquals("Wrong result", "42",
                 interpolator.interpolate("${I_am_not_defined:-42}"));
+        assertEquals("Wrong result", "",
+                interpolator.interpolate("${I_am_not_defined:-}"));
     }
 
     /**