JAL-2346 unit test for annotation drop-down list builder

diff --git a/src/jalview/datamodel/AlignmentAnnotation.java b/src/jalview/datamodel/AlignmentAnnotation.java
index 05688cb..c6266b2 100755 (executable)
--- a/src/jalview/datamodel/AlignmentAnnotation.java
+++ b/src/jalview/datamodel/AlignmentAnnotation.java
@@ -20,10 +20,6 @@
  */
 package jalview.datamodel;
 
-import jalview.analysis.Rna;
-import jalview.analysis.SecStrConsensus.SimpleBP;
-import jalview.analysis.WUSSParseException;
-
 import java.util.Collection;
 import java.util.Collections;
 import java.util.HashMap;
@@ -32,6 +28,10 @@ import java.util.List;
 import java.util.Map;
 import java.util.Map.Entry;
 
+import jalview.analysis.Rna;
+import jalview.analysis.SecStrConsensus.SimpleBP;
+import jalview.analysis.WUSSParseException;
+
 /**
  * DOCUMENT ME!
  * 
@@ -863,6 +863,10 @@ public class AlignmentAnnotation
   @Override
   public String toString()
   {
+    if (annotations == null)
+    {
+      return "";
+    }
     StringBuilder buffer = new StringBuilder(256);
 
     for (int i = 0; i < annotations.length; i++)

diff --git a/test/jalview/schemes/AnnotationColourGradientTest.java b/test/jalview/schemes/AnnotationColourGradientTest.java
new file mode 100644 (file)
index 0000000..c9ceebb
--- /dev/null
+++ b/test/jalview/schemes/AnnotationColourGradientTest.java
@@ -0,0 +1,12 @@
+package jalview.schemes;
+
+import org.testng.annotations.Test;
+
+public class AnnotationColourGradientTest
+{
+  @Test(groups = "Functional")
+  public void testShadeCalculation()
+  {
+
+  }
+}