small number of extra tests

Author: Torsten-Mumme

src/main/java/net/itarray/automotion/validation/ChunkUIElementValidator.java

@@ -143,20 +143,36 @@ public interface ChunkUIElementValidator {
     // alignment
 
     @Valid({
+            @Scenario(chunk = "empty"),
             @Scenario(chunk = "one"),
     })
+    @NotValid({
+            @Scenario(chunk = "empty", oneOrMore = true),
+    })
     ChunkUIElementValidator areLeftAligned();
     @Valid({
+            @Scenario(chunk = "empty"),
             @Scenario(chunk = "one"),
     })
+    @NotValid({
+            @Scenario(chunk = "empty", oneOrMore = true),
+    })
     ChunkUIElementValidator areRightAligned();
     @Valid({
+            @Scenario(chunk = "empty"),
             @Scenario(chunk = "one"),
     })
+    @NotValid({
+            @Scenario(chunk = "empty", oneOrMore = true),
+    })
     ChunkUIElementValidator areTopAligned();
     @Valid({
+            @Scenario(chunk = "empty"),
             @Scenario(chunk = "one"),
     })
+    @NotValid({
+            @Scenario(chunk = "empty", oneOrMore = true),
+    })
     ChunkUIElementValidator areBottomAligned();
 
     //