test coverage

git-svn-id: https://src.springframework.org/svn/spring-framework/trunk@1270 50f2f4bb-b051-0410-bef5-90022cba6387

org.springframework.expression/src/main/java/org/springframework/expression/spel/ast/Selection.java

@@ -132,12 +132,17 @@ public class Selection extends SpelNodeImpl {
 			}
 			return new TypedValue(result,op.getTypeDescriptor());
 		} else {
-			if (operand==null && nullSafe) {
-				return TypedValue.NULL_TYPED_VALUE;
+			if (operand==null) {
+				if (nullSafe) { 
+					return TypedValue.NULL_TYPED_VALUE;
+				} else {
+					throw new SpelEvaluationException(getStartPosition(), SpelMessages.INVALID_TYPE_FOR_SELECTION,
+							"null");
+				}
 			} else {
 				throw new SpelEvaluationException(getStartPosition(), SpelMessages.INVALID_TYPE_FOR_SELECTION,
-						(operand == null ? "null" : operand.getClass().getName()));
-			}
+						operand.getClass().getName());
+			}				
 		}
 	}
 

org.springframework.expression/src/test/java/org/springframework/expression/spel/InProgressTests.java

@@ -65,6 +65,8 @@ public class InProgressTests extends ExpressionTestCase {
 	@Test
 	public void testProjection05() {
 		evaluateAndCheckError("'abc'.![true]", SpelMessages.PROJECTION_NOT_SUPPORTED_ON_TYPE);
+		evaluateAndCheckError("null.![true]", SpelMessages.PROJECTION_NOT_SUPPORTED_ON_TYPE);
+		evaluate("null?.![true]", null, null);
 	}
 	
 	@Test
@@ -95,11 +97,22 @@ public class InProgressTests extends ExpressionTestCase {
 //		evaluate("listOfNumbersUpToTen.?{#this>5}", "5", ArrayList.class);
 	}
 
+
 	@Test
 	public void testSelection04() {
 		evaluateAndCheckError("mapOfNumbersUpToTen.?['hello'].size()",SpelMessages.RESULT_OF_SELECTION_CRITERIA_IS_NOT_BOOLEAN);
 	}
 
+	@Test
+	public void testSelection05() {
+		evaluate("mapOfNumbersUpToTen.?[key>11].size()", "0", Integer.class);
+		evaluate("mapOfNumbersUpToTen.^[key>11]", null, null);
+		evaluate("mapOfNumbersUpToTen.$[key>11]", null, null);
+		evaluate("null?.$[key>11]", null, null);
+		evaluateAndCheckError("null.?[key>11]", SpelMessages.INVALID_TYPE_FOR_SELECTION);
+		evaluateAndCheckError("'abc'.?[key>11]", SpelMessages.INVALID_TYPE_FOR_SELECTION);
+	}
+
 	@Test
 	public void testSelectionFirst01() {
 		evaluate("listOfNumbersUpToTen.^[#isEven(#this) == 'y']", "2", Integer.class);

org.springframework.expression/src/test/java/org/springframework/expression/spel/ParsingTests.java

@@ -155,6 +155,11 @@ public class ParsingTests {
 		parseCheck("3>=3", "(3 >= 3)");
 	}
 
+	@Test
+	public void testElvis() {
+		parseCheck("3?:1", "3 ?: 1");
+	}
+	
 	// public void testRelOperatorsIn01() {
 	// parseCheck("3 in {1,2,3,4,5}", "(3 in {1,2,3,4,5})");
 	// }