Fix for issue 13272

editor/tools/plugins/com.google.dart.engine_test/src/com/google/dart/engine/internal/constant/ConstantVisitorTest.java

Index: editor/tools/plugins/com.google.dart.engine_test/src/com/google/dart/engine/internal/constant/ConstantVisitorTest.java
diff --git a/editor/tools/plugins/com.google.dart.engine_test/src/com/google/dart/engine/internal/constant/ConstantVisitorTest.java b/editor/tools/plugins/com.google.dart.engine_test/src/com/google/dart/engine/internal/constant/ConstantVisitorTest.java
new file mode 100644
index 0000000000000000000000000000000000000000..7242fa44fad72948b9321e649bde8df9b4223a75
--- /dev/null
+++ b/editor/tools/plugins/com.google.dart.engine_test/src/com/google/dart/engine/internal/constant/ConstantVisitorTest.java
@@ -0,0 +1,88 @@
+/*
+ * Copyright (c) 2013, the Dart project authors.
+ * 
+ * Licensed under the Eclipse Public License v1.0 (the "License"); you may not use this file except
+ * in compliance with the License. You may obtain a copy of the License at
+ * 
+ * http://www.eclipse.org/legal/epl-v10.html
+ * 
+ * Unless required by applicable law or agreed to in writing, software distributed under the License
+ * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+ * or implied. See the License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.dart.engine.internal.constant;
+
+import com.google.dart.engine.EngineTestCase;
+import com.google.dart.engine.ast.ConditionalExpression;
+import com.google.dart.engine.ast.Expression;
+
+import static com.google.dart.engine.ast.ASTFactory.booleanLiteral;
+import static com.google.dart.engine.ast.ASTFactory.conditionalExpression;
+import static com.google.dart.engine.ast.ASTFactory.identifier;
+import static com.google.dart.engine.ast.ASTFactory.integer;
+
+import java.math.BigInteger;
+
+public class ConstantVisitorTest extends EngineTestCase {
+  public void test_visitConditionalExpression_false() {
+    Expression thenExpression = integer(1L);
+    Expression elseExpression = integer(0L);
+    ConditionalExpression expression = conditionalExpression(
+        booleanLiteral(false),
+        thenExpression,
+        elseExpression);
+    EvaluationResultImpl result = expression.accept(new ConstantVisitor());
+    assertInstanceOf(ValidResult.class, result);
+    Object value = ((ValidResult) result).getValue();
+    assertInstanceOf(BigInteger.class, value);
+    assertEquals(0L, ((BigInteger) value).longValue());
+  }
+
+  public void test_visitConditionalExpression_nonBooleanCondition() {
+    Expression thenExpression = integer(1L);
+    Expression elseExpression = integer(0L);
+    ConditionalExpression expression = conditionalExpression(
+        integer(0L),
+        thenExpression,
+        elseExpression);
+    EvaluationResultImpl result = expression.accept(new ConstantVisitor());
+    assertInstanceOf(ErrorResult.class, result);
+  }
+
+  public void test_visitConditionalExpression_nonConstantElse() {
+    Expression thenExpression = integer(1L);
+    Expression elseExpression = identifier("x");
+    ConditionalExpression expression = conditionalExpression(
+        booleanLiteral(true),
+        thenExpression,
+        elseExpression);
+    EvaluationResultImpl result = expression.accept(new ConstantVisitor());
+    assertInstanceOf(ErrorResult.class, result);
+  }
+
+  public void test_visitConditionalExpression_nonConstantThen() {
+    Expression thenExpression = identifier("x");
+    Expression elseExpression = integer(0L);
+    ConditionalExpression expression = conditionalExpression(
+        booleanLiteral(true),
+        thenExpression,
+        elseExpression);
+    EvaluationResultImpl result = expression.accept(new ConstantVisitor());
+    assertInstanceOf(ErrorResult.class, result);
+  }
+
+  public void test_visitConditionalExpression_true() {
+    Expression thenExpression = integer(1L);
+    Expression elseExpression = integer(0L);
+    ConditionalExpression expression = conditionalExpression(
+        booleanLiteral(true),
+        thenExpression,
+        elseExpression);
+    EvaluationResultImpl result = expression.accept(new ConstantVisitor());
+    assertInstanceOf(ValidResult.class, result);
+    Object value = ((ValidResult) result).getValue();
+    assertInstanceOf(BigInteger.class, value);
+    assertEquals(1L, ((BigInteger) value).longValue());
+  }
+}