1 files changed, 95 insertions, 0 deletions
diff --git a/javaparser-testing/src/test/java/com/github/javaparser/ast/nodeTypes/NodeWithVariablesTest.java b/javaparser-testing/src/test/java/com/github/javaparser/ast/nodeTypes/NodeWithVariablesTest.java
new file mode 100644
index 000000000..b736333c1
--- /dev/null
+++ b/javaparser-testing/src/test/java/com/github/javaparser/ast/nodeTypes/NodeWithVariablesTest.java
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2007-2010 Júlio Vilmar Gesser.
+ * Copyright (C) 2011, 2013-2016 The JavaParser Team.
+ *
+ * This file is part of JavaParser.
+ *
+ * JavaParser can be used either under the terms of
+ * a) the GNU Lesser General Public License as published by
+ *     the Free Software Foundation, either version 3 of the License, or
+ *     (at your option) any later version.
+ * b) the terms of the Apache License
+ *
+ * You should have received a copy of both licenses in LICENCE.LGPL and
+ * LICENCE.APACHE. Please refer to those files for details.
+ *
+ * JavaParser is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ */
+
+package com.github.javaparser.ast.nodeTypes;
+
+import com.github.javaparser.JavaParser;
+import com.github.javaparser.ast.expr.VariableDeclarationExpr;
+import com.github.javaparser.ast.type.PrimitiveType;
+import org.junit.Test;
+
+import static com.github.javaparser.JavaParser.*;
+import static org.junit.Assert.assertEquals;
+
+public class NodeWithVariablesTest {
+
+    @Test
+    public void getCommonTypeWorksForNormalVariables() {
+        VariableDeclarationExpr declaration = parseVariableDeclarationExpr("int a,b");
+        assertEquals(PrimitiveType.intType(), declaration.getCommonType());
+    }
+
+    @Test
+    public void getCommonTypeWorksForArrayTypes() {
+        parseVariableDeclarationExpr("int a[],b[]").getCommonType();
+    }
+
+    @Test(expected = AssertionError.class)
+    public void getCommonTypeFailsOnArrayDifferences() {
+        parseVariableDeclarationExpr("int a[],b[][]").getCommonType();
+    }
+
+    @Test(expected = AssertionError.class)
+    public void getCommonTypeFailsOnDodgySetterUsage() {
+        VariableDeclarationExpr declaration = parseVariableDeclarationExpr("int a,b");
+        declaration.getVariable(1).setType(String.class);
+        declaration.getCommonType();
+    }
+
+    @Test(expected = AssertionError.class)
+    public void getCommonTypeFailsOnInvalidEmptyVariableList() {
+        VariableDeclarationExpr declaration = parseVariableDeclarationExpr("int a");
+        declaration.getVariables().clear();
+        declaration.getCommonType();
+    }
+
+    @Test
+    public void getElementTypeWorksForNormalVariables() {
+        VariableDeclarationExpr declaration = parseVariableDeclarationExpr("int a,b");
+        assertEquals(PrimitiveType.intType(), declaration.getElementType());
+    }
+
+    @Test
+    public void getElementTypeWorksForArrayTypes() {
+        VariableDeclarationExpr declaration = parseVariableDeclarationExpr("int a[],b[]");
+        assertEquals(PrimitiveType.intType(), declaration.getElementType());
+    }
+
+    @Test
+    public void getElementTypeIsOkayWithArrayDifferences() {
+        parseVariableDeclarationExpr("int a[],b[][]").getElementType();
+    }
+
+    @Test(expected = AssertionError.class)
+    public void getElementTypeFailsOnDodgySetterUsage() {
+        VariableDeclarationExpr declaration = parseVariableDeclarationExpr("int a,b");
+        declaration.getVariable(1).setType(String.class);
+        declaration.getElementType();
+    }
+
+    @Test(expected = AssertionError.class)
+    public void getElementTypeFailsOnInvalidEmptyVariableList() {
+        VariableDeclarationExpr declaration = parseVariableDeclarationExpr("int a");
+        declaration.getVariables().clear();
+        declaration.getElementType();
+    }
+
+}
+\ No newline at end of file