package org.apache.tapestry.enhance;
import ognl.Node;
import ognl.Ognl;
import ognl.OgnlContext;
import org.apache.tapestry.TestBase;
import org.apache.tapestry.services.impl.HiveMindExpressionCompiler;
import org.testng.annotations.Test;
/**
* Tests functionality of {@link org.apache.tapestry.services.impl.HiveMindExpressionCompiler}.
*/
@Test
public class TestHiveMindExpressionCompiler extends TestBase {
ClassFactoryImpl _classFactory = new ClassFactoryImpl();
HiveMindExpressionCompiler _compiler = new HiveMindExpressionCompiler(_classFactory);
public void test_Duplicate_Class_Compiler()
throws Exception
{
OgnlContext context = (OgnlContext) Ognl.createDefaultContext(null);
BasicObject root = new BasicObject();
String expr = "name";
Node expression = (Node) Ognl.parseExpression(expr);
_compiler.compileExpression(context, expression, root);
assert expression.getAccessor() != null;
assertEquals(expression.getAccessor().get(context, root), root.getName());
Node expression2 = (Node) Ognl.parseExpression(expr);
_compiler.compileExpression(context, expression2, root);
assert expression2.getAccessor() != null;
assertEquals(expression2.getAccessor().get(context, root), root.getName());
assertNotSame(expression2.getAccessor().getClass().getName(), expression.getAccessor().getClass().getName());
}
public void test_Divide_By_Zero()
throws Exception
{
OgnlContext context = (OgnlContext) Ognl.createDefaultContext(null);
String expr = "true ? 1 : 1/0";
Node expression = (Node) Ognl.parseExpression(expr);
_compiler.compileExpression(context, expression, expr);
assertEquals(expression.getAccessor().get(context, null), Integer.valueOf(1));
}
public void test_ClassFab_Generation_Count_With_Uncompilable_Expression()
throws Exception
{
OgnlContext context = (OgnlContext) Ognl.createDefaultContext(null);
BasicObject root = new BasicObject();
String exprStr = "user != null && user.name != null ? user.name : name";
Node expression = (Node) Ognl.parseExpression(exprStr);
int prevCount = _classFactory._classCounter;
_compiler.compileExpression(context, expression, root);
assert expression.getAccessor() == null;
assertEquals(_classFactory._classCounter, prevCount);
root.setUser(new User());
_compiler.compileExpression(context, expression, root);
assert expression.getAccessor() != null;
assertEquals(_classFactory._classCounter, prevCount + 1);
}
public void test_ClassFab_Generation_Count_With_Uncompilable_Expression2()
throws Exception
{
OgnlContext context = (OgnlContext) Ognl.createDefaultContext(null);
BasicObject root = new BasicObject();
String exprStr = "user ? user.name : name";
Node expression = (Node) Ognl.parseExpression(exprStr);
int prevCount = _classFactory._classCounter;
_compiler.compileExpression(context, expression, root);
assert expression.getAccessor() == null;
assertEquals(_classFactory._classCounter, prevCount);
root.setUser(new User());
_compiler.compileExpression(context, expression, root);
assert expression.getAccessor() != null;
assertEquals(_classFactory._classCounter, prevCount + 1);
}
}