@Test
public void testParseWithEqBinaryExpressionWithBooleanTrue()
	throws ExpressionVisitException {

	Expression expression = _filterParserImpl.parse(
		"booleanExternal eq true");
	Assert.assertNotNull(expression);
	BinaryExpression binaryExpression = (BinaryExpression)expression;
	MemberExpression memberExpression =
		(MemberExpression)binaryExpression.getLeftOperationExpression();
	Assert.assertEquals(
		BinaryExpression.Operation.EQ, binaryExpression.getOperation());
	PrimitivePropertyExpression primitivePropertyExpression =
		(PrimitivePropertyExpression)memberExpression.getExpression();
	Assert.assertEquals(
		"booleanExternal", primitivePropertyExpression.getName());
	LiteralExpression literalExpression =
		(LiteralExpression)binaryExpression.getRightOperationExpression();
	Assert.assertEquals("true", literalExpression.getText());
	Assert.assertEquals(
		LiteralExpression.Type.BOOLEAN, literalExpression.getType());
}