TestASTFilterSpecHelper.java 文件源码

public void testGetPropertyName() throws Exception {
    final String PROPERTY = "a('aa').b[1].c";

    // Should parse and result in the exact same property name
    Pair<Tree, CommonTokenStream> parsed = SupportParserHelper.parseEventProperty(PROPERTY);
    Tree propertyNameExprNode = parsed.getFirst().getChild(0);
    ASTUtil.dumpAST(propertyNameExprNode);
    String propertyName = ((RuleNode) propertyNameExprNode).getText();
    assertEquals(PROPERTY, propertyName);

    // Try AST with tokens separated, same property name
    parsed = SupportParserHelper.parseEventProperty("a(    'aa'   ). b [ 1 ] . c");
    propertyNameExprNode = parsed.getFirst().getChild(0);
    propertyName = ((RuleNode) propertyNameExprNode).getText();
    assertEquals(PROPERTY, propertyName);
}