ProgramParserTest.java 文件源码

@Test
public void testExpensiveQueryParsing() {
    final String yqlQuery = "select * from sources * where "
            + "([{\"ranked\": false}](foo contains \"a\" "
            + "and ([{\"ranked\": true}](bar contains \"b\" "
            + "or ([{\"ranked\": false}](foo contains \"c\" "
            + "and foo contains ([{\"ranked\": true}]\"d\")))))));";
    ProgramParser parser = new ProgramParser();
    OperatorNode<?> ast;
    long start = System.currentTimeMillis();
    try {
        ast = parser.parse("query", yqlQuery);
    } catch (IOException | RecognitionException e) {
        throw new IllegalArgumentException(e);
    }
    long elapsed = System.currentTimeMillis() - start;
    Assert.assertNotNull(ast);
    System.out.println("Parsing required " + elapsed + " ms");
}