/** Test basic || expression */
@Test
public void orExpression() throws RecognitionException {
String queryString = "select * where a = 1 or b > 2";
ANTLRStringStream in = new ANTLRStringStream(queryString);
QueryFilterLexer lexer = new QueryFilterLexer(in);
TokenRewriteStream tokens = new TokenRewriteStream(lexer);
QueryFilterParser parser = new QueryFilterParser(tokens);
Query query = parser.ql().query;
Operand root = query.getRootOperand();
OrOperand and = (OrOperand) root;
Equal equal = (Equal) and.getLeft();
assertEquals("a", equal.getProperty().getValue());
assertEquals(1, ((LongLiteral) equal.getLiteral()).getValue().intValue());
GreaterThan greater = (GreaterThan) and.getRight();
assertEquals("b", greater.getProperty().getValue());
assertEquals(2, ((LongLiteral) greater.getLiteral()).getValue().intValue());
}
/** Simple test that constructs and AST from the ANTLR generated files */
@Test
public void greaterThan() throws RecognitionException {
String queryString = "select * where a > 5";
ANTLRStringStream in = new ANTLRStringStream(queryString);
QueryFilterLexer lexer = new QueryFilterLexer(in);
TokenRewriteStream tokens = new TokenRewriteStream(lexer);
QueryFilterParser parser = new QueryFilterParser(tokens);
Query query = parser.ql().query;
Operand root = query.getRootOperand();
GreaterThan equal = (GreaterThan) root;
assertEquals("a", equal.getProperty().getValue());
assertEquals(5, ((LongLiteral) equal.getLiteral()).getValue().intValue());
queryString = "select * where a gt 5";
in = new ANTLRStringStream(queryString);
lexer = new QueryFilterLexer(in);
tokens = new TokenRewriteStream(lexer);
parser = new QueryFilterParser(tokens);
query = parser.ql().query;
root = query.getRootOperand();
equal = (GreaterThan) root;
assertEquals("a", equal.getProperty().getValue());
assertEquals(5, ((LongLiteral) equal.getLiteral()).getValue().intValue());
}