mirror of
https://github.com/apache/datafusion-sqlparser-rs.git
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re-instate tests for generic parser
This commit is contained in:
Andy Grove
parent
beb1a7a735
commit
035ef52696
2 changed files with 345 additions and 0 deletions
345
tests/sqlparser_generic.rs
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345
tests/sqlparser_generic.rs
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extern crate log;
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extern crate sqlparser;
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use sqlparser::dialect::GenericSqlDialect;
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use sqlparser::sqlast::*;
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use sqlparser::sqlparser::*;
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use sqlparser::sqltokenizer::*;
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#[test]
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fn parse_delete_statement() {
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let sql: &str = "DELETE FROM 'table'";
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match parse_sql(&sql) {
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ASTNode::SQLDelete { relation, .. } => {
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assert_eq!(
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Some(Box::new(ASTNode::SQLValue(Value::SingleQuotedString("table".to_string())))),
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relation
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);
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}
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_ => assert!(false),
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}
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}
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#[test]
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fn parse_where_delete_statement() {
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let sql: &str = "DELETE FROM 'table' WHERE name = 5";
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use self::ASTNode::*;
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use self::SQLOperator::*;
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match parse_sql(&sql) {
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ASTNode::SQLDelete {
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relation,
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selection,
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..
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} => {
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assert_eq!(
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Some(Box::new(ASTNode::SQLValue(Value::SingleQuotedString("table".to_string())))),
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relation
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);
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assert_eq!(
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SQLBinaryExpr {
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left: Box::new(SQLIdentifier("name".to_string())),
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op: Eq,
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right: Box::new(SQLValue(Value::Long(5))),
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},
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*selection.unwrap(),
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);
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}
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_ => assert!(false),
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}
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}
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#[test]
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fn parse_simple_select() {
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let sql = String::from("SELECT id, fname, lname FROM customer WHERE id = 1 LIMIT 5");
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let ast = parse_sql(&sql);
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match ast {
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ASTNode::SQLSelect {
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projection, limit, ..
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} => {
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assert_eq!(3, projection.len());
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assert_eq!(Some(Box::new(ASTNode::SQLValue(Value::Long(5)))), limit);
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}
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_ => assert!(false),
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}
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}
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#[test]
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fn parse_select_wildcard() {
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let sql = String::from("SELECT * FROM customer");
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let ast = parse_sql(&sql);
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match ast {
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ASTNode::SQLSelect { projection, .. } => {
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assert_eq!(1, projection.len());
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assert_eq!(ASTNode::SQLWildcard, projection[0]);
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}
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_ => assert!(false),
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}
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}
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#[test]
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fn parse_select_count_wildcard() {
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let sql = String::from("SELECT COUNT(*) FROM customer");
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let ast = parse_sql(&sql);
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match ast {
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ASTNode::SQLSelect { projection, .. } => {
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assert_eq!(1, projection.len());
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assert_eq!(
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ASTNode::SQLFunction {
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id: "COUNT".to_string(),
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args: vec![ASTNode::SQLWildcard],
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},
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projection[0]
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);
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}
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_ => assert!(false),
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}
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}
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#[test]
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fn parse_select_string_predicate() {
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let sql = String::from(
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"SELECT id, fname, lname FROM customer \
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WHERE salary != 'Not Provided' AND salary != ''",
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);
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let _ast = parse_sql(&sql);
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//TODO: add assertions
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}
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#[test]
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fn parse_projection_nested_type() {
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let sql = String::from("SELECT customer.address.state FROM foo");
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let _ast = parse_sql(&sql);
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//TODO: add assertions
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}
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#[test]
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fn parse_compound_expr_1() {
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use self::ASTNode::*;
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use self::SQLOperator::*;
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let sql = String::from("a + b * c");
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let ast = parse_sql(&sql);
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assert_eq!(
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SQLBinaryExpr {
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left: Box::new(SQLIdentifier("a".to_string())),
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op: Plus,
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right: Box::new(SQLBinaryExpr {
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left: Box::new(SQLIdentifier("b".to_string())),
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op: Multiply,
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right: Box::new(SQLIdentifier("c".to_string()))
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})
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},
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ast
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);
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}
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#[test]
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fn parse_compound_expr_2() {
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use self::ASTNode::*;
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use self::SQLOperator::*;
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let sql = String::from("a * b + c");
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let ast = parse_sql(&sql);
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assert_eq!(
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SQLBinaryExpr {
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left: Box::new(SQLBinaryExpr {
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left: Box::new(SQLIdentifier("a".to_string())),
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op: Multiply,
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right: Box::new(SQLIdentifier("b".to_string()))
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}),
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op: Plus,
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right: Box::new(SQLIdentifier("c".to_string()))
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},
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ast
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);
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}
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#[test]
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fn parse_is_null() {
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use self::ASTNode::*;
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let sql = String::from("a IS NULL");
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let ast = parse_sql(&sql);
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assert_eq!(SQLIsNull(Box::new(SQLIdentifier("a".to_string()))), ast);
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}
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#[test]
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fn parse_is_not_null() {
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use self::ASTNode::*;
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let sql = String::from("a IS NOT NULL");
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let ast = parse_sql(&sql);
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assert_eq!(SQLIsNotNull(Box::new(SQLIdentifier("a".to_string()))), ast);
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}
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#[test]
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fn parse_select_order_by() {
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let sql = String::from(
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"SELECT id, fname, lname FROM customer WHERE id < 5 ORDER BY lname ASC, fname DESC",
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);
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let ast = parse_sql(&sql);
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match ast {
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ASTNode::SQLSelect { order_by, .. } => {
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assert_eq!(
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Some(vec![
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SQLOrderByExpr {
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expr: Box::new(ASTNode::SQLIdentifier("lname".to_string())),
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asc: true,
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},
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SQLOrderByExpr {
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expr: Box::new(ASTNode::SQLIdentifier("fname".to_string())),
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asc: false,
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},
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]),
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order_by
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);
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}
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_ => assert!(false),
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}
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}
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#[test]
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fn parse_select_group_by() {
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let sql = String::from("SELECT id, fname, lname FROM customer GROUP BY lname, fname");
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let ast = parse_sql(&sql);
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match ast {
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ASTNode::SQLSelect { group_by, .. } => {
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assert_eq!(
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Some(vec![
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ASTNode::SQLIdentifier("lname".to_string()),
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ASTNode::SQLIdentifier("fname".to_string()),
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]),
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group_by
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);
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}
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_ => assert!(false),
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}
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}
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#[test]
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fn parse_limit_accepts_all() {
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let sql = String::from("SELECT id, fname, lname FROM customer WHERE id = 1 LIMIT ALL");
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let ast = parse_sql(&sql);
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match ast {
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ASTNode::SQLSelect {
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projection, limit, ..
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} => {
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assert_eq!(3, projection.len());
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assert_eq!(None, limit);
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}
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_ => assert!(false),
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}
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}
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#[test]
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fn parse_cast() {
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let sql = String::from("SELECT CAST(id AS BIGINT) FROM customer");
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let ast = parse_sql(&sql);
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match ast {
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ASTNode::SQLSelect { projection, .. } => {
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assert_eq!(1, projection.len());
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assert_eq!(
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ASTNode::SQLCast {
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expr: Box::new(ASTNode::SQLIdentifier("id".to_string())),
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data_type: SQLType::BigInt
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},
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projection[0]
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);
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}
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_ => assert!(false),
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}
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}
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#[test]
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fn parse_create_table() {
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let sql = String::from(
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"CREATE TABLE uk_cities (\
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name VARCHAR(100) NOT NULL,\
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lat DOUBLE NULL,\
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lng DOUBLE NULL)",
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);
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let ast = parse_sql(&sql);
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match ast {
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ASTNode::SQLCreateTable { name, columns } => {
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assert_eq!("uk_cities", name);
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assert_eq!(3, columns.len());
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let c_name = &columns[0];
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assert_eq!("name", c_name.name);
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assert_eq!(SQLType::Varchar(Some(100)), c_name.data_type);
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assert_eq!(false, c_name.allow_null);
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let c_lat = &columns[1];
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assert_eq!("lat", c_lat.name);
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assert_eq!(SQLType::Double, c_lat.data_type);
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assert_eq!(true, c_lat.allow_null);
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let c_lng = &columns[2];
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assert_eq!("lng", c_lng.name);
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assert_eq!(SQLType::Double, c_lng.data_type);
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assert_eq!(true, c_lng.allow_null);
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}
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_ => assert!(false),
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}
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}
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#[test]
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fn parse_scalar_function_in_projection() {
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let sql = String::from("SELECT sqrt(id) FROM foo");
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let ast = parse_sql(&sql);
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if let ASTNode::SQLSelect { projection, .. } = ast {
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assert_eq!(
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vec![ASTNode::SQLFunction {
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id: String::from("sqrt"),
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args: vec![ASTNode::SQLIdentifier(String::from("id"))],
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}],
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projection
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);
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} else {
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assert!(false);
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}
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}
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#[test]
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fn parse_aggregate_with_group_by() {
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let sql = String::from("SELECT a, COUNT(1), MIN(b), MAX(b) FROM foo GROUP BY a");
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let _ast = parse_sql(&sql);
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//TODO: assertions
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}
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#[test]
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fn parse_literal_string() {
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let sql = "SELECT 'one'";
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match parse_sql(&sql) {
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ASTNode::SQLSelect { ref projection, .. } => {
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assert_eq!(projection[0], ASTNode::SQLValue(Value::SingleQuotedString("one".to_string())));
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}
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_ => panic!(),
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}
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}
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#[test]
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fn parse_select_version() {
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let sql = "SELECT @@version";
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match parse_sql(&sql) {
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ASTNode::SQLSelect { ref projection, .. } => {
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assert_eq!(
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projection[0],
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ASTNode::SQLIdentifier("@@version".to_string())
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);
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}
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_ => panic!(),
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}
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}
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fn parse_sql(sql: &str) -> ASTNode {
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let dialect = GenericSqlDialect {};
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let mut tokenizer = Tokenizer::new(&dialect,&sql, );
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let tokens = tokenizer.tokenize().unwrap();
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let mut parser = Parser::new(tokens);
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let ast = parser.parse().unwrap();
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ast
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}
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