Add placeholder unit test for ANSI parser

tests/sqlparser_ansi.rs

@@ -0,0 +1,32 @@
+extern crate log;
+extern crate sqlparser;
+
+use sqlparser::dialect::AnsiSqlDialect;
+use sqlparser::sqlast::*;
+use sqlparser::sqlparser::*;
+use sqlparser::sqltokenizer::*;
+
+#[test]
+fn parse_simple_select() {
+    let sql = String::from("SELECT id, fname, lname FROM customer WHERE id = 1");
+    let ast = parse_sql(&sql);
+    match ast {
+        ASTNode::SQLSelect {
+            projection, ..
+        } => {
+            assert_eq!(3, projection.len());
+        }
+        _ => assert!(false),
+    }
+}
+
+
+fn parse_sql(sql: &str) -> ASTNode {
+    let dialect = AnsiSqlDialect {};
+    let mut tokenizer = Tokenizer::new(&dialect,&sql, );
+    let tokens = tokenizer.tokenize().unwrap();
+    let mut parser = Parser::new(tokens);
+    let ast = parser.parse().unwrap();
+    ast
+}
+