feat: add generic and plsql basic parser file

test/parser/hive/lexer.test.ts

@@ -0,0 +1,12 @@
+import SQLParser from '../../../src/parser/hive';
+
+describe('HiveSQL Lexer tests', () => {
+    const parser = new SQLParser();
+    // select id,name,sex from user1;
+    const sql = 'SELECT * FROM t1';
+    const tokens = parser.getAllTokens(sql);
+
+    test('token counts', () => {
+        expect(tokens.length).toBe(12);
+    });
+});

test/parser/hive/listener.test.ts

@@ -0,0 +1,22 @@
+import SQLParser, { HiveSqlListener } from '../../../src/parser/hive';
+
+describe('Hive SQL Listener Tests', () => {
+    const expectTableName = 'user1';
+    const sql = `select id,name,sex from ${expectTableName};`;
+    const parser = new SQLParser();
+
+    const parserTree = parser.parse(sql);
+
+    test('Listener enterTableName', async () => {
+        let result = '';
+        class MyListener extends HiveSqlListener {
+            enterTableName(ctx): void {
+                result = ctx.getText().toLowerCase();
+            }
+        }
+        const listenTableName: any = new MyListener();
+
+        await parser.listen(listenTableName, parserTree);
+        expect(result).toBe(expectTableName);
+    });
+});

test/parser/hive/syntax.test.ts

@@ -0,0 +1,18 @@
+import SQLParser from '../../../src/parser/hive';
+
+describe('Hive SQL Syntax Tests', () => {
+    const parser = new SQLParser();
+
+    test('Select Statement', () => {
+        const sql = 'SELECT * FROM employee WHERE salary>30000;';
+        const result = parser.validate(sql);
+
+        expect(result.length).toBe(0);
+    });
+
+    test('Select 1+1', () => {
+        const sql = 'SELECT 1+1;';
+        const result = parser.validate(sql);
+        expect(result.length).toBe(0);
+    });
+});

test/parser/hive/visitor.test.ts

@@ -0,0 +1,27 @@
+import SQLParser, { HiveSqlVisitor } from '../../../src/parser/hive';
+
+describe('Generic SQL Visitor Tests', () => {
+    const expectTableName = 'user1';
+    const sql = `select id,name,sex from ${expectTableName};`;
+    const parser = new SQLParser();
+
+    const parserTree = parser.parse(sql, (error) => {
+        console.log('Parse error:', error);
+    });
+
+    console.log('Parser tree string:', parser.toString(parserTree));
+
+    test('Visitor visitTableName', () => {
+        let result = '';
+        class MyVisitor extends HiveSqlVisitor {
+            visitTable_name(ctx): void {
+                result = ctx.getText().toLowerCase();
+                super.visitTable_name(ctx);
+            }
+        }
+        const visitor: any = new MyVisitor();
+        visitor.visit(parserTree);
+
+        expect(result).toBe(expectTableName);
+    });
+});