feat: add generic and plsql basic parser file

test/parser/plsql/lexer.test.ts

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

test/parser/plsql/listener.test.ts

@@ -0,0 +1,22 @@
+import SQLParser, { PlSqlParserListener } from '../../../src/parser/plsql';
+
+describe('PLSQL 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 PlSqlParserListener {
+            enterTable_ref_list(ctx): void {
+                result = ctx.getText().toLowerCase();
+            }
+        }
+        const listenTableName: any = new MyListener();
+
+        await parser.listen(listenTableName, parserTree);
+        expect(result).toBe(expectTableName);
+    });
+});

test/parser/plsql/syntax.test.ts

@@ -0,0 +1,23 @@
+import SQLParser from '../../../src/parser/plsql';
+
+describe('PLSQL Syntax Tests', () => {
+    const parser = new SQLParser();
+
+    test('Test simple select Statement', () => {
+        const sql = 'select id,name from user1;';
+        const result = parser.validate(sql);
+
+        expect(result.length).toBe(0);
+    });
+
+    test(`Test select, where, order by`, () => {
+        const sql = `
+            select eid, emp_last, mgr_id, reportlevel
+            from reports_to_101 r, auto a
+            where r.c1 = a.c2
+            order by reportlevel, eid
+        `;
+        const result = parser.validate(sql);
+        expect(result.length).toBe(0);
+    });
+});

test/parser/plsql/visitor.test.ts

@@ -0,0 +1,23 @@
+import SQLParser, { PlSqlParserVisitor } from '../../../src/parser/plsql';
+
+describe('PLSQL Visitor Tests', () => {
+    const expectTableName = 'user1';
+    const sql = `select id,name,sex from ${expectTableName};`;
+    const parser = new SQLParser();
+
+    const parserTree = parser.parse(sql);
+
+    test('Visitor visitTable_ref_list', () => {
+        let result = '';
+        class MyVisitor extends PlSqlParserVisitor {
+            visitTable_ref_list(ctx): void {
+                result = ctx.getText().toLowerCase();
+                super.visitTable_ref_list(ctx);
+            }
+        }
+        const visitor: any = new MyVisitor();
+        visitor.visit(parserTree);
+
+        expect(result).toBe(expectTableName);
+    });
+});