test: complete after error syntax

Author: liuxy0551

test/parser/spark/suggestion/completeAfterSyntaxError.test.ts

@@ -0,0 +1,106 @@
+import fs from 'fs';
+import path from 'path';
+import { SparkSQL } from 'src/parser/spark';
+import { CaretPosition, EntityContextType } from 'src/parser/common/types';
+
+const syntaxSql = fs.readFileSync(
+    path.join(__dirname, 'fixtures', 'completeAfterSyntaxError.sql'),
+    'utf-8'
+);
+
+describe('SparkSQL Complete After Syntax Error', () => {
+    const spark = new SparkSQL();
+
+    test('Syntax error but end with semi, should suggest keywords which can start a single statement', () => {
+        const sql1 = `SELECT  FROM tb1;\nI`;
+        const pos: CaretPosition = {
+            lineNumber: 2,
+            column: 2,
+        };
+        const keywords = spark.getSuggestionAtCaretPosition(sql1, pos)?.keywords;
+        expect(keywords).toMatchUnorderedArrary([
+            'WITH',
+            'SELECT',
+            'MAP',
+            'REDUCE',
+            'FROM',
+            'TABLE',
+            'VALUES',
+            'INSERT',
+            'DELETE',
+            'UPDATE',
+            'MERGE',
+            'USE',
+            'SET',
+            'CREATE',
+            'ALTER',
+            'DROP',
+            'SHOW',
+            'REPLACE',
+            'ANALYZE',
+            'DECLARE',
+            'EXPLAIN',
+            'DESC',
+            'DESCRIBE',
+            'COMMENT',
+            'REFRESH',
+            'CACHE',
+            'UNCACHE',
+            'CLEAR',
+            'LOAD',
+            'TRUNCATE',
+            'MSCK',
+            'REPAIR',
+            'ADD',
+            'LIST',
+            'RESET',
+            'OPTIMIZE',
+            'GRANT',
+            'REVOKE',
+            'EXPORT',
+            'IMPORT',
+            'LOCK',
+            'UNLOCK',
+            'START',
+            'COMMIT',
+            'ROLLBACK',
+            'DFS',
+        ]);
+    });
+
+    test('Syntax error but end with semi, should suggest token', () => {
+        const pos: CaretPosition = {
+            lineNumber: 3,
+            column: 13,
+        };
+        const suggestion = spark.getSuggestionAtCaretPosition(syntaxSql, pos);
+        expect(suggestion).not.toBeUndefined();
+
+        // syntax
+        const syntaxes = suggestion?.syntax;
+        expect(syntaxes.length).toBe(1);
+        expect(syntaxes[0].syntaxContextType).toBe(EntityContextType.TABLE);
+
+        const keywords = suggestion?.keywords;
+        expect(keywords.length).toBe(1);
+        expect(keywords[0]).toBe('TABLE');
+    });
+
+    test('Syntax error but start with keyword, should suggest token', () => {
+        const pos: CaretPosition = {
+            lineNumber: 9,
+            column: 13,
+        };
+        const suggestion = spark.getSuggestionAtCaretPosition(syntaxSql, pos);
+        expect(suggestion).not.toBeUndefined();
+
+        // syntax
+        const syntaxes = suggestion?.syntax;
+        expect(syntaxes.length).toBe(1);
+        expect(syntaxes[0].syntaxContextType).toBe(EntityContextType.TABLE);
+
+        const keywords = suggestion?.keywords;
+        expect(keywords.length).toBe(1);
+        expect(keywords[0]).toBe('TABLE');
+    });
+});

test/parser/spark/suggestion/fixtures/completeAfterSyntaxError.sql

@@ -0,0 +1,9 @@
+-- error syntax but end with semi
+SELECT  FROM tb2;
+INSERT INTO 
+
+
+
+-- error syntax but start with keyword
+SELECT  FROM tb3
+INSERT INTO