test: complete after error syntax

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

@@ -0,0 +1,116 @@
+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 Error Statement', () => {
+    const spark = new SparkSQL();
+
+    const keywordResult = [
+        '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 and in multiline', () => {
+        const pos: CaretPosition = {
+            lineNumber: 3,
+            column: 2,
+        };
+        const keywords = spark.getSuggestionAtCaretPosition(syntaxSql, pos)?.keywords;
+        expect(keywords).toMatchUnorderedArrary(keywordResult);
+    });
+
+    test('Syntax error but end with semi and in single line', () => {
+        const pos: CaretPosition = {
+            lineNumber: 5,
+            column: 20,
+        };
+        const keywords = spark.getSuggestionAtCaretPosition(syntaxSql, pos)?.keywords;
+        expect(keywords).toMatchUnorderedArrary(keywordResult);
+    });
+
+    test('Syntax error but start with keyword and in multiline', () => {
+        const pos: CaretPosition = {
+            lineNumber: 10,
+            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 and in single line', () => {
+        const pos: CaretPosition = {
+            lineNumber: 12,
+            column: 30,
+        };
+        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

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+-- error syntax but end with semi, should suggestion keywords which can start a single statement
+SELECT  FROM tb1;
+I
+
+SELECT  FROM tb1; I
+
+
+-- error syntax but start with keyword, should suggestion token at caret position
+SELECT  FROM tb2
+INSERT INTO 
+
+SELECT  FROM tb2 INSERT INTO