query splitter initial version

packages/querysplitter/src/splitter.test.ts

@@ -0,0 +1,33 @@
+import { splitQuery } from './splitQuery';
+
+test('simple query', () => {
+  const output = splitQuery('select * from A');
+  expect(output).toEqual(['select * from A']);
+});
+
+test('correct split 2 queries', () => {
+  const output = splitQuery('SELECT * FROM `table1`;SELECT * FROM `table2`;');
+  expect(output).toEqual(['SELECT * FROM `table1`', 'SELECT * FROM `table2`']);
+});
+
+test('correct split 2 queries - no end semicolon', () => {
+  const output = splitQuery('SELECT * FROM `table1`;SELECT * FROM `table2`');
+  expect(output).toEqual(['SELECT * FROM `table1`', 'SELECT * FROM `table2`']);
+});
+
+test('delete empty query', () => {
+  const output = splitQuery(';;;\n;;SELECT * FROM `table1`;;;;;SELECT * FROM `table2`;;; ;;;');
+  expect(output).toEqual(['SELECT * FROM `table1`', 'SELECT * FROM `table2`']);
+});
+
+test('should handle double backtick', () => {
+  const input = ['CREATE TABLE `a``b` (`c"d` INT)', 'CREATE TABLE `a````b` (`c"d` INT)'];
+  const output = splitQuery(input.join(';\n') + ';');
+  expect(output).toEqual(input);
+});
+
+test('semicolon inside string', () => {
+  const input = ['CREATE TABLE [a1]', "INSERT INTO [a1] (x) VALUES ('1;2;3;4')"];
+  const output = splitQuery(input.join(';\n') + ';');
+  expect(output).toEqual(input);
+});