jest

Author: pyramation

packages/parser/__tests__/parser.test.ts

@@ -0,0 +1,110 @@
+import { parse, parseSync, deparse, deparseSync, loadModule } from '../src';
+
+describe('pgsql-parser', () => {
+  describe('Async API', () => {
+    it('should parse a simple SELECT statement', async () => {
+      const sql = 'SELECT * FROM test_table';
+      const parseResult = await parse(sql);
+
+      expect(parseResult).toBeDefined();
+      expect(parseResult.stmts).toBeDefined();
+      expect(Array.isArray(parseResult.stmts)).toBe(true);
+      expect(parseResult.stmts!.length).toBeGreaterThan(0);
+      expect(parseResult.stmts![0]).toHaveProperty('stmt');
+    });
+
+    it('should deparse an AST back to SQL', async () => {
+      const sql = 'SELECT * FROM test_table';
+      const parseResult = await parse(sql);
+      const deparsed = await deparse(parseResult);
+
+      expect(deparsed).toBeDefined();
+      expect(typeof deparsed).toBe('string');
+      expect(deparsed.toLowerCase()).toContain('select');
+      expect(deparsed.toLowerCase()).toContain('test_table');
+    });
+
+    it('should support AST manipulation and round-trip', async () => {
+      const sql = 'SELECT * FROM test_table';
+      const parseResult = await parse(sql);
+
+      // Manipulate the AST to change the table name
+      const stmt = parseResult.stmts![0].stmt as any;
+      stmt.SelectStmt.fromClause[0].RangeVar.relname = 'another_table';
+
+      const deparsed = await deparse(parseResult);
+
+      expect(deparsed.toLowerCase()).toContain('another_table');
+      expect(deparsed.toLowerCase()).not.toContain('test_table');
+    });
+
+    it('should parse and deparse more complex queries', async () => {
+      const sql = 'SELECT id, name FROM users WHERE age > 18 ORDER BY name';
+      const parseResult = await parse(sql);
+      const deparsed = await deparse(parseResult);
+
+      expect(deparsed).toBeDefined();
+      expect(deparsed.toLowerCase()).toContain('select');
+      expect(deparsed.toLowerCase()).toContain('users');
+      expect(deparsed.toLowerCase()).toContain('where');
+    });
+  });
+
+  describe('Sync API', () => {
+    beforeAll(async () => {
+      // Initialize module for sync methods
+      await loadModule();
+    });
+
+    it('should parse a simple SELECT statement synchronously', () => {
+      const sql = 'SELECT * FROM test_table';
+      const parseResult = parseSync(sql);
+
+      expect(parseResult).toBeDefined();
+      expect(parseResult.stmts).toBeDefined();
+      expect(Array.isArray(parseResult.stmts)).toBe(true);
+      expect(parseResult.stmts!.length).toBeGreaterThan(0);
+      expect(parseResult.stmts![0]).toHaveProperty('stmt');
+    });
+
+    it('should deparse an AST back to SQL synchronously', () => {
+      const sql = 'SELECT * FROM test_table';
+      const parseResult = parseSync(sql);
+      const deparsed = deparseSync(parseResult);
+
+      expect(deparsed).toBeDefined();
+      expect(typeof deparsed).toBe('string');
+      expect(deparsed.toLowerCase()).toContain('select');
+      expect(deparsed.toLowerCase()).toContain('test_table');
+    });
+
+    it('should support AST manipulation with sync methods', () => {
+      const sql = 'SELECT * FROM test_table';
+      const parseResult = parseSync(sql);
+
+      // Manipulate the AST to change the table name
+      const stmt = parseResult.stmts![0].stmt as any;
+      stmt.SelectStmt.fromClause[0].RangeVar.relname = 'modified_table';
+
+      const deparsed = deparseSync(parseResult);
+
+      expect(deparsed.toLowerCase()).toContain('modified_table');
+      expect(deparsed.toLowerCase()).not.toContain('test_table');
+    });
+  });
+
+  describe('Error handling', () => {
+    it('should handle invalid SQL gracefully', async () => {
+      const invalidSql = 'SELECT * FROM';
+
+      await expect(parse(invalidSql)).rejects.toThrow();
+    });
+
+    it('should handle invalid SQL gracefully with sync methods', async () => {
+      await loadModule();
+      const invalidSql = 'SELECT * FROM';
+
+      expect(() => parseSync(invalidSql)).toThrow();
+    });
+  });
+});

packages/parser/jest.config.js

@@ -14,5 +14,5 @@ module.exports = {
     transformIgnorePatterns: [`/node_modules/*`],
     testRegex: "(/__tests__/.*|(\\.|/)(test|spec))\\.(jsx?|tsx?)$",
     moduleFileExtensions: ["ts", "tsx", "js", "jsx", "json", "node"],
-    modulePathIgnorePatterns: ["dist/*"]
+    modulePathIgnorePatterns: ["dist/*", "versions/*"]
 };

packages/proto-parser/__tests__/__snapshots__/enum-maps.test.ts.snap

@@ -1,4 +1,4 @@
-// Jest Snapshot v1, https://goo.gl/fbAQLP
+// Jest Snapshot v1, https://jestjs.io/docs/snapshot-testing
 
 exports[`enum-maps disabled enum maps 1`] = `
 [

packages/proto-parser/__tests__/__snapshots__/enum-utils.test.ts.snap

@@ -1,4 +1,4 @@
-// Jest Snapshot v1, https://goo.gl/fbAQLP
+// Jest Snapshot v1, https://jestjs.io/docs/snapshot-testing
 
 exports[`enum utils nested objects format generates nested objects with custom filenames 1`] = `
 [

packages/proto-parser/__tests__/__snapshots__/enums.test.ts.snap

@@ -1,4 +1,4 @@
-// Jest Snapshot v1, https://goo.gl/fbAQLP
+// Jest Snapshot v1, https://jestjs.io/docs/snapshot-testing
 
 exports[`pure enums 1`] = `
 [

packages/proto-parser/__tests__/__snapshots__/json.test.ts.snap

@@ -1,4 +1,4 @@
-// Jest Snapshot v1, https://goo.gl/fbAQLP
+// Jest Snapshot v1, https://jestjs.io/docs/snapshot-testing
 
 exports[`enums enumMap json enabled 1`] = `
 [

packages/proto-parser/__tests__/__snapshots__/runtime-schema.test.ts.snap

@@ -1,4 +1,4 @@
-// Jest Snapshot v1, https://goo.gl/fbAQLP
+// Jest Snapshot v1, https://jestjs.io/docs/snapshot-testing
 
 exports[`runtime-schema custom filename json 1`] = `
 [

packages/proto-parser/__tests__/__snapshots__/types.test.ts.snap

@@ -1,4 +1,4 @@
-// Jest Snapshot v1, https://goo.gl/fbAQLP
+// Jest Snapshot v1, https://jestjs.io/docs/snapshot-testing
 
 exports[`types fieldsRequired 1`] = `
 [

packages/proto-parser/__tests__/__snapshots__/utils.test.ts.snap

@@ -1,4 +1,4 @@
-// Jest Snapshot v1, https://goo.gl/fbAQLP
+// Jest Snapshot v1, https://jestjs.io/docs/snapshot-testing
 
 exports[`utils astHelpers enabled 1`] = `
 [