PlantUML integration

test/script_loader.test.js

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+/* jshint -W117 */
+const fs = require('fs');
+const path = require('path');
+const utils = require('./test_utils');
+
+const dataDir = 'test_data';
+
+beforeEach(() => {
+  utils.deleteFolderSync(dataDir);
+  fs.mkdirSync(dataDir);
+});
+
+afterAll(() => {
+  if (fs.existsSync(dataDir)) {
+    utils.deleteFolderSync(dataDir);
+  }
+});
+
+test('load 1 script', () => {
+  const file = path.join(dataDir, 'test.js');
+  fs.writeFileSync(file, `
+           var a = 5;
+           function b(){
+            return a;
+           }`);
+  require('../src/script_loader')(file);
+  expect(global['b']).toBeDefined();
+  expect(global['b']()).toBe(5);
+});
+
+test('load 2 script', () => {
+  const file1 = path.join(dataDir, 'test.js');
+  fs.writeFileSync(file1, `
+           var a = 5;
+           function b(){
+            return a;
+           }`);
+  const file2 = path.join(dataDir, 'test2.js');
+  fs.writeFileSync(file2, `
+           var a = 9;
+           function b(){
+            return a;
+           }`);
+  require('../src/script_loader')(file1);
+  expect(global['b']).toBeDefined();
+  expect(global['b']()).toBe(5);
+
+  require('../src/script_loader.js')(file2);
+  expect(global['b']).toBeDefined();
+  expect(global['b']()).toBe(9);
+});