n8n/packages/workflow/test/ExpressionExtensions/ExpressionExtension.test.ts
Valya 287fa9cd06
test(core): Add basic expression tests (no-changelog) (#5439)
* test(core): add basic expression tests

* test: fix $if test not working properly
2023-02-10 10:05:34 +01:00

231 lines
9.9 KiB
TypeScript

/**
* @jest-environment jsdom
*/
import { extendTransform } from '@/Extensions';
import { joinExpression, splitExpression } from '@/Extensions/ExpressionParser';
import { evaluate } from './Helpers';
describe('Expression Extension Transforms', () => {
describe('extend() transform', () => {
test('Basic transform with .isEmpty', () => {
expect(extendTransform('"".isEmpty()')!.code).toEqual('extend("", "isEmpty", [])');
});
test('Chained transform with .toSnakeCase.toSentenceCase', () => {
expect(extendTransform('"".toSnakeCase().toSentenceCase(2)')!.code).toEqual(
'extend(extend("", "toSnakeCase", []), "toSentenceCase", [2])',
);
});
test('Chained transform with native functions .toSnakeCase.trim.toSentenceCase', () => {
expect(extendTransform('"aaa ".toSnakeCase().trim().toSentenceCase(2)')!.code).toEqual(
'extend(extend("aaa ", "toSnakeCase", []).trim(), "toSentenceCase", [2])',
);
});
});
});
describe('tmpl Expression Parser', () => {
describe('Compatible splitting', () => {
test('Lone expression', () => {
expect(splitExpression('{{ "" }}')).toEqual([
{ type: 'text', text: '' },
{ type: 'code', text: ' "" ', hasClosingBrackets: true },
]);
});
test('Multiple expression', () => {
expect(splitExpression('{{ "test".toSnakeCase() }} you have ${{ (100).format() }}.')).toEqual(
[
{ type: 'text', text: '' },
{ type: 'code', text: ' "test".toSnakeCase() ', hasClosingBrackets: true },
{ type: 'text', text: ' you have $' },
{ type: 'code', text: ' (100).format() ', hasClosingBrackets: true },
{ type: 'text', text: '.' },
],
);
});
test('Unclosed expression', () => {
expect(splitExpression('{{ "test".toSnakeCase() }} you have ${{ (100).format()')).toEqual([
{ type: 'text', text: '' },
{ type: 'code', text: ' "test".toSnakeCase() ', hasClosingBrackets: true },
{ type: 'text', text: ' you have $' },
{ type: 'code', text: ' (100).format()', hasClosingBrackets: false },
]);
});
test('Escaped opening bracket', () => {
expect(splitExpression('test \\{{ no code }}')).toEqual([
{ type: 'text', text: 'test \\{{ no code }}' },
]);
});
test('Escaped closinging bracket', () => {
expect(splitExpression('test {{ code.test("\\}}") }}')).toEqual([
{ type: 'text', text: 'test ' },
{ type: 'code', text: ' code.test("}}") ', hasClosingBrackets: true },
]);
});
});
describe('Compatible joining', () => {
test('Lone expression', () => {
expect(joinExpression(splitExpression('{{ "" }}'))).toEqual('{{ "" }}');
});
test('Multiple expression', () => {
expect(
joinExpression(
splitExpression('{{ "test".toSnakeCase() }} you have ${{ (100).format() }}.'),
),
).toEqual('{{ "test".toSnakeCase() }} you have ${{ (100).format() }}.');
});
test('Unclosed expression', () => {
expect(
joinExpression(splitExpression('{{ "test".toSnakeCase() }} you have ${{ (100).format()')),
).toEqual('{{ "test".toSnakeCase() }} you have ${{ (100).format()');
});
test('Escaped opening bracket', () => {
expect(joinExpression(splitExpression('test \\{{ no code }}'))).toEqual(
'test \\{{ no code }}',
);
});
test('Escaped closing bracket', () => {
expect(joinExpression(splitExpression('test {{ code.test("\\}}") }}'))).toEqual(
'test {{ code.test("\\}}") }}',
);
});
});
describe('Edge cases', () => {
test("Nested member access with name of function inside a function doesn't result in function call", () => {
expect(evaluate('={{ Math.floor([1, 2, 3, 4].length + 10) }}')).toEqual(14);
expect(extendTransform('Math.floor([1, 2, 3, 4].length + 10)')?.code).toBe(
'extend(Math, "floor", [[1, 2, 3, 4].length + 10])',
);
});
});
describe('Test newer ES syntax', () => {
test('Optional chaining transforms', () => {
expect(extendTransform('$json.something?.test.funcCall()')?.code).toBe(
'window.chainCancelToken1 = ((window.chainValue1 = $json.something) ?? undefined) === undefined, window.chainCancelToken1 === true ? undefined : window.chainValue1.test.funcCall();',
);
expect(extendTransform('$json.something?.test.funcCall()?.somethingElse')?.code).toBe(
'window.chainCancelToken1 = ((window.chainValue1 = $json.something) ?? undefined) === undefined, window.chainCancelToken1 === true ? undefined : window.chainCancelToken1 = ((window.chainValue1 = window.chainValue1.test.funcCall()) ?? undefined) === undefined, window.chainCancelToken1 === true ? undefined : window.chainValue1.somethingElse;',
);
expect(extendTransform('$json.something?.test.funcCall().somethingElse')?.code).toBe(
'window.chainCancelToken1 = ((window.chainValue1 = $json.something) ?? undefined) === undefined, window.chainCancelToken1 === true ? undefined : window.chainValue1.test.funcCall().somethingElse;',
);
expect(
extendTransform('$json.something?.test.funcCall()?.somethingElse.otherCall()')?.code,
).toBe(
'window.chainCancelToken1 = ((window.chainValue1 = $json.something) ?? undefined) === undefined, window.chainCancelToken1 === true ? undefined : window.chainCancelToken1 = ((window.chainValue1 = window.chainValue1.test.funcCall()) ?? undefined) === undefined, window.chainCancelToken1 === true ? undefined : window.chainValue1.somethingElse.otherCall();',
);
expect(evaluate('={{ [1, 2, 3, 4]?.sum() }}')).toBe(10);
});
test('Optional chaining transforms on calls', () => {
expect(extendTransform('Math.min?.(1)')?.code).toBe(
'window.chainCancelToken1 = ((window.chainValue1 = extendOptional(Math, "min")) ?? undefined) === undefined, window.chainCancelToken1 === true ? undefined : window.chainValue1(1);',
);
expect(extendTransform('Math?.min?.(1)')?.code).toBe(
'window.chainCancelToken1 = ((window.chainValue1 = Math) ?? undefined) === undefined, window.chainCancelToken1 === true ? undefined : window.chainCancelToken1 = ((window.chainValue1 = extendOptional(window.chainValue1, "min")) ?? undefined) === undefined, window.chainCancelToken1 === true ? undefined : window.chainValue1(1);',
);
expect(extendTransform('$json.test.test2?.sum()')?.code).toBe(
'window.chainCancelToken1 = ((window.chainValue1 = $json.test.test2) ?? undefined) === undefined, window.chainCancelToken1 === true ? undefined : extend(window.chainValue1, "sum", []);',
);
expect(extendTransform('$json.test.test2?.sum?.()')?.code).toBe(
'window.chainCancelToken1 = ((window.chainValue1 = $json.test.test2) ?? undefined) === undefined, window.chainCancelToken1 === true ? undefined : window.chainCancelToken1 = ((window.chainValue1 = extendOptional(window.chainValue1, "sum")) ?? undefined) === undefined, window.chainCancelToken1 === true ? undefined : window.chainValue1();',
);
expect(evaluate('={{ [1, 2, 3, 4].sum?.() }}')).toBe(10);
});
test('Multiple optional chains in an expression', () => {
expect(extendTransform('$json.test?.test2($json.test?.test2)')?.code)
.toBe(`window.chainCancelToken2 = ((window.chainValue2 = $json.test) ?? undefined) === undefined, window.chainCancelToken2 === true ? undefined : window.chainValue2.test2(
(window.chainCancelToken1 = ((window.chainValue1 = $json.test) ?? undefined) === undefined, window.chainCancelToken1 === true ? undefined : window.chainValue1.test2)
);`);
expect(extendTransform('$json.test?.test2($json.test.sum?.())')?.code)
.toBe(`window.chainCancelToken2 = ((window.chainValue2 = $json.test) ?? undefined) === undefined, window.chainCancelToken2 === true ? undefined : window.chainValue2.test2(
(window.chainCancelToken1 = ((window.chainValue1 = extendOptional($json.test, "sum")) ?? undefined) === undefined, window.chainCancelToken1 === true ? undefined : window.chainValue1())
);`);
});
expect(evaluate('={{ [1, 2, 3, 4]?.sum((undefined)?.test) }}')).toBe(10);
});
describe('Non dot extensions', () => {
test('min', () => {
expect(evaluate('={{ min(1, 2, 3, 4, 5, 6) }}')).toEqual(1);
expect(evaluate('={{ min(1, NaN, 3, 4, 5, 6) }}')).toBeNaN();
});
test('max', () => {
expect(evaluate('={{ max(1, 2, 3, 4, 5, 6) }}')).toEqual(6);
expect(evaluate('={{ max(1, NaN, 3, 4, 5, 6) }}')).toBeNaN();
});
test('average', () => {
expect(evaluate('={{ average(1, 2, 3, 4, 5, 6) }}')).toEqual(3.5);
expect(evaluate('={{ average(1, NaN, 3, 4, 5, 6) }}')).toBeNaN();
});
test('numberList', () => {
expect(evaluate('={{ numberList(1, 10) }}')).toEqual([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]);
expect(evaluate('={{ numberList(1, -10) }}')).toEqual([
1, 0, -1, -2, -3, -4, -5, -6, -7, -8, -9, -10,
]);
});
test('zip', () => {
expect(evaluate('={{ zip(["test1", "test2", "test3"], [1, 2, 3]) }}')).toEqual({
test1: 1,
test2: 2,
test3: 3,
});
});
test('$if', () => {
expect(evaluate('={{ $if("a"==="a", 1, 2) }}')).toEqual(1);
expect(evaluate('={{ $if("a"==="b", 1, 2) }}')).toEqual(2);
expect(evaluate('={{ $if("a"==="a", 1) }}')).toEqual(1);
expect(evaluate('={{ $if("a"==="b", 1) }}')).toEqual(false);
// This will likely break when sandboxing is implemented but it works for now.
// If you're implementing sandboxing maybe provide a way to add functions to
// sandbox we can check instead?
const mockCallback = jest.fn(() => false);
evaluate('={{ $if("a"==="a", true, $data.cb()) }}', [{ cb: mockCallback }]);
expect(mockCallback.mock.calls.length).toEqual(0);
evaluate('={{ $if("a"==="b", true, $data.cb()) }}', [{ cb: mockCallback }]);
expect(mockCallback.mock.calls.length).toEqual(1);
});
test('$not', () => {
expect(evaluate('={{ $not(1) }}')).toEqual(false);
expect(evaluate('={{ $not(0) }}')).toEqual(true);
expect(evaluate('={{ $not(true) }}')).toEqual(false);
expect(evaluate('={{ $not(false) }}')).toEqual(true);
expect(evaluate('={{ $not(undefined) }}')).toEqual(true);
expect(evaluate('={{ $not(null) }}')).toEqual(true);
expect(evaluate('={{ $not("") }}')).toEqual(true);
expect(evaluate('={{ $not("a") }}')).toEqual(false);
});
});
});