Add tests for cycles
parent
04c2be0550
commit
edc8f4eb6a
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@ -6,6 +6,8 @@ declare module 'wu' {
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declare export default class Wu<T> {
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static <T>(Iterable<T>): Wu<T>;
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static values<T: Object>(T): Wu<$Values<T>>;
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tap(T => mixed): Wu<T>;
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map<U>(T => U): Wu<U>;
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@ -24,6 +26,8 @@ declare module 'wu' {
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some(): boolean;
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some(T => boolean): boolean;
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forEach(T => mixed): void;
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toArray(): T[];
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}
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}
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31
tests/run.js
31
tests/run.js
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@ -2,11 +2,12 @@ import * as assert from 'assert';
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import * as fs from 'fs';
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import * as path from 'path';
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import * as yaml from 'yaml-js';
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import wu from 'wu';
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import collect from '../src';
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function run(title) {
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let actual, expected;
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let actual, expected: any;
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// Run the collector only if the suite will be checked.
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before(() => {
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@ -14,9 +15,33 @@ function run(title) {
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expected = yaml.load(fs.readFileSync(title + '.yaml', 'utf8'));
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});
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it('should provide expected types', () => {
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assert.deepEqual((actual: any).types, (expected: any).types);
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it('should not include cycles', () => {
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assert.deepEqual(detectCycles(actual.types), new Set);
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});
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it('should provide expected types', () => {
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assert.deepEqual(actual.types, expected.types);
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});
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}
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function detectCycles(obj: mixed, cycles: Set<mixed> = new Set, objs: Set<mixed> = new Set) {
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if (obj == null || typeof obj !== 'object') {
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return cycles;
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}
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if (objs.has(obj)) {
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cycles.add(obj);
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}
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objs.add(obj);
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if (obj instanceof Array) {
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wu(obj).forEach(item => detectCycles(item, cycles, objs));
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} else {
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wu.values(obj).forEach(item => detectCycles(item, cycles, objs));
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}
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return cycles;
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}
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function main() {
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