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Add property based tests to assess load reverses dump
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dubzzz committed Mar 9, 2018
1 parent c62fd62 commit 6dc480a
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1 change: 1 addition & 0 deletions package.json
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"browserify": "^14.3.0",
"codemirror": "^5.13.4",
"eslint": "^4.1.1",
"fast-check": "0.0.13",
"istanbul": "^0.4.5",
"mocha": "^3.3.0",
"uglify-js": "^3.0.1"
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47 changes: 47 additions & 0 deletions test/25-dumper-fuzzy.js
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'use strict';

var assert = require('assert');
var fc = require('fast-check');
var yaml = require('../');

// Generate valid YAML instances for yaml.safeDump
var key = fc.string16bits();
var values = [
key, fc.boolean(), fc.integer(), fc.double(),
fc.constantFrom(null, Number.NEGATIVE_INFINITY, Number.POSITIVE_INFINITY)
];
var yamlArbitrary = fc.object({ key: key, values: values });

// Generate valid options for yaml.safeDump configuration
var dumpOptionsArbitrary = fc.record({
skipInvalid: fc.boolean(),
sortKeys: fc.boolean(),
noRefs: fc.boolean(),
noCompatMode: fc.boolean(),
condenseFlow: fc.boolean(),
indent: fc.integer(1, 80),
flowLevel: fc.integer(-1, 10),
styles: fc.record({
'!!null': fc.constantFrom('lowercase', 'canonical', 'uppercase', 'camelcase'),
'!!int': fc.constantFrom('decimal', 'binary', 'octal', 'hexadecimal'),
'!!bool': fc.constantFrom('lowercase', 'uppercase', 'camelcase'),
'!!float': fc.constantFrom('lowercase', 'uppercase', 'camelcase')
}, { with_deleted_keys: true })
}, { with_deleted_keys: true })
.map(function (instance) {
if (instance.condenseFlow === true && instance.flowLevel !== undefined) { instance.flowLevel = -1; }
return instance;
});

suite('Properties', function () {
test('Load from dumped should be the original object', function () {
fc.assert(fc.property(
yamlArbitrary,
dumpOptionsArbitrary,
function (obj, dumpOptions) {
var yamlContent = yaml.safeDump(obj, dumpOptions);
assert.ok(typeof yamlContent === 'string');
assert.deepStrictEqual(yaml.safeLoad(yamlContent), obj);
}));
});
});

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