diff --git a/__tests__/properties.js b/__tests__/properties.js
new file mode 100644
index 00000000..35e21295
--- /dev/null
+++ b/__tests__/properties.js
@@ -0,0 +1,35 @@
+import YAML from '../src/index'
+import * as fc from 'fast-check'
+
+describe('properties', () => {
+  test('parse stringified object', () => {
+    const key = fc.fullUnicodeString()
+    const values = [
+      key,
+      fc.lorem(1000, false), // words
+      fc.lorem(100, true), // sentences
+      fc.boolean(),
+      fc.integer(),
+      fc.double(),
+      fc.constantFrom(null, Number.NEGATIVE_INFINITY, Number.POSITIVE_INFINITY)
+    ]
+    const yamlArbitrary = fc.anything({ key: key, values: values })
+    const optionsArbitrary = fc.record(
+      {
+        keepBlobsInJSON: fc.boolean(),
+        keepCstNodes: fc.boolean(),
+        keepNodeTypes: fc.boolean(),
+        mapAsMap: fc.constant(false),
+        merge: fc.boolean(),
+        schema: fc.constantFrom('core', 'yaml-1.1') // ignore 'failsafe', 'json'
+      },
+      { withDeletedKeys: true }
+    )
+
+    fc.assert(
+      fc.property(yamlArbitrary, optionsArbitrary, (obj, opts) => {
+        expect(YAML.parse(YAML.stringify(obj, opts), opts)).toStrictEqual(obj)
+      })
+    )
+  })
+})
diff --git a/package-lock.json b/package-lock.json
index 63130803..3cb1133d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2199,6 +2199,16 @@
       "integrity": "sha1-lpGEQOMEGnpBT4xS48V06zw+HgU=",
       "dev": true
     },
+    "fast-check": {
+      "version": "1.8.2",
+      "resolved": "https://registry.npmjs.org/fast-check/-/fast-check-1.8.2.tgz",
+      "integrity": "sha512-urQagho0BtUvjhlKnf1xgV453j4qjaWUojD8DCAnB/BwjBXg9kfZaED0LnBqTdKsWb4fGOvQ0thzoldgZNBWXA==",
+      "dev": true,
+      "requires": {
+        "lorem-ipsum": "~1.0.6",
+        "pure-rand": "^1.5.0"
+      }
+    },
     "fast-deep-equal": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-1.1.0.tgz",
@@ -4723,6 +4733,23 @@
         "js-tokens": "^3.0.0 || ^4.0.0"
       }
     },
+    "lorem-ipsum": {
+      "version": "1.0.6",
+      "resolved": "https://registry.npmjs.org/lorem-ipsum/-/lorem-ipsum-1.0.6.tgz",
+      "integrity": "sha512-Rx4XH8X4KSDCKAVvWGYlhAfNqdUP5ZdT4rRyf0jjrvWgtViZimDIlopWNfn/y3lGM5K4uuiAoY28TaD+7YKFrQ==",
+      "dev": true,
+      "requires": {
+        "minimist": "~1.2.0"
+      },
+      "dependencies": {
+        "minimist": {
+          "version": "1.2.0",
+          "resolved": "http://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
+          "integrity": "sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=",
+          "dev": true
+        }
+      }
+    },
     "lru-cache": {
       "version": "4.1.3",
       "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-4.1.3.tgz",
@@ -5389,6 +5416,12 @@
       "integrity": "sha512-XRsRjdf+j5ml+y/6GKHPZbrF/8p2Yga0JPtdqTIY2Xe5ohJPD9saDJJLPvp9+NSBprVvevdXZybnj2cv8OEd0A==",
       "dev": true
     },
+    "pure-rand": {
+      "version": "1.6.0",
+      "resolved": "https://registry.npmjs.org/pure-rand/-/pure-rand-1.6.0.tgz",
+      "integrity": "sha512-L6ER1SlIhjuuoWf8N5J3ipzkFeBVduRgeOk87XuPdCp0xSPm4WYz9CteM7fCFaiPYVmVMkoI/nt6dRkVZ9SDNA==",
+      "dev": true
+    },
     "qs": {
       "version": "6.5.2",
       "resolved": "https://registry.npmjs.org/qs/-/qs-6.5.2.tgz",
diff --git a/package.json b/package.json
index baa93c37..8ce278af 100644
--- a/package.json
+++ b/package.json
@@ -74,6 +74,7 @@
     "babel-jest": "^23.6.0",
     "babel-plugin-add-module-exports": "^1.0.0",
     "babel-plugin-trace": "^1.1.0",
+    "fast-check": "^1.8.2",
     "jest": "^23.6.0",
     "prettier": "^1.15.3"
   },