Merge pull request #1225 from edwinsamodra/create-bigInt

rebuild bigInt generator pull request

2 files changed, 37 insertions, 0 deletions

diff --git a/lib/datatype.js b/lib/datatype.js
index 02ea3759..63ebd65c 100644
--- a/lib/datatype.js
+++ b/lib/datatype.js
@@ -220,6 +220,20 @@ function Datatype (faker, seed) {
 

   };

 

+  /**

+   * returns a Big Integer with values generated by faker.datatype.bigInt

+   * @method faker.datatype.bigInt

+   * @param { number } value 

+   */

+

+  this.bigInt = function bigInt(value) {

+    if(value === undefined){

+      value = Math.floor(Math.random() * 99999999999) + 10000000000;

+    }

+

+    return BigInt(value);

+  };

+

   return this;

 }

 

diff --git a/test/datatype.unit.js b/test/datatype.unit.js
index b206ca47..84a24fd5 100644
--- a/test/datatype.unit.js
+++ b/test/datatype.unit.js
@@ -286,4 +286,27 @@ describe("datatype.js", function () {
     });

   });

 

+  describe('bigInt', function () {

+    it('should generate a bigInt value', function () {

+      var generateBigInt = faker.datatype.bigInt();

+      assert.strictEqual(typeof generateBigInt, 'bigint');

+    }); 

+

+    it('Generate and compare two numbers of data type BigInt, with seeding', function () {

+      faker.seed(123);

+      var generateBigInt1 = faker.datatype.bigInt();

+      faker.seed(123);

+      var generateBigInt2 = faker.datatype.bigInt();

+      assert.strictEqual(generateBigInt1, generateBigInt2);

+    });

+

+    it('summing with the Number datatype should be an error', function(done) {

+      try {

+        faker.datatype.bigInt() + 10

+      } catch (error) {

+        done();

+      }

+    });

+  });

+

 });
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