diff --git a/.travis.yml b/.travis.yml
index 2ba9b18..349ad28 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -12,6 +12,8 @@ matrix:
 
 before-install:
   - composer self-update
+  - travis_retry composer self-update
+  - travis_retry composer install --no-interaction --prefer-source --dev
 
 install:
   - composer install --prefer-source --no-interaction --dev
diff --git a/arquivo.json b/arquivo.json
new file mode 100644
index 0000000..8e41231
--- /dev/null
+++ b/arquivo.json
@@ -0,0 +1 @@
+{"index":"teste","0":"value","index2":5,"index3":true,"index4":6.5,"index5":"data","index1":"valueToBeTested","1569092484":5}
\ No newline at end of file
diff --git a/composer.lock b/composer.lock
index c82422e..2c638a0 100644
--- a/composer.lock
+++ b/composer.lock
@@ -65,20 +65,20 @@
         },
         {
             "name": "myclabs/deep-copy",
-            "version": "1.9.0",
+            "version": "1.9.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/myclabs/DeepCopy.git",
-                "reference": "78af75148f9fdd34ea727c8b529a9b4a8f7b740c"
+                "reference": "007c053ae6f31bba39dfa19a7726f56e9763bbea"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/myclabs/DeepCopy/zipball/78af75148f9fdd34ea727c8b529a9b4a8f7b740c",
-                "reference": "78af75148f9fdd34ea727c8b529a9b4a8f7b740c",
+                "url": "https://api.github.com/repos/myclabs/DeepCopy/zipball/007c053ae6f31bba39dfa19a7726f56e9763bbea",
+                "reference": "007c053ae6f31bba39dfa19a7726f56e9763bbea",
                 "shasum": ""
             },
             "require": {
-                "php": "^7.2"
+                "php": "^7.1"
             },
             "replace": {
                 "myclabs/deep-copy": "self.version"
@@ -86,8 +86,6 @@
             "require-dev": {
                 "doctrine/collections": "^1.0",
                 "doctrine/common": "^2.6",
-                "phpstan/phpstan": "^0.9.2",
-                "phpstan/phpstan-phpunit": "^0.9.4",
                 "phpunit/phpunit": "^7.1"
             },
             "type": "library",
@@ -111,7 +109,7 @@
                 "object",
                 "object graph"
             ],
-            "time": "2018-10-30T00:14:44+00:00"
+            "time": "2019-08-09T12:45:53+00:00"
         },
         {
             "name": "phar-io/manifest",
@@ -217,35 +215,33 @@
         },
         {
             "name": "phpdocumentor/reflection-common",
-            "version": "1.0.1",
+            "version": "2.0.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpDocumentor/ReflectionCommon.git",
-                "reference": "21bdeb5f65d7ebf9f43b1b25d404f87deab5bfb6"
+                "reference": "63a995caa1ca9e5590304cd845c15ad6d482a62a"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpDocumentor/ReflectionCommon/zipball/21bdeb5f65d7ebf9f43b1b25d404f87deab5bfb6",
-                "reference": "21bdeb5f65d7ebf9f43b1b25d404f87deab5bfb6",
+                "url": "https://api.github.com/repos/phpDocumentor/ReflectionCommon/zipball/63a995caa1ca9e5590304cd845c15ad6d482a62a",
+                "reference": "63a995caa1ca9e5590304cd845c15ad6d482a62a",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.5"
+                "php": ">=7.1"
             },
             "require-dev": {
-                "phpunit/phpunit": "^4.6"
+                "phpunit/phpunit": "~6"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.0.x-dev"
+                    "dev-master": "2.x-dev"
                 }
             },
             "autoload": {
                 "psr-4": {
-                    "phpDocumentor\\Reflection\\": [
-                        "src"
-                    ]
+                    "phpDocumentor\\Reflection\\": "src/"
                 }
             },
             "notification-url": "https://packagist.org/downloads/",
@@ -267,30 +263,30 @@
                 "reflection",
                 "static analysis"
             ],
-            "time": "2017-09-11T18:02:19+00:00"
+            "time": "2018-08-07T13:53:10+00:00"
         },
         {
             "name": "phpdocumentor/reflection-docblock",
-            "version": "4.3.0",
+            "version": "4.3.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpDocumentor/ReflectionDocBlock.git",
-                "reference": "94fd0001232e47129dd3504189fa1c7225010d08"
+                "reference": "b83ff7cfcfee7827e1e78b637a5904fe6a96698e"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpDocumentor/ReflectionDocBlock/zipball/94fd0001232e47129dd3504189fa1c7225010d08",
-                "reference": "94fd0001232e47129dd3504189fa1c7225010d08",
+                "url": "https://api.github.com/repos/phpDocumentor/ReflectionDocBlock/zipball/b83ff7cfcfee7827e1e78b637a5904fe6a96698e",
+                "reference": "b83ff7cfcfee7827e1e78b637a5904fe6a96698e",
                 "shasum": ""
             },
             "require": {
                 "php": "^7.0",
-                "phpdocumentor/reflection-common": "^1.0.0",
-                "phpdocumentor/type-resolver": "^0.4.0",
+                "phpdocumentor/reflection-common": "^1.0.0 || ^2.0.0",
+                "phpdocumentor/type-resolver": "~0.4 || ^1.0.0",
                 "webmozart/assert": "^1.0"
             },
             "require-dev": {
-                "doctrine/instantiator": "~1.0.5",
+                "doctrine/instantiator": "^1.0.5",
                 "mockery/mockery": "^1.0",
                 "phpunit/phpunit": "^6.4"
             },
@@ -318,41 +314,40 @@
                 }
             ],
             "description": "With this component, a library can provide support for annotations via DocBlocks or otherwise retrieve information that is embedded in a DocBlock.",
-            "time": "2017-11-30T07:14:17+00:00"
+            "time": "2019-09-12T14:27:41+00:00"
         },
         {
             "name": "phpdocumentor/type-resolver",
-            "version": "0.4.0",
+            "version": "1.0.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpDocumentor/TypeResolver.git",
-                "reference": "9c977708995954784726e25d0cd1dddf4e65b0f7"
+                "reference": "2e32a6d48972b2c1976ed5d8967145b6cec4a4a9"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpDocumentor/TypeResolver/zipball/9c977708995954784726e25d0cd1dddf4e65b0f7",
-                "reference": "9c977708995954784726e25d0cd1dddf4e65b0f7",
+                "url": "https://api.github.com/repos/phpDocumentor/TypeResolver/zipball/2e32a6d48972b2c1976ed5d8967145b6cec4a4a9",
+                "reference": "2e32a6d48972b2c1976ed5d8967145b6cec4a4a9",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.5 || ^7.0",
-                "phpdocumentor/reflection-common": "^1.0"
+                "php": "^7.1",
+                "phpdocumentor/reflection-common": "^2.0"
             },
             "require-dev": {
-                "mockery/mockery": "^0.9.4",
-                "phpunit/phpunit": "^5.2||^4.8.24"
+                "ext-tokenizer": "^7.1",
+                "mockery/mockery": "~1",
+                "phpunit/phpunit": "^7.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.0.x-dev"
+                    "dev-master": "1.x-dev"
                 }
             },
             "autoload": {
                 "psr-4": {
-                    "phpDocumentor\\Reflection\\": [
-                        "src/"
-                    ]
+                    "phpDocumentor\\Reflection\\": "src"
                 }
             },
             "notification-url": "https://packagist.org/downloads/",
@@ -365,20 +360,21 @@
                     "email": "me@mikevanriel.com"
                 }
             ],
-            "time": "2017-07-14T14:27:02+00:00"
+            "description": "A PSR-5 based resolver of Class names, Types and Structural Element Names",
+            "time": "2019-08-22T18:11:29+00:00"
         },
         {
             "name": "phpspec/prophecy",
-            "version": "1.8.0",
+            "version": "1.8.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpspec/prophecy.git",
-                "reference": "4ba436b55987b4bf311cb7c6ba82aa528aac0a06"
+                "reference": "1927e75f4ed19131ec9bcc3b002e07fb1173ee76"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpspec/prophecy/zipball/4ba436b55987b4bf311cb7c6ba82aa528aac0a06",
-                "reference": "4ba436b55987b4bf311cb7c6ba82aa528aac0a06",
+                "url": "https://api.github.com/repos/phpspec/prophecy/zipball/1927e75f4ed19131ec9bcc3b002e07fb1173ee76",
+                "reference": "1927e75f4ed19131ec9bcc3b002e07fb1173ee76",
                 "shasum": ""
             },
             "require": {
@@ -399,8 +395,8 @@
                 }
             },
             "autoload": {
-                "psr-0": {
-                    "Prophecy\\": "src/"
+                "psr-4": {
+                    "Prophecy\\": "src/Prophecy"
                 }
             },
             "notification-url": "https://packagist.org/downloads/",
@@ -428,20 +424,20 @@
                 "spy",
                 "stub"
             ],
-            "time": "2018-08-05T17:53:17+00:00"
+            "time": "2019-06-13T12:50:23+00:00"
         },
         {
             "name": "phpunit/php-code-coverage",
-            "version": "7.0.3",
+            "version": "7.0.8",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/php-code-coverage.git",
-                "reference": "0317a769a81845c390e19684d9ba25d7f6aa4707"
+                "reference": "aa0d179a13284c7420fc281fc32750e6cc7c9e2f"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/php-code-coverage/zipball/0317a769a81845c390e19684d9ba25d7f6aa4707",
-                "reference": "0317a769a81845c390e19684d9ba25d7f6aa4707",
+                "url": "https://api.github.com/repos/sebastianbergmann/php-code-coverage/zipball/aa0d179a13284c7420fc281fc32750e6cc7c9e2f",
+                "reference": "aa0d179a13284c7420fc281fc32750e6cc7c9e2f",
                 "shasum": ""
             },
             "require": {
@@ -450,17 +446,17 @@
                 "php": "^7.2",
                 "phpunit/php-file-iterator": "^2.0.2",
                 "phpunit/php-text-template": "^1.2.1",
-                "phpunit/php-token-stream": "^3.0.1",
+                "phpunit/php-token-stream": "^3.1.1",
                 "sebastian/code-unit-reverse-lookup": "^1.0.1",
-                "sebastian/environment": "^4.1",
+                "sebastian/environment": "^4.2.2",
                 "sebastian/version": "^2.0.1",
-                "theseer/tokenizer": "^1.1"
+                "theseer/tokenizer": "^1.1.3"
             },
             "require-dev": {
-                "phpunit/phpunit": "^8.0"
+                "phpunit/phpunit": "^8.2.2"
             },
             "suggest": {
-                "ext-xdebug": "^2.6.1"
+                "ext-xdebug": "^2.7.2"
             },
             "type": "library",
             "extra": {
@@ -491,7 +487,7 @@
                 "testing",
                 "xunit"
             ],
-            "time": "2019-02-26T07:38:26+00:00"
+            "time": "2019-09-17T06:24:36+00:00"
         },
         {
             "name": "phpunit/php-file-iterator",
@@ -586,16 +582,16 @@
         },
         {
             "name": "phpunit/php-timer",
-            "version": "2.1.1",
+            "version": "2.1.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/php-timer.git",
-                "reference": "8b389aebe1b8b0578430bda0c7c95a829608e059"
+                "reference": "1038454804406b0b5f5f520358e78c1c2f71501e"
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             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/php-timer/zipball/8b389aebe1b8b0578430bda0c7c95a829608e059",
-                "reference": "8b389aebe1b8b0578430bda0c7c95a829608e059",
+                "url": "https://api.github.com/repos/sebastianbergmann/php-timer/zipball/1038454804406b0b5f5f520358e78c1c2f71501e",
+                "reference": "1038454804406b0b5f5f520358e78c1c2f71501e",
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             "require": {
@@ -631,20 +627,20 @@
             "keywords": [
                 "timer"
             ],
-            "time": "2019-02-20T10:12:59+00:00"
+            "time": "2019-06-07T04:22:29+00:00"
         },
         {
             "name": "phpunit/php-token-stream",
-            "version": "3.0.1",
+            "version": "3.1.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/php-token-stream.git",
-                "reference": "c99e3be9d3e85f60646f152f9002d46ed7770d18"
+                "reference": "995192df77f63a59e47f025390d2d1fdf8f425ff"
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             "dist": {
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-                "reference": "c99e3be9d3e85f60646f152f9002d46ed7770d18",
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@@ -657,7 +653,7 @@
             "type": "library",
             "extra": {
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-                    "dev-master": "3.0-dev"
+                    "dev-master": "3.1-dev"
                 }
             },
             "autoload": {
@@ -680,46 +676,47 @@
             "keywords": [
                 "tokenizer"
             ],
-            "time": "2018-10-30T05:52:18+00:00"
+            "time": "2019-09-17T06:23:10+00:00"
         },
         {
             "name": "phpunit/phpunit",
-            "version": "8.1.2",
+            "version": "8.3.5",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/phpunit.git",
-                "reference": "e7450b51b6f5d29edcd645ff72b355ab0633ca35"
+                "reference": "302faed7059fde575cf3403a78c730c5e3a62750"
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             "dist": {
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-                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/e7450b51b6f5d29edcd645ff72b355ab0633ca35",
-                "reference": "e7450b51b6f5d29edcd645ff72b355ab0633ca35",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/302faed7059fde575cf3403a78c730c5e3a62750",
+                "reference": "302faed7059fde575cf3403a78c730c5e3a62750",
                 "shasum": ""
             },
             "require": {
-                "doctrine/instantiator": "^1.1",
+                "doctrine/instantiator": "^1.2.0",
                 "ext-dom": "*",
                 "ext-json": "*",
                 "ext-libxml": "*",
                 "ext-mbstring": "*",
                 "ext-xml": "*",
                 "ext-xmlwriter": "*",
-                "myclabs/deep-copy": "^1.7",
-                "phar-io/manifest": "^1.0.2",
-                "phar-io/version": "^2.0",
+                "myclabs/deep-copy": "^1.9.1",
+                "phar-io/manifest": "^1.0.3",
+                "phar-io/version": "^2.0.1",
                 "php": "^7.2",
-                "phpspec/prophecy": "^1.7",
-                "phpunit/php-code-coverage": "^7.0",
-                "phpunit/php-file-iterator": "^2.0.1",
+                "phpspec/prophecy": "^1.8.1",
+                "phpunit/php-code-coverage": "^7.0.7",
+                "phpunit/php-file-iterator": "^2.0.2",
                 "phpunit/php-text-template": "^1.2.1",
-                "phpunit/php-timer": "^2.1",
-                "sebastian/comparator": "^3.0",
-                "sebastian/diff": "^3.0",
-                "sebastian/environment": "^4.1",
-                "sebastian/exporter": "^3.1",
-                "sebastian/global-state": "^3.0",
+                "phpunit/php-timer": "^2.1.2",
+                "sebastian/comparator": "^3.0.2",
+                "sebastian/diff": "^3.0.2",
+                "sebastian/environment": "^4.2.2",
+                "sebastian/exporter": "^3.1.1",
+                "sebastian/global-state": "^3.0.0",
                 "sebastian/object-enumerator": "^3.0.3",
-                "sebastian/resource-operations": "^2.0",
+                "sebastian/resource-operations": "^2.0.1",
+                "sebastian/type": "^1.1.3",
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@@ -728,7 +725,7 @@
             "suggest": {
                 "ext-soap": "*",
                 "ext-xdebug": "*",
-                "phpunit/php-invoker": "^2.0"
+                "phpunit/php-invoker": "^2.0.0"
             },
             "bin": [
                 "phpunit"
@@ -736,7 +733,7 @@
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             "extra": {
                 "branch-alias": {
-                    "dev-master": "8.1-dev"
+                    "dev-master": "8.3-dev"
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             },
             "autoload": {
@@ -762,7 +759,7 @@
                 "testing",
                 "xunit"
             ],
-            "time": "2019-04-08T16:03:02+00:00"
+            "time": "2019-09-14T09:12:03+00:00"
         },
         {
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@@ -931,16 +928,16 @@
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         {
             "name": "sebastian/environment",
-            "version": "4.1.0",
+            "version": "4.2.2",
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                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/environment.git",
-                "reference": "6fda8ce1974b62b14935adc02a9ed38252eca656"
+                "reference": "f2a2c8e1c97c11ace607a7a667d73d47c19fe404"
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             "dist": {
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-                "reference": "6fda8ce1974b62b14935adc02a9ed38252eca656",
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@@ -955,7 +952,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "4.1-dev"
+                    "dev-master": "4.2-dev"
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             },
             "autoload": {
@@ -980,20 +977,20 @@
                 "environment",
                 "hhvm"
             ],
-            "time": "2019-02-01T05:27:49+00:00"
+            "time": "2019-05-05T09:05:15+00:00"
         },
         {
             "name": "sebastian/exporter",
-            "version": "3.1.0",
+            "version": "3.1.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/exporter.git",
-                "reference": "234199f4528de6d12aaa58b612e98f7d36adb937"
+                "reference": "68609e1261d215ea5b21b7987539cbfbe156ec3e"
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+                "reference": "68609e1261d215ea5b21b7987539cbfbe156ec3e",
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             },
             "require": {
@@ -1020,6 +1017,10 @@
                 "BSD-3-Clause"
             ],
             "authors": [
+                {
+                    "name": "Sebastian Bergmann",
+                    "email": "sebastian@phpunit.de"
+                },
                 {
                     "name": "Jeff Welch",
                     "email": "whatthejeff@gmail.com"
@@ -1028,17 +1029,13 @@
                     "name": "Volker Dusch",
                     "email": "github@wallbash.com"
                 },
-                {
-                    "name": "Bernhard Schussek",
-                    "email": "bschussek@2bepublished.at"
-                },
-                {
-                    "name": "Sebastian Bergmann",
-                    "email": "sebastian@phpunit.de"
-                },
                 {
                     "name": "Adam Harvey",
                     "email": "aharvey@php.net"
+                },
+                {
+                    "name": "Bernhard Schussek",
+                    "email": "bschussek@gmail.com"
                 }
             ],
             "description": "Provides the functionality to export PHP variables for visualization",
@@ -1047,7 +1044,7 @@
                 "export",
                 "exporter"
             ],
-            "time": "2017-04-03T13:19:02+00:00"
+            "time": "2019-09-14T09:02:43+00:00"
         },
         {
             "name": "sebastian/global-state",
@@ -1290,6 +1287,52 @@
             "homepage": "https://www.github.com/sebastianbergmann/resource-operations",
             "time": "2018-10-04T04:07:39+00:00"
         },
+        {
+            "name": "sebastian/type",
+            "version": "1.1.3",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/sebastianbergmann/type.git",
+                "reference": "3aaaa15fa71d27650d62a948be022fe3b48541a3"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/sebastianbergmann/type/zipball/3aaaa15fa71d27650d62a948be022fe3b48541a3",
+                "reference": "3aaaa15fa71d27650d62a948be022fe3b48541a3",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^7.2"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^8.2"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.1-dev"
+                }
+            },
+            "autoload": {
+                "classmap": [
+                    "src/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Sebastian Bergmann",
+                    "email": "sebastian@phpunit.de",
+                    "role": "lead"
+                }
+            ],
+            "description": "Collection of value objects that represent the types of the PHP type system",
+            "homepage": "https://github.com/sebastianbergmann/type",
+            "time": "2019-07-02T08:10:15+00:00"
+        },
         {
             "name": "sebastian/version",
             "version": "2.0.1",
@@ -1335,16 +1378,16 @@
         },
         {
             "name": "squizlabs/php_codesniffer",
-            "version": "3.4.1",
+            "version": "3.4.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/squizlabs/PHP_CodeSniffer.git",
-                "reference": "5b4333b4010625d29580eb4a41f1e53251be6baa"
+                "reference": "b8a7362af1cc1aadb5bd36c3defc4dda2cf5f0a8"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/squizlabs/PHP_CodeSniffer/zipball/5b4333b4010625d29580eb4a41f1e53251be6baa",
-                "reference": "5b4333b4010625d29580eb4a41f1e53251be6baa",
+                "url": "https://api.github.com/repos/squizlabs/PHP_CodeSniffer/zipball/b8a7362af1cc1aadb5bd36c3defc4dda2cf5f0a8",
+                "reference": "b8a7362af1cc1aadb5bd36c3defc4dda2cf5f0a8",
                 "shasum": ""
             },
             "require": {
@@ -1382,20 +1425,20 @@
                 "phpcs",
                 "standards"
             ],
-            "time": "2019-03-19T03:22:27+00:00"
+            "time": "2019-04-10T23:49:02+00:00"
         },
         {
             "name": "symfony/polyfill-ctype",
-            "version": "v1.11.0",
+            "version": "v1.12.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/polyfill-ctype.git",
-                "reference": "82ebae02209c21113908c229e9883c419720738a"
+                "reference": "550ebaac289296ce228a706d0867afc34687e3f4"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/polyfill-ctype/zipball/82ebae02209c21113908c229e9883c419720738a",
-                "reference": "82ebae02209c21113908c229e9883c419720738a",
+                "url": "https://api.github.com/repos/symfony/polyfill-ctype/zipball/550ebaac289296ce228a706d0867afc34687e3f4",
+                "reference": "550ebaac289296ce228a706d0867afc34687e3f4",
                 "shasum": ""
             },
             "require": {
@@ -1407,7 +1450,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.11-dev"
+                    "dev-master": "1.12-dev"
                 }
             },
             "autoload": {
@@ -1424,12 +1467,12 @@
             ],
             "authors": [
                 {
-                    "name": "Symfony Community",
-                    "homepage": "https://symfony.com/contributors"
+                    "name": "Gert de Pagter",
+                    "email": "BackEndTea@gmail.com"
                 },
                 {
-                    "name": "Gert de Pagter",
-                    "email": "backendtea@gmail.com"
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
                 }
             ],
             "description": "Symfony polyfill for ctype functions",
@@ -1440,20 +1483,20 @@
                 "polyfill",
                 "portable"
             ],
-            "time": "2019-02-06T07:57:58+00:00"
+            "time": "2019-08-06T08:03:45+00:00"
         },
         {
             "name": "theseer/tokenizer",
-            "version": "1.1.2",
+            "version": "1.1.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/theseer/tokenizer.git",
-                "reference": "1c42705be2b6c1de5904f8afacef5895cab44bf8"
+                "reference": "11336f6f84e16a720dae9d8e6ed5019efa85a0f9"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/theseer/tokenizer/zipball/1c42705be2b6c1de5904f8afacef5895cab44bf8",
-                "reference": "1c42705be2b6c1de5904f8afacef5895cab44bf8",
+                "url": "https://api.github.com/repos/theseer/tokenizer/zipball/11336f6f84e16a720dae9d8e6ed5019efa85a0f9",
+                "reference": "11336f6f84e16a720dae9d8e6ed5019efa85a0f9",
                 "shasum": ""
             },
             "require": {
@@ -1480,20 +1523,20 @@
                 }
             ],
             "description": "A small library for converting tokenized PHP source code into XML and potentially other formats",
-            "time": "2019-04-04T09:56:43+00:00"
+            "time": "2019-06-13T22:48:21+00:00"
         },
         {
             "name": "webmozart/assert",
-            "version": "1.4.0",
+            "version": "1.5.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/webmozart/assert.git",
-                "reference": "83e253c8e0be5b0257b881e1827274667c5c17a9"
+                "reference": "88e6d84706d09a236046d686bbea96f07b3a34f4"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/webmozart/assert/zipball/83e253c8e0be5b0257b881e1827274667c5c17a9",
-                "reference": "83e253c8e0be5b0257b881e1827274667c5c17a9",
+                "url": "https://api.github.com/repos/webmozart/assert/zipball/88e6d84706d09a236046d686bbea96f07b3a34f4",
+                "reference": "88e6d84706d09a236046d686bbea96f07b3a34f4",
                 "shasum": ""
             },
             "require": {
@@ -1501,8 +1544,7 @@
                 "symfony/polyfill-ctype": "^1.8"
             },
             "require-dev": {
-                "phpunit/phpunit": "^4.6",
-                "sebastian/version": "^1.0.1"
+                "phpunit/phpunit": "^4.8.36 || ^7.5.13"
             },
             "type": "library",
             "extra": {
@@ -1531,7 +1573,7 @@
                 "check",
                 "validate"
             ],
-            "time": "2018-12-25T11:19:39+00:00"
+            "time": "2019-08-24T08:43:50+00:00"
         }
     ],
     "aliases": [],
diff --git a/src/FileCollection.php b/src/FileCollection.php
new file mode 100644
index 0000000..1fa615e
--- /dev/null
+++ b/src/FileCollection.php
@@ -0,0 +1,92 @@
+<?php
+
+namespace Live\Collection;
+
+/**
+ * Memory collection
+ *
+ * @package Live\Collection\
+ */
+class FileCollection implements CollectionInterface
+{
+
+     /**
+     * Collection data
+     *
+     * @var array
+     */
+    protected $data;
+    protected $arquivoTexto;
+    protected $filename;
+    
+    /**
+     * Constructor
+     */
+    public function __construct(string $filename)
+    {
+ 
+        $this->filename = $filename;
+        $this->data =[];
+        $fp = fopen($this->filename, 'r+');
+        //Pa
+        
+        if (filesize($this->filename) > 0) {
+            $stringArray = fread($fp, filesize($this->filename));
+            //Passo 3 - corrigir
+            $array = json_decode($stringArray, true);
+            //Passo 4
+
+            $this->data = $array;
+        }
+        fclose($fp);
+    }
+
+
+    /**
+     * {@inheritDoc}
+     */
+    public function get(string $index, $defaultValue = null)
+    {
+        if (!$this->has($index)) {
+            return $defaultValue;
+        }
+
+        return $this->data[$index];
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function set(string $index, $value)
+    {
+        $this->data[$index] = $value;
+        $fp = fopen($this->filename, 'w');
+        $json1 = json_encode($this->data);
+        fwrite($fp, $json1);
+        fclose($fp);
+        return $this->data;
+    }
+    /**
+     * {@inheritDoc}
+     */
+    public function has(string $index): bool
+    {
+        return array_key_exists($index, $this->data);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function count(): int
+    {
+        return count($this->data);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function clean()
+    {
+        $this->data = [];
+    }
+}
diff --git a/src/MemoryCollection.php b/src/MemoryCollection.php
index b71984a..8994250 100644
--- a/src/MemoryCollection.php
+++ b/src/MemoryCollection.php
@@ -5,7 +5,7 @@
 /**
  * Memory collection
  *
- * @package Live\Collection
+ * @package Live\Collection\
  */
 class MemoryCollection implements CollectionInterface
 {
@@ -57,7 +57,7 @@ public function has(string $index)
      */
     public function count(): int
     {
-        return count($this->data) + 1;
+        return count($this->data);
     }
 
     /**
diff --git a/tests/src/FileCollectionTest.php b/tests/src/FileCollectionTest.php
new file mode 100644
index 0000000..97b43e9
--- /dev/null
+++ b/tests/src/FileCollectionTest.php
@@ -0,0 +1,101 @@
+<?php
+
+namespace Live\Collection;
+
+use PHPUnit\Framework\TestCase;
+
+class FileCollectionTest extends TestCase
+{
+    /**
+     * @test
+     * @doesNotPerformAssertions
+     */
+    public function objectCanBeConstructed()
+    {
+        $collection = new FileCollection('arquivo.json');
+    }
+    
+
+    /**
+     * @test
+     * @depends objectCanBeConstructed
+     * @doesNotPerformAssertions
+     */
+    public function dataCanBeAdded()
+    {
+         $collection = new FileCollection('arquivo.json');
+         $collection->set(0, 'value');
+         $collection->set('index2', 5);
+         $collection->set('index3', true);
+         $collection->set('index4', 6.5);
+         $collection->set('index5', 'data');
+    }
+     /**
+     * @test
+     * @depends dataCanBeAdded
+     */
+    public function dataCanBeRetrieved()
+    {
+        $collection = new FileCollection('arquivo.json');
+        $value = 'valueToBeTested';
+        $collection->set('index1', $value);
+
+        $this->assertEquals($value, $collection->get('index1'));
+    }
+
+    /**
+     * @test
+     * @depends objectCanBeConstructed
+     */
+    public function inexistentIndexShouldReturnDefaultValue()
+    {
+        $collection = new FileCollection('arquivo.json');
+
+        $this->assertNull($collection->get('index8'));
+        $this->assertEquals('123123', $collection->get('index8', '123123'));
+    }
+
+    /**
+     * @test
+     * @depends dataCanBeAdded
+     */
+    public function addedItemShouldExistInCollection()
+    {
+        $collection = new FileCollection('arquivo.json');
+        $collection->set('index', 'value');
+
+        $this->assertTrue($collection->has('index'));
+    }
+
+    /**
+     * @test
+     * @depends dataCanBeAdded
+     * @depends addedItemShouldExistInCollection
+     */
+    public function collectionWithItemsShouldReturnValidCount()
+    {
+        $collection = new FileCollection('arquivo.json');
+        
+        $count = $collection->count();
+        $indice = time();
+        $this->assertFalse($collection->has($indice));
+        $collection->set($indice, 5);
+        $count2 =$collection->count();
+                
+        $this->assertEquals($count+1, $count2);
+    }
+
+    /**
+     * @test
+     * @depends collectionWithItemsShouldReturnValidCount
+     */
+    public function collectionCanBeCleaned()
+    {
+        $collection = new FileCollection('arquivo.json');
+        $collection->set('index', 'teste');
+        $this->assertEquals('teste', $collection->get('index'));
+        $this->assertGreaterThan(0, $collection->count());
+        $collection->clean();
+        $this->assertEquals(0, $collection->count());
+    }
+}
diff --git a/tests/src/MemoryCollectionTest.php b/tests/src/MemoryCollectionTest.php
index 7f8f1c9..959b1ba 100644
--- a/tests/src/MemoryCollectionTest.php
+++ b/tests/src/MemoryCollectionTest.php
@@ -62,6 +62,8 @@ public function inexistentIndexShouldReturnDefaultValue()
     public function newCollectionShouldNotContainItems()
     {
         $collection = new MemoryCollection();
+
+
         $this->assertEquals(0, $collection->count());
     }
 
@@ -85,10 +87,11 @@ public function collectionWithItemsShouldReturnValidCount()
      */
     public function collectionCanBeCleaned()
     {
-        $collection = new MemoryCollection();
-        $collection->set('index', 'value');
-        $this->assertEquals(1, $collection->count());
-
+        $collection = new FileCollection('arquivo.json');
+        $collection->set('index', 'teste');
+        $this->assertEquals('teste', $collection->get('index'));
+        $this->assertGreaterThan(0, $collection->count());
+        
         $collection->clean();
         $this->assertEquals(0, $collection->count());
     }