Update phpunit to 6.0

composer.json

@@ -3,7 +3,7 @@
     "type": "library",
     "description": "PHP-ML - Machine Learning library for PHP",
     "license": "MIT",
-    "keywords": ["machine learning","pattern recognition","neural network","computational learning theory","artificial intelligence"],
+    "keywords": ["machine learning","pattern recognition","neural network","computational learning theory","artificial intelligence","data science","feature extraction"],
     "homepage": "https://github.com/php-ai/php-ml",
     "authors": [
         {
@@ -20,7 +20,7 @@
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composer.lock

@@ -4,8 +4,7 @@
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@@ -60,20 +59,20 @@
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+            "time": "2015-06-14T21:17:01+00:00"
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@@ -102,7 +101,7 @@
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-            "time": "2016-09-16 13:37:59"
+            "time": "2017-01-26T22:05:40+00:00"
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@@ -156,20 +155,20 @@
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-            "time": "2015-12-27 11:43:31"
+            "time": "2015-12-27T11:43:31+00:00"
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@@ -201,20 +200,20 @@
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             "description": "With this component, a library can provide support for annotations via DocBlocks or otherwise retrieve information that is embedded in a DocBlock.",
-            "time": "2016-06-10 09:48:41"
+            "time": "2016-09-30T07:12:33+00:00"
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@@ -248,20 +247,20 @@
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-            "time": "2016-06-10 07:14:17"
+            "time": "2016-11-25T06:54:22+00:00"
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@@ -269,10 +268,11 @@
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@@ -310,44 +310,43 @@
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-            "time": "2016-06-07 08:13:47"
+            "time": "2016-11-21T14:58:47+00:00"
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@@ -373,20 +372,20 @@
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@@ -420,7 +419,7 @@
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@@ -461,7 +460,7 @@
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@@ -505,20 +504,20 @@
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+            "time": "2016-05-12T18:03:57+00:00"
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@@ -554,20 +553,20 @@
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@@ -637,33 +635,33 @@
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@@ -696,7 +694,7 @@
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@@ -741,26 +739,26 @@
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@@ -805,7 +803,7 @@
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@@ -857,32 +855,32 @@
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@@ -907,25 +905,25 @@
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                 "url": "https://github.com/sebastianbergmann/exporter.git",
-                "reference": "42c4c2eec485ee3e159ec9884f95b431287edde4"
+                "reference": "ce474bdd1a34744d7ac5d6aad3a46d48d9bac4c4"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/exporter/zipball/42c4c2eec485ee3e159ec9884f95b431287edde4",
+                "url": "https://api.github.com/repos/sebastianbergmann/exporter/zipball/ce474bdd1a34744d7ac5d6aad3a46d48d9bac4c4",
-                "reference": "42c4c2eec485ee3e159ec9884f95b431287edde4",
+                "reference": "ce474bdd1a34744d7ac5d6aad3a46d48d9bac4c4",
                 "shasum": ""
             },
             "require": {
                 "php": ">=5.3.3",
-                "sebastian/recursion-context": "~1.0"
+                "sebastian/recursion-context": "~2.0"
             },
             "require-dev": {
                 "ext-mbstring": "*",
@@ -934,7 +932,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.3.x-dev"
+                    "dev-master": "2.0.x-dev"
                 }
             },
             "autoload": {
@@ -974,7 +972,7 @@
                 "export",
                 "exporter"
             ],
-            "time": "2016-06-17 09:04:28"
+            "time": "2016-11-19T08:54:04+00:00"
         },
         {
             "name": "sebastian/global-state",
@@ -1025,25 +1023,25 @@
             "keywords": [
                 "global state"
             ],
-            "time": "2015-10-12 03:26:01"
+            "time": "2015-10-12T03:26:01+00:00"
         },
         {
             "name": "sebastian/object-enumerator",
-            "version": "1.0.0",
+            "version": "2.0.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/object-enumerator.git",
-                "reference": "d4ca2fb70344987502567bc50081c03e6192fb26"
+                "reference": "96f8a3f257b69e8128ad74d3a7fd464bcbaa3b35"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/object-enumerator/zipball/d4ca2fb70344987502567bc50081c03e6192fb26",
+                "url": "https://api.github.com/repos/sebastianbergmann/object-enumerator/zipball/96f8a3f257b69e8128ad74d3a7fd464bcbaa3b35",
-                "reference": "d4ca2fb70344987502567bc50081c03e6192fb26",
+                "reference": "96f8a3f257b69e8128ad74d3a7fd464bcbaa3b35",
                 "shasum": ""
             },
             "require": {
                 "php": ">=5.6",
-                "sebastian/recursion-context": "~1.0"
+                "sebastian/recursion-context": "~2.0"
             },
             "require-dev": {
                 "phpunit/phpunit": "~5"
@@ -1051,7 +1049,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.0.x-dev"
+                    "dev-master": "2.0.x-dev"
                 }
             },
             "autoload": {
@@ -1071,20 +1069,20 @@
             ],
             "description": "Traverses array structures and object graphs to enumerate all referenced objects",
             "homepage": "https://github.com/sebastianbergmann/object-enumerator/",
-            "time": "2016-01-28 13:25:10"
+            "time": "2016-11-19T07:35:10+00:00"
         },
         {
             "name": "sebastian/recursion-context",
-            "version": "1.0.2",
+            "version": "2.0.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/recursion-context.git",
-                "reference": "913401df809e99e4f47b27cdd781f4a258d58791"
+                "reference": "2c3ba150cbec723aa057506e73a8d33bdb286c9a"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/recursion-context/zipball/913401df809e99e4f47b27cdd781f4a258d58791",
+                "url": "https://api.github.com/repos/sebastianbergmann/recursion-context/zipball/2c3ba150cbec723aa057506e73a8d33bdb286c9a",
-                "reference": "913401df809e99e4f47b27cdd781f4a258d58791",
+                "reference": "2c3ba150cbec723aa057506e73a8d33bdb286c9a",
                 "shasum": ""
             },
             "require": {
@@ -1096,7 +1094,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.0.x-dev"
+                    "dev-master": "2.0.x-dev"
                 }
             },
             "autoload": {
@@ -1124,7 +1122,7 @@
             ],
             "description": "Provides functionality to recursively process PHP variables",
             "homepage": "http://www.github.com/sebastianbergmann/recursion-context",
-            "time": "2015-11-11 19:50:13"
+            "time": "2016-11-19T07:33:16+00:00"
         },
         {
             "name": "sebastian/resource-operations",
@@ -1166,20 +1164,20 @@
             ],
             "description": "Provides a list of PHP built-in functions that operate on resources",
             "homepage": "https://www.github.com/sebastianbergmann/resource-operations",
-            "time": "2015-07-28 20:34:47"
+            "time": "2015-07-28T20:34:47+00:00"
         },
         {
             "name": "sebastian/version",
-            "version": "2.0.0",
+            "version": "2.0.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/version.git",
-                "reference": "c829badbd8fdf16a0bad8aa7fa7971c029f1b9c5"
+                "reference": "99732be0ddb3361e16ad77b68ba41efc8e979019"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/version/zipball/c829badbd8fdf16a0bad8aa7fa7971c029f1b9c5",
+                "url": "https://api.github.com/repos/sebastianbergmann/version/zipball/99732be0ddb3361e16ad77b68ba41efc8e979019",
-                "reference": "c829badbd8fdf16a0bad8aa7fa7971c029f1b9c5",
+                "reference": "99732be0ddb3361e16ad77b68ba41efc8e979019",
                 "shasum": ""
             },
             "require": {
@@ -1209,73 +1207,24 @@
             ],
             "description": "Library that helps with managing the version number of Git-hosted PHP projects",
             "homepage": "https://github.com/sebastianbergmann/version",
-            "time": "2016-02-04 12:56:52"
+            "time": "2016-10-03T07:35:21+00:00"
-        },
-        {
-            "name": "symfony/yaml",
-            "version": "v3.1.4",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/symfony/yaml.git",
-                "reference": "f291ed25eb1435bddbe8a96caaef16469c2a092d"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/symfony/yaml/zipball/f291ed25eb1435bddbe8a96caaef16469c2a092d",
-                "reference": "f291ed25eb1435bddbe8a96caaef16469c2a092d",
-                "shasum": ""
-            },
-            "require": {
-                "php": ">=5.5.9"
-            },
-            "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "3.1-dev"
-                }
-            },
-            "autoload": {
-                "psr-4": {
-                    "Symfony\\Component\\Yaml\\": ""
-                },
-                "exclude-from-classmap": [
-                    "/Tests/"
-                ]
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Fabien Potencier",
-                    "email": "fabien@symfony.com"
-                },
-                {
-                    "name": "Symfony Community",
-                    "homepage": "https://symfony.com/contributors"
-                }
-            ],
-            "description": "Symfony Yaml Component",
-            "homepage": "https://symfony.com",
-            "time": "2016-09-02 02:12:52"
         },
         {
             "name": "webmozart/assert",
-            "version": "1.1.0",
+            "version": "1.2.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/webmozart/assert.git",
-                "reference": "bb2d123231c095735130cc8f6d31385a44c7b308"
+                "reference": "2db61e59ff05fe5126d152bd0655c9ea113e550f"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/webmozart/assert/zipball/bb2d123231c095735130cc8f6d31385a44c7b308",
+                "url": "https://api.github.com/repos/webmozart/assert/zipball/2db61e59ff05fe5126d152bd0655c9ea113e550f",
-                "reference": "bb2d123231c095735130cc8f6d31385a44c7b308",
+                "reference": "2db61e59ff05fe5126d152bd0655c9ea113e550f",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.3.3|^7.0"
+                "php": "^5.3.3 || ^7.0"
             },
             "require-dev": {
                 "phpunit/phpunit": "^4.6",
@@ -1284,7 +1233,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.2-dev"
+                    "dev-master": "1.3-dev"
                 }
             },
             "autoload": {
@@ -1308,7 +1257,7 @@
                 "check",
                 "validate"
             ],
-            "time": "2016-08-09 15:02:57"
+            "time": "2016-11-23T20:04:58+00:00"
         }
     ],
     "aliases": [],

src/Phpml/Exception/SerializeException.php

@@ -26,5 +26,4 @@ class SerializeException extends \Exception
     {
         return new self(sprintf('Class "%s" can not be serialized.', $classname));
     }
-
 }

tests/Phpml/Association/AprioriTest.php

@@ -6,8 +6,9 @@ namespace tests\Classification;
 
 use Phpml\Association\Apriori;
 use Phpml\ModelManager;
+use PHPUnit\Framework\TestCase;
 
-class AprioriTest extends \PHPUnit_Framework_TestCase
+class AprioriTest extends TestCase
 {
     private $sampleGreek = [
         ['alpha', 'beta', 'epsilon'],

tests/Phpml/Classification/DecisionTreeTest.php

@@ -6,8 +6,9 @@ namespace tests\Classification;
 
 use Phpml\Classification\DecisionTree;
 use Phpml\ModelManager;
+use PHPUnit\Framework\TestCase;
 
-class DecisionTreeTest extends \PHPUnit_Framework_TestCase
+class DecisionTreeTest extends TestCase
 {
     private $data = [
         ['sunny',        85,        85,    'false',    'Dont_play'    ],
@@ -73,7 +74,6 @@ class DecisionTreeTest extends \PHPUnit_Framework_TestCase
         $restoredClassifier = $modelManager->restoreFromFile($filepath);
         $this->assertEquals($classifier, $restoredClassifier);
         $this->assertEquals($predicted, $restoredClassifier->predict($testSamples));
-
     }
 
     public function testTreeDepth()

tests/Phpml/Classification/KNearestNeighborsTest.php

@@ -7,8 +7,9 @@ namespace tests\Classification;
 use Phpml\Classification\KNearestNeighbors;
 use Phpml\Math\Distance\Chebyshev;
 use Phpml\ModelManager;
+use PHPUnit\Framework\TestCase;
 
-class KNearestNeighborsTest extends \PHPUnit_Framework_TestCase
+class KNearestNeighborsTest extends TestCase
 {
     public function testPredictSingleSampleWithDefaultK()
     {

tests/Phpml/Classification/NaiveBayesTest.php

@@ -6,8 +6,9 @@ namespace tests\Classification;
 
 use Phpml\Classification\NaiveBayes;
 use Phpml\ModelManager;
+use PHPUnit\Framework\TestCase;
 
-class NaiveBayesTest extends \PHPUnit_Framework_TestCase
+class NaiveBayesTest extends TestCase
 {
     public function testPredictSingleSample()
     {
@@ -44,7 +45,6 @@ class NaiveBayesTest extends \PHPUnit_Framework_TestCase
         $testSamples = [[1, 1, 6], [5, 1, 1]];
         $testLabels = ['d', 'a'];
         $this->assertEquals($testLabels, $classifier->predict($testSamples));
-
     }
 
     public function testSaveAndRestore()
@@ -68,5 +68,4 @@ class NaiveBayesTest extends \PHPUnit_Framework_TestCase
         $this->assertEquals($classifier, $restoredClassifier);
         $this->assertEquals($predicted, $restoredClassifier->predict($testSamples));
     }
-
 }

tests/Phpml/Classification/SVCTest.php

@@ -7,8 +7,9 @@ namespace tests\Classification;
 use Phpml\Classification\SVC;
 use Phpml\SupportVectorMachine\Kernel;
 use Phpml\ModelManager;
+use PHPUnit\Framework\TestCase;
 
-class SVCTest extends \PHPUnit_Framework_TestCase
+class SVCTest extends TestCase
 {
     public function testPredictSingleSampleWithLinearKernel()
     {

tests/Phpml/Clustering/DBSCANTest.php

@@ -5,8 +5,9 @@ declare(strict_types=1);
 namespace tests\Clustering;
 
 use Phpml\Clustering\DBSCAN;
+use PHPUnit\Framework\TestCase;
 
-class DBSCANTest extends \PHPUnit_Framework_TestCase
+class DBSCANTest extends TestCase
 {
     public function testDBSCANSamplesClustering()
     {

tests/Phpml/Clustering/FuzzyCMeansTest.php

@@ -5,8 +5,9 @@ declare(strict_types=1);
 namespace tests\Clustering;
 
 use Phpml\Clustering\FuzzyCMeans;
+use PHPUnit\Framework\TestCase;
 
-class FuzzyCMeansTest extends \PHPUnit_Framework_TestCase
+class FuzzyCMeansTest extends TestCase
 {
     public function testFCMSamplesClustering()
     {

tests/Phpml/Clustering/KMeansTest.php

@@ -5,8 +5,9 @@ declare(strict_types=1);
 namespace tests\Clustering;
 
 use Phpml\Clustering\KMeans;
+use PHPUnit\Framework\TestCase;
 
-class KMeansTest extends \PHPUnit_Framework_TestCase
+class KMeansTest extends TestCase
 {
     public function testKMeansSamplesClustering()
     {

tests/Phpml/CrossValidation/RandomSplitTest.php

@@ -6,8 +6,9 @@ namespace tests\Phpml\CrossValidation;
 
 use Phpml\CrossValidation\RandomSplit;
 use Phpml\Dataset\ArrayDataset;
+use PHPUnit\Framework\TestCase;
 
-class RandomSplitTest extends \PHPUnit_Framework_TestCase
+class RandomSplitTest extends TestCase
 {
     /**
      * @expectedException \Phpml\Exception\InvalidArgumentException

tests/Phpml/CrossValidation/StratifiedRandomSplitTest.php

@@ -6,8 +6,9 @@ namespace tests\Phpml\CrossValidation;
 
 use Phpml\CrossValidation\StratifiedRandomSplit;
 use Phpml\Dataset\ArrayDataset;
+use PHPUnit\Framework\TestCase;
 
-class StratifiedRandomSplitTest extends \PHPUnit_Framework_TestCase
+class StratifiedRandomSplitTest extends TestCase
 {
     public function testDatasetStratifiedRandomSplitWithEvenDistribution()
     {

tests/Phpml/Dataset/ArrayDatasetTest.php

@@ -5,8 +5,9 @@ declare(strict_types=1);
 namespace tests\Phpml\Dataset;
 
 use Phpml\Dataset\ArrayDataset;
+use PHPUnit\Framework\TestCase;
 
-class ArrayDatasetTest extends \PHPUnit_Framework_TestCase
+class ArrayDatasetTest extends TestCase
 {
     /**
      * @expectedException \Phpml\Exception\InvalidArgumentException

tests/Phpml/Dataset/CsvDatasetTest.php

@@ -5,8 +5,9 @@ declare(strict_types=1);
 namespace tests\Phpml\Dataset;
 
 use Phpml\Dataset\CsvDataset;
+use PHPUnit\Framework\TestCase;
 
-class CsvDatasetTest extends \PHPUnit_Framework_TestCase
+class CsvDatasetTest extends TestCase
 {
     /**
      * @expectedException \Phpml\Exception\FileException

tests/Phpml/Dataset/Demo/GlassDatasetTest.php

@@ -5,8 +5,9 @@ declare(strict_types=1);
 namespace tests\Phpml\Dataset\Demo;
 
 use Phpml\Dataset\Demo\GlassDataset;
+use PHPUnit\Framework\TestCase;
 
-class GlassDatasetTest extends \PHPUnit_Framework_TestCase
+class GlassDatasetTest extends TestCase
 {
     public function testLoadingWineDataset()
     {

tests/Phpml/Dataset/Demo/IrisDatasetTest.php

@@ -5,8 +5,9 @@ declare(strict_types=1);
 namespace tests\Phpml\Dataset\Demo;
 
 use Phpml\Dataset\Demo\IrisDataset;
+use PHPUnit\Framework\TestCase;
 
-class IrisDatasetTest extends \PHPUnit_Framework_TestCase
+class IrisDatasetTest extends TestCase
 {
     public function testLoadingIrisDataset()
     {

tests/Phpml/Dataset/Demo/WineDatasetTest.php

@@ -5,8 +5,9 @@ declare(strict_types=1);
 namespace tests\Phpml\Dataset\Demo;
 
 use Phpml\Dataset\Demo\WineDataset;
+use PHPUnit\Framework\TestCase;
 
-class WineDatasetTest extends \PHPUnit_Framework_TestCase
+class WineDatasetTest extends TestCase
 {
     public function testLoadingWineDataset()
     {

tests/Phpml/Dataset/FilesDatasetTest.php

@@ -5,8 +5,9 @@ declare(strict_types=1);
 namespace tests\Phpml\Dataset;
 
 use Phpml\Dataset\FilesDataset;
+use PHPUnit\Framework\TestCase;
 
-class FilesDatasetTest extends \PHPUnit_Framework_TestCase
+class FilesDatasetTest extends TestCase
 {
     /**
      * @expectedException \Phpml\Exception\DatasetException

tests/Phpml/FeatureExtraction/StopWordsTest.php

@@ -5,8 +5,9 @@ declare(strict_types=1);
 namespace tests\Phpml\FeatureExtraction;
 
 use Phpml\FeatureExtraction\StopWords;
+use PHPUnit\Framework\TestCase;
 
-class StopWordsTest extends \PHPUnit_Framework_TestCase
+class StopWordsTest extends TestCase
 {
     public function testCustomStopWords()
     {

tests/Phpml/FeatureExtraction/TfIdfTransformerTest.php

@@ -5,8 +5,9 @@ declare(strict_types=1);
 namespace tests\Phpml\FeatureExtraction;
 
 use Phpml\FeatureExtraction\TfIdfTransformer;
+use PHPUnit\Framework\TestCase;
 
-class TfIdfTransformerTest extends \PHPUnit_Framework_TestCase
+class TfIdfTransformerTest extends TestCase
 {
     public function testTfIdfTransformation()
     {

tests/Phpml/FeatureExtraction/TokenCountVectorizerTest.php

@@ -7,8 +7,9 @@ namespace tests\Phpml\FeatureExtraction;
 use Phpml\FeatureExtraction\StopWords;
 use Phpml\FeatureExtraction\TokenCountVectorizer;
 use Phpml\Tokenization\WhitespaceTokenizer;
+use PHPUnit\Framework\TestCase;
 
-class TokenCountVectorizerTest extends \PHPUnit_Framework_TestCase
+class TokenCountVectorizerTest extends TestCase
 {
     public function testTransformationWithWhitespaceTokenizer()
     {

tests/Phpml/Math/Distance/ChebyshevTest.php

@@ -5,8 +5,9 @@ declare(strict_types=1);
 namespace tests\Phpml\Metric;
 
 use Phpml\Math\Distance\Chebyshev;
+use PHPUnit\Framework\TestCase;
 
-class ChebyshevTest extends \PHPUnit_Framework_TestCase
+class ChebyshevTest extends TestCase
 {
     /**
      * @var Chebyshev

tests/Phpml/Math/Distance/EuclideanTest.php

@@ -5,8 +5,9 @@ declare(strict_types=1);
 namespace tests\Phpml\Metric;
 
 use Phpml\Math\Distance\Euclidean;
+use PHPUnit\Framework\TestCase;
 
-class EuclideanTest extends \PHPUnit_Framework_TestCase
+class EuclideanTest extends TestCase
 {
     /**
      * @var Euclidean

tests/Phpml/Math/Distance/ManhattanTest.php

@@ -5,8 +5,9 @@ declare(strict_types=1);
 namespace tests\Phpml\Metric;
 
 use Phpml\Math\Distance\Manhattan;
+use PHPUnit\Framework\TestCase;
 
-class ManhattanTest extends \PHPUnit_Framework_TestCase
+class ManhattanTest extends TestCase
 {
     /**
      * @var Manhattan

tests/Phpml/Math/Distance/MinkowskiTest.php

@@ -5,8 +5,9 @@ declare(strict_types=1);
 namespace tests\Phpml\Metric;
 
 use Phpml\Math\Distance\Minkowski;
+use PHPUnit\Framework\TestCase;
 
-class MinkowskiTest extends \PHPUnit_Framework_TestCase
+class MinkowskiTest extends TestCase
 {
     /**
      * @var Minkowski

tests/Phpml/Math/Kernel/RBFTest.php

@@ -5,8 +5,9 @@ declare(strict_types=1);
 namespace test\Phpml\Math\Kernel;
 
 use Phpml\Math\Kernel\RBF;
+use PHPUnit\Framework\TestCase;
 
-class RBFTest extends \PHPUnit_Framework_TestCase
+class RBFTest extends TestCase
 {
     public function testComputeRBFKernelFunction()
     {

tests/Phpml/Math/MatrixTest.php

@@ -5,8 +5,9 @@ declare(strict_types=1);
 namespace tests\Phpml\Math;
 
 use Phpml\Math\Matrix;
+use PHPUnit\Framework\TestCase;
 
-class MatrixTest extends \PHPUnit_Framework_TestCase
+class MatrixTest extends TestCase
 {
     /**
      * @expectedException \Phpml\Exception\InvalidArgumentException

tests/Phpml/Math/ProductTest.php

@@ -5,8 +5,9 @@ declare(strict_types=1);
 namespace tests\Phpml\Math;
 
 use Phpml\Math\Product;
+use PHPUnit\Framework\TestCase;
 
-class ProductTest extends \PHPUnit_Framework_TestCase
+class ProductTest extends TestCase
 {
     public function testScalarProduct()
     {

tests/Phpml/Math/SetTest.php

@@ -1,10 +1,13 @@
-<?php declare(strict_types=1);
+<?php
+
+declare(strict_types=1);
 
 namespace tests\Phpml\Math;
 
 use Phpml\Math\Set;
+use PHPUnit\Framework\TestCase;
 
-class SetTest extends \PHPUnit_Framework_TestCase
+class SetTest extends TestCase
 {
     public function testUnion()
     {

tests/Phpml/Math/Statistic/CorrelationTest.php

@@ -5,8 +5,9 @@ declare(strict_types=1);
 namespace test\Phpml\Math\StandardDeviation;
 
 use Phpml\Math\Statistic\Correlation;
+use PHPUnit\Framework\TestCase;
 
-class CorrelationTest extends \PHPUnit_Framework_TestCase
+class CorrelationTest extends TestCase
 {
     public function testPearsonCorrelation()
     {

tests/Phpml/Math/Statistic/MeanTest.php

@@ -5,8 +5,9 @@ declare(strict_types=1);
 namespace test\Phpml\Math\StandardDeviation;
 
 use Phpml\Math\Statistic\Mean;
+use PHPUnit\Framework\TestCase;
 
-class MeanTest extends \PHPUnit_Framework_TestCase
+class MeanTest extends TestCase
 {
     /**
      * @expectedException \Phpml\Exception\InvalidArgumentException

tests/Phpml/Math/Statistic/StandardDeviationTest.php

@@ -5,8 +5,9 @@ declare(strict_types=1);
 namespace test\Phpml\Math\StandardDeviation;
 
 use Phpml\Math\Statistic\StandardDeviation;
+use PHPUnit\Framework\TestCase;
 
-class StandardDeviationTest extends \PHPUnit_Framework_TestCase
+class StandardDeviationTest extends TestCase
 {
     public function testStandardDeviationOfPopulationSample()
     {

tests/Phpml/Metric/AccuracyTest.php

@@ -9,8 +9,9 @@ use Phpml\CrossValidation\RandomSplit;
 use Phpml\Dataset\Demo\IrisDataset;
 use Phpml\Metric\Accuracy;
 use Phpml\SupportVectorMachine\Kernel;
+use PHPUnit\Framework\TestCase;
 
-class AccuracyTest extends \PHPUnit_Framework_TestCase
+class AccuracyTest extends TestCase
 {
     /**
      * @expectedException \Phpml\Exception\InvalidArgumentException

tests/Phpml/Metric/ClassificationReportTest.php

@@ -5,8 +5,9 @@ declare(strict_types=1);
 namespace tests\Phpml\Metric;
 
 use Phpml\Metric\ClassificationReport;
+use PHPUnit\Framework\TestCase;
 
-class ClassificationReportTest extends \PHPUnit_Framework_TestCase
+class ClassificationReportTest extends TestCase
 {
     public function testClassificationReportGenerateWithStringLabels()
     {

tests/Phpml/Metric/ConfusionMatrixTest.php

@@ -5,8 +5,9 @@ declare(strict_types=1);
 namespace tests\Phpml\Metric;
 
 use Phpml\Metric\ConfusionMatrix;
+use PHPUnit\Framework\TestCase;
 
-class ConfusionMatrixTest extends \PHPUnit_Framework_TestCase
+class ConfusionMatrixTest extends TestCase
 {
     public function testComputeConfusionMatrixOnNumericLabels()
     {

tests/Phpml/ModelManagerTest.php

@@ -6,10 +6,10 @@ namespace tests;
 
 use Phpml\ModelManager;
 use Phpml\Regression\LeastSquares;
+use PHPUnit\Framework\TestCase;
 
-class ModelManagerTest extends \PHPUnit_Framework_TestCase
+class ModelManagerTest extends TestCase
 {
-
     public function testSaveAndRestore()
     {
         $filename = 'test-save-to-file-'.rand(100, 999).'-'.uniqid();

tests/Phpml/NeuralNetwork/ActivationFunction/BinaryStepTest.php

@@ -5,8 +5,9 @@ declare(strict_types=1);
 namespace tests\Phpml\NeuralNetwork\ActivationFunction;
 
 use Phpml\NeuralNetwork\ActivationFunction\BinaryStep;
+use PHPUnit\Framework\TestCase;
 
-class BinaryStepTest extends \PHPUnit_Framework_TestCase
+class BinaryStepTest extends TestCase
 {
     /**
      * @param $expected

tests/Phpml/NeuralNetwork/ActivationFunction/GaussianTest.php

@@ -5,8 +5,9 @@ declare(strict_types=1);
 namespace tests\Phpml\NeuralNetwork\ActivationFunction;
 
 use Phpml\NeuralNetwork\ActivationFunction\Gaussian;
+use PHPUnit\Framework\TestCase;
 
-class GaussianTest extends \PHPUnit_Framework_TestCase
+class GaussianTest extends TestCase
 {
     /**
      * @param $expected

tests/Phpml/NeuralNetwork/ActivationFunction/HyperboliTangentTest.php

@@ -5,8 +5,9 @@ declare(strict_types=1);
 namespace tests\Phpml\NeuralNetwork\ActivationFunction;
 
 use Phpml\NeuralNetwork\ActivationFunction\HyperbolicTangent;
+use PHPUnit\Framework\TestCase;
 
-class HyperboliTangentTest extends \PHPUnit_Framework_TestCase
+class HyperboliTangentTest extends TestCase
 {
     /**
      * @param $beta

tests/Phpml/NeuralNetwork/ActivationFunction/SigmoidTest.php

@@ -5,8 +5,9 @@ declare(strict_types=1);
 namespace tests\Phpml\NeuralNetwork\ActivationFunction;
 
 use Phpml\NeuralNetwork\ActivationFunction\Sigmoid;
+use PHPUnit\Framework\TestCase;
 
-class SigmoidTest extends \PHPUnit_Framework_TestCase
+class SigmoidTest extends TestCase
 {
     /**
      * @param $beta

tests/Phpml/NeuralNetwork/LayerTest.php

@@ -7,8 +7,9 @@ namespace tests\Phpml\NeuralNetwork;
 use Phpml\NeuralNetwork\Node\Bias;
 use Phpml\NeuralNetwork\Layer;
 use Phpml\NeuralNetwork\Node\Neuron;
+use PHPUnit\Framework\TestCase;
 
-class LayerTest extends \PHPUnit_Framework_TestCase
+class LayerTest extends TestCase
 {
     public function testLayerInitialization()
     {

tests/Phpml/NeuralNetwork/Network/LayeredNetworkTest.php

@@ -7,8 +7,9 @@ namespace tests\Phpml\NeuralNetwork\Network;
 use Phpml\NeuralNetwork\Layer;
 use Phpml\NeuralNetwork\Network\LayeredNetwork;
 use Phpml\NeuralNetwork\Node\Input;
+use PHPUnit\Framework\TestCase;
 
-class LayeredNetworkTest extends \PHPUnit_Framework_TestCase
+class LayeredNetworkTest extends TestCase
 {
     public function testLayersSettersAndGetters()
     {

tests/Phpml/NeuralNetwork/Network/MultilayerPerceptronTest.php

@@ -6,8 +6,9 @@ namespace tests\Phpml\NeuralNetwork\Network;
 
 use Phpml\NeuralNetwork\Network\MultilayerPerceptron;
 use Phpml\NeuralNetwork\Node\Neuron;
+use PHPUnit\Framework\TestCase;
 
-class MultilayerPerceptronTest extends \PHPUnit_Framework_TestCase
+class MultilayerPerceptronTest extends TestCase
 {
     public function testMultilayerPerceptronLayersInitialization()
     {

tests/Phpml/NeuralNetwork/Node/BiasTest.php

@@ -5,8 +5,9 @@ declare(strict_types=1);
 namespace tests\Phpml\NeuralNetwork\Node;
 
 use Phpml\NeuralNetwork\Node\Bias;
+use PHPUnit\Framework\TestCase;
 
-class BiasTest extends \PHPUnit_Framework_TestCase
+class BiasTest extends TestCase
 {
     public function testBiasOutput()
     {

tests/Phpml/NeuralNetwork/Node/InputTest.php

@@ -5,8 +5,9 @@ declare(strict_types=1);
 namespace tests\Phpml\NeuralNetwork\Node;
 
 use Phpml\NeuralNetwork\Node\Input;
+use PHPUnit\Framework\TestCase;
 
-class InputTest extends \PHPUnit_Framework_TestCase
+class InputTest extends TestCase
 {
     public function testInputInitialization()
     {

tests/Phpml/NeuralNetwork/Node/Neuron/SynapseTest.php

@@ -6,8 +6,9 @@ namespace tests\Phpml\NeuralNetwork\Node\Neuron;
 
 use Phpml\NeuralNetwork\Node\Neuron\Synapse;
 use Phpml\NeuralNetwork\Node\Neuron;
+use PHPUnit\Framework\TestCase;
 
-class SynapseTest extends \PHPUnit_Framework_TestCase
+class SynapseTest extends TestCase
 {
     public function testSynapseInitialization()
     {

tests/Phpml/NeuralNetwork/Node/NeuronTest.php

@@ -7,8 +7,9 @@ namespace tests\Phpml\NeuralNetwork\Node;
 use Phpml\NeuralNetwork\ActivationFunction\BinaryStep;
 use Phpml\NeuralNetwork\Node\Neuron;
 use Phpml\NeuralNetwork\Node\Neuron\Synapse;
+use PHPUnit\Framework\TestCase;
 
-class NeuronTest extends \PHPUnit_Framework_TestCase
+class NeuronTest extends TestCase
 {
     public function testNeuronInitialization()
     {

tests/Phpml/NeuralNetwork/Training/BackpropagationTest.php

@@ -6,8 +6,9 @@ namespace tests\Phpml\NeuralNetwork\Training;
 
 use Phpml\NeuralNetwork\Network\MultilayerPerceptron;
 use Phpml\NeuralNetwork\Training\Backpropagation;
+use PHPUnit\Framework\TestCase;
 
-class BackpropagationTest extends \PHPUnit_Framework_TestCase
+class BackpropagationTest extends TestCase
 {
     public function testBackpropagationForXORLearning()
     {

tests/Phpml/PipelineTest.php

@@ -11,8 +11,9 @@ use Phpml\Preprocessing\Imputer;
 use Phpml\Preprocessing\Normalizer;
 use Phpml\Preprocessing\Imputer\Strategy\MostFrequentStrategy;
 use Phpml\Regression\SVR;
+use PHPUnit\Framework\TestCase;
 
-class PipelineTest extends \PHPUnit_Framework_TestCase
+class PipelineTest extends TestCase
 {
     public function testPipelineConstruction()
     {

tests/Phpml/Preprocessing/ImputerTest.php

@@ -8,8 +8,9 @@ use Phpml\Preprocessing\Imputer;
 use Phpml\Preprocessing\Imputer\Strategy\MeanStrategy;
 use Phpml\Preprocessing\Imputer\Strategy\MedianStrategy;
 use Phpml\Preprocessing\Imputer\Strategy\MostFrequentStrategy;
+use PHPUnit\Framework\TestCase;
 
-class ImputerTest extends \PHPUnit_Framework_TestCase
+class ImputerTest extends TestCase
 {
     public function testComplementsMissingValuesWithMeanStrategyOnColumnAxis()
     {

tests/Phpml/Preprocessing/NormalizerTest.php

@@ -5,8 +5,9 @@ declare(strict_types=1);
 namespace tests\Preprocessing;
 
 use Phpml\Preprocessing\Normalizer;
+use PHPUnit\Framework\TestCase;
 
-class NormalizerTest extends \PHPUnit_Framework_TestCase
+class NormalizerTest extends TestCase
 {
     /**
      * @expectedException \Phpml\Exception\NormalizerException

tests/Phpml/Regression/LeastSquaresTest.php

@@ -6,8 +6,9 @@ namespace tests\Regression;
 
 use Phpml\Regression\LeastSquares;
 use Phpml\ModelManager;
+use PHPUnit\Framework\TestCase;
 
-class LeastSquaresTest extends \PHPUnit_Framework_TestCase
+class LeastSquaresTest extends TestCase
 {
     public function testPredictSingleFeatureSamples()
     {
@@ -89,5 +90,4 @@ class LeastSquaresTest extends \PHPUnit_Framework_TestCase
         $this->assertEquals($regression, $restoredRegression);
         $this->assertEquals($predicted, $restoredRegression->predict($testSamples));
     }
-
 }

tests/Phpml/Regression/SVRTest.php

@@ -7,8 +7,9 @@ namespace tests\Regression;
 use Phpml\Regression\SVR;
 use Phpml\SupportVectorMachine\Kernel;
 use Phpml\ModelManager;
+use PHPUnit\Framework\TestCase;
 
-class SVRTest extends \PHPUnit_Framework_TestCase
+class SVRTest extends TestCase
 {
     public function testPredictSingleFeatureSamples()
     {
@@ -38,7 +39,6 @@ class SVRTest extends \PHPUnit_Framework_TestCase
 
     public function testSaveAndRestore()
     {
-
         $samples = [[60], [61], [62], [63], [65]];
         $targets = [3.1, 3.6, 3.8, 4, 4.1];
 
@@ -57,5 +57,4 @@ class SVRTest extends \PHPUnit_Framework_TestCase
         $this->assertEquals($regression, $restoredRegression);
         $this->assertEquals($predicted, $restoredRegression->predict($testSamples));
     }
-
 }

tests/Phpml/SupportVectorMachine/DataTransformerTest.php

@@ -5,8 +5,9 @@ declare(strict_types=1);
 namespace tests\SupportVectorMachine;
 
 use Phpml\SupportVectorMachine\DataTransformer;
+use PHPUnit\Framework\TestCase;
 
-class DataTransformerTest extends \PHPUnit_Framework_TestCase
+class DataTransformerTest extends TestCase
 {
     public function testTransformDatasetToTrainingSet()
     {

tests/Phpml/SupportVectorMachine/SupportVectorMachineTest.php

@@ -7,8 +7,9 @@ namespace tests\SupportVectorMachine;
 use Phpml\SupportVectorMachine\Kernel;
 use Phpml\SupportVectorMachine\SupportVectorMachine;
 use Phpml\SupportVectorMachine\Type;
+use PHPUnit\Framework\TestCase;
 
-class SupportVectorMachineTest extends \PHPUnit_Framework_TestCase
+class SupportVectorMachineTest extends TestCase
 {
     public function testTrainCSVCModelWithLinearKernel()
     {

tests/Phpml/Tokenization/WhitespaceTokenizerTest.php

@@ -5,8 +5,9 @@ declare(strict_types=1);
 namespace tests\Tokenization;
 
 use Phpml\Tokenization\WhitespaceTokenizer;
+use PHPUnit\Framework\TestCase;
 
-class WhitespaceTokenizerTest extends \PHPUnit_Framework_TestCase
+class WhitespaceTokenizerTest extends TestCase
 {
     public function testTokenizationOnAscii()
     {

tests/Phpml/Tokenization/WordTokenizerTest.php

@@ -5,8 +5,9 @@ declare(strict_types=1);
 namespace tests\Tokenization;
 
 use Phpml\Tokenization\WordTokenizer;
+use PHPUnit\Framework\TestCase;
 
-class WordTokenizerTest extends \PHPUnit_Framework_TestCase
+class WordTokenizerTest extends TestCase
 {
     public function testTokenizationOnAscii()
     {