Add data provider for testGenDiff()

Author: NikolaiProgramist

tests/DifferTest.php

@@ -3,6 +3,7 @@
 namespace Differ\Tests;
 
 use PHPUnit\Framework\TestCase;
+use PHPUnit\Framework\Attributes\DataProvider;
 
 use function Differ\Differ\genDiff;
 use function PHPUnit\Framework\assertEquals;
@@ -13,9 +14,6 @@ class DifferTest extends TestCase
     private string $beforeJsonPath;
     private string $afterYamlPath;
     private string $beforeYamlPath;
-    private string $resultStylishPath;
-    private string $resultPlainPath;
-    private string $resultJsonPath;
 
     public function setUp(): void
     {
@@ -24,10 +22,6 @@ public function setUp(): void
 
         $this->beforeYamlPath = $this->getFixturePath('before.yaml');
         $this->afterYamlPath = $this->getFixturePath('after.yaml');
-
-        $this->resultStylishPath = $this->getFixturePath('resultStylish.txt');
-        $this->resultPlainPath = $this->getFixturePath('resultPlain.txt');
-        $this->resultJsonPath = $this->getFixturePath('resultJson.txt');
     }
 
     public function getFixturePath(string $fixtureName): string
@@ -36,58 +30,26 @@ public function getFixturePath(string $fixtureName): string
         return realpath(implode('/', $parts));
     }
 
-    public function testGenDiff(): void
+    #[DataProvider('genDiffProvider')]
+    public function testGenDiff($resultName, $format): void
     {
         assertEquals(
-            file_get_contents($this->resultStylishPath),
-            genDiff(
-                $this->beforeJsonPath,
-                $this->afterJsonPath
-            )
-        );
-
-        assertEquals(
-            file_get_contents($this->resultStylishPath),
-            genDiff(
-                $this->beforeYamlPath,
-                $this->afterYamlPath
-            )
-        );
-
-        assertEquals(
-            file_get_contents($this->resultPlainPath),
-            genDiff(
-                $this->beforeJsonPath,
-                $this->afterJsonPath,
-                'plain'
-            )
+            file_get_contents($this->getFixturePath($resultName)),
+            genDiff($this->beforeJsonPath, $this->afterJsonPath, $format)
         );
 
         assertEquals(
-            file_get_contents($this->resultPlainPath),
-            genDiff(
-                $this->beforeYamlPath,
-                $this->afterYamlPath,
-                'plain'
-            )
-        );
-
-        assertEquals(
-            file_get_contents($this->resultJsonPath),
-            genDiff(
-                $this->beforeYamlPath,
-                $this->afterYamlPath,
-                'json'
-            )
+            file_get_contents($this->getFixturePath($resultName)),
+            genDiff($this->beforeYamlPath, $this->afterYamlPath, $format)
         );
+    }
 
-        assertEquals(
-            file_get_contents($this->resultJsonPath),
-            genDiff(
-                $this->beforeJsonPath,
-                $this->afterJsonPath,
-                'json'
-            )
-        );
+    public static function genDiffProvider(): array
+    {
+        return [
+            ['resultStylish.txt', 'stylish'],
+            ['resultPlain.txt', 'plain'],
+            ['resultJson.txt', 'json']
+        ];
     }
 }